On the master server install bind server and bind utilities: Once bind has been installed, you need to setup the zones you will be hosting. In this example, domain.com is your domain name, 60.60.20.15 is the IP address or your slave server, and 50.50.20.15 is the IP address of your…
Below are a list of useful commands for managing a postfix mail server: mailq – Use to list items in your mails queues postcat -q MESSAGE_ID – Used to read messages that are in your postfix queue postsuper -d ALL – Delete all queued messages postsuper -d ALL deferred – Delete all messages in…
To install wget on Mac OS X, you will first need to install a C compiler. The easiest way to do this is to install XCode Command Line Tools. This can be downloaded from Apple – https://developer.apple.com/downloads/index.action One installed you can download wget and compile it (Please note that if you…
When you use a proxy server, your traffic can be detected as coming via a proxy by sites like Hulu. If you are running squid3, the you can stop this detection by adding the following lines to your config file Add the following to the file You can now test…
I found this site on the BBC new site. There are a set of fonts that have been developed to help people with Dyslexia read text easier. I have been using these for a couple of weeks now and they do help. To try for your self, you can download…
When traffic matches an access list rule, the hit count on the access list rule is incremented. To reset this hit count to zero, you can use the following command (please note that the hit count counters can only be reset on the whole access list, not on a single…
Below are some useful commands to manage users in MySQL: List all Users Run the following query to get a list of the users: Add User To create a new account: Here the ‘adm’ user is created, which can only connect from localhost. In MySQL a user is always associated…
On a Mac to list processes and the ports that are listening on, type the following into a terminal window:
To show the hidden files and folders in Finder, launch terminal and enter the following syntax: Launch Finder and you should now be able to see the hidden files and folders. To hide the hidden files and folders again launch, terminal and enter the following syntax:
I was recently looking for a way of encrypting files with a salted encryption algruthum, and found this can be done using OpenSSL. It’s really easy and much more secure that using a zip product. You do this by using the following syntax: openssl des3 -salt -in /path/FileToBeEncrypted -out /path/EncryptedFileName…