Server :: Bug Installation Syslog-ng In Centos 5.6
Jun 1, 2011
I tried to install Syslog-ng-3.2.4 in Centos 5.6,when i need to start the deamon syslog-ng =>Failure and i have this message:
Code: [root@RelaisXXX etc]# service syslog-ng start Starting syslog-ng: Your configuration file uses an obsoleted keyword, please up Your configuration file uses an obsoleted keyword, please update your configurat
Error creating persistent state file; filename='/usr/local/var/syslog-ng.persist Starting Kernel Logger [FAILED]:
I open "man vsftpd.conf", it says syslog_enable If enabled, then any log output which would have gone o /var/log/vsftpd.log goes to the system log instead. Logging is done under the FTPD facility. Default: NO So I add "syslog_enable=YES" to the /etc/vsftpd.conf, and add "ftpd.* /var/log/ftplog" into /etc/syslog.conf. But there is no log infomation in the ftplog file.
I am looking for an open source syslog server which accumulate the each and every log of Windows, Solaris, Linux and network devices. Currently I am using Syslog-ng which is not fulfiling my requirement in Windows clients, as I need the logs of every action which user performed after logon.
I have a dual-processor x86 box with CentOS 5 Linux 2.6.18-238.19.1.el5, mysql Ver 14.12 Distrib 5.0.77, and tons of storage space. I want to run a syslog solution on this box for a SOHO infrastructure. We've got routers, switches, Windows servers, other Linux boxes, etc. I've looked at syslog-ng, but it seems rather overkill, but I like the idea of storing logs in a MySql database. Is there anything I can yum install?
OS CentOS 5.4 I have a DNS server that is logging all named and dns requests to the chrooted named directory. By default named logs to /var/log/messages but I want to isolate all the dns queries and requests to separate files. I know I can add entries to /etc/syslog.conf to "roll" the logs and logrotate should pick them up but fuzzy as to the syntax. I don't know what "tag" to use in the first fieild. for example
# Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none/var/log/messages
wants to remove everything else that (presumably) has syslog as a dependency. how do I replace the dependency on syslog with a dependency on syslog-ng?
I installed syslog-ng-3.0.3-1.rhel5.i386.rpm and at first blush it appears to be working fine to /var/log/messages. However it doesn't seem to be doing any other ancillary logging as defined in syslog-ng.conf (I've had to mod /etc/init.d/syslog-ng to look in /etc). e.g.
I am thinking about installing rsyslog using yum, but I only want to try it out first and don't want to create conflicts and problems that will be hard to revert. When I ask yum on CentOS 5 about rsyslog, I get this (note much older version - it's too bad that even the latest STABLE rsyslog isn't in the repository):
I've just configured my Linksys RVS-4000 router to syslog messages to remote syslogd server (i.e. my CentOS5 machine). Redirecting messages was easy, but now I'm having difficulties to redirect those same messages received from Linksys to a separate log file. By default, all these messages are logged to /var/log/messages, and after browsing manual pages for syslog, syslog.conf, and syslogd, came to suspect that what I want isn't possible.
I installed syslog-ng so I can receive remote logs. this is working however since I disabled syslog on my syslog-ng server I am not logging in /var/log/messages cron and some others.locally)I know this is because my syslog-ng.conf only references remote and not local.How can I edit the syslog-ng.conf file so that I can receive remote and local? I tried this however when adding in portions of the default config, I only receive local and not remote logs anymore. I am forwarding my config.
# syslog-ng configuration file. # # This should behave pretty much like the original syslog on RedHat. But
Im trying to get syslog-ng to log ssh stuff to a own file (later i want it to be forwarded to a other server but thats a later problem.
The thing is that if i restart my syslog-ng server and login with ssh, it logs it. but when i login again it dont. But if i restart the syslog-ng daemon again it logs again, but only once.
