/dev/random

For a long time ago, I did not write about OpenBSD which remains one of my favorite operating system. The last version (4.7) was released in May and introduced, as usual, a lot of interesting changes. OpenBSD comes of course with it’s own firewall called pf (“packet filter“). Plenty of features are available but pf [...]

Dedibox is a French collocation service part of the Iliad group. They rent dedicated servers at a very good price. In the standard offer, servers can be installed with standard operating systems: UNIX or Windows. “UNIX” includes all major distributions like Ubuntu, CentOS, Fedora, Slackware or Gentoo). I maintain my server hosted @ Dedibox but [...]

“Know your Network!” All network administrators have to know what append on their networks: what are the flows of information between hosts, to Internet, between VLANs. This is a requirement for security or provisioning purposes but also for business when the amount of IP traffic has to be billed to a customer. For years, Cisco [...]

It’s always useful to have a Live CD with us and much more if it’s a CD of my favourite UNIX flavor! BSDanywhere 4.3 is out!

On UNIX, the tail[1] command displays the last ten lines of a file by default. But there are many other options: Especially the “follow” flag (-f) which displays all new lines appended to the watched file. This a very basic but efficient monitoring tool. The GNU version of tail introduced a nice feature: It is [...]