Hi,
What if your use of the 'host' command returns NXDOMAIN in you script
this can't usualy be, this command returns the descriptive txt for the current
remote version of libaries.
For example, the current value (inside the curly braces): { current.cvd.clamav.net
descriptive text "0.103.8:62:26814:1676572140:1:90:49192:333" }
Von / From: Paul Netpresto <mailto:p...@netpresto.co.uk>
An / To: Newcomer01 <mailto:newcome...@posteo.de>
Gesendet / Sent: Donnerstag, Februar 16, 2023 um 18:45 (at 06:45 PM) +0100
Betreff / Subject: Re: [clamav-users] Strange Problem when trying update after
reboot (Ubuntu 22.04.1 ClamAV 0.103.6)
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
_______________________________________________
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
