On 23/04/02 07:12 -0700, Girish G wrote: > Hi > > i am using RHL 7.1(PCQ), when i tried to use firewall > from "setup" ,i customize and opened ports for > www, smtp, ssh and use a maximum firewall setting. > > after i restarted system . i can telnet to port 110 Wierd. should not happen. What errors in the logs? /var/log/messages is your friend. > i think firewall setting is not working in PCQ rhl > 7.1. Did you enable ipchains at boot?
> also, how can i find all my open ports. lsof, netstat -nl. > is there any RPMS which can be used for that purpose > is there any tools to block port scan. Your firewall should do that. Actually, don't bother. A failed portscan can tell as much as a successful one to an attacker. It will stop 99% of the kiddies out there, but the good ones will learn more from a blocked scan than from an ordinary probe. > can any own suggest a good book/site on network > security Plenty of those. http://www.securityfocus.com is a good place to start. A good mailing list is [EMAIL PROTECTED] As for books, Building Internet Firewalls (ORA) Hacking Exposed (get the latest edition). Practical Unix security (S. Garfinkel/ ORA). are good places to start with. Devdas Bhagat _______________________________________________ linux-india-help mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/linux-india-help
