Hi
it would appear your calling your script before the network and dns are
up and working.
What if your use of the 'host' command returns NXDOMAIN in you script .
Paul
On 16/02/2023 17:23, newcomer01 via clamav-users wrote:
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:uh...@fantomas.sk>
An / To: Newcomer01 <mailto:newcome...@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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_______________________________________________
Manage your clamav-users mailing list subscription / unsubscribe:
https://lists.clamav.net/mailman/listinfo/clamav-users
Help us build a comprehensive ClamAV guide:
https://github.com/Cisco-Talos/clamav-documentation
https://docs.clamav.net/#mailing-lists-and-chat
_______________________________________________
Manage your clamav-users mailing list subscription / unsubscribe:
https://lists.clamav.net/mailman/listinfo/clamav-users
Help us build a comprehensive ClamAV guide:
https://github.com/Cisco-Talos/clamav-documentation
https://docs.clamav.net/#mailing-lists-and-chat