I noticed in my system that my root partition is getting full. I found a lot of old compacted syslogfiles. Had a look at etc/sysconfig editor eg cron but could not find a setting which allows to delete files older than a month. Where and how could I influence this ? I deleted manually all syslog files older than a month. Approx 6GB
I�m installing fail2ban to improve the security of a home asterisk server which from time to time becomes the target of some sip account cracker and/or ssh brute force attack.For those not familiar with fail2ban, this utility monitors log files to find matches with user specified expressions to identify the presence of a brute force attack. Then configures iptables rules to block the offending IP.Here�s an example:
Code: NOTICE[1734] chan_sip.c: Registration from '"613"<sip:613@xx.xxxx.xxx.xxx>' failed for 'yyy.yyy.yyyy.yyy' - No matching peer found
I'm guessing its possible but I can't seem to find any documentation on how to do this.I've tried playing with entries at the top of my syslog.conf file like:
*.* @172.20.10.1 # 1 server, works file *.* @172.20.10.1,172.20.20.11 # doesn't work *.* @172.20.10.1 172.20.20.11 # nor this *.* @172.20.10.1,@172.20.20.11 # nor this *.* @172.20.10.1 @172.20.20.11 # nor this
I would expect this behavior if "domain.com and anotherdomain.com" wasn't a domain that I hosted. But this is a valid domain that this server should be answering for. In my named.conf I do have the
Quote:
allow-query { any; };
option on every zone. This is my slave server and I have the primary shut off so I can test this slave server. FYI: So far queriers still seem to be working. The pages for the sites are still coming up via the internet.
Can syslog be used to "watch" other log-Files from other software? I would like to get an info in messages if a logfile of squid is changed/something is added.
In my system, I see two syslog configuration files, /etc/rsyslog.conf and /etc/syslog.conf.. What is the use of each file? I know only that of /etc/syslog.conf...how about /etc/rsyslog.conf? what is its use?
We have several SLES, CentOS, Fedora server and use logmail to filter the logs on our central syslog-Server. The problem is, that the filtering take more and more time and the configuration gets more and more confusing. What program to use to analyse our central logfile? Something mysql based?
I am currently using Syslog-NG to make the log files in the format of: $R_YEAR$R_MONTH$R_DAY$R_HOUR and I need to be a little more granular.
I am wondering if there is a way to to divide the hour by 12, making a new log file every 5 minutes. We have been using LogRotate, but when Syslog-NG is restarted we have some data loss. Is this possible? Another solution I can think of would be to add $R_MINUTE (or whatever it is) and run a cron job every 5 minutes to concatenate the files.
I am facing an issue with my syslog server. The server is collecting remote log also. and the issue is no log messages are updated in /var/log/messages file. But other files are getting updated.
[root@Server1 ~]# cat /etc/syslog.conf # Log all kernel messages to the console. # Logging much else clutters up the screen.
Syslog stops writing immediately after log rotation, after I start the system (but not after reboot), and at some other times, into my fast cgi application's log. It starts working after /etc/init.d/sysklogd restart.
Configuration:
I am using Ubuntu 8.04 lts server, Apache web server.
How do clients handle offline syslog servers?Will the log files be buffered locally to be sent to the syslog server when it comes back online, or will any log data generated during downtime be lost in cyber space?
RHEL 5.4 i want to be able to do redistribution of inbound syslog messages to syslogd. as example, my syslog.conf has in it at the end:
*.* @192.168.5.5 *.* @192.168.5.6
my sysconfig/syslog file has "-r" as the only option for syslogd. any messages generated by the localhost will be sent to the two remote servers, but messages that come into this box (udp 514) only get logged locally and do not get sent out to the remote hosts.
you may ask why do i want to do this. because i have several syslog servers (for security purposes) and many of my net devices are configured to send syslog to all the syslog servers, hence each device is sending way too much duplicate udp-514. so i would like to minimize the udp-514 coming out of the devices, have all devices send to a central syslog server, and then central syslog server do distribution to the other syslog servers. others have also called this "syslog proxy". or, if not with syslogd, how to achieve this (preserving the original syslog message host info, etc)?
I am writing my own syslog collector, but im stuck with calculating the severity of the message. The PRI value is calculated:- Code: (Facility * 8) + Severity But from the context of a collector, neither Facility or severity would be known? You need to know either severity or Facility to calculate facility or severity?! The RFC goes in to no more detail about calculating the severity value, other tan this expression.
