tag:blogger.com,1999:blog-1987093267930390979Fri, 09 Dec 2011 06:11:04 +0000UNIXWorld NewsGamesJust for LaughsVoiceWorld of WarcraftTips n TricksRan OnlineTechBlog MoneyMisccabalYouTubeRohanPerfect WorldMine :)Monster Hunter Portable 2GTech notes,game notes, unix notes and the likes.http://www.i-justblog.com/noreply@blogger.com (Rhycel)Blogger388125i-justbloghttp://feedburner.google.comtag:blogger.com,1999:blog-1987093267930390979.post-4007220593650718797Fri, 09 Dec 2011 01:46:00 +00002011-12-09T09:48:29.002+08:00VoiceThanks to http://blog.bradpeczka.com/ for this nice post ! Let's ensure the proper host and domain names are set Router(config)#hostname VoiceGateway VoiceGateway(config)#ip domain-name mydomain.com ! Enable MGCP VoiceGateway(config)#mgcp ! Specify the IP Address of our Primary Subscriber VoiceGateway(config)#mgcp call-agent 10.10.10.10 VoiceGateway(config)#ccm-manager mgcp ! Specify the IP http://www.i-justblog.com/2011/12/mgcp-vgw-configuration-in-cucm.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-1426244235935781180Wed, 25 Nov 2009 21:12:00 +00002009-11-26T05:12:13.523+08:00UNIXHere's a procedure in makig a Solaris jumpstart server. # mkdir /jumpstart/image # mkdir /jumpstart/config # mkdir /jumpstart/share # lofiadm -a /var/tmp/Solaris10_u5_1108.iso /dev/lofi/1 # lofiadm /dev/lofi/1 /var/tmp/Solaris10_u5_1108.iso # svcadm disable volfs # mkdir -p /cdrom/cdrom0 # mount -F hsfs -o ro /dev/lofi/1 /cdrom/cdrom0 # cd /cdrom/cdrom0/Solaris_10/http://www.i-justblog.com/2009/11/solaris-jumpstart-howto.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-8213907708194593085Thu, 12 Nov 2009 07:14:00 +00002009-11-12T15:14:07.570+08:00UNIXSun init States Solaris init states refer to the level of services provided by the system. The exact services and processes run at each init level are determined by the scripts in the /etc/rc#.d directories. The default service levels for each init state are listed below: * 0: The system is at the PROM monitor (ok>) or security monitor (>) prompt. It is safe to shut down the system when it http://www.i-justblog.com/2009/11/sun-init-states.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-6543517840303679368Tue, 27 Oct 2009 09:10:00 +00002009-10-27T17:10:48.628+08:00UNIXCreate simple striped pool: zpool create [pool_name] [device] [device] ... zpool create datapool c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0 Create mirrored pool: zpool create [pool_name] mirror [device] [device] ... zpool create datapool mirror c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0 Create Raid-Z pool: zpool create [pool_namehttp://www.i-justblog.com/2009/10/zfs-cheat-sheet.htmlnoreply@blogger.com (Rhycel)2tag:blogger.com,1999:blog-1987093267930390979.post-5312035242426366750Mon, 28 Sep 2009 23:33:00 +00002009-09-29T07:37:27.661+08:00UNIXThis one is quite old but still handy. For those of still using sendmail that ever felt the need of flushing the sendmail queue then this post is for you.If you're worried about sendmail pending mail flush do the following two things:1) manually method –> delete /var/spool/mail/*.* files in this dir –> delete /var/mqueue/*.* filesthen check if all mail gone using mailq command. all mail will be http://www.i-justblog.com/2009/09/clearing-sendmail-queue.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-767762133154442365Tue, 08 Sep 2009 01:40:00 +00002009-09-08T09:41:52.092+08:00UNIXwe can use the Loopback File driver to mount an ISO image without having to write the ISO image onto a CD or DVD.Following procedure should help you mount an ISO image in Sun SolarisAttach a Block Device sunsolaris# lofiadm -a /export/software/iso_image.iso /dev/lofi/1Mount the ISO Image block device sunsolaris# mount -F hsfs -o ro /dev/lofi/1 /mntWhere /mnt is the mount point.This should http://www.i-justblog.com/2009/09/how-to-mounting-iso-image-in-solaris.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-4938571089617561696Thu, 03 Sep 2009 01:49:00 +00002009-09-08T09:54:21.659+08:00UNIXP Multipathing (IPMP) in Sun Solaris enables the load balancing capabilities and resilience for Network connections with multple Network Interface Cards (NIC).Discussed here is about providing resilience for network connections with multiple NICs on the system. Now, we take it to the next step and make the network connections not only resilient but also load balance the network connections such http://www.i-justblog.com/2009/09/how-to-ipmp-load-balancing-resilience.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-1639699672429550408Fri, 21 Aug 2009 01:27:00 +00002009-09-08T09:30:08.720+08:00UNIXWhenever you modify your crontabe file, the error “Your “crontab” on server unexpected end of line. This entry has been ignored” is sent to the users email. This happens if there is a blank line in your crontab file.For example, in the following crontab file there is a blank line between the last two cron jobs. root@solaris# crontab -l # The root crontab should be used to perform accountinghttp://www.i-justblog.com/2009/08/crontab-unexpected-end-of-line.