How to set the Expires header correctly in Varnish
This post provides the required VCL code and describes how to dynamically set the Expires header whenever an object that has been cached by Varnish is requested.
Tag Archives: HOWTO
How to terminate running Python threads using signals
This post outlines some important details you should know in case you plan to use signals to terminate a Python script that uses threads. A sample code snippet is also provided as an example that shows how it works.
Caching Nameserver using dnsmasq
This tutorial contains information about the preparation of the system in order to run dnsmasq and also detailed instructions about how to configure it as a caching DNS server. A full configuration file is also provided as a drop-in replacement for the default dnsmasq.conf.
Set up an anonymous FTP server with vsftpd in less than a minute
This small HOWTO describes how to configure vsftpd for an anonymous FTP site in order to make files available across your local network or the internet. The scenario this guide is based on is to quickly make a linux distribution’s installation tree available across the local network in order to be used for a network…
Use the Alternatives System to switch to a custom Firefox release
From a user’s perspective, having to use an old beta version of Firefox in my primary desktop, while, at the same time, a final stable release of the browser has been released, is a bit annoying. But, the fact that this happens due to technical issues makes it partially acceptable. The following article aims to…
Using SSH for networking
This is mainly a note to myself about two patches, just in case I ever decide to use OpenSSH for networking, in addition to remote administration. First, is the cipler-none patch that adds none as a valid argument to the -c command line option. By using it, the transferred data is not encrypted. Pros: eliminates…
How to Disable IPv6 in Fedora and CentOS
They say that by disabling IPv6 things get a bit smoother and faster regarding networking. I don’t really know if this is true, but I guess, if you’ve decided to disable this feature, you probably care to do it the Right Way™. As far as I know, trying to disable IPv6 through anaconda during the…
Use mod_deflate to Compress Web Content delivered by Apache
One of the most efficient methods to reduce the usage of bandwidth by the web server and, at the same time, increase the speed of the content delivery is to compress your web pages and, generally, all output that is returned to the clients. The compression of the web content can be done using several…
How to extract RPM or DEB packages
RPM and DEB packages are both containers for other files. An RPM is some sort of cpio archive. On the other hand, a DEB file is a pure ar archive. So, it should be possible to unpack their contents using standard archiving tools, regardless of your distribution’s package format. Under normal conditions, you should use…
Viceo Backend for SANE with libusb support
After many years of failure, countless hours of digging into the World Wide Web for information, numerous failed attempts due to lack of knowledge to modify the v0.6 E3 driver for USB scanners (Viceo backend) and add support for libusb, yesterday I was sent a patch, which contained the Viceo backend for SANE with libusb…