syslog is a standard for logging messages about the operation of a system.

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Why isn't /var/log/maillog written with sync option by default?

Some syslog implementations on linux (sysklogd, rsyslog) include the following line in their default configuration: mail.* -/var/log/maillog As far as I know the dash sign means that it is not ...
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380 views

Ubuntu 10.04 syslog not logging to correct file

In a similar vein to Why is Syslog Not Writing Logs To The Designated Files? I'm having a few problems with syslog on Ubuntu 10.0.4 I have an app which I have set to facility local7. I added the ...
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90 views

Syslog-ng prepends <[0-9]+> to my messages

I'm writing some parsing logic for syslog-ng messages and am noticing that for many of the commands syslog-ng prepends a <[0-9]+> string to most of my messages. Here is an example from me ...
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1k views

/var/log/messages spammed with POLLERR messages

I've started seeing /var/log/messages growing in size indefinitely with these lines: Aug 1 12:47:27 linux-jblp syslog-ng[1947]: POLLERR occurred while idle; fd='16' Process 1947 is this: root ...
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665 views

Amavisd-new cannot start - missing Unix::Syslog (CentOS)

I followed the basic instructions here for installing amavisd, spamassassin + clamav... http://wiki.centos.org/HowTos/Amavisd I get the following error when trying to start amavisd... # service ...
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Squid logging to syslog-ng - program name has brackets

Using Ubuntu 10.04.4 LTS and Squid3 I want to log to syslog-ng Edited /etc/squid3/squid.conf and added the following line: access_log syslog squid Logs are being written but the program name ...
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1answer
7k views

rsyslog not logging messages

i'm attempting to set up my ec2 instance (running amazon linux which as i understand is built on RHEL 5) to forward log messages to loggentries.com but nothing is getting forwarded. as a sanity check ...
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Deciphering continuing mpt2sas syslog messages

Summary I have been getting these cryptic messages in syslog since I installed some new hardware and I can't figure out what the problem is, if it's serious, or what to do about it. They're from the ...
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839 views

Configuring 'audit' facility in syslog-ng on solaris server?

This is a follow-up to this question. mghocke was kind enough to help me out with that question, but this is really a separate question, therefor a new post. I really don't know a lot about syslog, ...
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685 views

Moving from syslog.conf to syslogng.conf

I'm moving a Solaris box from syslogd to syslog-ng, because the Solaris version of syslogd obliterates the original source hostname on the logs. I'm looking through the syslogng.conf documentation, ...
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Does this log indicate the server reboooted?

I have a webserver I think rebooted at some point .. mostly because apache wasn't serving sites and it usually does that when someone starts it and doesn't enter the SSL cert's password ... and a ...
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198 views

Alternative solution to replace aging swatch

We are using swatch installation to sort through 3-5 gig worth of networking syslog and alert us on patterns , we are using splunk to index and search the data but splunk alerting capabilities are ...
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124 views

cisco syslog host dns

When I tell my Cisco router (IOS) to (config)# logging syslog.mydomain.com and then look at the config, the config contains the IP of syslog.mydomain.com, i.e. 1.2.3.4. Now the whole purpose of ...
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1answer
4k views

How to log to /var/log/messages on Debian Squeeze as normal user?

In Ubuntu I could do something like: sudo echo something | logger -t logstuff Then I would get well formatted message in syslog (/var/log/messages). On Debian Squeeze that isn't the case, the above ...
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71 views

Syslog message '^@' indicates server crash

The php-cgi's died on a vps I look after and the only syslog entry is this followed by me restarting the VM: ...
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315 views

How to process, transform and re-send 1000req/sec log entries from syslogd?

I currently have two machines that receive about 1000 HTTP req/sec both and generate a log entry on every request. This log is centralized on a syslog daemon running on a different machine. For ...
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1answer
300 views

Rsyslog Discarding Unwanted Messages

Once again, i found that Rsyslog is not as flexible as i expected... My application logs to LOCAL5.* ( depending on the severity ) I would like to see on my centralized log server only ...
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2answers
688 views

Why aren't Heroku syslog drains logging to rsyslogd?

