netcat – a handy port scan and more
Here’s a quick and easy way to check if a server port is open to connections.. nc -zv somehost 22 Connection to somehost 22 port [tcp/ssh] succeeded! To check a range of ports you...
SysOps Blog
How to clone a mysql database
Here’s an easy way to copy or clone a database either on the same server or to a remote server and at the same time search/replace some data in the tables if needed.. All...
Run (multiple) commands on remote servers via ssh
Here’s a quick way to login to servers to run some commands which is particularly handy when you have to do it on many servers.. ssh user@server ‘command1;command2;’ Or to execute a remote command...
Free hosting for your site in the cloud
Thinking of getting hosting or a vps server for your web site, application or blog? Well now you can get it FREE for a whole year! Not only can you have free hosting, you...
How to remove ^M characters from a file
Sometimes you come across a file, maybe a config file for some application you have installed, that has a load of ^M chars at the end of each line.. perhaps because the file at one...
Easy install Subversion 1.6 on Centos 5
The version of subversion included in the default centos yum repos is a little old so to install the latest and greatest, this is all you need to do.. First install the rpmforge repo...
blank php pages – mystified?
A common problem with php applications is the inscrutable blank page. No matter what you do, nothing shows on the page, nothing shows in the apache error logs, nothing in the syslog.. you try...
Installing BF1942 server on linux
Its an old one but good, here’s how to install Battlefield 1942 on a linux server.. First you have to download the relevant files which is easier said than done since many of the...
Can’t verify SSL peers without knowning which Certificate Authorities to trust
Yes that does say “knowning” but its not my typo its the actual error message displayed! So anyway, you were happily going about your business when suddenly without any warning one of your scripts...
Secure your web browsing with socks
Create an ssh connection to a server somewhere and proxy your web browsing over that secure connection.. On your pc or netbook or whatever you use for browsing, run this in a terminal.. ssh...