Topics

1

Web Proxy Filtering and Caching / Allowing individual browsers or user-agents?

« on: August 16, 2019, 08:25:49 am »

Hi all,

blocking browser or user-agents using a regex is possible using GUI, but i want also to allow individual user-agents accessing the internet without authentication in the same way. The reason is that some applications are unable to authenticate at the proxy and an URL exception is not an option for this case.

Thanks in advance,
Siegfried

2

19.7 Production Series / Solved: Sensei blocks SNMP

« on: August 07, 2019, 03:26:48 pm »

It seems that the Sensei plugin blocks some SNMP queries via the LAN interface. At the monitoring host SNMP checks (i.e. bandwith usage checks for network interfaces) don't get answers from the firewall box. If i press "Enter Bypass mode" at the status page for the sensei plugin in Opnsense, the checks works fine. But the strange thing is, other SNMP check (query for OID sysDescr.0) works all the time...
Running system is 19.7.2.
Any ideas/hints?

Update: I figured out that the checks works fine if SNMP v1 is used. SNMP packet size for the check was the problem. After reducing the max packet size in the service check configuration the checks are working again with SNMPv2.

3

German - Deutsch / IPsec mit VTI, kein automat. Start bei Datenverkehr

« on: May 27, 2019, 07:52:13 pm »

Guten Abend allerseits,
ich möchte ein Site-2-Site mit VTI aufbauen. Baue ich den Tunnel manuell auf oder setze die Config auf "sofort starten" ist alles schick (also hab ich wohl keine grundsätzlichen Fehler gemacht), aber nur bis der Tunnel dann mal abgebaut wird. Der Tunnel wird nicht automatisch aufgebaut, Anbei die Meldungen dazu (zeitliche Abfolge von oben nach unten):

charon: 15[KNL] received an SADB_ACQUIRE with policy id 2 but no matching policy found
charon: 15[KNL] creating acquire job for policy a.b.c.d/32 === w.x.y.z/32 with reqid {0}
charon: 16[CFG] trap not found, unable to acquire reqid 0

Auf beiden Büchsen läuft 19.1.8, beide zeigen das gleiche Verhalten, Auf der einen ist das einzige Tunnel, auf der anderen laufen noch andere, bisher policy-basierte Tunnel.

Kennt jemand das Problem oder hat eine Idee, wo der Fehler liegt?
Danke vorab,
Siegfried

4

19.1 Legacy Series / [SOLVED] Certificate check wrong result?

« on: March 18, 2019, 12:37:41 pm »

Hello all,

i'm using certificates issued by our internal PKI, all the certs for the boxes are generated with extentedKeyUsage for serverAuth. In the past i was able to make changes in OpenVPN servers. But the GUI is showing me (since update to 19.1.4?) that the cert is not used for server use. So i cannot make any changes in OpenVPN configuration, the GUI is telling me that that "certificate is not intended for server use".
Also a certificate issued by the internal CA is unusable for OpenVPN server (same message)...what's wrong?

Thanks in advance for your help!

5

18.7 Legacy Series / Change OpenVPN kills IPSec tunnels

« on: August 09, 2018, 08:15:27 am »

Hi everybody, every time i change something at the Open VPN servers (or also activate/deactivate the server) there is no longer traffice through the IPSec tunnels at the same box. I have to kill the tunnels and then it's fine again (until the next change at the Open VPN). I've never seen this behavior before, so i think it's possible new since 18.7.