Category: Uncategorized

  • Climging mountains

    paroie des morgans, salève 74 “pas mal le malpas” 6a, Rocher du Malpas 74

  • Activate core dumps on a go program launched via systemd

    You have to set the 2 following line in unit file: LimitCORE=infinity # unlimited core file sizeEnvironment=”GOTRACEBACK=crash” example: In case of panic core files will be stored in /home/toto. You can load them in a debugger for analysis. Go offers this nice feature out of the box: when you send it SIGQUIT signal, it exits with…

  • haproxy

    log every requests to stdout (mostly for containerized environment)

  • OpenBSD cheatsheet

    list services / restart a service rcctl ls all / rcctl restart configure an interface sh /etc/netstart wg1 equivalent to netstat -lpentu on linux netstat -f inet -t show routing table netstat -rn -f inet dump pf traffic tcpdump -lenvvvi pflog0 Show logs paquet for a specific port (443) tcpdump -n -e -ttt -r /var/log/pflog…

  • Freebsd revert a package to a previous version

    I am running Freebsd Current on my personal computer because I am interested in the development of the OS. Naturally, this brings its share of worries sometimes. One day, my X server refuses to start following an upgrade of the AMD graphics kernel module. So I decided to rollback on the previous version which worked…

  • FreeBSD

    Why Freebsd ? Quite simply because I like simple and tidy things. I have been a Linux user and sys-admin for several years (15+) now. I witnessed lot of (big) changes in all major distributions: debian, redhat (centos), slackware.And I come to say to myself that the work on the Linux kernel is excellent. way…

  • Who am I ?

    I’m a French 36yo man, father of two, I work as system engineer and devops in Switzerland. I am a Freebsd enthusiast, but globaly interested about Open-Source, free software projects and infrastructures. Although I have a personal preference for *BSD over Linux, for my workstation or for network nodes, it goes without saying that I…