[clamav-users] Yet another synchronization failure!

Joel Esler (jesler) jesler at cisco.com
Wed Jul 18 17:27:58 EDT 2018


Let me look into troubleshooting this. I am working with Cloudflare on this constantly. 

Sent from my iPhone

> On Jul 18, 2018, at 15:38, Paul Kosinski <clamav-users at iment.com> wrote:
> 
> A few days ago, I programmed some pre-tests so as to avoid running
> freshclam until *both* the DNS TXT record and the first few bytes of
> daily.cvd (obtained via curl) agree that there is a new version which
> *actually* is available for download via freshclam.
> 
> It turns out that doesn't cover all the possible mis-synchronizations.
> 
> Today, my tests showed the new daily.cvd was indeed available (and
> freshclam downloaded it), but the new bytecode.cvd wasn't *really*
> available, so freshclam reported overall failure. Worse yet, the curl
> test on bytecode.cvd says that the new one still isn't available one
> hour later.
> 
> Our enhanced log follows. It shows that daily.cvd #24761 became
> available by 14:18 (EDT), but bytecode.cvd #325 was *not* really
> available even though the DNS TXT records said it was, and it still
> wasn't really available at 15:18 (or even now, at 15:30).
> 
> I guess I'll have to enhance my pre-test to demand that *all* of
> daily.cvd, bytecode.cvd and main.cvd pass the curl tests before
> invoking freshclam. (Today, this would *any* updating even more.)
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 14:03:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  DNS  D 24760/24760  B 324/324  M 58/58
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 14:18:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  UPD  D 24761/24761/24760  B 324/325/324  M 58/58/58
> 
>  /opt/clamav/bin/freshclam -v --stdout --on-update-execute=EXIT_1
>  Current working dir is /opt/clamav.d/clamav.0.100.1/share/clamav
>  Max retries == 1
>  ClamAV update process started at Wed Jul 18 14:18:04 2018
>  Using IPv6 aware code
>  Querying current.cvd.clamav.net
>  TTL: 1798
>  Software version from DNS: 0.100.1
>  main.cvd version from DNS: 58
>  main.cvd is up to date (version: 58, sigs: 4566249, f-level: 60, builder: sigmgr)
>  daily.cvd version from DNS: 24761
>  Retrieving http://database.clamav.net/daily.cvd
>  Using ip '10.11.14.160' for fetching.
>  Trying to download http://database.clamav.net/daily.cvd (IP: 104.16.187.138)
>  Downloading daily.cvd [100%]
>  Loading signatures from daily.cvd
>  Properly loaded 2017974 signatures from new daily.cvd
>  daily.cvd updated (version: 24761, sigs: 2017974, f-level: 63, builder: neo)
>  Querying daily.24761.92.1.0.6810BB8A.ping.clamav.net
>  bytecode.cvd version from DNS: 325
>  Retrieving http://database.clamav.net/bytecode.cvd
>  Using ip '10.11.14.160' for fetching.
>  Trying to download http://database.clamav.net/bytecode.cvd (IP: 104.16.187.138)
>  Downloading bytecode.cvd [100%]
>  WARNING: Mirror 104.16.187.138 is not synchronized.
>  Querying bytecode.0.92.0.0.6810BB8A.ping.clamav.net
>  Giving up on database.clamav.net...
>  Update failed. Your network may be down or none of the mirrors listed in /opt/clamav.d/clamav.0.100.1/etc/freshclam.conf is working. Check https://www.clamav.net/documents/official-mirror-faq for possible reasons.
> 
>  /opt/clamav/bin/freshclam --list-mirrors
> 
>  Mirror #1
>  IP: 104.16.187.138
>  Successes: 6
>  Failures: 1
>  Last access: Wed Jul 18 14:18:13 2018
>  Ignore: Yes
>  -------------------------------------
>  Mirror #2
>  IP: 104.16.189.138
>  Successes: 4
>  Failures: 0
>  Last access: Sun Jul 15 10:48:05 2018
>  Ignore: No
>  -------------------------------------
>  Mirror #3
>  IP: 104.16.188.138
>  Successes: 5
>  Failures: 0
>  Last access: Mon Jul 16 17:48:04 2018
>  Ignore: No
>  -------------------------------------
>  Mirror #4
>  IP: 104.16.185.138
>  Successes: 5
>  Failures: 0
>  Last access: Mon Jul 16 09:48:04 2018
>  Ignore: No
>  -------------------------------------
>  Mirror #5
>  IP: 104.16.186.138
>  Successes: 5
>  Failures: 0
>  Last access: Tue Jul 17 01:33:06 2018
>  Ignore: No
> 
>  ------------------------------  Wednesday 18 July 2018 at 14:18:13  ------------------------------
> 
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 14:33:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  EXT  D 24761/24761/24761  B 324/325/324  M 58/58/58
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 14:48:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  EXT  D 24761/24761/24761  B 324/325/324  M 58/58/58
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 15:03:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  EXT  D 24761/24761/24761  B 324/325/324  M 58/58/58
> 
> 
>  ------------------------------  Wednesday 18 July 2018 at 15:18:01  ------------------------------
> 
>  /opt/clamav/bin/testclam-external
>  -->  EXT  D 24761/24761/24761  B 324/325/324  M 58/58/58
> 
> 
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> 
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