On Wed, 7 Apr 1999, JonesMB wrote: > I have setup a couple of Debian/Linux systems in the lab at work. > They are used for many things, including acting as telnet and FTP > servers for various test programs. The test engineers complain that > when an attempt is made to connect to the Linux box, it takes a while > before they get the login prompt. Is there anything in the network > configuration settings that can be done so the login prompt comes up > at once.
your tcp wrappers by default do a reverse DNS lookup on connecting hosts, and then a forward DNS lookup to see if the names match (basic anti-dns spoofing). if you're in a lab and not exposed to the Internet this is probably unnecessary so you can make the following modification in /etc/hosts.deny: # /etc/hosts.deny: list of hosts that are _not_ allowed to access the system. [snip] #ALL: PARANOID ^ comment out this line. that should make inbound connects a bit more speedy. alternatively make entries for the machines connecting to the box in /etc/hosts, and lookups will be speedy. -thomas ...... please forgive my abrupt ending hre - but my conection is xtrememleyyhiclmelyey BAD hiccuppy etc must sign off - EF D8 33 68 B3 E3 E9 D2 C1 3E 51 22 8A AA 7B 98 umbra (!)
