A 7-post collection

by Andrea Leofreddi

How to compress a PDF file on MacOSX (& Linux)

Often (and especially when scanning documents with my printer) from MacOSX I would get unreasonable huge PDFs which are not suitable for emails. To strip

Tags: Unix, Linux, macOSX, pdf

Jetty on RHEL 7/CentOS 7

If you look around on the internet you may find a lot of blogs guiding you on the installation of Jetty in RHEL 7 (or

Tags: Java, Linux
Some applications using I²C

Some applications using I²C

Parallel and serial ports are disappearing from today’s pc making life harder for the people who wants to connect their home-made devices to a


Nagios nrpe and sudo: "NRPE: Unable to read output"

On CentOS 5 (and RedHat EL as well), you can encounter the following behaviour when configuring an nrpe plugin with sudo: [andrea@feyd ~]$ /usr/lib/

Tags: Linux, Nagios, Sudo, Unix

Using samba with autofs on Fedora 9

Mount a samba share on the fly without having it mounted statically at boot via the /etc/fstab file can bring you the advantage of

Tags: Linux, Samba

MusicBrainz not working with Amarok on Fedora 8

On my Fedora 8 system with Amarok I was trying to fill an mp3’s tag header using MusicBrainz, getting the following error: Tunepimp (MusicBrainz

Tags: Amarok, Linux

SSH X11 forwarding issue

Recently I’ve been in an awkward situation with ssh and X11 forwarding, where ssh using the classic -Y or -X option wasn’t working

Tags: Linux, ssh, Unix, X11