Computer Networking

HACK WPS WIFI EASILY USING DUMPPER

noreply@blogger.com (Unknown) — Mon, 29 Sep 2014 05:16:00 +0000

1.download dumpper.rar

2.install jumpstart its in the same rar

3.open dumpper4.click on wps5.click ontodas las redes6.click on escannear7.it will show the wifi that can be hack8.click on wifi you want to hack9.click oninciar jumpstart

Download dumpper and jumpstart click here

INSTALL AVG INTERNET SECURITY FOR FREE

noreply@blogger.com (Unknown) — Fri, 01 Aug 2014 15:06:00 +0000

HERE IS A METHOD TO INSTALL THE AVG INTERNET SECURITY FOR FREE

ITS VERY EASY.

CLICK HERE TO INSTALL AVG .

AFTER INSTALLATION OPEN AVG INTERNET SECURITY

THEN GO TO OPTION/ACTIVATE

PASTE THIS CODE 8MEH-RXYFD-JUV72-8922R-FTBZ6-QEMBR-ACED AND PRESS ACTIVATE
DONE :)

MODERN COMBAT 5 :BLACKOUT FREE DOWNLOAD (DATA+ APK)

noreply@blogger.com (Unknown) — Mon, 28 Jul 2014 15:09:00 +0000

INSTRUCTION TO INSTALL

- Copy folder “com.gameloft.android.ANMP.GloftM5HM”

-Paste it into sdcard0/android/obb

-Install apk

Launch game( Internet connectivity required)

CLICK HERE TO DOWNLOAD

Hot spot shield elite free download +crack (to change ip)

noreply@blogger.com (Unknown) — Fri, 11 Jul 2014 06:28:00 +0000

Hi fren, Here many of you are trying to change the ip address of your

now, heres the simple way to change the ip address. By using hotspot shield(hss).

This is the easy to to change the ip address just go to google search for hotspot sheild

and download it for free. You just need to install nothing more than that. :)

Download link : click here Crack :click here

Installation Instructions

Go to

C:\WINDOWS\system32\drivers\etc

then open host file with notepad and paste below lines..

127.0.0.1 anchorfree.net

127.0.0.1 rss2search.com

127.0.0.1 techbrowsing.com

127.0.0.1 box.anchorfree.net

127.0.0.1 www.mefeedia.com

127.0.0.3 www.anchorfree.net

127.0.0.2 www.mefeedia.com

then save and close notepad.. thats it.. :)

For more cool & Latest softwares Visit!

. Enjoy! ;)

----------------------------------

C program compiler c4droid free download

noreply@blogger.com (Unknown) — Sat, 21 Jun 2014 15:57:00 +0000

C4droid is the complier for android.It the best compiler that can compile your any codes, HAVE FUN COMPLINING

FOR DOWNLOAD CLICK HERE

MX PLAYER PRO FREE DOWNLOAD

noreply@blogger.com (Unknown) — Sat, 21 Jun 2014 15:52:00 +0000

MX Video Player is the first Android video player that can play almost all videos.

CLICK HERE TO DOWNLOAD torrent

APK

The Dark Knight Rises v1.1.3 Apk + SD Data (free download)/ HOW TO INSTALL

noreply@blogger.com (Unknown) — Sat, 21 Jun 2014 15:47:00 +0000

1) First install BATMAN.apk (don`t run)

2) Then copy data file com.gameloft.android.ANMP.GloftKRHM in sd card\android\obb Then play the game :)NEEDS TO RUN ONLINE 1ST
If its say unfortunately the game has stopped the again install the .apk and run the gameTested in NOTE 2

DOWNLOAD LINK

CLICK HERE

APK

SD DATA : PART1 PART2 PART3 PART4

TORRENT

BST implementation in C

noreply@blogger.com (Unknown) — Thu, 08 May 2014 08:48:00 +0000

include "stdio.h"
include "stdlib.h"
include "time.h"

struct treeNode {
struct treeNode *leftPtr; /* pointer to left subtree */
int data; /* node value */
struct treeNode *rightPtr; /* pointer to right subtree */
};

typedef struct treeNode TreeNode; /* synonym for struct treeNode */
typedef TreeNode *TreeNodePtr; /* synonym for TreeNode* */

/* prototypes */
void insertNode( TreeNodePtr *treePtr, int value );
void inOrder( TreeNodePtr treePtr );
void preOrder( TreeNodePtr treePtr );
void postOrder( TreeNodePtr treePtr );

int main( void )
{
int i; /* counter to loop from 1-10 */
int item; /* variable to hold random values */
TreeNodePtr rootPtr = NULL; /* tree initially empty */

srand( time( NULL ) );
printf( "The numbers being placed in the tree are:\n" );

/* insert random values between 0 and 14 in the tree */
for ( i = 1; i <= 10; i++ ) {
item = rand() % 55;
printf( "%3d", item );

insertNode( &rootPtr, item );

} /* end for */

/* traverse the tree preOrder */
printf( "\n\nThe preOrder traversal is:\n" );

preOrder( rootPtr );

printf( "\n\nThe inOrder traversal is:\n" );

inOrder( rootPtr );

printf( "\n\nThe postOrder traversal is:\n" );

postOrder( rootPtr );

getch();
return 0; /* indicates successful termination */
} /* end main */

/* insert node into tree */
void insertNode( TreeNodePtr *treePtr, int value )
{
/* if tree is empty */
if ( *treePtr == NULL ) {
*treePtr = malloc( sizeof( TreeNode ) );

