You were using curl (I did remember that after I posted as I'd helped you sort out curl options to do what you wanted) to explore what was available on the servers compared to what was on the DNS TXT record, and that was outside process. It also ignored cdiff files that may have been available in a version that matched the TXT record. The purpose of the cdiff files is to cut down on bandwidth.


On 12/10/18 6:34 PM, Paul Kosinski wrote:
We ARE using freshclam to perform the actual update. And always have

We've only been using curl (not wget, if that matters) to pull the first
few bytes of the cvd to see if its version number matches what the DNS
TXT query said.

We do this because, after the conversion to Cloudflare, we were getting
lots of FAILURES where *freshclam* said things were out of sync (and
eventually disabled all the mirrors).

And we have recently seen that our Web server sometimes can get the new
updates (from IAD) *hours* before our main LAN does (from BOS).

P.S. It's been quite frustrating getting some replies seemingly based on
assumptions that we are doing things we shouldn't, when we aren't in
fact doing those things. (Like not using freshclam.)

On Mon, 10 Dec 2018 16:46:42 -0800
Dennis Peterson <> wrote:

Exactly right. We can't be blaming the ClamAV process when we don't
use the ClamAV process. People that don't use freshclam should have
no expectation of high reliability. In fact any expectations are
baseless when the wrong tools are employed.


On 12/9/18 5:44 AM, Joel Esler (jesler) wrote:
As it should be.  No one should be downloading the daily and main,
(although thousands are), cdiffs were created for a reason.

Sent from my  iPhone

On Dec 9, 2018, at 06:58, Eric Tykwinski <>

  From back in archives, I think he’s using wget to just pull the
files, but freshclam would just pull the cdiffs and keep you up to
date on the next check.
clamav-users mailing list

Help us build a comprehensive ClamAV guide:

clamav-users mailing list

Help us build a comprehensive ClamAV guide:

Reply via email to