Shifted Bytes

Chromecast Multicast Between SSID Subnet VLAN On Fortinet Fortigate

2018-05-13T22:05:00.000-04:00

Enable Multicast Policy:
System -> Feature Visibility -> Additional Features > Multicast Policy -> On

Configure Multicast Policy:
Policy & Objects -> Multicast Policy

You'll need to create a policy going both ways between the desired networks and ensure that SNAT is enabled as well.

You may also need to disable multicast ttl changes via the CLI:

config system settings
set multicast-ttl-notchange enable
end

FortiWifi, 60D, FortiOS 6

Using ZSH ZMV to Force Add Leading Zeros

2018-02-22T09:50:00.001-05:00

Given a list of episodes that are named with single digits, but you'd like leading zeros:

S1E1.avi
S1E2.avi
S1E3.avi
S1E4.avi

zmv 'S([0-9])E([0-9]).(*)' 'S${(l:2::0:)1}E${(l:2::0:)2}.$3'

They'd now be renamed as follows:

S01E01.avi
S01E02.avi
S01E03.avi
S01E04.avi

Using ZSH ZMV to Rename Split an Episode to Two Episodes

2018-02-22T09:45:00.001-05:00

Given a list of episodes that are named to be one, but actually need to span two episodes:

S01E01.avi
S01E02.avi
S01E03.avi
S01E04.avi

zmv 'S([0-9][0-9])E([0-9][0-9]).(*)' 'S$1E${(l:2::0:)$((($2 * 2) - 1))}-E${(l:2::0:)$(($2 * 2))}.$3'

They'd now be renamed as follows:

S01E01-E02.avi
S01E03-E04.avi
S01E05-E06.avi
S01E07-E08.avi

This will also force leading zeros on S and E should they originally be single digits.

Outgoing Email Counts For DirectAdmin Users

2016-01-26T13:08:00.001-05:00

Replace $user with the system user and it will return a count of outgoing mails, per-user for the current day ($user and $user.bytes in this directory reset at midnight)

cat /etc/virtual/usage/$user.bytes | grep outgoing | awk -F= '{print $4}' | awk -F\& '{print $1}' | sort | uniq -c | sort -n

Find Files Sending SPAM On cPanel Exim Server

2016-01-26T13:05:00.001-05:00

This will check your exim_mainlog and dump the paths from which mail has been sent along with the number. Check the listed directory for malware, shells, etc:

grep cwd /var/log/exim_mainlog | grep -v /var/spool | awk -F"cwd=" '{print $2}' | awk '{print $1}' | sort | uniq -c | sort -n

Find Files Sending SPAM On DirectAdmin Exim Server

2016-01-26T13:05:00.000-05:00

This will check your exim_mainlog and dump the paths from which mail has been sent along with the number. Check the listed directory for malware, shells, etc:

grep cwd /var/log/exim/mainlog | grep -v /var/spool | awk -F"cwd=" '{print $2}' | awk '{print $1}' | sort | uniq -c | sort -n

Using ZSH ZMV To Mass Rename Files Episodes

2015-11-23T14:52:00.001-05:00

This presumes you are in the show folder looking at all the season folders AND the shows have the following format:
### - Episode Title.mkv

zmv 'Season (*)/([0-9])(*) - (*).mkv' 'Season $1/{showtitle} - S0$2E$3 - $4.mkv'

This should leave you with:

Showtitle - S01E01 - Episode Title.mkv

...and so forth.

If you are unsure, add the -n flag to zmv and it will present you the changes versus simply making them.

Note: Replace {$showtitle} with the title of your show. Nested directories with zmv gave me trouble so consider this the one bit of lifting required to save you a bunch of time.

Find List What Programs, Services, Daemons, Applications Are Using SWAP Memory In Linux

2015-10-02T20:23:00.002-04:00

for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less

Symlink ClamAV Binaries On A Linux cPanel Server

2015-07-21T15:26:00.002-04:00

ln -s /usr/local/cpanel/3rdparty/bin/freshclam /usr/local/bin/freshclam
ln -s /usr/local/cpanel/3rdparty/bin/clamscan /usr/local/bin/clamscan
ln -s /usr/local/cpanel/3rdparty/bin/clamd /usr/local/bin/clamd
ln -s /usr/local/cpanel/3rdparty/bin/clamav-config /usr/local/bin/clamav-config

Install ClamAV From The Command Line On A cPanel Server

2015-07-21T15:06:00.002-04:00

Pretty simple task here and makes installing ClamAV easier shot you not have the root password for the customers installation:

/scripts/update_local_rpm_versions --edit target_settings.clamav installed
/scripts/check_cpanel_rpms --fix --targets=clamav

Update Plesk Windows From Command Line

2015-05-13T21:23:00.004-04:00

"%plesk_bin%"\ai.exe --console

Single Window Mode With Sublime Text On OSX

2015-05-06T11:19:00.003-04:00

In OSX, editing files from finder or other applications can cause multiple instances to spawn. If you prefer everything to remain tabbed in a single window, do the following.