/* if memory was allocated then assign data */
if ( *treePtr != NULL ) {
( *treePtr )->data = value;
( *treePtr )->leftPtr = NULL;
( *treePtr )->rightPtr = NULL;
} /* end if */
else {
printf( "%d not inserted. No memory available.\n", value );
} /* end else */
} /* end if */

else {
if ( value < ( *treePtr )->data ) {
insertNode( &( ( *treePtr )->leftPtr ), value );
}

else if ( value > ( *treePtr )->data ) {
insertNode( &( ( *treePtr )->rightPtr ), value );
}

else { /* duplicate data value ignored */
printf( "dup" );
} /* end else */
} /* end else */
} /* end function insertNode */

/* begin inorder traversal of tree */
void inOrder( TreeNodePtr treePtr )
{

if ( treePtr != NULL ) {
inOrder( treePtr->leftPtr );
printf( "%3d", treePtr->data );
inOrder( treePtr->rightPtr );
}

} /* end function inOrder */

/* begin preorder traversal of tree */
void preOrder( TreeNodePtr treePtr )
{

if ( treePtr != NULL ) {
printf( "%3d", treePtr->data );
preOrder( treePtr->leftPtr );
preOrder( treePtr->rightPtr );
}

} /* end function preOrder */

/* begin postorder traversal of tree */
void postOrder( TreeNodePtr treePtr )
{

if ( treePtr != NULL ) {
postOrder( treePtr->leftPtr );
postOrder( treePtr->rightPtr );
printf( "%3d", treePtr->data );
}
}

free download internet download manger with crack. (Idm

noreply@blogger.com (Unknown) — Fri, 02 May 2014 15:48:00 +0000

INSTRUCTIONS:

1. Install IDM v6.19
2. Make sure to exit IDM v6.19 from icon tray.
3. Copy IDMan.exe to File Location (C:\Program Files\Internet Download Manager) & replace with the original file.
4. Open RegKey
4. Enjoy :)

FOR DOWNLOAD CLICK BELOW :)

IDM

IDM CRACK

REGKEY

Expert Systems

noreply@blogger.com (Unknown) — Fri, 25 Apr 2014 19:03:00 +0000

An expert system is an example of a knowledge-based system.The goal of knowledge-based systems is to make the critical information required for the system to work explicit rather than implicit. In a traditional computer program the logic is embedded in code that can typically only be reviewed by an IT specialist. With an expert system the goal was to specify the rules in a format that was intuitive and easily understood, reviewed, and even edited by domain experts rather than IT experts. The benefits of this explicit knowledge representation were rapid development and ease of maintenance.

Ease of maintenance is the most obvious benefit. This was achieved in two ways. First, by removing the need to write conventional code many of the normal problems that can be caused by even small changes to a system could be avoided with expert systems. Essentially, the logical flow of the program (at least at the highest level) was simply a given for the system, simply invoke the inference engine. This also was a reason for the second benefit: rapid prototyping. With an expert system shell it was possible to enter a few rules and have a prototype developed in days rather than the months or year typically associated with complex IT projects.

A claim for expert system shells that was often made was that they removed the need for trained programmers and that experts could develop systems themselves. In reality this was seldom if ever true. While the rules for an expert system were more comprehensible than typical computer code they still had a formal syntax where a misplaced comma or other character could cause havoc as with any other computer language. In addition as expert systems moved from prototypes in the lab to deployment in the business world issues of integration and maintenance became far more critical. Inevitably demands to integrate with and take advantage of large legacy databases and systems arose. To accomplish this integration required the same skills as any other type of system.

Sorted Linked List implementation in C

noreply@blogger.com (Unknown) — Tue, 22 Apr 2014 08:12:00 +0000

include "stdio.h"
include "stdlib.h"
include "conio.h"

void del(int data);
void insert(int value);
void display();

struct node
{
int data;
struct node *link;
};

struct node *top=NULL,*temp, *temp1, *temp2, *temp3;

int main()
{
int choice,data;

while(1) //infinite loop is used to insert/delete infinite number of elements in linked list
{

printf("\n1.Insert\n2.Delete\n3.Display\n4.Exit\n");
printf("\nEnter ur choice:");
scanf("%d",&choice);
switch(choice)
{
case 1:

printf("Enter a new element :");
scanf("%d",&data);
insert(data);
break;

case 2:

printf("Enter the value to be deleted from sorted linked list :");
scanf("%d",&data);

del(data);
break;

case 3:
display();
break;
case 4:
exit(0);
}

}
getch();
return 0;
}

void insert(int data)
{

temp=(struct node *)malloc(sizeof(struct node));
temp->data=data;

if(top == NULL)
{

temp->link=NULL;
top=temp;

}
else // top not null
{
temp1 = top ;
while(temp1 != NULL)
{
if(temp1->data >= data) // list element is smaller ...

