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In this post, I'll be writing down all steps required to build a Squid proxy server on a clean "minimal" installation of CentOS 6.0

Step 1. Network configuration

First, install system-config-network or manually configure the network. I prefer system-config-network for easy configurations and vim for more complex configurations.
yum… Read more

Today I upgraded my Fedora 15 installation to Fedora 16 with KDE 4.7.4. Although it was a pretty smooth transition this time, there were a few problems. One of them was that Konsole 4.7.4-2.fc16 was hiding underscores, which is pretty annoying when you're programming.

How the hell are you… Read more

One of my users got an annoying message when starting MS Paint (mspaint.exe):

Onvoldoende geheugen of bronnen om de bewerking te voltooien. Sluit enkele programma's af en probeer het opnieuw.

Which means:

Insufficient memory to complete operation. Close some programs and try again

Other resources suggested that the file opened… Read more

I'm currently running CF-Root kernel version CF-Root-SGS2_XW_XEN_KK2-v5.0-CWM5.

I installed the following packages:

https://market.android.com/details?id=de.schaeuffelhut.android.openvpn.installer

https://market.android.com/details?id=de.schaeuffelhut.android.openvpn

Then I discovered that the openvpn binary was not completely okay, especially the ifconfig parameter gave some unexpected errors on correct configurations. So I downloaded this file (mirror), unzipped it,… Read more

On my Fedora 15 laptop, I'm almost always connected to several VPNs simultaneously. One VPN to my office or to my home (depending on where I am), one to the data center, one to a customer. These connections all have their own DNS server with their own suffix.

To make… Read more

Connect two netcats to each other

<span style="color: #c20cb9; font-weight: bold;">mkfifo</span> backpipe

nc localhost <span style="color: #000000;">55545</span> <span style="color: #000000;">0</span><span style="color: #000000; font-weight: bold;">&lt;</span>backpipe <span style="color: #000000; font-weight: bold;">|</span> nc localhost <span style="color: #000000;">55546</span> <span style="color: #000000;">1</span><span style="color: #000000; font-weight: bold;">&gt;</span>backpipe

Telnet with readline and a history:

socat <span style="color: #660033;">-d</span> <span style="color: #660033;">-d</span> READLINE,<span style="color: #007800;">history</span>=<span style="color: #007800;">$HOME</span><span style="color: #000000; font-weight: bold;">/</span>.http_history \

TCP4:www.domain.org:www,crnl

Talk… Read more

As I may have mentioned before VMWare Data Recovery is not my favorite backup solution. I'm pleased to report that VDR2.0 is a LOT better than 1.x ever was. Since upgrading, my backups haven't failed once. And it even has a built-in email reporting system.

Unfortunately, this mail… Read more

To print labels on my… Read more

To allow OpenVPN to run on a different port than 1194, you'll need to tweak your SELinux permissions:
/usr/sbin/semanage port -a -t openvpn_port_t -p udp 61616

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