Login or Register to Ask a Question and Join Our Community


AIX

UNIX - AIX - Syslog messages

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems AIX UNIX - AIX - Syslog messages
# 8  
Old 06-29-2015
Thank you everybody for your time and effort to help me. I believe that I now get it.

Mostly thank you bakunin, for the clarification of how syslog operates. That was also my estimation of how this daemon works, but after your comment I get it.

As a side-note, I think that the best way to continue with my assessment, as far as syslog is concerned, is to check for some critical services (e.g. login) in which message category they store what kind of messages.
# 9  
Old 07-08-2015
If you want to know what applications are posting some 'wildcard' entries can help with that.
Below I have commented out all applications at 'debug' level - which is everything. Instead I collect everything at info level - except for local4 (which is used by ipsec logging) - I leave that one at debug level.

Code:
# *.debug;local4.none   /var/log/syslog/blockip.log 
*.info;local4.none      /var/log/syslog/blockip.log 
local4.debug    /var/log/syslog/local4.log

Looking at the combined log you can see which facility is concerned, as well as the severity of the message. From this you can decide how to accommodate different facilities in separate files and/or with differing severity.
Code:
michael@x071:[/var/log/syslog]tail blockip.log
Jul  8 09:00:00 x071 mail:warn|warning sendmail[8913086]: gethostbyaddr(IPv6:::1) failed: 1
Jul  8 09:00:00 x071 mail:info sendmail[8913086]: t689004j8913086: from=daemon, size=1131, class=0, nrcpts=1, msgid=<201507080900.t689004j8913086@aixtools.com>, relay=root@localhost
Jul  8 09:00:00 x071 mail:info sendmail[9371720]: t689004j8913086: to=michael, ctladdr=daemon (1/1), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=121131, dsn=2.0.0, stat=Sent
Jul  8 09:00:10 x071 user:info syslog: /etc/ifconfig -a
Jul  8 09:00:28 x071 auth|security:info sshd[5964030]: Accepted publickey for michael from 192.168.129.5 port 64940 ssh2: DSA SHA256:eOZ7yejpirXRJDLw99kR2AzZzuj/o/KNJGd9r70EHds
Jul  8 09:04:57 x071 mail:info pop3d[9109536]: Moved 1407 bytes of new mail to /home/michael/mbox from /var/spool/mail/michael host= x005.home.local [192.168.129.5]
Jul  8 09:04:57 x071 mail:info pop3d[9109536]: Auth user=michael host=x005.home.local [192.168.129.5] nmsgs=1/1
Jul  8 09:04:57 x071 mail:info pop3d[9109536]: Logout user=michael host=x005.home.local [192.168.129.5] nmsgs=0 ndele=1
Jul  8 09:09:33 x071 auth|security:crit su: BAD SU from michael to root at /dev/pts/1
Jul  8 09:09:38 x071 auth|security:notice su: from michael to root at /dev/pts/1

Finally, an easy way to know how syslog is currently running is the command
Code:
michael@x071:[/var/log/syslog]lssrc -s syslogd -l

With, e.g., the following result
Code:
Subsystem         Group            PID          Status 
 syslogd          ras              3407976      active
Syslogd Config   *.info;local4.none     /var/log/syslog/blockip.log  
Syslogd Config   local4.debug   /var/log/syslog/local4.log  
Syslogd Config   local1.debug   /var/log/syslog/local1.log  
Syslogd Config   user.warn      /var/log/httpd/rootvg/user.log 
Syslogd Config   mail.info      /var/log/syslog/mail.log rotate size 250k files 4 
Syslogd Config   aso.notice /var/log/aso/aso.log rotate size 1m files 8 compress 
Syslogd Config   aso.info /var/log/aso/aso_process.log rotate size 1m files 8 com 
Syslogd Config   aso.debug /var/log/aso/aso_debug.log rotate size 32m files 8 com
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

Cannot send syslog event from AIX 6.1 to RHEL Syslog server

Hi everyone, I am trying to configure AIX 6.1 using syslogd to send syslog event to syslog server configured on RHEL. However, RHEL never receives the events. I have tried to redirect the syslog event on AIX to a local file and successful. Only forwarding to remote server fails. Firewall... (10 Replies)
Discussion started by: michael_hoang
10 Replies

2. AIX

AIX Syslog where the hostname sit

Dear all experts, I would like to know where can I find the hostname located as when I receive the syslog, I can only see as below : (showing in localhost instead of the hostname) Feb 6 15:31:31 localhost syslog:info syslogd: restart Feb 6 15:31:50 localhost syslog:info syslogd: restart Feb... (13 Replies)
Discussion started by: kwliew999
13 Replies

3. AIX

I see some errors in syslog files in AIX. can these be ignored ?

Hello, Could you please check the below errors. I found these errors in AIX LPAR syslogs. auth|security:err|error sshd error: Could not load host key: /etc/ssh/ssh_host_ecdsa_key daemon:err|error syslog: slp: 0660-059 Impossible to get local interface for distant address 10.x.x.x. errno... (2 Replies)
Discussion started by: Kumar7997
2 Replies

4. AIX

Get Next month in AIX from curent date in unix AIX

How could we derive teh Next month in MON-RR format from current date ie sysdate in UNI AIX sheel script.I coould get a command but i supports only inLinux susse andnotin AIX. I need for Unix AIX.Pls Help. Regards Shiv (2 Replies)
Discussion started by: SHIV75
2 Replies

5. AIX

Forwarding AIX syslog/errorlog to remote SQL DB

Due to a project I'm currently tasked with I'm spending my time trying to find a way to forward the syslog to a remote, in this case Red Hat, server and squeezing it into a SQL DB. Rsyslog is doing this job quite nicely for most of our test-servers, but I couldn't find any reliable information on... (1 Reply)
Discussion started by: Skleindl
1 Replies

6. AIX

AIX Syslog login/logout User

Hi, i'm trying to configure /etc/syslog.conf for log user access. In debian i add: auth,authpriv.* @serverName I don't know the correct Aix syntax for syslog :( My @serverName get the log successfully.. I need to log correct/incorrect login attempts. Thanks (5 Replies)
Discussion started by: hankBuck
5 Replies

7. AIX

AIX auto delete old mail messages

We have had an issue where the mail file filled up. Is there a setting in sendmail.cf to automatically remove old emails? Say after 14 days. If not is there any way automatically to delete older mail files?? (1 Reply)
Discussion started by: daveisme
1 Replies

8. Solaris

which is the best unix? solaris? aix ? hp-unix?

which is the best unix? solaris? aix ? hp-unix? I want to study unix system ? Anyone tell me which is the best? (2 Replies)
Discussion started by: mac2008
2 Replies

9. AIX

AIX 5.2 Syslog : Help needed

Hi all, I am trying to get the authentication logs of FTP,Telnet,SSH,inetd from the syslog file. But my output for every type of authentications - success & failure keep differing everytime i view them. The output does not show the priority code (emerg, or 0, in any case). How do I get the... (0 Replies)
Discussion started by: kamadana
0 Replies

10. UNIX for Dummies Questions & Answers

system messages log (Sun and AIX)

Hello, I need a few explanation about the log files for system messages: /var/adm/messages and /var/log/syslog. As /var/adm/messages is empty on my machine, i need help. First, i would like to know what the difference between these 2 files is? Do they contain different kinds of system... (3 Replies)
Discussion started by: VeroL
3 Replies
Login or Register to Ask a Question