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Clamav:freshclam update (view source)

Revision as of 16:53, 10 January 2018

6,462 bytes added ,  16:53, 10 January 2018
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Sometime you can have clamav errors who ask to download some files as below, The admin account can receive a lot of emails when clamav try to update its database.
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==Method 1 - Freshclam update==
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 +
=== '''Problem''' ===
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On occasion there can be errors with clamav which can relate to the download of update files as shown below. In some instances, the admin account can be flooded by emails when clamav tries to update its database, this can occur several times a day.
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 +
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 22:57:11.757539500 ClamAV update process started at Sat Mar  2 22:57:11 2013
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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.
   −
This is a workaround to have a new database without complaints of clamav. use a root terminal to perform these commands.
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=== '''Solution''' ===
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{{Tip box|msg= As a result of [[bugzilla:8107]] and [[bugzilla:8108]] a script to  refresh clamav is now included in your SME Server}}
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To run this script and refresh clamav, open a terminal (logged as root) and issue the following command:
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/usr/bin/refreshclam
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then press "enter" .  The script will take a few minutes to complete. All steps will be displayed, ending up with the following WARNING : "Clamd was NOT notified : Can't connect to clamd through /var/clamav/clamd.socket connect(): No such file or directory.  This warning can be ignored, it is expected as a number of processes were stopped during execution of the script.
 +
 
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'''All other scripts below are deprecated. They are here for documentation purposes only.'''
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== Method 2 - Deprecated ==
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{{Note box|This method is deprecated.
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Please use the Freshclam update default script ie refreshclam - see Freshclam update - https://wiki.contribs.org/Clamav:freshclam_update#Freshclam_update}}
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See http://bugs.contribs.org/show_bug.cgi?id=7406#c32 for the source of this script, thanks chris.
 +
 
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Also check http://bugs.contribs.org/show_bug.cgi?id=8107 and http://bugs.contribs.org/show_bug.cgi?id=8108
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nano /usr/bin/refreshclam
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paste this content.
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#!/bin/bash 
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echo ----------------------
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echo Stop qpsmtpd/sqpsmtpd:
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echo ----------------------
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/usr/local/bin/svc -d /service/qpsmtpd/
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/usr/local/bin/svc -d /service/sqpsmtpd/
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echo ---------------------
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echo Stop freshclam/clamd:
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echo ---------------------
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/usr/local/bin/svc -d /service/freshclam/
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/usr/local/bin/svc -d /service/clamd/
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echo ------------------------
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echo Delete all clamav files:
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echo ------------------------
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rm -f /var/clamav/*
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echo ----------------------
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echo Update clamAV database
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echo ----------------------
 +
echo
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freshclam -v
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echo -----------------------
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echo Restart freshclam/clamd
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echo -----------------------
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/usr/local/bin/svc -u /service/freshclam/
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/usr/local/bin/svc -u /service/clamd/
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echo ------------------------
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echo Restart qpsmtpd/sqpsmtpd
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echo ------------------------
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/usr/local/bin/svc -u /service/qpsmtpd/
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/usr/local/bin/svc -u /service/sqpsmtpd/
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echo --------------
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echo Check services
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echo --------------
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echo
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service clamd status
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service freshclam status
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service qpsmtpd status
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service sqpsmtpd status
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echo
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echo ----------
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echo check logs
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echo ----------
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echo
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tail -25 /var/log/freshclam/current | tai64nlocal
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echo
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echo -----------------
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echo check directories
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echo -----------------
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echo
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ls -lah /var/clamav/
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echo
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echo -----------------------------------------------------------------------------
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echo To check freshclam, start a new instance of the supervised freshclam service:
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echo -----------------------------------------------------------------------------
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echo
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sv t /service/freshclam
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tail -5 /var/log/freshclam/current | tai64nlocal
 +
 
 +
save by ctrl+x
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chmod +x /usr/bin/refreshclam
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to launch the script
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refreshclam
 +
 
 +
== Method 3 - Deprecated ==
 +
{{Note box|This method is deprecated.
 +
Please use the Freshclam update default script ie refreshclam - see Freshclam update - https://wiki.contribs.org/Clamav:freshclam_update#Freshclam_update}}
 +
 
 +
{{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
Line 17: Line 108:  
  cd /var/clamav
 
  cd /var/clamav
   −
Remove ALL files from folder to provide clean slate for update process
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which showes just 5 files in the /var/clamav folder:
 +
 
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ls -la /var/clamav
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-rw-r--r--  1 clamav clamav    60125 Feb 17 12:11 bytecode.cvd
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srw-rw-rw-  1 clamav clamav        0 Feb 24 14:27 clamd.socket
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-rw-r--r--  1 clamav clamav 52101120 Feb 24 11:46 daily.cld
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-rw-r--r--  1 clamav clamav 30750647 Oct 11  2011 main.cvd
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-rw-------  1 clamav clamav      104 Feb 24 14:46 mirrors.dat
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{{Warning box|if you have limited bandwidth or on a slow connection '''then don't delete''' main.cvd}}
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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)
   Line 25: Line 127:  
  clamav-0.97.6-1.el5.rf
 
  clamav-0.97.6-1.el5.rf
   −
Update clamav to latest version if required '''it will Not downloading clamav-db'''
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Update clamav to latest version if required '''it will Not download clamav-db'''
 
  yum update clamav
 
  yum update clamav
   −
Restart clam
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Restart clamd
 
  service clamd start
 
  service clamd start
   −
Update sigs
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Update signatures
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  freshclam -v (--no-dns can be used if just -v fails tho I haven't struck this issue)
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  freshclam -v (--no-dns can be used if just -v fails)
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Check output from freshclam to make sure update completes sucessfully.
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Check output from freshclam to make sure update completes sucessfully.
    