{
if(temp1 == top) // list element is head ...
{
temp->link = temp1;

top = temp;
break;

}
else // list element is not head ..
{

temp->link = temp1;
temp2->link = temp;
break;
}

}
else
{

if(temp1->link == NULL)
{
temp->link = NULL;
temp1->link = temp;
break;

}
else
{
temp2 = temp1;
temp1 = temp1->link;
}

}

}

}
// creating a space for the new element.

}

void del(int data)
{
struct node *temp,*var;
temp=top;
int i=0;
while(temp!=NULL)
{
if(temp->data == data)
{ i = 1; // Flag ..
if(temp==top)
{
top=temp->link;
free(temp);
break;
}
else
{
var->link=temp->link;
free(temp);
break;

}
}
else
{
var=temp;
temp=temp->link;
}
}
if(i == 1)
{
printf("data deleted from list is %d",data);

}
else
{
printf("\n The required data, %d is not found in the list. go look somewhere else",data);

}
}

void display()
{
temp=top;
if(temp==NULL)
{
printf("\nStack is empty\n");
}

while(temp!=NULL)
{
printf(" %d ->",temp->data);
temp=temp->link;
}

}

How to secure asterisk and a2billing

noreply@blogger.com (Unknown) — Sun, 13 Apr 2014 05:31:00 +0000

Hi Guys,

We all know that A2Billing is a great voip billing system for calling cards and sip calling, but many of us face security issues with asterisk and a2billing every now and then the server gets compromised and we loose our hard earned money just like that .. bad haa? No worries here are some suggestions using which you can secure your server and prevent the bad guys to take away your money.

Change default a2billing passwords like admin password ,mysql password,manager password.

After installing a2billing your first step should be changing all default passwords.

1. A2Billing admin password (default password is chnagepassword)

2. Use a secure database password

3. Change default asterisk manager username and password to a secure one. (default username : myasterisk pass: mycode)

Change the default admin folder name from /a2billing/admin to other secured name

Hackers usually hit and try the default folders on your ip/URL so its always good to change the folder name to some secure name instead of admin like my_s3cureadm3n.

Use ssl, redirect all the traffic from http urls to https.

Its always good to use ssl to secure connection.

Make sure that the mysql service is not available from out side

Make sure that mysql server is only accessible from localhost and is not accessible from any outside ip/domain, otherwise hacker may get into database and steel your important information like card numbers etc.

Use different ssh port other than port 22

Use other than 22 port for ssh as hackers try to brute force on port 22 to get into the server.

Secure your asterisk from brut force using fail2ban

User fail to ban to block ip if someone enters wrong password for more than 3 times.

Secure your web acess and web2call pages using fail2ban.

Allow only selected ips to access the web interfaces. Block Ips if they enter wrong username,password repeatedly.

Add only rates that you got from your termination provider,do not allow calls to expensive area codes.

Its highly recommendable to keep only the destinations which are provided by your termination provided.

The hacker use the stolen account to call on premium number which can cause you huge loss.

Verify customers phone number on signup to prevent fraud.

Verify users phone number on signup so that you have some real information about the users this is very useful in preventing the fraud.

Change the sip port to any port other than 5060

Use sip port other than 5060 to prevent unauthorized entry ,brute force.

Block the asterisk manager port from outside and change the default password

Do not allow anyone to connect form outside of the machine to asterisk server.

Verify paypal payments with the user's paypal email.

I hope the steps above can help you securing your a2billing server and prevent any fraud and losses.If you want I can do the above for you for 500 USD. You can get back to me on vids.cs@gmail.com

Packet Sniffing in linux

noreply@blogger.com (Unknown) — Wed, 19 Mar 2014 17:33:00 +0000

#include stdio.h
#include stdlib.h
#include pcap.h
#include errno.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include ctype.h
#include string.h

void capture_packet(u_char *arg, const struct pcap_pkthdr* pkthdr, const u_char* packet)
{
    int i=0;
    static int count=0;
    printf("Packet Count: %d\n", ++count);
    printf("Recieved Packet Size: %d\n", pkthdr->len);
    printf("Payload:\n");
    for(i=0;ilen;i++) {
        if(isprint(packet[i]))
            printf("%c ",packet[i]);
        else
            printf(" . ",packet[i]);
        if((i%16==0 && i!=0) || i==pkthdr->len-1)
            printf("\n");
    }
    printf("\n\n");
}

int main(int argc, char **argv)
{
char dev[20];
char *net;
char *mask;
int ret;
pcap_t* descr;
char errbuf[PCAP_ERRBUF_SIZE];
bpf_u_int32 netp;
bpf_u_int32 maskp;
printf("Enter network device name--eg: eth0");
scanf("%s",dev);
printf("\n+-------------------------------------------+\n|\t DEV: %s\n",dev);
ret = pcap_lookupnet(dev,&netp,&maskp,errbuf);
if(ret == -1)
{
printf(" %s\n", errbuf);
exit(1);
}
addr.s_addr = netp;
net = inet_ntoa(addr);
if(net == NULL)
{
    perror("inet_ntoa");
    exit(1);
}
printf("|\t NET: %s\n",net);
addr.s_addr = maskp;
mask = inet_ntoa(addr);
if(mask == NULL)
{
    perror("inet_ntoa");
    exit(1);
}
printf("|\t MASK: %s\n+-------------------------------------------+",mask);
descr = pcap_open_live(argv[1], BUFSIZ, 1, -1, errbuf);
if(descr == NULL)
{
    printf("\npcap_open_live() error: %s\n", errbuf);
    exit(1);
}
printf("\nPROCESS ID: %d\n",getpid());
printf("Packet filter firewall process started on network device: %s\n", argv[1]);
pcap_loop(descr, -1, capture_packet, NULL);
return 0;
}