Open: Menu -> Preferences -> Settings - User

...and add the following, then restart the app.

{
    "open_files_in_new_window": false
}

If you have existing settings within the brackets, simply add that line (check your end of line commas for proper formatting!)

Recursively Find All Files With Only One Line Of Text On Linux

2015-04-13T09:51:00.004-04:00

A nice one-liner for finding files that only contain a single line of text which is often the case with Wordpress exploits.

find . -type f -print0 | xargs -0 wc -l | awk '$1==1{print $2}'

...an alternate version:

find . -type f -exec sh -c '[ 1 -eq $(wc -l {}|cut -d" " -f1) ] && echo {}' \;

Maximum Cache TTL Microsoft DNS Server MSDNS

2014-12-30T10:35:00.000-05:00

Open up regedit and navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters

Create a new DWORD "MaxCacheTtl" with a DECIMAL setting of 300 (for 300 seconds)

Then restart the DNS service (not required)

Negative Caching Microsoft DNS Server MSDNS

2014-12-30T10:32:00.002-05:00

Open up regedit and navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNSCache\Parameters

Create a new DWORD "NegativeCacheTime" with a DECIMAL setting of 30 (for 30 seconds)

Then restart the DNS service

Prevent Disable Silence stdin: is not a tty CentOS SSH SCP

2014-12-24T10:57:00.001-05:00

Comment out the following line in /etc/bashrc

mesg y

IPv6 Supernetting Subnetting Ruby

2014-11-13T12:33:00.002-05:00

#!/usr/local/bin/ruby -w
require 'ipaddr' 

# /32 CIDR -> /40's (LONG)
(0..255).each { |x|  puts IPAddr.new("1234:5678:#{sprintf("%02x",x)}00::0").to_i }

# /32 CIDR -> /48's (LONG)
(0..255).each { |x|  puts IPAddr.new("1234:5678:00#{sprintf("%02x",x)}::0").to_i }

IPv6 To PTR RDNS PHP

2014-11-13T12:31:00.002-05:00

<?php
$addr = inet_pton($ip);
$unpack = unpack('H*hex', $addr);
$hex = $unpack['hex'];
$arpa = implode('.', array_reverse(str_split($hex))) . '.ip6.arpa';
?>

Kill All Processes In Linux Via Search GREP

2014-09-24T12:55:00.001-04:00

Sometimes killall -9 simply doesn't work with all processes and as a result you are left searching/GREPing for process names to kill them off.

This Simplifies this task by killing all processes that are the result of that search:

kill -9 `ps -ef | grep processname | grep -v grep | awk '{print $2}'`

Change Clock Date Time Sync On Xen Linux VPS

2014-09-08T14:07:00.000-04:00

Set the following in sysctl.conf on your VPS. This will allow your VPS to have a clock that is not forcibly synced with the host node.

xen.independent_wallclock = 1

How To Enable Disk Caching LSI/MegaRaid/PERC RAID Using MegaCli

2014-09-04T09:50:00.003-04:00

MegaCli -LDSetProp -Cached -LAll -aAll
MegaCli -LDGetProp -DskCache -LAll -aALL
MegaCli -LDSetProp EnDskCache -LAll -aAll

How To Disable LSI/MegaRaid/PERC RAID Alarm Using MegaCli

2014-09-04T09:48:00.005-04:00

MegaCli -AdpSetProp AlarmDsbl –aall

How To Silence LSI/MegaRaid/PERC RAID Alarm Using MegaCli

2014-09-04T09:48:00.001-04:00

MegaCli -AdpSetProp AlarmSilence -aall

Cannot Sync Subscription To Service Plan In Plesk

2014-07-08T16:03:00.001-04:00

This could be caused by a myriad of issues however as of version 12 there is a limit of 50 subscriptions per service plan. If you have more than 50, it will not sync.

There is a bug report for this under "PPPM-1379".

The solution to the problem is to simply not use Plesk.

How To Fix Permissions On Home Directory

2014-07-02T11:07:00.002-04:00

This will ensure the user and group match the username in /home (non-recursively)

for i in `ls`; do { chown $i:$i $i; }; done;