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-441117266013495678Thu, 20 Aug 2009 01:18:00 +00002009-09-08T09:21:00.983+08:00UNIXFirst off, what is WWN anyway?World Wide Name (WWN) are unique 8 byte (64-bit) identifiers in SCSI or fibre channel similar to that of MAC Addresses on a Network Interface Card (NIC).Talking about the WWN names, there are alsoWorld Wide port Name (WWpN), a WWN assigned to a port on a Fabric which is what you would be looking for most of the time.World Wide node Name (WWnN), a WWN assigned to a http://www.i-justblog.com/2009/08/find-wwn-world-wide-name-in-solaris.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-6281617139843090476Wed, 19 Aug 2009 08:37:00 +00002009-08-19T16:44:44.281+08:00UNIXToday we will look at backup and restore of a ZFS root pool using native ZFS tools.The command “ufsdump” does not work on a ZFS file system. This should not surprise anybody.“flashbackup” will supposedly work if you have all the right patches. I recommend avoiding it until Solaris 10 update 8 is released.The command “zfs send” is used to create backup images.The command “zfs receive” is used to http://www.i-justblog.com/2009/08/zfs-bootroot-backup-and-restore_19.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-7164718551723060250Tue, 18 Aug 2009 09:18:00 +00002009-08-18T19:18:34.300+08:00TechYes, you read it right. There's a new video site catered for our little ones and maybe a bunch of us :). First there was Kidzui, the company behind the child-safe web browser of the same name anad now they did it again with its online video experience with ZuiTube, a kid-friendly video destination site.The main tag lines for ZuiTube are "Play, Laugh, Learn and Share". They boasts of having the http://www.i-justblog.com/2009/08/zuitube-youtube-for-kids.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-7763972203950753852Thu, 13 Aug 2009 11:50:00 +00002009-08-13T19:56:03.318+08:00UNIXTips n TricksTechOpenSSH is a FREE version of the SSH connectivity tools that technical users of the Internet rely on. Users of telnet, rlogin, and ftp may not realize that their password is transmitted across the Internet unencrypted, but it is. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks. Additionally, OpenSSH provides securehttp://www.i-justblog.com/2009/08/openssh-server-best-security-practices.htmlnoreply@blogger.com (Rhycel)1tag:blogger.com,1999:blog-1987093267930390979.post-3490104547041621276Thu, 06 Aug 2009 12:14:00 +00002009-08-06T20:25:18.085+08:00UNIXTips n TricksIf you have been an system administrator for Solaris for sometime you should be familiar with such processes. Basically a defunct or much more known as a zombie process is a process that has completed execution but still has an entry in the process table, this entry being still needed to allow the process that started the zombie process to read its exit status. The term zombie process derives http://www.i-justblog.com/2009/08/how-to-kill-defunct-processes.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-8506615974419085715Fri, 31 Jul 2009 16:00:00 +00002009-08-01T16:08:53.957+08:00UNIXMost of us are familiar with SVM (a.k.a. Solaris Volume Manager, Disksuite, Onlne Disksuite, ODS, Solstice Disksuite, SDS, etc)Under SVM we build "metadevices" from one or more disks. We can then mirror equal sized metadevices to create a "metamirror".In this example we have two 30GB metadevices, one happens to be a concatenation of dissimilar disks, the other is a striped over equal sized http://www.i-justblog.com/2009/08/zfs-tip-comparison-of-svm-mirroring-and.htmlnoreply@blogger.com (Rhycel)1tag:blogger.com,1999:blog-1987093267930390979.post-676144299443240198Thu, 30 Jul 2009 23:12:00 +00002009-07-31T07:12:00.562+08:00UNIXAny of you who have looked at the zfs(1M) man page will have come across the term "dataset".A dataset can be: a) a file system b) a volume c) a snapshotEvery time we create a ZFS file system we are actually creating a dataset with a setting of "type=filesystem".Every pool starts out with a single dataset with a name that is the same as the pool name.E.g. Whenhttp://www.i-justblog.com/2009/07/zfs-datasets-and-zfs-list.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-4228896515416036331Wed, 29 Jul 2009 23:11:00 +00002009-07-30T07:20:00.374+08:00UNIXFor those who asked, I will convert these tips to html and post on termite. If I can get this done today I will provide a URL tomorrow.For those who did not try last week's exercises, I am afraid you will not be eligible for certificates, plaques, trophies or awards.But the good news is that it is not too late to catch up. If you cut and paste, each exercise should take roughly two http://www.i-justblog.com/2009/07/zfs-tip-zpool-list-zpool-status-zpool.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-8589718668089911765Wed, 29 Jul 2009 00:44:00 +00002009-07-30T07:09:22.763+08:00UNIXPowering off individual domains 1. Connect to the correct domain 1. Login to ssp as ssp and enter ${domain_name} at the Please enter SUNW_HOSTNAME: prompt. 