I'm having a problem using syslog drains as described in https://devcenter.heroku.com/articles/logging. To summarize, I have an Ubuntu 10.04 instance on EC2 that is running rsyslogd. I've also set ...
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2answers
1k views

Postfix logs missing information on delivery status (postfix/smtp message)

I noticed a problem with postfix logs, that information on some of emails delivery status is missing. The issue affects about 1% of emails. "Healthy" log: <server># grep 8EB992EFBB44 ...
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1answer
838 views

HAProxy running in chroot jail is only logging started messages

I've configured my HAProxy server to run in a chroot jail logging messages to syslog socket. My problem is that the only messsages currently being logged are for when haproxy is starting up. May 26 ...
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1answer
1k views

syslog written on console

I have odd problem with syslog local7, my syslog configure the syslog to be written to local7.info /var/log/syslog_info it's working just fine for years but recent days one device syslog message ...
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Best Practices for rotating syslog logs on RHEL with different schedules?

OS: Running RHEL 5.6. Situation: I need to rotate /var/log/messagees on a different schedule than the rest of the syslog logs. By default syslog logs are rotated weekly based on the ...
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Can it be because of any Kernel Bugs?specifically spin lock

We are running ubuntu 11.04 with 2.6.38-13-generic kernel on Intel(R) Xeon(R) CPU E5620 @ 2.40GHz with 48 GB RAM dedicated server with Hardware RAID. top command output is showing many kernel ...
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Can a hostname be added to syslog-ng?

How can syslog-ng be configured to send both the hostname and the IP address. Currently, logs are sent with the IP address of the device/machine, but we want to add the hostname so I could keep my ip ...
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875 views

VMware: Is my SYSLOG Collector running?

I am trying to determine if my Syslog Collector I just set up in vCenter 5 is working correctly. According to this VMware KB article and this VMware blog article, everything seems to be up and ...
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Apache httpd: Send error logs to syslog and local disk? Without touching /etc/syslog.conf?

I have an Apache httpd 2.2 server. I want to log all messages using syslog, so that the requests are sent to our central syslog server. I also want to ensure that all log messages are sent to local ...
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rsyslog: How do I direct messages from all remote machines to one file?

We have a syslog server and we have all our servers logging to it. We want a sort of "catch-all" drippan rule for all remote messages that we have not configured a rule for. Anyone know how to ...
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3answers
4k views

rsyslogd: Any way to get around the number of local facilities?

We have about 9-10 appliances we want to direct the logging to our rsyslog server for. However, there's only 8 local facilities (0-7). How can we get around this limitation?
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What is the “facility” of SnapGear SG560 System Log Syslog

My SnapGear (now McAfee) SG560 (firmware Version 4.0.10) has a "remote system log" feature, which can send syslog-type data to a host in my network. It's working, but writing to /var/log/messages. I'd ...
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1answer
2k views

How to maintain the log source host using logstash

I am following the steps in this blog to set up rsyslog + logstash + graylog2 and I can't figure out how to replace the @source_host attribute in logstash using the mutate -> replace filter. In the ...
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1answer
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syslog writing to general instead of specific file

I'm running Ubuntu and Postgresql 9. I've enabled postgresql to log to syslog, and added the following directive to the config file: syslog_facility = 'local0'". I've tried to configure syslog ...
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541 views

Additional Security Measures for Syslog over SSH

I'm currently working on setting up some secure syslog connections between a few Fedora servers. This is my currently setup 192.168.56.110 (syslog-server) <----> 192.168.57.110 (syslog-agent) ...
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345 views

On Solaris, how to log IP when using winbind auth and invalid user?

