dragffy.com » Linux

Add Secondary IP Address to CentOS 5.5

Gabe — Tue, 08 Mar 2011 15:32:51 +0000

Create a new interface file with a colon and a number.
# cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:1
# vim /etc/sysconfig/network-scripts/ifcfg-eth0:1

DEVICE=eth0:1
BOOTPROTO=static
IPADDR=192.168.0.5
ONBOOT=yes

To activate it, just

# ifup eth0:1

SSH KeepAlive

Gabe — Wed, 09 Feb 2011 15:34:34 +0000

add the following to sshd_config

KeepAlive yes ClientAliveInterval 60

apache2: apr_sockaddr_info_get() failed

Gabe — Wed, 24 Nov 2010 15:28:55 +0000

Starting httpd: httpd: apr_sockaddr_info_get() failed for hostname.domain.com
httpd: Could not reliably determine the server’s fully qualified domain name, using 127.0.0.1 for ServerName

Fix with these commands :

# hostname HOSTNAME.DOMAIN.COM

Add in to /etc/hosts e.g. # vim /etc/hosts

# echo HOST.DOMAIN.com > /etc/hostname

# /bin/hostname -F /etc/hostname

# apache2ctl graceful

Easy way to install LAMP (DNS, samba, etc) under Maverick Meerkat Ubuntu 10.10

Gabe — Wed, 24 Nov 2010 14:21:14 +0000

Either:
$ sudo tasksel

or:
$ sudo tasksel install lamp-server

or:
$ sudo apt-get install php5 mysql-server apache2

Ubuntu perl: warning: Setting locale failed

Gabe — Wed, 24 Nov 2010 11:58:25 +0000

Run as root, or prefix with “sudo”:
# locale-gen en_GB.UTF-8 # dpkg-reconfigure locales

Effectively repair MySQL Tables

Gabe — Wed, 27 Jan 2010 14:23:44 +0000

$ cd /var/lib/mysql

find -type f -name '*.MYI' -exec myisamchk --silent --force --fast --update-state --key_buffer_size=64M --sort_buffer_size=64M --read_buffer_size=1M --write_buffer_size=1M {} \;

Access denied for user ‘debian-sys-maint’@'localhost’ (using password: YES)

Gabe — Tue, 26 Jan 2010 09:26:59 +0000

Find your debian-sys-maint password in /etc/mysql/debian.cnf.

GRANT ALL PRIVILEGES ON *.* TO 'debian-sys-maint'@'localhost' IDENTIFIED BY ' ' WITH GRANT OPTION;

Replace with your debian-sys-maint password.

Clicking on a GVFS link opens in Firefox

Gabe — Thu, 22 Oct 2009 16:52:30 +0000

For some reason servers that I connected to using FTP with gnome-vfs would open in Firefox. Odd really.

I fiddled about and eventually developed a filesystem level fix. Just go to the folder:
~/.gconf/desktop/gnome/url-handlers
And delete the ftp folder!

VirtualBox 3 Transparent Background on Ubuntu Jaunty

Gabe — Tue, 30 Jun 2009 15:53:28 +0000

I upgraded to VirtualBox 3 and then my windows guest went wrong.

First of all, you have make sure the latest version of compiz installed.

Go to CompizConfigs Settings Manager and look for “Windows Rules” under Windows Management category. Enable “Windows Rules” and go to “No ARGB visuals” use Window Class, click Grab and then click in virtualbox window.

Using APG to generate secure, pronuncable passwords.

Gabe — Fri, 12 Jun 2009 15:28:20 +0000

The following command will generate several passwords with the following properties:

Length of 10 characters
Contain a mixture of upper and lowercase characters
Contain at least 1 number
Completely random most likely not in the dictionary (expect by random luck)
Pronounceable

This makes these passwords easier to remember but very difficult to brute force. They are ideal as passwords for logging in to machines, servers, routers, etc.

$ apg -m 10 -x 10 -a 0 -M NCL -t