[clamav-users] Strange Problem when trying update after reboot (Ubuntu 22.04.1 ClamAV 0.103.6)

newcomer01 newcomer01 at posteo.de
Thu Feb 16 17:23:35 UTC 2023 

yes, unfortunately i use the ClamAV (0.103.6) which are available for Ubuntu 22.04. 1 LTS
Please try so simple as possible to explain what this code should do and for what i need to run?
> % ls -ld /etc/systemd/system/multi-user.target.wants/clamav-freshclam.service /lib/systemd/system/clamav-freshclam.service
> lrwxrwxrwx 1 root root  44 Jun 23  2018 /etc/systemd/system/multi-user.target.wants/clamav-freshclam.service -> /lib/systemd/system/clamav-freshclam.service
> -rw-r--r-- 1 root root 412 Aug 21 21:28 /lib/systemd/system/clamav-freshclam.service
kind regards
Marc


Von / From: Matus Uhlar - Fantomas <mailto:uhlar at fantomas.sk>
An / To: Newcomer01 <mailto:newcomer01 at posteo.de>
Gesendet / Sent: Donnerstag, Februar 16, 2023 um 16:47 (at 04:47 PM) +0100
Betreff / Subject: Re: [clamav-users] Strange Problem when trying update after reboot (Ubuntu 22.04.1 ClamAV 0.103.6)
> On 16.02.23 15:13, newcomer01 via clamav-users wrote:
>> i know, i have asked the same thing before some weeks.
>> But i will post this again.
>> When i fresh reboot my Ubuntu 22.04.1 at morning my script test at first if dns is available and only if it is, it starts the download from clamav sig-files.
>> But when i do this, i got this error messages:
>>
>>> Thu Feb 16 08:06:11 2023 -> ClamAV update process started at Thu Feb 16 08:06:11 2023
>>> Thu Feb 16 08:06:11 2023 -> WARNING: Can't query current.cvd.clamav.net
>>> Thu Feb 16 08:06:11 2023 -> WARNING: Invalid DNS reply. Falling back to HTTP mode.
>>> Thu Feb 16 08:06:11 2023 -> Trying to retrieve CVD header from https://database.clamav.net/daily.cvd
>>> Thu Feb 16 08:06:11 2023 -> WARNING: remote_cvdhead: Download failed (6) Thu Feb 16 08:06:11 2023 -> WARNING:  Message: Couldn't resolve host name
>>> Thu Feb 16 08:06:11 2023 -> WARNING: Failed to get daily database version information from server: https://database.clamav.net
>>> Thu Feb 16 08:06:11 2023 -> ERROR: check_for_new_database_version: Failed to find daily database using server https://database.clamav.net.
>>> Thu Feb 16 08:06:11 2023 -> Trying again in 5 secs...
>>> Thu Feb 16 08:06:16 2023 -> Trying to retrieve CVD header from https://database.clamav.net/daily.cvd
>>> Thu Feb 16 08:06:16 2023 -> WARNING: remote_cvdhead: Download failed (6) Thu Feb 16 08:06:16 2023 -> WARNING:  Message: Couldn't resolve host name
>>> Thu Feb 16 08:06:16 2023 -> WARNING: Failed to get daily database version information from server: https://database.clamav.net
>>> Thu Feb 16 08:06:16 2023 -> ERROR: check_for_new_database_version: Failed to find daily database using server https://database.clamav.net.
> this looks like the DNS lookups are not vailable, no matter what your check
> says.
>
>>> Thu Feb 16 08:06:16 2023 -> Trying again in 5 secs...
>>> Thu Feb 16 08:06:21 2023 -> Trying to retrieve CVD header from https://database.clamav.net/daily.cvd
>>> Thu Feb 16 08:06:21 2023 -> OK
>>> Thu Feb 16 08:06:21 2023 -> daily database available for download (remote version: 26813)
>>> Thu Feb 16 08:06:30 2023 -> Testing database: '/var/lib/clamav/tmp.a828aef201/clamav-83875921b32bc900edab2d0ee431fcad.tmp-daily.cvd' ...
>>> Thu Feb 16 08:06:37 2023 -> Database test passed.
>>> Thu Feb 16 08:06:37 2023 -> daily.cvd updated (version: 26813, sigs: 2020949, f-level: 90, builder: raynman)
