Linux server Monitoring mind map

Details

Category: Linux

Published on Wednesday, 17 October 2012 22:11

Written by Administrator

Hits: 1391

I did create this mind map a while ago, and found it while going through my dropbox folders. Linux server Monitoring “You can't correct something you can't measure” is in version v 1.0.0

You’ll find in this mind map

What to monitor, how and the most useful commands to detect what happening on your Linux server.

Why a mind map?

A mind map is a diagram used to visually outline information. mind map help you take notes, brainstorm complex problems, and think creatively.

• Information are summarized efficiently to be usable and accessible,
• Inter-relationships are clear between the different concepts,
• It is the most flexible for organizing associative, divergent and convergent thinking (Convergent thinking involves aiming for a single, correct solution to a problem, whereas divergent thinking involves creative generation of multiple answers to a set problem),

Read more: Linux server Monitoring mind map

Restrictive Iptables Based Firewall for Webserver script

Details

Category: Linux

Published on Sunday, 29 January 2012 18:53

Written by Administrator

Hits: 1620

This script is working on all Linux standard distribution, but use at your own risk! The script has been made to automated the creation of iptables rules. There is an easy to use menu as well

root:~# ./firewall.sh
 Firewall script by www.waltercedric.com
  Credits to all various authors - GNU/GPL 3.0 Script
  Choose one of the following options:

[N]ew firewall rules
[C]lear all firewall rules
[T]est firewall rules
[S]ave firewall rules to /etc/network/iptables
[E]xit

Features

To use it, just edit the file firewall.sh and change the variables.

Read more: Restrictive Iptables Based Firewall for Webserver script

Ubuntu 12.04 update nginx to the latest version

Details

Category: Linux

Published on Friday, 17 August 2012 09:13

Written by Administrator

Hits: 2851

Official version of nginx for Ubuntu Precise is 1.1.19 but the latest available stable version is 1.2.2 (Changes), In this post I will present you how to update to the latest available version.

vi /etc/apt/sources.list

and add depending on your Ubuntu version either

For Ubuntu 10.04 Lucid:

deb http://nginx.org/packages/ubuntu/ lucid nginx
deb-src http://nginx.org/packages/ubuntu/ lucid nginx

For Ubuntu 12.04 Precise:

deb http://nginx.org/packages/ubuntu/ precise nginx
deb-src http://nginx.org/packages/ubuntu/ precise nginx

Now you can run

apt-get update

When using the public nginx repository for Ubuntu, you’ll get this error

W: GPG error: http://nginx.org lucid Release: The following signatures 
couldn't be verified because the public key is not available: NO_PUBKEY ABF5BD827BD9BF62

First of all this is only warning and you can ignore it, if you know what are you doing and in case you prefer to add public key, used for signing packages and repository, just run:

gpg -a --export 7BD9BF62 |  sudo apt-key add -

or

wget http://nginx.org/packages/keys/nginx_signing.key
cat nginx_signing.key | sudo apt-key add -

apt-get update should now run fine, however after running an

apt-get install nginx

you may still get this kind of error:

dpkg: error processing /var/cache/apt/archives/nginx_1.2.2-1~precise_amd64.deb (--unpack):
 trying to overwrite '/etc/logrotate.d/nginx', which is also in package nginx-common 1.1.19-1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/nginx_1.2.2-1~precise_amd64.deb

just remove nginx-common and retry

apt-get remove nginx-common 

More at http://wiki.nginx.org/Install