Browsing All Posts filed under »Linux«

Change wireless settings – HP LaserJet P1102W

November 1, 2012


This post is a reference for me in case in the future I have to change again the settings of my wireless HP printer. I had to change today my wireless settings as I have a new wireless router and wanted to use new SSID. The old router is a repeater-bridge now with the old […]

Play with Fortigate on your own ground!

June 30, 2012


It is the 3rd Firewall I tries at home on my laptop, that is required for my work. Cisco ASA works in GNS3 Checkpoint Firewall works in Virtualbox too, that is a great advantage for me as it is free and really easy to use. And now the Fortigate can work in test enviroment […]

My Apps on Ubuntu

May 12, 2012


The Ubuntu is my best OS after Fedora. The basic installation contains many applications I need, but not all. I am pretty sure that I will reinstall my linux and those apps should I install again: – skype from – openssh-server – secure shell (SSH) server, for secure access from remote machines – virtualbox […]

Virtualbox – the tool I use for virtualization of course with CLI

April 24, 2012


The Task: Create your virtual machine on a linux server and install it without X. Ohh, without GUI? iI must be difficult or not? Lets see it, to belive it. First I had to update the server and then install virtualbox. It can be done easily with apt. As my test server is behind a […]

openssl update on ddwrt, is it Checkmate or Check?

April 17, 2012


After reading an old articel on TLSv1 vulnerability I wanted to test it. The website I have red about this TLSv1 Issue: After reading I wanted to look for a webserver that support TLSv1. For that task I need only an openssl on a device with public internet access, that is actually my ddwrt […]

save and rotate backups

March 16, 2012


This is a really simply and of course my first script to copy firewall backups to a remote server and rotate the backups. – The script generate log files and list the files that were modified (copied or deleted). – The first part of the script checks on the remote server the old backups and […]

Timestamps of a file

March 16, 2012


For example to make a correct log file rotation or backup rotation or other kind of file rotation it is good to understand what kind of timestamp a file has and which one can be affected and how it can be affected. Here are documented the basic 3 linux commands that can be used to […]

How to loose everything and get it back

December 29, 2011


I had a dualboot laptop with windows XP and Ubuntu 11.10. I had the following partitions for Ubuntu: partition for “/boot”. This was the boot partition root partition “/” swap partition and an ntfs partition for windows and another one for the data. After installing XP I have lost the partitions table and the windows […]

Security tools with ddwrt and optware – Part II.

November 10, 2011


..!OPEnvPN!.. This is madness! It is the simpliest and cheapest ssl vpn solution I have ever seen and I can use it on my ddwrt router. I have documented here what and how I did, just in case I need it later, but shortly it is an openvpn setting on ddwrt router with certificate authentication. […]

Security tools with ddwrt and optware – Part III.

November 6, 2011


privoxy I am too tired to write about privoxy so I just copy the description from “Privoxy is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk. Privoxy has a flexible configuration and can be […]