There is also the $$myhostname variable that can be used to identify “this” host.
> On May 26, 2022, at 12:15, David Lang via rsyslog <rsyslog@lists.adiscon.com> > wrote: > > what I like to do is to format the body of the message as json, I create > $!msg=$msg and then I create a tree $!trusted and in that I add additional > metadata, including $!trusted.relay > > set $.relay = $!trusted.relay; > set $!trusted.relay.last = $.relay; > set $!trusted.relay.host = $hostname; > set $!trusted.relay.last = $!fromhost-ip; > set $!trusted.relay.time = $timegenerated; > > then in the final aggregator, I have all the info I could want about what > relays the log has gone through, when it was proccessed by each relay, etc. > > I also have the sender add additional metadata here as well (if it's reading > from a file , what filename for example) > > David Lang > > On Thu, 26 May 2022, Derek Atkins via rsyslog wrote: > >> Date: Thu, 26 May 2022 13:04:00 -0400 >> From: Derek Atkins via rsyslog <rsyslog@lists.adiscon.com> >> To: Rainer Gerhards <rgerha...@hq.adiscon.com> >> Cc: Derek Atkins <de...@ihtfp.com>, rsyslog-users <rsyslog@lists.adiscon.com> >> Subject: Re: [rsyslog] problems with tls and rsyslog >> Hi Rainer. >> >> Thank you for the reply (even though it's not the answer I was hoping to >> hear). >> >> So I guess the next question is how (or where) to add an identifier for an >> intermediary. >> >> Let's say I have a network that looks like this: >> >> [ Client1 ] --\ >> [ Client2 ] ---+- [ Forwarder1 ] -\ >> [ Client3 ] --/ \ >> +-- [ Aggregator ] >> [ Client4 ] --\ / >> [ Client5 ] ---+- [ Forwarder2 ] -/ >> [ Client6 ] --/ >> >> >> When I see messages at the Aggregator I want to know not only what Client >> it came from, but also what Forwarder it came through. >> >> Right now on the forwarders I change the message to include the client IP >> and Client hostname (using set $!msg), and then send it using an onfwd >> template (note that I have a intermediary variable for fromhost-ip here): >> >> type="string" string="%timegenerated% from:%$fromhost-ip% >> %syslogseverity-text%%$!msg%\n" >> >> At the aggregator I also need to know whether a message came from >> Forwarder1 or Forwarder2, so I would like to add the Forwarder IP and >> hostname to the message that goes up to the aggregator. Right now it uses >> this template for omfile: >> >> type="string" string="%timegenerated% %msg%\n" >> >> Will $hostname and $fromhost-ip on the aggregator be the hostname and ip >> of the forwarder? Or the client? >> >> What would be the best way to include this extra information in my log >> entries? >> >> Thanks, >> >> -derek >> >> On Thu, May 26, 2022 12:31 pm, Rainer Gerhards wrote: >>> unfortunately, this property is not yet available :-( >>> >>> Rainer >>> >>> El jue, 26 may 2022 a las 13:53, Derek Atkins (<de...@ihtfp.com>) >>> escribió: >>>> >>>> Thanks Rainer, >>>> >>>> This is working smashingly! >>>> >>>> The next issue I'm trying to solve is how do I add the client >>>> certificate >>>> information into the log message? I'd like to add e.g. the client >>>> certificate subject (or subjectAltName) into my log template (similar to >>>> how you can add the client hostname or fromhost-ip). >>>> >>>> Again, I am having issues searching, as any combination of "rsyslog" and >>>> "certificate" seems to bring up documentation on "how to configure TLS" >>>> which, obviously, I already know how to do... >>>> >>>> Any help or guidance would be appreciated. >>>> >>>> Thanks, >>>> >>>> -derek >>>> >>>> On Tue, May 17, 2022 4:12 pm, Rainer Gerhards wrote: >>>> > https://www.rsyslog.com/doc/v8-stable/configuration/modules/imtcp.html >>>> > >>>> > https://www.rsyslog.com/doc/v8-stable/configuration/modules/omfwd.html >>>> > >>>> > HTH >>>> > Rainer >>>> > >>>> > Sent from phone, thus brief. >>>> > >>>> > Derek Atkins <de...@ihtfp.com> schrieb am Di., 17. Mai 2022, 22:01: >>>> > >>>> >> Hi, >>>> >> >>>> >> Are there docs on how to set this up on a per-input and/or per-omfwd >>>> >> basis? >>>> >> >>>> >> All the docs I can find suggest setting the global >>>> >> DefaultNetstreamDriver* >>>> >> variables, which in my case are not what I want because I need to be >>>> >> able >>>> >> to use different keys/certs/CAs for the input/imtcp vs the omfwd >>>> >> operations. >>>> >> >>>> >> I am running 8.2204.1. >>>> >> >>>> >> Thanks, >>>> >> >>>> >> -derek >>>> >> >>>> >> On Mon, April 25, 2022 3:03 am, Rainer Gerhards via rsyslog wrote: >>>> >> > Yes, it's possible. Worked on that for quite some time last year >>>> ;-) >>>> >> > >>>> >> > Rainer >>>> >> > >>>> >> > El lun, 25 abr 2022 a las 7:41, Mariusz Kruk via rsyslog >>>> >> > (<rsyslog@lists.adiscon.com>) escribió: >>>> >> >> >>>> >> >> There were some improvements to TLS handling introduced over >>>> several >>>> >> >> versions so you'd have to review the changelog and docs. >>>> >> >> >>>> >> >> But from what I see, the omfwd module supports setting separate >>>> TLS >>>> >> >> key/cert/cacert per action since 8.2108. >>>> >> >> >>>> >> >> The imtcp module also supports setting those on a per-input level >>>> >> since >>>> >> >> 8.2108. >>>> >> >> >>>> >> >> So it should work. >>>> >> >> >>>> >> >> It is always a good idea to do a tcpdump and see how the handshake >>>> >> >> progresses and when and where it fails. >>>> >> >> >>>> >> >> MK >>>> >> >> >>>> >> >> On 24.04.2022 00:35, Shane via rsyslog wrote: >>>> >> >> > Hi I am trying to get rsyslog to receive store/forward messages >>>> w/ >>>> >> tls >>>> >> >> on >>>> >> >> > both sides. >>>> >> >> > >>>> >> >> > client --->tls---> rsyslog --->tls---> remote.something >>>> >> >> > >>>> >> >> > I got it set up so i could send to the rsyslog server but then i >>>> >> >> couldn't >>>> >> >> > add another ca/cert files. My config was using global and >>>> >> >> defaultnetstream >>>> >> >> > >>>> >> >> > I found on rsyslog.com that prior to 8.2202 it couldn't use tls >>>> on >>>> >> two >>>> >> >> > different source/dest. I found the cent 7 repo and got >>>> >> rsyslog-8.2204 >>>> >> >> > installed. Now nothing works. I think i got the config correct >>>> >> but >>>> >> >> the >>>> >> >> > client keeps getting rejected. >>>> >> >> > >>>> >> >> > Apr 23 17:13:39 rlog rsyslogd[11417]: GnuTLS handshake retry >>>> >> returned >>>> >> >> > error: The TLS connection was non-properly terminated. >>>> [v8.2204.0 >>>> >> try >>>> >> >> > https://www.rsyslog.com/e/2083 ] >>>> >> >> > Apr 23 17:13:39 rlog rsyslogd[11417]: netstream session >>>> >> 0x7f6a04013360 >>>> >> >> from >>>> >> >> > 192.168.5.22 will be closed due to error [v8.2204.0 try >>>> >> >> > https://www.rsyslog.com/e/2089 ] >>>> >> >> > >>>> >> >> > So then i tried going to the ossl module. Now its even worse. >>>> My >>>> >> >> config >>>> >> >> > is a mess now too. >>>> >> >> > >>>> >> >> > Does tls on both sides work? >>>> >> >> > Do I need the 8.2202+ version? >>>> >> >> > Do you have an example config? >>>> >> >> > _______________________________________________ >>>> >> >> > rsyslog mailing list >>>> >> >> > https://lists.adiscon.net/mailman/listinfo/rsyslog >>>> >> >> > http://www.rsyslog.com/professional-services/ >>>> >> >> > What's up with rsyslog? Follow https://twitter.com/rgerhards >>>> >> >> > NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by >>>> a >>>> >> >> myriad of sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT >>>> >> POST >>>> >> >> if you DON'T LIKE THAT. >>>> >> >> _______________________________________________ >>>> >> >> rsyslog mailing list >>>> >> >> https://lists.adiscon.net/mailman/listinfo/rsyslog >>>> >> >> http://www.rsyslog.com/professional-services/ >>>> >> >> What's up with rsyslog? Follow https://twitter.com/rgerhards >>>> >> >> NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a >>>> >> myriad >>>> >> >> of sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if >>>> >> you >>>> >> >> DON'T LIKE THAT. >>>> >> > _______________________________________________ >>>> >> > rsyslog mailing list >>>> >> > https://lists.adiscon.net/mailman/listinfo/rsyslog >>>> >> > http://www.rsyslog.com/professional-services/ >>>> >> > What's up with rsyslog? Follow https://twitter.com/rgerhards >>>> >> > NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a >>>> >> myriad >>>> >> > of sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if >>>> you >>>> >> > DON'T LIKE THAT. >>>> >> >>>> >> >>>> >> -- >>>> >> Derek Atkins 617-623-3745 >>>> >> de...@ihtfp.com www.ihtfp.com >>>> >> Computer and Internet Security Consultant >>>> >> >>>> >> >>>> > >>>> >>>> >>>> -- >>>> Derek Atkins 617-623-3745 >>>> de...@ihtfp.com www.ihtfp.com >>>> Computer and Internet Security Consultant >>>> >>> >> >> >> -- >> Derek Atkins 617-623-3745 >> de...@ihtfp.com www.ihtfp.com >> Computer and Internet Security Consultant >> >> _______________________________________________ >> rsyslog mailing list >> https://lists.adiscon.net/mailman/listinfo/rsyslog >> http://www.rsyslog.com/professional-services/ >> What's up with rsyslog? Follow https://twitter.com/rgerhards >> NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a myriad of >> sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if you DON'T >> LIKE THAT. > _______________________________________________ > rsyslog mailing list > https://lists.adiscon.net/mailman/listinfo/rsyslog > http://www.rsyslog.com/professional-services/ > What's up with rsyslog? Follow https://twitter.com/rgerhards > NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a myriad of > sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if you DON'T > LIKE THAT. _______________________________________________ rsyslog mailing list https://lists.adiscon.net/mailman/listinfo/rsyslog http://www.rsyslog.com/professional-services/ What's up with rsyslog? Follow https://twitter.com/rgerhards NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a myriad of sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if you DON'T LIKE THAT.