  Current working dir is /var/clamav
 
  Current working dir is /var/clamav
Line 49: Line 151:  
  bytecode.cvd version from DNS: 214
 
  bytecode.cvd version from DNS: 214
 
  bytecode.cvd is up to date (version: 214, sigs: 41, f-level: 63, builder: neo)
 
  bytecode.cvd is up to date (version: 214, sigs: 41, f-level: 63, builder: neo)
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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.
 +
 +
== Method 4 - Deprecated==
 +
{{Note box|This method is deprecated.
 +
Please use the Freshclam update default script ie refreshclam - see Freshclam update - https://wiki.contribs.org/Clamav:freshclam_update#Freshclam_update}}
 +
 +
This is another method that you can find in [[bugzilla:7406]]
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 +
===The symptom===
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Freshclam update failed
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2013-02-25 08:53:52.875633500 ClamAV update process started at Mon Feb 25 08:53:52 2013
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2013-02-25 08:53:52.876036500 main.cvd is up to date (version: 54, sigs: 1044387, f-level: 60, builder: sven)
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2013-02-25 08:53:53.880007500 WARNING: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.880742500 WARNING: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.881457500 WARNING: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.882180500 WARNING: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.882920500 WARNING: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.883667500 ERROR: getpatch: Can't download daily-16682.cdiff from database.clamav.net
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2013-02-25 08:53:53.914071500 WARNING: Incremental update failed, trying to download daily.cvd
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2013-02-25 08:53:53.914962500 ERROR: Can't download daily.cvd from database.clamav.net
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2013-02-25 08:53:53.915120500 Giving up on database.clamav.net...
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2013-02-25 08:53:53.915137500 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.
 +
===The howTO===
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*Stop qpsmtpd/sqpsmtpd:
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/usr/local/bin/svc -d /service/qpsmtpd/
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/usr/local/bin/svc -d /service/sqpsmtpd/
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*Stop clamAV:
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/usr/local/bin/svc -d /service/freshclam/
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/usr/local/bin/svc -d /service/clamd/
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*Delete all:
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cd /var/clamav
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rm -f /var/clamav/*
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*Update clamAV database
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freshclam -v
 
   
 
   
−
which showed as just 5 files in the /var/clamav folder:
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*Restart qpsmtpd/sqpsmtpd & clamAV:
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/usr/local/bin/svc -u /service/freshclam/
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/usr/local/bin/svc -u /service/clamd/
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/usr/local/bin/svc -u /service/qpsmtpd/
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/usr/local/bin/svc -u /service/sqpsmtpd/
 +
 
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===Verify services ===
 +
 
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*Check services
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service clamd status
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service freshclam status
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service qpsmtpd status
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service sqpsmtpd status
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*Check logs
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tail -25 /var/log/freshclam/current | tai64nlocal
 +
 
 +
*Check directories
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ls -lah /var/clamav/
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   −
  ls -la /var/clamav
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*To check freshclam when services are running, start a new instance of the supervised freshclam service:
−
-rw-r--r--  1 clamav clamav    60125 Feb 17 12:11 bytecode.cvd
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  sv t /service/freshclam
−
srw-rw-rw-  1 clamav clamav        0 Feb 24 14:27 clamd.socket
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tail -5 /var/log/freshclam/current | tai64nlocal
−
-rw-r--r--  1 clamav clamav 52101120 Feb 24 11:46 daily.cld
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−
  -rw-r--r--  1 clamav clamav 30750647 Oct 11  2011 main.cvd
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== Method 5 - Deprecated==
−
-rw-------  1 clamav clamav      104 Feb 24 14:46 mirrors.dat
+
{{Note box|This method is deprecated.
 +
Please use the Freshclam update default script ie refreshclam - see Freshclam update - https://wiki.contribs.org/Clamav:freshclam_update#Freshclam_update}}
 +
 
 +
===a script to launch===
 +
 
 +
  nano /root/clamav-update
   −
{{Note box|if you are bandwidth poor or on slow connection then don't delete main.cvd}}
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past this content
 +
#!/bin/bash
 +
 +
service clamd stop
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rm -f /var/clamav/mirrors.dat
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rm -f /var/clamav/daily.cld
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freshclam -v
 +
service clamd start
   −
For completeness & 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.
+
save it by ctrl+x
   −
[[Category:Howto]]
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chmod +x /root/clamav-update
 +
If you want to launch it
 +
/root/clamav-update
 +
 +
[[Category:Howto]]
RayMitchell
624

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