Hi, here is my "check-list": - Did you start the sshd? # service sshd start - iptables "en/disabled": # iptables -F # iptables -X # iptables -P INPUT ACCEPT # iptables -P FORWARD ACCEPT # iptables -P OUTPUT ACCEPT - is the "back-route" on A set? *** MY PERSONAL FAVORITE *** # route add default gw B - check nmap-output (both!) you@A # nmap B you@B # nmap A Then try again... cu, Joe >I have 2 machines, one with CentOs4.3 (A) the other with WhiteBox 4(B). >The machine A have a new installtion, the machine B has an already exists >installation. >The machine A has the installytion as is (except tah i choose an IP adress for >eth0) 200.118.115.241 from the graphical interface on Hosts Label >The machine B has eth0 and eth1, it works as proxy >i can connect by ssh from A to B >i can ping B from A >i can not connect by ssh from B to A >i can`t ping A from B >if i do NSLOOKUP in A the reponse is Server inexistent > >What im doing bad? -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list