COMPILE:
# gcc filename.c -lpcap
# ./a.out

Linux Network Monitor example c program

noreply@blogger.com (Unknown) — Wed, 19 Mar 2014 17:25:00 +0000

#include stdio.h
#include stdlib.h
#include pcap.h
#include errno.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h
#include signal.h
#include ctype.h
#include string.h
#include unistd.h

typedef struct apppp
{
    char data[20];
    struct apppp *next;
} app;

void my_callback(u_char *arg, const struct pcap_pkthdr* pkthdr, const u_char* packet)
{
    int i=0;
    static int count=0;
    printf("Packet Count: %d\n", ++count);
    printf("Recieved Packet Size: %d\n", pkthdr->len);
    printf("Payload:\n");
    for(i=0;ilen;i++) {
        if(isprint(packet[i]))
            printf("%c ",packet[i]);
        else
            printf(" . ",packet[i]);
        if((i%16==0 && i!=0) || i==pkthdr->len-1)
            printf("\n");
    }

    printf("--------------------------------------------------------------------------------\n");
}

void fun(int signum)
{
printf("\nSignal: Monitoring process terminated...\n");
exit(0);
}

int main(int argc, char **argv)
{
char *dev;
char *net;
char *mask;
int ret;
pcap_t* descr;
char errbuf[PCAP_ERRBUF_SIZE];
bpf_u_int32 netp;
bpf_u_int32 maskp;
struct in_addr addr;
FILE *fp;
app *p,*head;
char ch;
int ii,jj;
if(argc != 3)
{
    printf("ERROR:\nSyntax: filename device policy-filename\n");
    exit(0);
}
printf("\n");
if(signal(SIGINT, fun) == NULL)
{
    printf("WARNING: (SIGINT) Signal Handling system call error.\nProgram continued without signal handler...\n");
//    exit(0);
}fp = fopen(argv[2],"a");
    if(fp == NULL)
    {
        printf("Error: Unable to open file\n");
        return 0;
    }
    ii = 0;
    jj = 1;
    p = (app*)malloc(sizeof(app));
    head = p;
    p->next = NULL;
    while(1)
    {
        ch = fgetc(fp);
        if(ch == EOF) break;
        else if(ch == (int)'\0') break;
        else if(ch == (int)'\n')
        {
            p->next = (app*)malloc(sizeof(app));
            p = p->next;
            p->next = NULL;
            ii = -1;
            jj++;
        }
        else if(isdigit(ch)) p->data[ii] = ch;
        else if(ch == (int)'.') p->data[ii] = ch;
        else
        {
            printf("Policy file error: Unexpected characher \"%c\" found at line: \n", ch, jj);
            printf("Process Terminating...!\n");
            return 0;
        }
        ii++;
        p->data[ii] = '\0';
    }
    fclose(fp);
    p = head;
    printf("\n+-------------------------------------------+");
    printf("\n|   Block network packet from IP:");
    printf("\n+-------------------------------------------+");
    while(head != NULL)
    {
        printf("\n|\t %s", head->data);
        head = head->next;
    }
printf("\n+-------------------------------------------+\n|\t DEV: %s\n",argv[1]);
ret = pcap_lookupnet(argv[1],&netp,&maskp,errbuf);
if(ret == -1)
{
   printf(" %s\n", errbuf);
   exit(1);
}
addr.s_addr = netp;
net = inet_ntoa(addr);
if(net == NULL)
{
    perror("inet_ntoa");
    exit(1);
}
printf("|\t NET: %s\n",net);
addr.s_addr = maskp;
mask = inet_ntoa(addr);
if(mask == NULL)
{
    perror("inet_ntoa");
    exit(1);
}
printf("|\t MASK: %s\n+-------------------------------------------+",mask);
descr = pcap_open_live(argv[1], BUFSIZ, 1, -1, errbuf);
if(descr == NULL)
{
    printf("\npcap_open_live() error: %s\n", errbuf);
    exit(1);
}
printf("\nPROCESS ID: %d\n",getpid());
printf("Packet Monitor process started on network device: %s\n", argv[1]);
pcap_loop(descr, -1, my_callback, NULL);
printf("\n\n\n------------packet capturing monitor completed------------\n\n");
return 0;
}

Get device configuration in linux using c program

noreply@blogger.com (Unknown) — Wed, 19 Mar 2014 17:19:00 +0000

#include stdio.h
#include stdlib.h
#include pcap.h
#include errno.h
#include sys/socket.h
#include netinet/in.h
#include arpa/inet.h

int main(int argc, char **argv)
{
char *net; /* dot notation of the network address */
char *mask;/* dot notation of the network mask    */
int ret;   /* return code */
char errbuf[PCAP_ERRBUF_SIZE];
bpf_u_int32 netp; /* ip          */
bpf_u_int32 maskp;/* subnet mask */
struct in_addr addr;

if (argc != 2) {   //check if command syntax is correct
{
     printf("please provide valid network card name");
     exit(1);
}
/* print out device name */
printf("DEV: %s\n",argv[1]);

