PS Cheatsheet

ps
The ps stands for process status and it is a handy tool used to retrieve the information about currently running processes on Linux or BSD systems. This cheatsheet collets the most useful ps invocations.
Read more…

Cheatsheets

Install and secure LAMP on CentOS

centos-secure-lamp

Use YUM to retrieve and install the Apache HTTP server and additional components. After that, start the web-server and put it on startup:

yum install httpd httpd-devel
service httpd start
chkconfig httpd on

Next step is securing Apache. Edit the config /etc/httpd/conf/httpd.conf and set:

ServerSignature Off
ServerTokens Prod
ErrorDocument 500 "Internal error"
ErrorDocument 404 "Not found"

First line tells Apache to not display the server version on generated pages. The second one makes the web-server to return only "Apache" in the header response.
Read more…

Cheatsheets

Create and test CentOS LiveCD ISOs on remote server

centos-livecd
A Linux Live CD is an optical media that you insert into your drive and it will load the Linux operating system of choice for your use. This article explains how to create a customized CentOS LiveCD ISO using LiveCD tools and how to test it using qemu. All operations was done on CentOS server used for LiveCD development with SSH access enabled.
Read more…

Articles