Re: Fail2ban no longer working

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Hi,

I don't use mail notification, but the jail creation is being logged and I've tested it.

Have you tried reducing the number of jails? I'd try it with only one jail and do a real test (eg. enter the password for a fake account or whatever applies).

Daniel

On 31 August 2017 21:50:48 GMT+02:00, Roger Grosswiler <roger@xxxxxxxx> wrote:
hi,

thanks, yes i saw the bug, even if its quite old. i didnt find where to change that number.

i have 7 jails, none of them is starting, just one main thread, which does not seem to be a jail.

the service is running as yours does. but there is no jail at all, i think, as i get no mail notification about any jail.

i use mail notification, do you?

Am 31. August 2017 21:05:50 MESZ schrieb Daniel Laczi <daniell1@xxxxxxxxxxx>:

Hi,

Mine works fine:

● fail2ban.service - Fail2Ban Service
   Loaded: loaded (/usr/lib/systemd/system/fail2ban.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2017-06-27 23:46:09 CEST; 2 months 4 days ago
     Docs: man:fail2ban(1)
  Process: 698 ExecStart=/usr/bin/fail2ban-client -x start (code=exited, status=0/SUCCESS)
 Main PID: 977 (fail2ban-server)
    Tasks: 3 (limit: 4915)
   CGroup: /system.slice/fail2ban.service
           └─977 /usr/bin/python3 -s /usr/bin/fail2ban-server -s /var/run/fail2ban/fail2ban.sock -p /var/run/fail2ban/fail2ban.pid -x -b

Jun 27 23:45:50 servername systemd[1]: Starting Fail2Ban Service...
Jun 27 23:46:06 servername fail2ban-client[698]: 2017-06-27 23:46:06,491 fail2ban.server         [924]: INFO    Starting Fail2ban v0.9.7
Jun 27 23:46:06 servername fail2ban-client[698]: 2017-06-27 23:46:06,508 fail2ban.server         [924]: INFO    Starting in daemon mode
Jun 27 23:46:09 servername systemd[1]: Started Fail2Ban Service.

Same kernel.

However I have only one jail. How many jails do you have? Does it start if you reduce the number of jails? Have you seen this: https://github.com/fail2ban/fail2ban/issues/969 Unfortunately the bug is still open...

Daniel
Am 31.08.2017 um 07:55 schrieb Roger Grosswiler:

Hello,

Release: Linux stbarth 4.12.8-300.fc26.armv7hl #1 SMP Thu Aug 17 18:39:25 UTC 2017 armv7l armv7l armv7l GNU/Linux

Fail2ban: fail2ban.noarch  0.9.7-2.fc26

...and some logs...


Aug 31 07:53:55 stbarth systemd[1]: Started Fail2Ban Service.
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:55 stbarth fail2ban-client[2887]: ERROR  NOK: ("can't start new thread",)
Aug 31 07:53:51 stbarth fail2ban-client[2887]: 2017-08-31 07:53:51,542 fail2ban.server         [2888]: INFO    Starting in daemon mode
Aug 31 07:53:51 stbarth fail2ban-client[2887]: 2017-08-31 07:53:51,540 fail2ban.server         [2888]: INFO    Starting Fail2ban v0.9.7
Aug 31 07:53:48 stbarth systemd[1]: Starting Fail2Ban Service...

Thanks!

Roger

 

Am 2017-08-30 16:17, schrieb Peter Robinson:

On Wed, Aug 30, 2017 at 3:12 PM, Roger Grosswiler <roger@xxxxxxxx> wrote:
Hi,

is someone else experiencing problems? with fail2ban and systemd?

Mine doesn't start the jails, client itself is running. Log says, it cannot
create a separate child per jail.

What release/version?
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