syslog log collabration

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Hi list,
I'm trying to collect logs from many microsoft eventlogs and linux
syslogs, and
put all of these logs into same syslogd on a linux computer. 

1. I'm not sure which syslog daemon to choose: syslogd or syslog-ng.
   Any comments?

I got it to run on syslogd with Eventlog to Syslog Utility from Purdue
University
and it works great. My next issues are:

2. I have to make the syslog deamon secure so that only the hosts I
chose can connect.
   Is there any whitepapers or recommendations on how to do this?

3. I need to have a good syslog analyzer to do the logs, report on email
or web.
   What is the best tool for this?

thx

---
Trond

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