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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