/* ask pcap for the network address and mask of the device */
ret = pcap_lookupnet(argv[1],&netp,&maskp,errbuf);

if(ret == -1)
{
   printf("%s\n",errbuf);
   exit(1);
}

/* get the network address in a human readable form */
addr.s_addr = netp;
net = inet_ntoa(addr);

if(net == NULL)/* thanks Scott :-P */
{
    perror("inet_ntoa");
    exit(1);
}

printf("NET: %s\n",net);

/* do the same as above for the device's mask */
addr.s_addr = maskp;
mask = inet_ntoa(addr);

if(mask == NULL)
{
    perror("inet_ntoa");
    exit(1);
}

printf("MASK: %s\n",mask);

return 0;
}

COMPILE:
# gcc filename.c -lpcap -o pcap
# ./pcap lo

Drop packets using NetFilter in linux

noreply@blogger.com (Unknown) — Wed, 19 Mar 2014 17:10:00 +0000

/* Sample code to install a Netfilter hook function that will
* drop all incoming packets on an interface we specify */
#define __KERNEL__
#define MODULE
#include linux/module.h
#include linux/kernel.h
#include linux/netdevice.h
#include linux/netfilter.h
#include linux/netfilter_ipv4.h
/* This is the structure we shall use to register our function */
static struct nf_hook_ops nfho;

/* Name of the interface we want to drop packets from */
static char *drop_if = "lo";

/* This is the hook function itself */
unsigned int hook_func(unsigned int hooknum,
                         struct sk_buff **skb,
                         const struct net_device *in,
                         const struct net_device *out,
                         int (*okfn)(struct sk_buff *))
{
    if (strcmp(in->name, drop_if) == 0) {
        printk("Dropped packet on %s...\n", drop_if);
        return NF_DROP;
    } else {
        return NF_ACCEPT;
    }
}

/* Initialisation routine */
int init_module()
{
    /* Fill in our hook structure */
    nfho.hook     = hook_func;         /* Handler function */
    nfho.hooknum = NF_IP_PRE_ROUTING; /* First hook for IPv4 */
    nfho.pf       = PF_INET;
    nfho.priority = NF_IP_PRI_FIRST;   /* Make our function first */

    nf_register_hook(&nfho);

    return 0;
}

/* Cleanup routine */
void cleanup_module()
{
    nf_unregister_hook(&nfho);
}

/*this program is example kernel program and need to be registered. This service will be started at boot time.*/

AMD graphic code 43 error?

noreply@blogger.com (Unknown) — Wed, 19 Mar 2014 10:46:00 +0000

Nowdays the laptop doesnot take the drivers normally when we boot/format the computer with windows 7 or windows 8.AMD graphice code 43 is error is due to this problem.The driver is not installed properly or driver is out of date.You can download the driver from the different site but I suggest to download from the geinue sites like if you laptop is of Hp gp to hp.com and download the drivers.
After downloading the drivers
1st install intel driver and then install amd driver. Now restart your computer.

My WebRTC related papers from 2013

noreply@blogger.com (Unknown) — Sun, 16 Mar 2014 23:21:00 +0000

This post gives an overview of my past and ongoing research on web-based multimedia communication. I wrote four published co-authored research papers last year answering these questions - How does WebRTC interoperate with existing SIP/VoIP systems and how does SIP in JavaScript compare with other approaches? What challenges lie ahead of enterprises in adopting WebRTC and what can they do? How can developers take advantage of WebRTC and HTML5 in creating rich internet applications in the cloud? How does emerging HTML5 technology allow better enterprise collaboration using rich application mash-ups? Read on if one or more of these questions interest you...

A Case for SIP in JavaScript

WebRTC (Web Real Time Communications) promises easy interaction with others using just your web browser on a website. SIP (Session Initiation Protocol) is the backbone of Internet communications interconnecting many devices, servers and systems you use daily for your call. Connecting WebRTC with SIP/RTP raises more questions than what we already know, e.g., does interoperability really work? what changes do you need in the existing devices and systems? does the conversion happen at the server or in the browser? what are the trade-offs of doing the translation? what are the risks if you go full throttle with WebRTC in the browser? and many more. There is a need for a fair comparison to evaluate not only what is theoretically possible but also practically achievable with existing systems.

"This paper presents the challenges and compares the alternatives to interoperate between the Session Initiation Protocol (SIP)-based systems and the emerging standards for the Web Real-Time Communication (WebRTC). We argue for an end-point and web-focused architecture, and present both sides of the SIP in JavaScript approach. Until WebRTC has ubiquitous cross-browser availability, we suggest a fall back strategy for web developers — detect and use HTML5 if available, otherwise fall back to a browser plugin."

read >>

Taking on WebRTC in an enterprise

On one hand WebRTC enables the end-users to communicate with others directly from their browsers, on the other it opens ~~a can of worms~~ a door to many novel communicating applications that scares your enterprise IT guy. Existing enterprise policies and tools are designed to work with existing communication systems such as emails and VoIP, and employ bunch of edge devices such as firewalls, reverse proxies, email filters and SBCs (session border controllers) to protect the enterprise data and interaction from the outside world. Unfortunately, session-less WebRTC media flows and, more importantly, end-to-end encrypted data channels, pose the same threat to enterprise security that peer-to-peer applications did. The first reaction from your IT guy will likely be to block all such peer-to-peer flows in the firewall. There is a need to systematically understand the risk and propose potential solutions so that the pearls of WebRTC can co-exist with the chains-and-locks of enterprise security.

