I don’t know if 260000+ rejected attempts to relay email through an email server within a week should be considered an attack or just a considerable amount of bad traffic, but for my small server with the limited bandwidth this was an incident that I wouldn’t like to face on a regular basis. This article [...]

A while back I had mentioned dircproxy as a solution for an IRC proxy server. Although dircproxy is good and effective, recently I’ve been reading many positive comments about another similar application, BIP. I hope I find some free time in the next days to give it a shot. Judging by its extensive feature set, [...]

Apache is a very flexible web server implementation. The .htaccess files give the webmasters the ability to override the default server configuration on a per-directory basis, provided that httpd’s configuration pernits the overrides of the htaccess file. I am aware that there are thousands of cheat sheets (aka ready-made recipes) out there, mostly implementing mod_rewrite conditional redirections, but I decided to bookmark this article because it is very well and carefully written.

A long time has passed since Fedora 6 was released, many of the initial bugs have been fixed, so I decided to perform an upgrade of the installation on the server that powers this web site. Everything has gone well, despite the fact that a few strange things happened during the upgrade.

Yesterday, I wrote about my need to be always connected to an IRC channel in order to keep a log of the chat even when I don’t follow the conversation in real-time. Under the given circumstances and not taking into account the possibility to keep my desktop machine always on, so XChat can log everything, [...]

The Dynamic Host Configuration Protocol or just DHCP provides networked devices with all the necessary parameters, IP addresses, network masks, the gateway or DNS servers IP addresses, so that they can actively participate in the network and start exchanging data with other devices or workstations. This automated operation, which greatly relieves the system administrator from [...]

As you may have noticed, I’ve changed my web site’s domain recently. Therefore, I had to redirect all requests to the new address. This has been done and it works as expected, but how about taking a closer look at the HTTP responses the web server returns to the client if an old URL is [...]

After having a look at the upcoming stories over at digg.com‘s Unix/Linux section, I noticed a reference to an LDAP HOWTO. This article goes in depth describing the LDAP protocol. I didn’t have the time to read it thoroughly, but this is a must read. The author writes: LDAP is a complex subject. This Guide [...]

ModSecurity is an Apache module which adds an extra layer of security by analyzing client requests before they are processed by Apache and, furthermore, by analyzing server responses after a request has been processed. This article intends to be a ModSecurity overview and to provide the reader with the basic knowledge about the most important directives. For detailed information refer to the ModSecurity Documentation.

This is a raw list of the HTTP Status Codes that I’d like to have handy. They have been grep-ed directly from the RFC2616, section 10.