MyLiteratureTechLife.COM » Web Servers Security

Securing Kloxo lxadmin with iptables firewall

shk — Sat, 18 Dec 2010 18:49:06 +0000

Iptables is a default firewall available in all linux flavors, and widely used to secure servers. If you are running kloxo, and want to use iptables to secure your box, then here are the basic rules which you can add in your iptables. # Clear rules iptables -t filter -F iptables -t filter -X echo [...]

Securing Kloxo lxadmin with iptables firewall is a post from: MyLiteratureTechLife.COM

Securing server from SYN flooding DOS attack

shk — Sat, 18 Dec 2010 18:24:57 +0000

As the internet is becoming larger day by day, therefore security risks for your servers are also increasing. If your server is connected to internet and is hosting some good high traffic and popular websites, then there are high chances that you get SYN flooding. SYN flooding is a kind of DOS attack, a.k.a “Deniel [...]

Securing server from SYN flooding DOS attack is a post from: MyLiteratureTechLife.COM

How to find process root in Linux

shk — Tue, 09 Nov 2010 21:04:38 +0000

If you find a process creating load on your linux machine, and you want to find the application, file or script which is running this process and ps aux command is your friend. Suppose, a php process is running and creating load, you can run ps aux | grep php It will show the the [...]

How to find process root in Linux is a post from: MyLiteratureTechLife.COM

Disabling Dr web notifications

shk — Wed, 22 Sep 2010 11:53:11 +0000

Edit /etc/drweb/drweb_qmail.conf to stop receiving DrWeb notification messages… [VirusNotifications] SenderNotify = no AdminNotify = no RcptsNotify =no Also, there are many other configuration options for the notifications, you may configure them as you wish. Then restart DrWeb Service to apply the changes. #/etc/init.d/drwebd restart NOTE: If this file “drweb_qmail.conf” not present under this directory “/etc/drweb/”, [...]

Disabling Dr web notifications is a post from: MyLiteratureTechLife.COM

Mount reiserfs partitions on CentOS

shk — Sun, 19 Sep 2010 18:11:38 +0000

CentOS use ext3 file system, and it do not support reiserfs. Therefore if you try to mount a drive with reiserfs partition, it give error mount: fs type reiserfs not supported by kernel It’s possible to see what filesystems are supported by running this command: cat /proc/filesystems On my fairly default install CentOS 4 machine, [...]

Mount reiserfs partitions on CentOS is a post from: MyLiteratureTechLife.COM

How to secure SSH in your server ?

shk — Sat, 15 May 2010 11:56:58 +0000

1) Set a very strong password, keep it in your mind but dont write in somewhere. 2) Disable direct root login emacs /etc/ssh/sshd_config Search for #PermitRootLogin yes Set it as PermitRootLogin no Restart ssh service sshd restart 3) Limit user login AllowUsers username Restart ssh service sshd restart 4) Disable protocol 1 ssh use 2 [...]

How to secure SSH in your server ? is a post from: MyLiteratureTechLife.COM

why sites suddenly stopped working in dedicated/virtual private servers

shk — Wed, 17 Mar 2010 12:23:40 +0000

VeriSign has made some changes recently which are applied since March 1, 2010. You can read detail by clicking here How do I fix it? You need to log in to your control panel and modify the affected domain name’s zone file, using the table below as an example. To Modify or Add DNS Records [...]

why sites suddenly stopped working in dedicated/virtual private servers is a post from: MyLiteratureTechLife.COM

ip_conntrack table is full and dropping packets

shk — Fri, 12 Mar 2010 12:00:18 +0000

Last day one of our server had an attack, attack was not so big but still server was unresponsive because of this. After some research I found that this is because of iptables which are being load while handling so much traffic. Then I found a good article on the same issue which you can [...]

ip_conntrack table is full and dropping packets is a post from: MyLiteratureTechLife.COM

Installing & configuring shorewall firewall in Ubuntu/Debian

shk — Fri, 05 Feb 2010 21:19:31 +0000

Shore line firewall known as “Shorewall”, it is a very high level firewall and very easy to install and ocnfigure How to install :- sudo apt-get install shorewall configuring shorewall startup service :- nano /etc/default/shorewall #Now simply change the line below from 0 to 1 startup = 0 to startup = 1 #save, and exit. [...]

Installing & configuring shorewall firewall in Ubuntu/Debian is a post from: MyLiteratureTechLife.COM

Browser security handbook by Google

shk — Sun, 15 Nov 2009 18:36:32 +0000

Browser security handbook is released by Google, and google has described it as “a comprehensive, 60-page document meant to provide Web application developers and information security researchers with a one-stop reference to several hundred key security properties and sometimes counterintuitive quirks in contemporary Web browsers.” Book is written by “Michal Zalewski”, who is very a [...]

Browser security handbook by Google is a post from: MyLiteratureTechLife.COM