"WebRTC will have a major impact on enterprise communications, as well as consumer communications and their interactions with enterprises. This article illustrates and discusses a number of issues that are specific to WebRTC enterprise usage. Some of these relate to security: firewall traversal, access control, and peer-to-peer data flows. Others relate to compliance: recording, logging, and enforcing enterprise policies. Additional enterprise considerations relate to integration and interoperation with existing communication infrastructure and session-centric telephony systems."

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Building communicating web applications leveraging endpoints and cloud resource service

One problem with the growth of SIP was that there were not many applications that demonstrated its capabilities beyond replacing a telephone call. This resulted in telephony mindset dominating the evolution in both standards and deployments. At the core of it, WebRTC essentially does most of what SIP aims for - peer-to-peer media flows and control in the end-points. Unfortunately, telephony influence in existing SIP devices, servers and providers have hidden that benefit from the end-user. There is a need to avoid such dominating telephony influence on WebRTC by demonstrating how easy it is to build communicating web applications, without relying on existing (and expensive) VoIP infrastructure.

Secondly, the open web is threatened by closed social websites that tend to lock the user data in their ecosystem, and force the user to only use what they build, go where they exist and talk to who they allow. This developer focused research is an attempt to go against them, by showing a rich internet application architecture focused on application logic in the end-point and application mash-ups at the data-level. It shows my 15+ crucial web widgets written in few hundred lines of code each, covering wide rand of use cases from video click-to-call to automatic-call-distribution, call-queue and shared white-boards, and my web applications such as multiparty video collaboration, instant messaging/communicator, video presence and personal social wall, all written using HTML5 without depending on "the others" (imagine tune from lost played here) - the others are the existing SIP, XMPP or Flash Player based systems.

"We describe a resource-based architecture to quickly and easily build communicating web applications. Resources are structured and hierarchical data stored in the server but accessed by the endpoint via the application logic running in the browser. The architecture enables deployments that are fully cloud based, fully on-premise or hybrid of the two. Unlike a single web application controlling the user's social data, this model allows any application to access the authenticated user's resources promoting application mash-ups. For example, user contacts are created by one application but used by another based on the permission from the user instead of the first application."

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Private overlay of enterprise social data and interactions in the public web context

Continuing the previous research theme, this research focuses on enterprise collaboration and enterprise social interactions. The goal is to define a few architectural principles to facilitate rich user interactions, both real-time and offline in the form of digital trail, in an enterprise environment. In particular, my proof-of-concept project described in the paper shows how to do web annotations, virtual presence, co-browsing, click-to-call from corporate directory, and internal context sensitive personal wall. The basic idea is to separate the application logic from the user data, keep the user data protected within the enterprise network, use public web as a context for storing the user interactions and build a generic web application framework running the browser.

"We describe our project, living-content, that creates a private overlay of enterprise social data and interactions on public websites via a browser extension and HTML5. It enables starting collaboration from and storing private interactions in the context of web pages. It addresses issues such as lack of adoption, privacy concerns and fragmented collaboration seen in enterprise social networks. In a data-centric approach, we show application scenarios for virtual presence, web annotations, interactions and mash-ups such as showing a user's presence on linked-in pages or embedding a social wall in corporate directory without help from those websites. The project enables new group interactions not found in existing social networks."

read>>

Make USB bootable pendrive

noreply@blogger.com (Unknown) — Sun, 16 Mar 2014 17:41:00 +0000

If your system hardware doesn't include cd/dvd drive then you can also use usb pendrive to format and install new windows operating system. For linux operating system you can also use bootable pendrive but that is a bit different. Firstly, make sure that your computer supports usb bootable pendrive. If yes then open command prompt and type below commands in serial order.
1. diskpart
2. list disk
   (It will list all the drives of your system. See the pendrive's disk number)
3. select disk 1
   (Let "disk 1" is representing your pendrive)
4. clean
5. create partition primary
6. format quick fs=fat32
7. active
8. assign
9. exit
   (Also close all windows that are currently related to pendrive)
10. Now, copy whole windows 7 dvd setup files into pendrive as it is.
   (Dont copy it in any folder or zip. Copy setup files of windows directly in pendrive, and not in any folder on pendrive) (Dont copy other files in to pendrive, else it could show some error).

Now, your pendrive is ready to boot windows setup.

Reboot your computer and choose pendrive (name of bootable pendrive) to boot and then follow the steps. This process of installing windows using pendrive in very faster and time saving rather than installing via cd/dvd.

