exim: remove mails in queue from a particular sender.

Faheem    Home, Linux     cpanel delete mail queue, cpanel delete mails from a sender. delete mails to a sender, delete mails of a particular user, exim delete sender, exim queue management

“spams”, its one of the major issue that a sys admin has to deal with throughout his job.  First you need to find the user who is generating it. You can get it from the mail headers.  Once you find the user, disable the script that was responsible for spams, but it may have already kept thousands(may be lacks) of mails in the exim queue waiting for its chance to get delivered.  To delete these mails one by one is impossible.  In a cPanel server having exim mail,  you can use the following command to delete mails in the current queue generated by that particular user only.

SSH into the server
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OpenVZ network down SIOCADDRT: Network is unreachable

Faheem    Home     openvz network down, SIOCADDRT: Network is unreachable, vps not pinging

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How to configure NAT with iptables on a VPS.

Faheem    Home, Linux     enable NAT for iptables, enable NAT on vps, iptables NAT, NAT for iptables, vz NAT

NAT ( network-address-translation ) with iptables  helps us in how to select the packets we want to mangle. We can easily configure NAT on a OpenVZ VPS by following the below steps.

Lets first consider a VPS in which NAT is not enabled. Trying to POSTROUTE from VPS throws you errors.

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How to disable gzip output on lightspeed server accounts

Faheem    Home, Linux     disable gzip output, lightspeed disable gzip

You can use .htaccess to disable gzip output if your website is running under a lightspeed server.

Open .htacess file and append following lines.

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Find Linux OS is 32 or 64bit.

Faheem    Home, Linux     23bit or 64bit, linux 32 or 64bit., linux arcticture

There are several situations where you need to confirm whether your Linux OS installed  is 32bit or 64bit. People normally use uname -a to find it. But the following command will tell you exactly the machine   architecture.

getconf LONG_BIT

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songbird! iTunes for Ubuntu

Faheem    Home, Linux     Songbird, Songbird installation, songbird installation on 9.10

Songbird is a opensource music player that utilizes the cross platform frameworks and will runs in Linux, Apple, Solaris & Windows.

You can get it downloaded for free from here

Linux System Requirements : read more

How to Hide Text in Notepad !!

Nikhil    Home, Tips & Tricks, Windows     hidden notepad hack, hiding files, hiding files in XP, notepad hack, Notepad Tricks

Well who knew we could hide files with notepad?  Often you do all the coding for webpages in notepad and you gotta keep some of those hidden. What you do is look for a utility to hide your text. You simply don’t need it. There’s an easy hack to hide the notepad files. Let’s see how?

Before I begin let me tell you the text files you create with this hack won’t show up even with Windows or DOS whatever be the file settings. These files will only be accessible if you know the exact file name used while creating the file. Let’s begin with the steps,

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How to transfer a cPanel account to DirectAdmin.

Faheem    Home, Linux, Tips & Tricks     cPanel, cPanel to directadmin, directadmin, tool to convert backup

The file structure and back-ups for both control panels are entirely different and its quite difficult to restore the files transfered from one to another control panel manually. There is a script available which can convert a cPanel back-up to the format that of a DirectAdmin. The convert process is quite simple.

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System User Account in Windows XP !!

Nikhil    Home, Tips & Tricks, Windows     hidden xp tricks, logging in as the system user, secret user in xp, system user account in windows xp, system user windows, system user xp, user system, xp super secret, xp system user

If you think Administrator has the largest privileges onto the computer, then you are wrong. There is a user who is named SYSTEM. SYSTEM has full control of the operating system and it’s kernel. If you open windows task manager (press ctrl+alt and delete) you will see that System User controls several processes. These processes cannot be closed by Administrator. In this tutorial we will see how to trick Windows into running our desktop as System. So we’ll get a much greater privileges over computer.

The System User controls several processes

Configure Windows XP to Automatically Login!

Nikhil    Home, Tips & Tricks, Windows     automatic logon xp, xp tips

Click Start, Run and type CONTROL USERPASSWORDS2, and click Ok. Select the user account from the list (the account to which you want to automatically logon). Uncheck Users must enter a user name and password to use this computer option, and click Ok. Type the user account password and complete the process.

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