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Since fstab (even with “nofail” option enabled) doesn’t seem to behave too good when trying to mount at boot something that isn’t actually plugged in (like an USB HDD) I realized it was a good idea to write a small script to run at startup which will be able to handle the situation a bit better. Arch Linux uses Systemd and even though a rc.local file can be created I decided to take the opportunity to understand a little bit of how it works and write a mount script for it.

From wikipedia: Avahi is a FLOSS Zero-configuration networking (zeroconf) implementation, including a system for multicast DNS/DNS-SD service discovery. Long story short: Avahi is used to resolve hostnames of LAN devices. I happen to have an ARM box on which runs a pretty minimal Arch Linux installation. Installing Avahi is pretty easy: [root@k* ~]# pacman -S avahi nss-mdns The latest version of Avahi (0.6.31-11) makes use of SO_REUSEPORT which is a new feature introduced in Linux kernel 3.

To password protect a directory “xyz” and every file and subdirectory in it open the configuration file (nginx.conf or one of the virtual host configuration files) and add the following two lines: location /xyz/ { auth_basic "Restricted Area"; auth_basic_user_file conf.d/htpasswd; } htpasswd file must be encrypted, it can be created using a tool named htpasswd. [root@xenserver ~]# cd /etc/nginx/conf.d/ [root@xenserver ~]# htpasswd -b htpasswd user password

XenServer, like many other bare-metal hypervisors, only supports a small bunch of RAID controllers. The difference between it and for example VMware ESXi is that XenServer is pretty much a CentOS minimal install with some proprietary administration tools and a pretty decent remote manager (only for Windows as long as I know…) while ESXi is a completely proprietary closed source blob. XenServer being based on CentOS makes it possible to do many weird unsupported things, like installing it on a software fake RAID on ICH8R.

Let’s say we have a big single FLAC file we want to split into multiple files, we are on Fedora and we don’t want to use anything but the command line. First of all: [root@fedora ~]$ yum install lame ffmpeg shntool cuetools To split the single FLAC file run: [user@fedora ~]$ shnsplit -o flac -f file_name.cue -t "%n - %p - %t" file_name.flac This will produce n single files, “-t” parameter is used to specify file name format (in this case: track_number – performer – track_name).

One year ago or so I wrote about my experience using the Logitech G500 on Linux, I like the mouse a lot, especially the scroll wheel, but there were also a couple of issues I couldn’t live with: 1. no driver for Linux, tuning DPI settings is a real PITA; 2. the fucker doesn’t track on close to every surface, be it a gadget mousepad you got for free at a meeting, a wooden table, a plastic-something table or a 20 € mousepad.

Long story short: in Fedora 20 (and as far as I remember also 19 and 18) XScreenSaver doesn’t power off the monitor backlight when locking the screen. Being the lazy ass I am it took like me 2 or 3 years to find the motivation to solve the issue. It was actually pretty simple, no need to edit some obscure config file or else, in XFCE just click on: Application menu -> Settings -> Screensaver.

Being the tinfoil hat I am I obviously don’t like nor use whatsapp, some time ago I set up my own XMPP server and made a bunch of close friends switch to it. There are multiple clients for every platform, my personal preference goes to Xabber on Android and Pidgin on GNU/Linux; both support OTR encryption and all around are pretty decent clients. The only real issue we had so far is the very annoying problem of lost messages; if the internet connection is stable and decent the problem will very likely never come up, too bad that mobile phone internet connection is everything but stable.

CentOS 6.5 is out

Ok, -everyone- knows it, this new version introduces a number of interesting updates, one above all: openssl version 1.0.1. Openssl is the library used by many programs to perform encryption tasks, for example it’s used by openssh, webservers, etc etc. The version included in CentOS 6.4 was really outdated, it doesn’t support TLS v1.2 for example, so I had to install it separately (which is a PITA to say the least).

It’s been quite a while since the last time I fired up the single stage (actually, it should be 290 days), let alone having a LN2 session. Past saturday I went to my grandfather’s place and got him a new PC since his precedent one is, to say the least, outdated. Anyway, since the old one has some interesting parts I decided to give it a try, hooked it to the single stage and baaaaaaam.