What is a protocol in computer system?

noreply@blogger.com (Unknown) — Sat, 15 Mar 2014 20:19:00 +0000

Protocol is the set of rules to do a particular thing. It is actually the mutual understanding between things/objects/devices so that they can communicate/interact with each other. So in computer network, protocols are set of rules to govern a particular task. Every work to be performed in computer system has particular protocol through which it could be made possible.
Eg:

FTP is file transfer protocol that supports file transfer from one system to another.
HTTP protocol is used to get hypertext and multimedia data.
RTSP (Real time streaming protocol) supports the online video transfer at the real time.
VoIP (voice over IP) used for real time audio data transfer.
TCP used to set up a reliable connection send packets between two systems.
UDP used to send packets in unreliable way.
MIME used for fetching multimedia data.
SMTP used for email sending.
POP used for receiving mails protocols.
ICMP used to get echo of packed node and trace route of packet.
NFS network file system protocol used for supporting file system over network.
LDAP (light weight directory access protocol) used for accessing directory in IBM systems.
Sliding window protocol: It is Datalink layer protocol used to overcome the problem of "FAST SENDER MACHINE AND SLOW RECEIVER MACHINE).
ARP (access recolution protocol) used to get MAC address of a particular IP adderss (network layer address to datalink layer address).

RARP is the reverse of ARP protocol.

Metaclass in OOPS

noreply@blogger.com (Unknown) — Sat, 15 Mar 2014 19:55:00 +0000

In object-oriented programming, a metaclass is a class whose instances are classes. Just as an ordinary class defines the behavior of certain objects, a metaclass defines the behavior of certain classes and their instances. Not all object-oriented programming languages support metaclasses. Among those that do, the extent to which metaclasses can override any given aspect of class behavior varies. Metaclasses can be implemented by having classes be first-class citizen, in which case a metaclass is simply class that constructs classes. Each language has its own metaobject protocol, a set of rules that govern how objects, classes, and metaclasses interact. In Java programming language, metaclass in base class of every class.

Priority Queue Implementation in C using Arrays

noreply@blogger.com (Unknown) — Thu, 13 Mar 2014 06:14:00 +0000

#include <stdio.h>

#include <conio.h>

#define size 5

int queue[5][2] = {0};

int top = -1;

int bottom;

void push(int value, int pr)

{

int i,j,k;

if(top < size-1)

{

if(queue[top][1] > pr)

{

for(i=0;i<top;i++)

{

if(queue[i][1] > pr)

{

break;

}

for(j=top;j>=i;j--)

{

queue[j+1][0] = queue[j][0];

queue[j+1][1] = queue[j][1];

}

top++;

queue[i][0] = value;

queue[i][1] = pr;

}

else

{

top++;

queue[top][0] = value;

queue[top][1] = pr;

}

else

{

printf("queue overflow \n");

}

void pop()

{

int i;

if(queue[0][0] == 0)

{

printf("\n The queue is empty \n");

}

else

{

printf("After , dequeue the following value is erased \n %d \n", queue[0][0]);

for(i=0;i<top;i++)

{

queue[i][0] = queue[i+1][0];

queue[i][1] = queue[i+1][1];

}

queue[top][0] = 0;

queue[top][1] = 0;

top--;

}

void display()

{ int i,j;

printf("Element\tPriority \n");

for(i=size - 1;i>=0;i--)

{

for(j=0;j<2;j++)

{

printf(" %d\t",queue[i][j]);

}

printf("\n");

}

int main()

{

int i,j, ch=0 ,value = 0,pr=0;

while(1)

{

printf("\n Please Enter the choice. \n");

printf("1 for Enqueue \n 2 for Dequeue \n 3 for display\n 5 for exit: \t \n");

scanf("%d",&ch);

switch(ch)

{

case 1:

printf("\n Please Enter the number to be inserted: \t ");

scanf("%d", &value);

printf("\n Please Enter the priority: \t ");

scanf("%d", &pr);

push(value,pr);

break;

case 2:

pop();

break;

case 3:

display();

break;

case 5:

exit(0);

default:

printf("You entered wrong choice\n");

}

Android gravity sensor application programming

noreply@blogger.com (Unknown) — Sat, 08 Mar 2014 19:03:00 +0000

public class gravity implements SensorEventListener{

        SensorManager sensormanager;
        Sensor sensor;
        public gravity()
        {
            sensormanager = (SensorManager)getSystemService(SENSOR_SERVICE);
            sensor = sensormanager.getDefaultSensor(Sensor.TYPE_GRAVITY);
        }

        @Override
        public void onAccuracyChanged(Sensor arg0, int arg1) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onSensorChanged(SensorEvent arg0) {
            // TODO Auto-generated method stub
            ttt.setText("X: "+String.valueOf(arg0.values[0])+" degree\nY: "+String.valueOf(arg0.values[1])+" degree\nZ: "+String.valueOf(arg0.values[2])+" degree");
        }

        public void resume()
        {
            sensormanager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_NORMAL);
        }

        public void pause()
        {
            sensormanager.unregisterListener(this);
        }
    }

