How to disable Firewall or SELinux in CentOS 5

Disabling the Firewall and/or SELinux on CentOS 5 is fairly easy, just run the following command and you can make all the necessary changes!

/usr/bin/system-config-securitylevel-tui

Tags: centos, linux, server-administration, system administration

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Filed under: Uncategorized by — aaron @ 5:56 pm

CentOS 5 yum error: Error: None

On some new installs of CentOS we have been getting the following error while using yum:

[root@s yum]# yum upgrade
Error: None

To fix this phython sqlite and yum must be re-installed.

First remove phython sqlite and yum, then download and re-install them using the following:

rpm -ivh yum-metadata-parser-1.1.2-2.el5.x86_64.rpm
rpm -ivh python-sqlite-1.1.7-1.2.1.x86_64.rpm
rpm -ivh yum-3.2.8-9.el5.centos.1.noarch.rpm
rpm -ivh yum-updatesd-0.9-2.el5.noarch.rpm

Then execute:

yum clean all
yum upgrade

This should fix the issue.

Thanks Gopi for this article!

Tags: centos, linux, server-administration, yum

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Filed under: Uncategorized by — aaron @ 4:32 pm

See through Google’s Eye’s Like it was 2001!

This is a bit old news, however thought I would post it anyway!   Google has provided their oldest index to allow us to seach like it was 2001!

Link: http://www.google.com/search2001.html

The great thing is you can use the Arhive.org to see what the sites looked like back then as well.

Tags: random

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Filed under: Uncategorized by — aaron @ 11:20 pm

How to move a running process to the background Linux/UNIX

To move a running process to the background do the following:

CTRL + Z

bg

This is quite useful if you need to do something else via the commandline while you have already started running a process.

Tags: linux, server-administration

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Filed under: Uncategorized by — aaron @ 3:34 pm

How to install Webmin on Debian 3 or 4 using Debian (.deb) Packages

Pre-installation Requirements:

apt-get install wget perl libnet-ssleay-perl openssl libauthen-pam-perl libio-pty-perl libmd5-perl

Download the latest version of Webmin from the Webmin website: http://www.webmin.com/download.html

For Debian or other similar variants of Linux, use the .deb package.  The latest one at time of writing is: http://prdownloads.sourceforge.net/webadmin/webmin_1.430_all.deb

Install (running as root):

dpkg -i webmin_1.430_all.deb

Tags: control panels, linux, server-administration, webmin

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Filed under: Uncategorized by — aaron @ 3:10 am

Reset Default Lxadmin Password via commandline/backend

Sometimes when you intially setup Lxadmin, you can have problems resetting it from default.  To get around this can you can do the following:

1. Login via SSH to your VPS.

2. Run:

cd /usr/local/lxlabs/lxadmin/httpdocs

3. Then run:

/usr/bin/lphp.exe  ../bin/common/resetpassword.php master <your-new-password>

Tags: hypervm, linux, lxadmin

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Filed under: Uncategorized by — aaron @ 2:39 am

lxadmin Error: sh: vgdisplay: command not found

Lxadmin Error:

sh: vgdisplay: command not found

If you are receiving this, its probably due to the hostname being set to something which is causing a problem, so do the following to fix:

hostname temp.domain.com
cd /usr/local/lxlabs/lxadmin/httpdocs/
lphp.exe ../bin/update.php

Tags: hypervm, linux, lxadmin

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Filed under: Uncategorized by — aaron @ 2:07 am

How to install Webmin on Ubuntu 7 or 8 by using Ubuntu (.deb) Packages

Pre-installation Requirements:

Update your /etc/apt/sources.list file to include universe:

Old Config:

deb http://archive.ubuntu.com/ubuntu hardy main
deb http://security.ubuntu.com/ubuntu hardy-security main

New Config (with universe):

deb http://archive.ubuntu.com/ubuntu hardy main
deb http://security.ubuntu.com/ubuntu hardy-security main
deb http://archive.ubuntu.com/ubuntu hardy universe
deb http://security.ubuntu.com/ubuntu hardy-security universe

apt-get update

apt-get install wget perl libnet-ssleay-perl openssl libauthen-pam-perl libio-pty-perl libmd5-perl

Download the latest version of Webmin from the Webmin website: http://www.webmin.com/download.html

For Ubuntu or other similar variants of Linux, use the .deb package.  The latest one at time of writing is: http://prdownloads.sourceforge.net/webadmin/webmin_1.430_all.deb

Install (running as root):

dpkg -i webmin_1.430_all.deb

Tags: control panels, linux, server-administration, ubuntu

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Filed under: Uncategorized by — aaron @ 1:38 am

How to List all packages available to install from Ubuntu Repository

This is a command to list all packages available to install from the repositories you have configured in Ubuntu:

apt-cache pkgnames

Tags: linux, server-administration, ubuntu

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Filed under: Uncategorized by — aaron @ 12:40 am

How to List all packages available to install from Debian Repository

This is a command to list all packages available to install from the repositories you have configured in Debian:

apt-cache pkgnames

Tags: debian, linux, server-administration

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Filed under: Uncategorized by — aaron @ 12:38 am