Thanks for your reply.
I don't know what is an attached printer; mine is connected using parallel port.
I tried to connect to http://localhost:631/
but it fails.
ping -c3 localhost
PING localhost.localdomain (127.0.0.1) 56(84) bytes of data.
--- localhost.localdomain ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2001ms
As I have a message when I shutdown the computer indicating that a "named" cannot stop I somewhat googled and found that this is related to a programme "bind9".
I tried what I found on the Internet to localize the problem:
mabecane:/etc/init.d# /etc/init.d/bind9 stop
Stopping domain name service: namedrndc: connect failed: operation canceled
hostname gives "mabecane" which is the name I gave to my computer.
cat /etc/hosts gives:
### etherconf DEBCONF AREA. DO NOT EDIT THIS AREA OR INSERT TEXT BEFORE IT.
127.0.0.1 localhost.localdomain localhost mabecane
### END OF DEBCONF AREA. PLACE YOUR EDITS BELOW; THEY WILL BE PRESERVED.
If I cat /var/log/syslog | grep named
Feb 28 18:40:10 localhost named: starting BIND 9.2.4 -u bind
Feb 28 18:40:10 localhost named: using 1 CPU
Feb 28 18:40:10 localhost named: loading configuration from '/etc/bind/named.conf'
Feb 28 18:40:11 localhost named: ifiter_ioctl.c:236: REQUIRE(iter->pos < (unsigned int) iter->ifc.ifc_len) failed
Feb 28 18:40:11 localhost named: exiting (due to assertion failure)
I stop this, as I don't know if it is related to my problem.
I have one connection to Internet (via a usb modem Sagem 800) and no other network.
I do remember that some time ago I tried to get rid of a message concerning eth0 as I have nothing connected there...I may have broken something there!
NB: I do thank you for your reply: I had told my friends using Windoze that I was sure to get a reply at most one hour later, and you replied 10 minutes later!!
Thanks for your next suggestions.