This is on Solaris 10 sparc platform. I'm trying to make our denyhosts script block the dictionary ssh attacks. Unfortunately, the logging does not show an IP when the user name is invalid. We are ...
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3answers
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How to stop syslog from listening to 514 on CentOS 5.8

I have a CentOS 5.8 machine (with regular syslog) that for some reason is listening to port 514, even though it is not started with "-r" (to receive remote syslog messages). # netstat -tulpn | grep ...
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Increase rsyslog/syslog precision to include fractional seconds?

I use syslog and rsyslog to handle logging on my Linux & FreeBSD systems. The timestamp is currently in seconds but I would like to increase the precision of these timestamps to include ...
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Syslog-ng: how to change a message before sending to a remote host

I'm using syslog-ng 1.6.8 on SLES 10. From this machine, I need to forward all events to the remote host 10.30.38.115. But preliminary I have to change messages a little bit, adding "MyMark" prefix to ...
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1answer
376 views

Opensource log correlation application - an alternative to SEC?

is there a opensource log correlation application? I know only SEC[1]. The best would be if the application could work in clustered setup and would understand even structured logs, not only free-text ...
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114 views

syslog - log line classifications [closed]

A very generic question; in the context of a programmer, with operational aspect of the process (program) in mind. Is there any sort of best-practice / guide to classify messages, particularly in the ...
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851 views

Syslog severity levels when to use Alert vs Critical

Short overview: Is Alert more severe than Critical. RFC 5424 briefly defines syslog severity levels and gives a short description. Each syslog level is given a code 0 - 7. It was my understanding ...
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2answers
2k views

RSyslog does not work with a log file located outside of /var/log

I am unable to get rsyslog to write to a log file located in a directory other than /var/log. The server is RHELS 5.6 and for the most part with a default configuration. Other than the rsyslog ...
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2answers
1k views

Remote Logging with syslog

I have two machines running FreeBSD, bsdclient and bsdserver. I am trying to setup remote logging such that bsdclient sends all the logs to bsdserver. My syslog.conf on bsdclient goes like this *.* ...
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1k views

Why does iptables output to /dev/console?

For some reason I see the output from this iptables rule $IPT -A FORWARD --jump LOG $IPT -A FORWARD --jump ACCEPT on the console eventhough I have disabled kern in /etc/syslog.conf #kern.* ...
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1answer
1k views

Lots of nfs4_reclaim_open_state: Lock reclaim failed entries in syslog

I have an Ubuntu 11.10 VM set up in VMSphere. I'm storing some data on a nfs mount. The VM has been going down frequently. I haven't been able to pin the reason why down, but I think it has to do with ...
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How to configure JBoss AS 7 to log to syslog?

How do i configure jboss to log to syslog?
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log forwarding performance and OS bottleneck

How many logs/second can usually be handled by syslog servers? By syslog servers, I am referring to rsyslog, syslog-ng, splunk etc. The intent of the question is to find out at what logs/second rate ...
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Unusual server crash on EC2, syslog has line of ^@^@^@^@^@

Trying to get at the root of why a server went down for 20 minutes, I looked at the syslog for that time period and saw this: Jan 3 07:50:01 tools CRON[17085]: (munin) CMD (if [ -x ...
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Splunk How do I get syslog to send data into splunk from remote machines

If I install the splunk forwarder, I can get the remote data into my splunk install, and index my logs, and searching is great. But I have a number of router devices and other devices that run syslog, ...
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1answer
669 views

Redirecting rabbitmq-server log messages to syslog

I have a CentOS machine running rabbitmq-server v2.2.0-1.el5, and rabbitmq is outputting it's log messages to various files under /var/log/rabbitmq. If there anyway to configure rabbitmq to tell it ...
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1answer
708 views

vSphere ESXi 5.0 hosts syslog to Graylog2 - Mangled log entries

I'm just setting up graylog2 (which is awesome) to be a syslog server for my virtualised environment. All my hosts and switches are happily logging away to graylog2, which is drawing some pretty ...
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1answer
258 views

Zensyslog Clear Events

I've hooked up Zenoss' Zensyslog so that messages from a distributed list of client machines are all conglomerated into events on the Zenoss server. This is all fantastic, and I can bump messages by ...