Hello, I have been trying for 2 days to get iptables to work. Something is really really wrong. Initially I was trying on a 7.3 install that had been upgraded from 7.2. I thought maybe the software was just messed up so I just finished a clean install of 8.0, yet I am getting exatly the same error messages: bismuth:~ # iptables -A INPUT -p tcp -i eth0 -s 192.168.0.110 -j DENY iptables v1.2.5: Couldn't load target `DENY':/usr/lib/iptables/libipt_DENY.so: cannot open shared object file: No such file or directory Try `iptables -h' or 'iptables --help' for more information. bismuth:~ # iptables -A INPUT -p tcp -i eth0 -s 192.168.0.110 -j deny iptables v1.2.5: Couldn't load target `deny':/usr/lib/iptables/libipt_deny.so: cannot open shared object file: No such file or directory Try `iptables -h' or 'iptables --help' for more information. bismuth:~ # iptables -A INPUT -s 65.166.138.61 -j DENY iptables v1.2.5: Couldn't load target `DENY':/usr/lib/iptables/libipt_DENY.so: cannot open shared object file: No such file or directory Try `iptables -h' or 'iptables --help' for more information. bismuth:~ # I've tried dozens ot test commands too, any of the that use DENY or ACCEPT fail. Even more interesting: According to the Linuxnewbie.org tutorial, both of the following commands should prevent 192.168.0.110 from being able to access the machine running iptables: iptables -A INPUT -s 192.168.0.110 -j DENY iptables -A INPUT -s 192.168.0.110 -j DROP Yet, the exact _opposite_ happens: the local machine ends up not being able to to anything to the remote host, yet the remote host is still able to log in via telnet just fine. Disgusting. Thinking that maybe I was just misunderstanding something, I tried -d in place of -s and that does nothing at all, both hosts are able to log into each other. Something is badly amiss. Please, can anyone explain this? I get similar errors when I try to use ACCEPT. All I'm trying to do is restrict port 5000 (I'm using 5001 as a test) so that only 1 IP can access it. Eventually that IP will be 65.166.138.61 but I'm using 192.168.0.110 as a test. Please, someone strighten me out. And before you say RTFM, I've been reading it for 2 days. I'm going precisly by the book, and it's not working. Something is just plain wrong. Also please don't ask me to use SuSE Firewall2, I've tired it quite a few times and I'm never able to get it to work. Thanks in advance. -- ---------------------------------------------------- Jonathan Wilson System Administrator Clickpatrol.com Cedar Creek Software http://www.cedarcreeksoftware.com