ClamAV on Dapper

Update 2009-07-03: Install development libraries for ncurses to make clamdtop work. See below.
Update 2008-04-30: Change compiler for 0.93, see below.
The newest clamav is not always obtainable as .deb, so this is what I did:

• Install some needed stuff:
  apt-get install libgmp3-dev libbz2-dev
• Create the clamav user and group:
  adduser --system --home /dev/null --group clamav
• make directories if you need them:
  mkdir /var/log/clamav; chown clamav /var/log/clamav
  mkdir /var/run/clamav; chown clamav /var/run/clamav
  mkdir /var/lib/clamav; chown clamav /var/lib/clamav
  
• Download the source from www.clamav.net
• untar (with 'tar zxvf')
• cd into the source directory
• ./configure --prefix=/usr --sysconfdir=/etc/clamav
• make; make check; make install
• clamd -V
  ClamAV 0.90.3/3604/Thu Jul 5 12:33:34 2007ClamAV 0.90.3/3604/Thu Jul 5 12:33:34 2007
• Update for version 0.93.
  Trying to compile version 0.93, raises the following error:
  checking for gcc bug PR28045... configure: error: your compiler has gcc PR28045 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28045
  There is is some explanation here.
  Recommend is to use an older compiler. Just do this:
  apt-get install gcc-3.4
  To switch from gcc-4.0 to 3.4, use this script:
  #!/bin/bash
  # uses gcc-3.4
  cd /usr/bin
  rm gcc
  ln -s gcc-3.4 gcc
  rm gccbug
  ln -s gccbug-3.4 gccbug
  rm gcov
  ln -s gcov-3.4 gcov
  And vice versa:
  #!/bin/bash
  # uses gcc-4.0
  rm gcc
  ln -s gcc-4.0 gcc
  rm gccbug
  ln -s gccbug-4.0 gccbug
  rm gcov
  ln -s gcov-4.0 gcov
  end update for 0.93
• Update for version 0.95.x
  The same gcc problems. But there's a new tool: clamdtop. It needs ncursus. So do this before ./configure:
  apt-get install libncurses5-dev
  end update for 0.95.x
• You need to obtain an /etc/init.d script. I used the one that was installed with the standard dapper clamav package, and then changed some pathnames. After you installed an /etc/init.d script, do
  update-rc.d clamav-daemon defaults
  update-rc.d clamav-freshclam defaults

AFAIK your old config files in /etc/clamav will not be overwritten. However, it's a good idea to make a copy of those before you install clamav.

The old (pre-90) config files are not compatible. You need to edit them.

In clamd.conf, you add 'yes' to all options that have no argument. For example: in the old config file, it says:

In freshclam.conf, you need to change

now restart both deamons:

Check the logfiles!

Zentyal/Ebox, slowness, and WDxxEARS Advanced Format

• Zentyal (formerly named Ebox) is an Ubuntu based Small business server that is easy to configure and in my opnion a real breakthrough in Ubuntu-based small business servers. Unfortunately, I had a bit of bad luck (or lack of information) when I installed my first two servers for clients on Curaçao. The server was very, very slow, up to the point where a simple ssh login took 2 minutes and in one case the install halted halfway. I spent many hours trying to troubleshoot the problem and meanwhile I had to revert to webmin or some other solution.


• The problems are described in the following posts on the Zimbra forum:
  http://forum.zentyal.org/index.php?topic=3697.0
  http://forum.zentyal.org/index.php?topic=4212.0
  http://forum.zentyal.org/index.php?topic=3968.0
  http://forum.zentyal.org/index.php?topic=3427.0
  http://forum.zentyal.org/index.php?topic=4273.0
  and most notably
  http://forum.zentyal.org/index.php?topic=5724.0


• Unfortunately, the forums didn't help much. After many days of frustration, I decided to buy support, which cost 390 EUR. I've never paid for support before in my life and I hope I don't have to do it again. Although the team at Zentyal did their best to help me, they didn't really succeed. Finally, after swapping out all hardware except the harddisks, I bought a new harddisk, although there where no harddisk errors reported and SMART status was okay.


• Then it hit me like a brick. I typed in the model number of my Western Digital Caviar Green WD10EARS and what do you think - hundreds of posts about how this harddisk uses Advanced Format and how that gives loads of problems. Google for yourself: any WD of the EARS series has this problem. My new disks where of the EADS series and after copying all the data (which took ages) and reinstalling the server, the server was flying! Normal load, normal speed, everything was fine.


• The problem lies in the alignment of sectors on the EARS drive. More information on the Advanced Format can be found here and here.


• After I repartitioned the EARS drives by hand, I installed a new server with these disks, and the server was as fast as it should be. Wrong alignment of the EARS drives really really slows all disk I/O down.


• Newer versions of parted should detect AF automatically and so I hope the Zentyal team will put the newer version of parted into their installer. Also, when giving support, a simple
  
  
  hdparm -i /dev/sd?|grep EARS
  
  
  would make the problem clear right away. A pity that the team at Zentyal didn't know that and I hope this information will be integrated in their knowledgebase.


• All in all, I find Zentyal a great product that really fills a niche in the small business server market. I am happy with the server now that the slowness problems have been solved.

Ebox 1.4 and HP Color LaserJet 2600N

• Follow instructions here: ubuntuforums.org, except the last step.
  
  
  $ wget -O foo2zjs.tar.gz http://foo2zjs.rkkda.com/foo2zjs.tar.gz
  $ tar zxf foo2zjs.tar.gz
  $ cd foo2zjs
  $ make
  $ ./getweb 2600n # Get HP LaserJet 2600n .ICM files
  $ sudo make install
  $ sudo make cups
  
  
  Now go to Ebox -> Printer Sharing -> Add Printer
  And go find the HP -> Color Laserjet 2600N. It will now have a driver (foo2hp). The next page you can select stuff:
  
  "Color Mode" = Color
  "Bits Per Plane" = 2
  "ICM Color Profile" = (something like hpclj2600n-0.icm)