Collect logs from hosts - free syslog server

[kkoko]

Do you know any software which can collect logs from LAN servers and show them in clear and managed form? It generally should works with linux clients (Windows is optional).
I was trying Kiwi syslog solarwinds.com/products/kiwi_syslog_server/features.aspx , but as I know (meybe I'm wrong) it use only snmp for linux servers - it can't send system logs.
For monitoring I use Munin.
Second one, which I was trying is php-syslog-ng but it is only local (non network) and very old project (2004).
It would be best if it can run scripts on incidents and have a web access interface and database MySQL.
I'm lookking for something free - for example Kiwi syslog is free in limited/poorer version after trial period.

[Irithori]

The enhanced syslogd for Linux and Unix rsyslog
together with
phpLogCon :: a syslog data viewer for the web
should meet your requirements.

For a start, all clients only need the standard syslog daemon, and even windows can log in that protocoll.

So only the syslog server should be rsyslog.

[Kloschüssel]

collectd may serve you well?

[jledhead]

depending on how many clients you have Splunk | IT Search for Log Management, Operations, Security and Compliance has a free version and their interface is one of my favorites in any free or enterprise log manager.