I have a Debian-Server with IMAP, Apache, and SMTP running.
From one particular IP I have no access to the server -- the server is unavailable, but for other clients it is available!
I can not traceroute from the server to the particular IP:
traceroute to 88.209.67.xx (88.209.67.xx), 30 hops max, 60 byte packets
1 server.com (88.198.57.xx) 3005.394 ms !H 3005.391 ms !H 3005.387 ms !H
...and tracerouting from that IP to the server ends on the last hop but one (Juniper Switch in Data-Center).
Please advise on how to solve the issue. No
iptable rules or
hosts-deny block are in effect for this IP.
There is no output from:
grep -R IPADRESS /var/log and in /etc/