Update Plesk Windows From Command Line

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

Single Window Mode With Sublime Text On OSX

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

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

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

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

Comment out the following line in /etc/bashrc

mesg y

IPv6 Supernetting Subnetting Ruby

#!/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

<?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

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

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