Hi all,
some of you are reporting that mail services or Samba file sharing stopped working yesterday 15 April 2010. This happens only if you have antivirus enabled. Clam Antivirus has disabled all installations older than 0.95:
http://www.clamav.net/lang/en/2009/10/05/eol-clamav-094 .
To fix this issue make sure you have your system updated which is a general security recommendation.
First, check that you have these lines in your /etc/apt/souces.list:
deb http://es.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
deb http://es.archive.ubuntu.com/ubuntu/ hardy-updates universe
deb http://es.archive.ubuntu.com/ubuntu/ hardy-updates multiverse
deb http://security.ubuntu.com/ubuntu hardy-security main restricted
deb http://security.ubuntu.com/ubuntu hardy-security universe
deb http://security.ubuntu.com/ubuntu hardy-security multiverse
To upgrade only Clam AV:
$ sudo apt-get update
$ sudo apt-get install clamav clamav-base clamav-daemon clamav-freshclam libclamav6
To upgrade all your system (use with caution):
$ sudo apt-get update
$ sudo apt-get upgrade
Or you can also use Software Management module on the eBox interface.
To check you upgraded successfully to 0.95, you should get an output similar to this one:
$ dpkg -l | grep clam
ii clamav 0.95.3+dfsg-1ubuntu0.09.04~hardy2.3 anti-virus utility for Unix - command-line i
ii clamav-base 0.95.3+dfsg-1ubuntu0.09.04~hardy2.3 anti-virus utility for Unix - base package
ii clamav-daemon 0.95.3+dfsg-1ubuntu0.09.04~hardy2.3 anti-virus utility for Unix - scanner daemon
ii clamav-freshclam 0.95.3+dfsg-1ubuntu0.09.04~hardy2.3 anti-virus utility for Unix - virus database
ii libclamav6 0.95.3+dfsg-1ubuntu0.09.04~hardy2.3 anti-virus utility for Unix - library