Android GPS application programming

noreply@blogger.com (Unknown) — Sat, 08 Mar 2014 19:01:00 +0000

public class MainActivity extends Activity {

    Location p1=new Location("point a");
    Location p2=new Location("point b");
    double longitude,latitude;
    TextView speedview,xstart,ystart,distance,time;
    float speed,dist;
    LocationManager lm;
    Button b;
    int flag,flag1;
    int hour,min,sec;
    String location;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        speedview=(TextView)findViewById(R.id.speedview);
        xstart=(TextView)findViewById(R.id.slatitude);
        b=(Button)findViewById(R.id.button1);
        ystart=(TextView)findViewById(R.id.slongitude);
        distance=(TextView)findViewById(R.id.distance);
        time=(TextView)findViewById(R.id.time);
        Toast.makeText(getApplicationContext(), "Wait while device check your position.", Toast.LENGTH_LONG).show();
        flag = 0;
        flag1 = 0;
        hour = 0;
        min = 0;
        sec = 0;

        lm = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);

        lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new LocationListener() {

            @Override
            public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onProviderEnabled(String arg0) {
                // TODO Auto-generated method stub
                Log.d("Latitude","enable");

            }

            @Override
            public void onProviderDisabled(String arg0) {
                // TODO Auto-generated method stub
                Log.d("Latitude","disable");
            }

            @Override
            public void onLocationChanged(Location arg0) {
                // TODO Auto-generated method stub
                if(flag==0)
                {
                    p1.setLatitude(arg0.getLatitude());
                    p1.setLongitude(arg0.getLongitude());
                    flag=1;
                    dist=(float)0.0;
                }

                xstart.setText("Latitude: "+String.valueOf(latitude));
                ystart.setText("Longitude: "+String.valueOf(longitude));
                latitude=arg0.getLatitude();
                longitude=arg0.getLongitude();
                speed=arg0.getSpeed();
                speed=(float)((speed*10)/2.55);
                speedview.setText(String.valueOf(speed)+" kmph");
                p2.setLatitude(latitude);
                p2.setLongitude(longitude);
                dist=p2.distanceTo(p1);
                if(flag1==1)
                {
                    distance.setText(String.valueOf(dist)+" km");
                }
                Date date=new Date();

            }
        });

        b.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if(flag1==0)
                {
                    flag1=1;
                    flag=0;
                    b.setText("Stop");
                    //to start timer code

                }
                else
                {
                    flag1=0;
                    b.setText("Start");
                    //to reset timer code
                }
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

Android Shared Preferences (cache) example code

noreply@blogger.com (Unknown) — Sat, 08 Mar 2014 19:00:00 +0000

public class MainActivity extends Activity {

    Button show,save;
    EditText e;
    TextView t;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        show = (Button)findViewById(R.id.button2);
        save = (Button)findViewById(R.id.button1);
        t = (TextView)findViewById(R.id.textView1);
        e = (EditText)findViewById(R.id.editText1);
        final SharedPreferences s = getSharedPreferences("c", 0);
        final SharedPreferences.Editor se = this.getSharedPreferences("c", 0).edit();
        save.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                se.putString("c", e.getText().toString());
                se.commit();
            }
        });
        show.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                t.setText(s.getString("c", "null"));
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}

Computer Networking

HACK WPS WIFI EASILY USING DUMPPER

1.download dumpper.rar

2.install jumpstart its in the same rar

3.open dumpper4.click on wps5.click ontodas las redes6.click on escannear7.it will show the wifi that can be hack8.click on wifi you want to hack9.click oninciar jumpstart

INSTALL AVG INTERNET SECURITY FOR FREE

MODERN COMBAT 5 :BLACKOUT FREE DOWNLOAD (DATA+ APK)

Hot spot shield elite free download +crack (to change ip)

Hi fren, Here many of you are trying to change the ip address of your

now, heres the simple way to change the ip address. By using hotspot shield(hss).

This is the easy to to change the ip address just go to google search for hotspot sheild

and download it for free. You just need to install nothing more than that. :)

C program compiler c4droid free download

MX PLAYER PRO FREE DOWNLOAD

The Dark Knight Rises v1.1.3 Apk + SD Data (free download)/ HOW TO INSTALL

1) First install BATMAN.apk (don`t run)

2) Then copy data file com.gameloft.android.ANMP.GloftKRHM in sd card\android\obb Then play the game :)NEEDS TO RUN ONLINE 1STIf its say unfortunately the game has stopped the again install the .apk and run the gameTested in NOTE 2

BST implementation in C

free download internet download manger with crack. (Idm

Expert Systems

Sorted Linked List implementation in C

How to secure asterisk and a2billing

Packet Sniffing in linux

Linux Network Monitor example c program

Get device configuration in linux using c program

Drop packets using NetFilter in linux

AMD graphic code 43 error?

My WebRTC related papers from 2013

A Case for SIP in JavaScript

Taking on WebRTC in an enterprise

Building communicating web applications leveraging endpoints and cloud resource service

Private overlay of enterprise social data and interactions in the public web context

Make USB bootable pendrive

What is a protocol in computer system?

Metaclass in OOPS

Priority Queue Implementation in C using Arrays

Android gravity sensor application programming

Android GPS application programming

Android Shared Preferences (cache) example code

2) Then copy data file com.gameloft.android.ANMP.GloftKRHM in sd card\android\obb Then play the game :)NEEDS TO RUN ONLINE 1ST
If its say unfortunately the game has stopped the again install the .apk and run the gameTested in NOTE 2