Re: [clamav-users] freshclam not working

Tue, 12 Sep 2023 14:11:38 -0700

Curl won’t work at all.  

But it definitely points to a dns problem. 
— 
Sent from my iPhone

On Sep 11, 2023, at 13:07, Serge Slivitzky via clamav-users <clamav-users@lists.clamav.net> wrote:


  Hi all,

I'm using clamav on 2 systems built the same way: the first one is behind a firewall and freshclam is not working, the other one is using a proxy to connect to the internet and freshclam is working.

For the system not working, I get this in the log:

Mon Sep 11 09:09:02 2023 -> ^remote_cvdhead: Download failed (6) Mon Sep 11 09:09:02 2023 -> ^ Message: Couldn't resolve host name
Mon Sep 11 09:09:02 2023 -> ^Failed to get daily database version information from server: https://database.clamav.net
Mon Sep 11 09:09:02 2023 -> !check_for_new_database_version: Failed to find daily database using server https://database.clamav.net.
Mon Sep 11 09:09:02 2023 -> *updatedb: daily database update failed.
Mon Sep 11 09:09:02 2023 -> Trying again in 5 secs...
Mon Sep 11 09:09:07 2023 -> *check_for_new_database_version: Local copy of daily found: daily.cld.
Mon Sep 11 09:09:07 2023 -> Trying to retrieve CVD header from https://database.clamav.net/daily.cvd
* Could not resolve host: database.clamav.net
* Closing connection 0
Mon Sep 11 09:09:07 2023 -> !remote_cvdhead: Download failed (6) Mon Sep 11 09:09:07 2023 -> ! Message: Couldn't resolve host name
Mon Sep 11 09:09:07 2023 -> ^Failed to get daily database version information from server: https://database.clamav.net
Mon Sep 11 09:09:07 2023 -> !check_for_new_database_version: Failed to find daily database using server https://database.clamav.net.
Mon Sep 11 09:09:07 2023 -> *updatedb: daily database update failed.
Mon Sep 11 09:09:07 2023 -> Giving up on https://database.clamav.net...
Mon Sep 11 09:09:07 2023 -> !Update failed for database: daily
Mon Sep 11 09:09:07 2023 -> !Database update process failed: HTTP GET failed
Mon Sep 11 09:09:07 2023 -> !Update failed.

I checked with my firewall guy that port 53 was open udp and tcp and he said yes.

I checked with the faq and dns resolution is working and also the dig command:

/tmp# nslookup database.clamav.net
Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
database.clamav.net     canonical name = database.clamav.net.cdn.cloudflare.net.
Name:   database.clamav.net.cdn.cloudflare.net
Address: 104.16.219.84
Name:   database.clamav.net.cdn.cloudflare.net
Address: 104.16.218.84
Name:   database.clamav.net.cdn.cloudflare.net
Address: 2606:4700::6810:db54
Name:   database.clamav.net.cdn.cloudflare.net
Address: 2606:4700::6810:da54


; <<>> DiG 9.16.1-Ubuntu <<>> @ns1.clamav.net db.us.big.clamav.net
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 63233
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;db.us.big.clamav.net.          IN      A

;; Query time: 104 msec
;; SERVER: 193.28.86.61#53(193.28.86.61)
;; WHEN: Mon Sep 11 09:19:06 EDT 2023
;; MSG SIZE  rcvd: 49

With curl, the download is partial:

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  4899    0  4899    0     0   199k      0 --:--:-- --:--:-- --:--:--  199k

Anyone have an idea on what could be my problem?

Thanks in advance,

Serge

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