port knocking with knockd

Hello. I'm trying to enable port knocking with `knockd'. I configured `/etc/knockd.conf': (I changed the default ports.) [options] UseSyslog [openSSH] sequence= 7000,8000,9000 seq_timeout = 5 command = /sbin/iptables -A INPUT -I 6 -p tcp --dport 22 -j AC

Re: How do you read logs?

I've read several threads about Logwatch. Many people say it's very annoying. I think I'll stick with `by hand' approach. Anyway, it's not convenient to use `more'. I'd like to try `grep' instead, but I don't know the right words (like `Exim exploded' for `/var/log/mail.log' or `PWN3D' for `/var/lo

How to check what ports are filtered on a public network?

Hello. Some public networks don't allow to connect to port 25 or forbid non-http traffic. How to check what ports are filtered/blocked? I think it can be done with nmap, but I have never used it. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe".

How do you read logs?

Hello. There are a lot of `possible break-in attempts' messages in my logs. So it's hard to read them `by hand' (with last or more). How do you read yours? Do you use any log analyzers? Which ones? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscrib

warning:xsasl_cyrus_server_get_mechanism_list: no applicable SASL mechanisms

Hello. I'm getting `warning:xsasl_cyrus_server_get_mechanism_list: no applicable SASL mechanisms' (/var/log/mail.log) and `fatal: no SASL authentication mechanisms' (/var/log/mail.err) in Squeeze. Installed: postfix: 2.7.1-1+squeeze1 libsasl2-2: 2.1.23.dfsg1-7 libsasl2-modules: 2.1.23.dfsg1-7 sa