>>> Thu Feb 16 08:06:37 2023 -> Trying to retrieve CVD header from https://database.clamav.net/main.cvd
>>> Thu Feb 16 08:06:37 2023 -> OK
>>> Thu Feb 16 08:06:37 2023 -> main database available for download (remote version: 62)
>>> Thu Feb 16 08:07:04 2023 -> Testing database: '/var/lib/clamav/tmp.a828aef201/clamav-35347411896e0523e7b74f2c91338b97.tmp-main.cvd' ...
>>> Thu Feb 16 08:07:10 2023 -> Database test passed.
>>> Thu Feb 16 08:07:10 2023 -> main.cvd updated (version: 62, sigs: 6647427, f-level: 90, builder: sigmgr)
>>> Thu Feb 16 08:07:10 2023 -> Trying to retrieve CVD header from https://database.clamav.net/bytecode.cvd
>>> Thu Feb 16 08:07:10 2023 -> OK
>>> Thu Feb 16 08:07:10 2023 -> bytecode database available for download (remote version: 333)
>>> Thu Feb 16 08:07:11 2023 -> Testing database: '/var/lib/clamav/tmp.a828aef201/clamav-2f58bc478b2afd84ba98c4d288a63ac1.tmp-bytecode.cvd' ...
>>> Thu Feb 16 08:07:11 2023 -> Database test passed.
>>> Thu Feb 16 08:07:11 2023 -> bytecode.cvd updated (version: 333, sigs: 92, f-level: 63, builder: awillia2)
>>> Thu Feb 16 09:46:56 2023 -> --------------------------------------
> there seems to be no issue further.
>
>> Is there another way to solve the issue?
>> Current i have set an sleep 60 to work arround.
> do you use clamav that comes with ubuntu?
>
> try running:
>
> % ls -ld /etc/systemd/system/multi-user.target.wants/clamav-freshclam.service /lib/systemd/system/clamav-freshclam.service
> lrwxrwxrwx 1 root root  44 Jun 23  2018 /etc/systemd/system/multi-user.target.wants/clamav-freshclam.service -> /lib/systemd/system/clamav-freshclam.service
> -rw-r--r-- 1 root root 412 Aug 21 21:28 /lib/systemd/system/clamav-freshclam.service
>
> the clamav-freshclam.service should contain the line
> "After=network-online.target"
>
>
>
>> This is the first act of my script before I try to download signatures:
>>
>>>          if [ "$(host -W 60 -t TXT "current.cvd.clamav.net")" != "" ]; then
>>>
>>>              # standardwert fuer libs update std - 2
>>>              LIBS_UPD_STD="2"
>>>
>>>              # standardwert fuer libs uli std - 5
>>>              LIBS_ULI_STD="5"
>>>
>>>              # update anstossen - 1 oder 0
>>>              START_FRESHCLAM="1"
>>>
>>>              # setze wert fuer netzwerkverbindung - 0 nicht vorhanden, 1 vorhanden
>>>              NETZWERK_VORHANDEN="1"
>>>
>>>          # falls nicht innerhalb von xx sekunden der descriptive txt geholt werden kann
>>>          elif [ "$(host -W 60 -t TXT "current.cvd.clamav.net")" = "" ]; then
>>>
>>>              # standardwert fuer libs update std - 2
>>>              LIBS_UPD_STD="2"
>>>
>>>              # standardwert fuer libs uli std - 5
>>>              LIBS_ULI_STD="5"
>>>
>>>              # update anstossen - 1 oder 0
>>>              START_FRESHCLAM="0"
>>>
>>>              # setze wert fuer netzwerkverbindung - 0 nicht vorhanden, 1 vorhanden
>>>              NETZWERK_VORHANDEN="0"
>>>
>>>          fi
>> and only when "$NETZWERK_VORHANDEN" -eq "1" (NETZWERK_VORHANDEN is german = NETWORK_AVAILABLE) I start update (what is this time), but it seems that clamav CDN have a problem in case.
>> But why?
>> My code checks if dns from current.cvd.clamav.net  is available and starts, but freshclam says can't resolve host name.
>>
>> kind regards
>> Marc
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