Difference between revisions of "Clamav:freshclam update"
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| − | + | On occasion there can be errors with clamav which can relate to the download of update files as shown below. The admin account can be flooded by emails when clamav tries to update its database, this can occur several times a day. | |
freshclam: Update failed | freshclam: Update failed | ||
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2013-03-02 22:58:52.561968500 Update failed. Your network may be down or none of the mirrors listed in /etc/freshclam.conf is working. Check http://www.clamav.net/support/mirror-problem for possible reasons. | 2013-03-02 22:58:52.561968500 Update failed. Your network may be down or none of the mirrors listed in /etc/freshclam.conf is working. Check http://www.clamav.net/support/mirror-problem for possible reasons. | ||
| − | {{Tip box|This is a workaround to | + | {{Tip box|This is a workaround to create a new database solving the error condition of clamav. Use a root terminal to perform these commands.}} |
Shutdown clam so clamd.socket file is removed | Shutdown clam so clamd.socket file is removed | ||
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cd /var/clamav | cd /var/clamav | ||
| − | which | + | which showes just 5 files in the /var/clamav folder: |
ls -la /var/clamav | ls -la /var/clamav | ||
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-rw------- 1 clamav clamav 104 Feb 24 14:46 mirrors.dat | -rw------- 1 clamav clamav 104 Feb 24 14:46 mirrors.dat | ||
| − | {{Warning box|if you | + | {{Warning box|if you have limited bandwidth or on a slow connection '''then don't delete''' main.cvd}} |
| − | Remove ALL files from folder to provide clean slate for update process | + | Remove ALL files from folder to provide a clean slate for update process |
rm -f /var/clamav/* (you could skip the -f & confirm every file delete for safety) | rm -f /var/clamav/* (you could skip the -f & confirm every file delete for safety) | ||
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clamav-0.97.6-1.el5.rf | clamav-0.97.6-1.el5.rf | ||
| − | Update clamav to latest version if required '''it will Not | + | Update clamav to latest version if required '''it will Not download clamav-db''' |
yum update clamav | yum update clamav | ||
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| − | + | Finally & to be absolutely sure signal-event post-update; signal-event reboot, then go through the logs post reboot to make sure everything started correctly. This is not necessary for this procedure but doesn't hurt. | |
[[Category:Howto]] | [[Category:Howto]] | ||
Revision as of 23:05, 10 March 2013
On occasion there can be errors with clamav which can relate to the download of update files as shown below. The admin account can be flooded by emails when clamav tries to update its database, this can occur several times a day.
freshclam: Update failed
2013-03-02 22:57:11.757539500 ClamAV update process started at Sat Mar 2 22:57:11 2013 2013-03-02 22:57:31.922779500 WARNING: Can't query current.cvd.clamav.net 2013-03-02 22:57:31.922783500 WARNING: Invalid DNS reply. Falling back to HTTP mode. 2013-03-02 22:57:31.923493500 Reading CVD header (main.cvd): ERROR: Can't get information about database.clamav.net: Temporary failure in name resolution 2013-03-02 22:58:52.561344500 WARNING: Can't read main.cvd header from database.clamav.net (IP: ) 2013-03-02 22:58:52.561855500 Giving up on database.clamav.net... 2013-03-02 22:58:52.561968500 Update failed. Your network may be down or none of the mirrors listed in /etc/freshclam.conf is working. Check http://www.clamav.net/support/mirror-problem for possible reasons.
Shutdown clam so clamd.socket file is removed
service clamd stop
Navigate to clamav folder
cd /var/clamav
which showes just 5 files in the /var/clamav folder:
ls -la /var/clamav -rw-r--r-- 1 clamav clamav 60125 Feb 17 12:11 bytecode.cvd srw-rw-rw- 1 clamav clamav 0 Feb 24 14:27 clamd.socket -rw-r--r-- 1 clamav clamav 52101120 Feb 24 11:46 daily.cld -rw-r--r-- 1 clamav clamav 30750647 Oct 11 2011 main.cvd -rw------- 1 clamav clamav 104 Feb 24 14:46 mirrors.dat
Remove ALL files from folder to provide a clean slate for update process
rm -f /var/clamav/* (you could skip the -f & confirm every file delete for safety)
Current Clamav version is clamav-0.97.6
rpm -q clamav clamav-0.97.6-1.el5.rf
Update clamav to latest version if required it will Not download clamav-db
yum update clamav
Restart clamd
service clamd start
Update signatures
freshclam -v (--no-dns can be used if just -v fails)
Check output from freshclam to make sure update completes sucessfully.
Current working dir is /var/clamav Max retries == 6 ClamAV update process started at Sun Feb 24 15:14:02 2013 Using IPv6 aware code Querying current.cvd.clamav.net TTL: 900 Software version from DNS: 0.97.6 main.cvd version from DNS: 54 main.cvd is up to date (version: 54, sigs: 1044387, f-level: 60, builder: sven) daily.cvd version from DNS: 16731 daily.cld is up to date (version: 16731, sigs: 829102, f-level: 63, builder: guitar) bytecode.cvd version from DNS: 214 bytecode.cvd is up to date (version: 214, sigs: 41, f-level: 63, builder: neo)
Finally & to be absolutely sure signal-event post-update; signal-event reboot, then go through the logs post reboot to make sure everything started correctly. This is not necessary for this procedure but doesn't hurt.