2. If already logged into the ssp, enter domain_switch ${domain_name} in a command window. 2. ID proper domain boards by executing domain_status and noting the board numbers under the heading SYSBDS. ${SSP}:${Domain}% http://www.i-justblog.com/2009/07/e10k-powering-onoff-procedures.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-8567750947860725086Mon, 27 Jul 2009 23:11:00 +00002009-07-28T08:44:29.736+08:00UNIXToday we are going to move a ZFS pool from one server to another. There are several ways we could execute this exercise:a) we could create a pool on SCSI or SAS drives and physically move the drives from one server to anotherb) we could create a pool on SAN disk and then ask the Storage team to rezone the disks to another server.c) we could create a pool on a bunch of memory sticks and move the http://www.i-justblog.com/2009/07/zfs-tip-moving-pool-to-different-server.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-1963015407700164502Sun, 26 Jul 2009 23:09:00 +00002009-07-28T08:41:49.678+08:00UNIXToday we will look at spanning a pool over multiple disks (or for demo purposes: multiple 64MB files).The basic building block of a ZFS pool is called a "vdev" (a.k.a. "virtual device")A vdev can be one of:• a single "block device" or a "regular file" (this is what we have used so far) • a set of mirrored "block devices" and/or "regular files"• a "raidz" group of "blockhttp://www.i-justblog.com/2009/07/zfs-tip-multiple-vdevs-in-pool.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-6908269627260309105Sat, 25 Jul 2009 23:08:00 +00002009-07-28T08:38:38.629+08:00UNIXAll of us have experienced the following scenario.Developers ask for two file systems with specific sizes:e.g./aaa 1GB/bbb 5GBLet’s assume that we only have 6GB available and we create file systems as requested.A few days later /aaa is full and /bbb contains almost nothing. The developers ask for more space in /aaa.Do you purchase new disk?Do you backup, resize, and restore?Or if you are http://www.i-justblog.com/2009/07/creating-multiple-zfs-file-systems-in.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-5665169328823021241Fri, 24 Jul 2009 23:06:00 +00002009-07-28T08:35:08.026+08:00UNIXZFS was introduced in Solaris 10 06/06 (update2). No special license or software is required to use it. ZFS provides both "volume management" and a "file system" so it can be used in place of VXVM/VXFS and SVM/UFSZFS file systems are contained inside ZFS pools.So… if you want to create a ZFS file system you first need to create a ZFS pool.A ZFS pool is usually built top of one or more block http://www.i-justblog.com/2009/07/creating-simple-zfs-pool-and-zfs-file.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-4873868653283341769Thu, 23 Jul 2009 23:04:00 +00002009-07-24T09:22:54.888+08:00UNIXToday's ZFS tip is dedicated to anybody that has experienced corruption as a result of loading Solaris 10 patches. Using ZFS cloning, it is possible to create bootable clones of / and /var. A clone takes a few seconds to create, but could save hours or days if a patch installation does not go as planned.Patching can be done on the clone or the original.If the clone is corrupted, the rollback pathhttp://www.i-justblog.com/2009/07/zfs-bootroot-bring-on-clones.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-8647409790357517430Thu, 23 Jul 2009 06:59:00 +00002009-07-25T15:07:24.566+08:00World NewsESPN reporter Erin Andrews was secretly videotaped in the nude while she was alone in a hotel room and the video was posted on the Internet, her lawyer and the network said.The blurry five-minute video shows a nude blonde woman standing in front of a hotel room mirror. It’s unknown when or where it was shot.Andrews’ lawyer, Marshall Grossman, says the 31-year-old reporter plans to seek criminal http://www.i-justblog.com/2009/07/erin-andrews-secretly-videotaped-nude.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-7013227718194304825Wed, 22 Jul 2009 23:02:00 +00002009-07-24T07:29:13.941+08:00UNIXToday we will see how mirroring can be used migrate an existing ZFS root pool to a new pair of disks.This technique may be used to upgrade to larger drives. Let's assume we have a ZFS root pool mirrored between c0t0d0 and c0t1d0.We will go through the simple procedure of migrating to a pair new disks (c0t2d0 and c0t3d0) First, verify the status of the pool.# zpool status rpool pool: rpoolstate: http://www.i-justblog.com/2009/07/zfs-tip-14-zfs-bootroot-mirroring.htmlnoreply@blogger.com (Rhycel)0tag:blogger.com,1999:blog-1987093267930390979.post-2166794699948229887Mon, 20 Jul 2009 23:01:00 +00002009-07-24T09:22:07.505+08:00UNIXI think on the whole, you will find that ZFS booting is very simple. It should make your lives easier.Also, I believe that our goal of implementing SAN booting as a standard will be much easier to achieve if we first adopt ZFS root file systems as a prerequisite standard.Here are the basic rules, requirements, and recommendations around ZFS booting:• ZFS boot is supported with Solaris 10 10/08 (http://www.i-justblog.com/2009/07/zfs-tip-13-zfs-bootroot-intro.htmlnoreply@blogger.com (Rhycel)0