Here is small script that does this. Debian or Ubuntu GNU/Linux does not comes with any SYS V init script (located in /etc/init.d directory) . You create a script as follows and use it to stop or flush the iptables rules. Please don’t type rules at command prompt. Use the […]
Tag: Debian
Restore Debian Linux Grub boot loader
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How To Install A Complete LEMP (Linux – EngineX (Nginx HTTP SERVER) – Mysql – PHP) Server (Not LAMP…) On Ubuntu/Debian
This HowTo will describe the setup of an efficient http server and mail server for small or medium configurations (as low as 96 mb). So this config is ideal for a small VPS. You can find a good choice of cheap and performant VPS (XEN) at x|encon, a german hosting […]
After cloning a Debian/Ubuntu VM, the guest network is not working
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Move or migrate user accounts from old Linux server to a new Linux server
Q. How do I Move or migrate user accounts to from old Linux server a new Cent OS Linux server including mails? This new system a fresh installation. A. You can migrate users from old Linux server to new Linux sever with standard commands such as tar, awk, scp and […]
Host Based Intrusion Detection – Samhain
I am not going to ramble on about what host based intrusion detection is or why to use it, as there are plenty of articles already covering those subjects. This article is just to show you how to get Samhain up and running in a client / server configuration with […]
How Do I Run a Firewall Script As Soon As eth0 Interface Brings Up?
I use ADSL at home via ISP modem. As soon as my eth0 comes up I would like to have my firewall script get executed and setup the iptables firewall rules for me. Earlier, I used to type the command /root/fs.dsl.start via the sudo command. However, while reading the man […]
Linux : How to run a command when boots up?
Other distribution provided the file called /etc/rc.local but Debian does not use rc.local to customize the boot process. You can use simple method as follows to customize it. (A) Execute command at system startup Let us assume you would like to run command called i) Create a script called mystartup.sh […]
How to Disable ICMP Redirects AT BOOT TIME
ICMP Redirects Send and Accept are by default enabled on most of the linux flavours including Debian, Ubuntu, Redhat Enterprise Linux, Suse Linux. While ICMP Redirects are not the very efficient way to update a hosts Routing table of an optimal route to a target destination, it can cause serious […]
Lighttpd FasCGI PHP, MySQL chroot jail installation under Debian Linux
The instruction mentioned below only applies to Debian and Ubuntu Linux. I am going to document following things: => Install lighttpd => Prepare the file system for the jail => Run FastCGI PHP and MySQL from the jail => Add Perl support to the jail => Take care of sendmail […]