[clamav-users] Linode Clam AV Updates

[G.W. Haywood]

Hi there,

On Sat, 20 Mar 2021, Paul Smith via clamav-users wrote:

> On 20/03/2021 04:31, Joel Esler (jesler) via clamav-users wrote:
>> Please check out cvdupdate or Freshclam for your updates.  Once or twice a 
>> day to check is fine.
>> 
> FWIW, running cvdupdate only once or twice a day is a BAD idea.
>
> If you are running a private mirror, then if Freshclam tries to get the 
> latest CDIFF (according to DNS) from the private mirror ...

My understanding is that if you're using a private mirror you're supposed
to set the 'PrivateMirror' option, which does not use DNS to check for the
existence of updated files, but checks the files themselves directly.

Quoting 'man freshclam.conf':

     PrivateMirror STR
 	This option allows you to easily point freshclam to private
 	mirrors. If PrivateMirror is set, freshclam does not attempt
 	to use DNS to determine whether its databases are out-of-date,
 	instead it will use the If-Modified-Since request or directly
 	check the headers of the remote database files.  For each
 	database, freshclam first attempts to download the CLD file.
 	If that fails, it tries to download the CVD file.  This option
 	overrides DatabaseMirror, DNSDatabaseInfo and ScriptedUpdates.
 	It can be used multiple times to provide fall-back mirrors.
 	Default: disabled

-- 

73,
Ged.