Am Do, den 04.08.2005 schrieb akonstam@xxxxxxxxxxx um 20:23: > I am loosing my cool on this so I need help. /me donates a cool breeze ;) > This has to do with the ipp (cupsd) port 631. > On the server. > Running netstat -anp |grep 631 > returns: > tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 24471/cupsd Means cupsd is listening on localhost (127.0.0.1) only on port 631 TCP. > udp 0 0 0.0.0.0:631 0.0.0.0:* 24471/cupsd Means cupsd is listening on all devices on port 631 UDP. > Indicating that cupsd is listening on that port. > Running: nmap -sT -O localhost |grep 631 > 631/tcp open ipp > And on the server I can telnet localhost 631 and it connects. Is to be expected from netstat output. > However from a client when I run: nmap -sT -O sol |grep 631 > from a client (sol is our server) the 631 entry does not appear and in > fact when I telnet to the server at port 631 the connection is > refused. This is to be expected from netstat output too. nmap --help --> -sT TCP connect() port scan (default for unprivileged users) So you test TCP with that, but port 631 TCP is bound to localhost only. You would need to run "nmap -sU -p 631" against the cups server host to get a proper result. > One would hope that somewhere in the cupsd.conf there is a line that > opens that port for access from other machines. Anyone know how to > open that port or what that line is in the configuration file. > There is no firewall involved here. Find the "Listen" line(s) in your /etc/cups/cupsd.conf. Make sure it is not only Listen 127.0.0.1:631 but too Listen <non local IP>:631 Be sure that IP's net or at least the client's IP appears too in the "Allow From" statements. > Aaron Konstam Alexander -- Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773 legal statement: http://www.uni-x.org/legal.html Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.11-1.35_FC2smp Serendipity 20:12:50 up 20 days, 45 users, load average: 0.11, 0.16, 0.17
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