This article is part of a series regarding firewalling and network security using the Firewall Builder tool on Ubuntu. This is user-contributed content. If you would like to contribute an article, please see the About page for contact information.
Using Built-in Policy Importer in Firewall Builder
Author: vadim@fwbuilder.org
http://www.fwbuilder.org
This article continues the series of articles on Fireall [...]
This article is part of a series regarding firewalling and network security using the Firewall Builder tool on Ubuntu. This is user-contributed content. If you would like to contribute an article, please see the About page for contact information.
Getting Started with Firewall Builder
Author: vadim@fwbuilder.org
http://www.fwbuilder.org
This guide starts a series of articles about Firewall Builder. Firewall [...]
I have been getting more and more tired of Firefox lately. Tired of the bloat. The unreliability. The gecko engine. I’ve been tinkering with alternate browsers such as Midori (which is *great*, assuming you can get >=0.1.6), Arora and Chromium. I think WebKit is the browser engine of the future, and with these browsers it [...]
I know many of you use Launchpad’s “Personal Package Archive” for updated and beta packages. I have about a half-dozen configured on my machine to give me the latest and greatest of my favorite applications. The one problem with a PPA though is that the packages can’t be verified when downloaded because you don’t have [...]
At work we maintain over a hundred machines, most of which are regularly accessed via SSH by our developers. Due to the number of machines and the number of tasks that need completed, we found that many of the developers would often forget they were logged into a server and leave an idle SSH session [...]
I got to thinking about something the other day when I rebuilt my webserver using Debian 5.0. How does Debian/Ubuntu standardize on reloading the iptables rules at boot time?
I know that Red Hat and its variants use the /etc/sysconfig/iptables file as a save and restore point, and there is an init script, iptables, that [...]
This post is published in the hope that it’ll help others solve an issue I’ve been dealing with for the past few weeks. I have searched and searched for a solution and only recently found one workaround for the problem. The bug that I have found is here. Hopefully with some more attention it’ll be [...]
I have been tunneling all of my web traffic over an encrypted SSH connection for some time now. Considering the fact that I travel a lot, I’m very regularly on untrusted, insecure networks. I prefer to secure those connections (web, IM, email, etc) by creating an encrypted SSH connection and pushing the traffic [...]
I covered VNC this afternoon in my Linux system administration course and the question came up on how to secure VNC. You may or may not be aware than VNC is not encrypted by default, which could be a security concern.
If you use VNC regularly to connect to other Linux machines you may want [...]
I’m sure many of you have heard by this point that there is a reported vulnerability in openSSL and openSSH. The basis of this is that they keys that are generated when you use these tools (ie; installing openssh-server, etc) are generated in a weak manner and can be prone to simple brute force attacking.
If [...]
