Alejandro Barocio A. wrote: > When I installed Lenny with the official DVD Binary 1 the network > connection stoped working. Previously, I had Etch 4.0_r5 And > everything worked fine. > > My greater concern is that I still can recive my email via POP > and use messaging with XMPP, also I can connect to my computer > via SMB, HTTP (and, I *fear*, other protocols; so I can be accessed > by the world, but can't access the rest of the world). No output > protocols wok! > > I use to think that the problem was on a WinXP I use as gateway, > but my machine didn't work on ant other connection (not even direct > connection to the DSL modem nor 3.5G USB modem). > > Can anybody tell me what's the problem?, or where can I start? >
If you can connect to your machine via SMB or HTTP and you can use POP to retrieve email then we can conclude that the network connection is working. In order to test your network connection do the following as root or sudo: Open a console 1. Check if your network card has been detected ifconfig -a This will list all network cards found. The first wired network card in Debian is normally "eth0", the second "eth1", etc. 2. Check if your network card has been configured with an IP address. ifconfig eth0 You will see something like this; Link encap:Ethernet HWaddr 00:21:86:61:14:d8 inet addr:192.168.6.217 Bcast:192.168.6.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Memory:fc200000-fc220000 If you see the above then your card is configured. If the second line (inet addr:....)is missing then it is not. Since you stated that you can connect to the machine then I think the network card is configured. 3. Ping tests. This will let you know if the card is working and if you can connect to other devices on the network. Loop back test. This tests the functionality of the network card ping 127.0.0.1 There show be no errors or data loss. Use ctrl+c to stop Assigned IP test. This will test the card with it assigned IP address. ping 192.168.6.217 192.168.6.217 is the address you found using "ifconfig eth0" There should be no errors or data loss. Ping router: This will test if the machine can connect to your router. Find out what your router address is. It should be on the same subnet as your machine. In this example 192.168.6.???. Normally the router is 1. So in this case... ping 192.168.6.1 There should be no errors or data loss. Also look at /etc/network/interfaces to see the setup of your network cards. If all the above is OK then your network connection is good. The next thing to checked is DNS (Domain Name Service/System). Check to see if you can resolve Internet domain names. Us the dig command to do this. dig www.debian.org The result should contain at least one answer with the IP address of www.debian.org. If not then DNS is not configured properly or the DNS server is not functioning. First check your DNS settings cat /etc/resolve.conf You should see something like this: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 192.168.6.1 nameserver 4.2.2.1 search your_domain.prv You should see at least one nameserver IP address. If there is none and you are using DHCP then our DHCP server is not issuing the IP for the DNS server. Problem with DHCP server. If there are one or more nameservers then first ping then and use them with dig ping 192.168.6.1 ping 4.2.2.1 Use ctrl-c to stop should complete with no errors or data loss Use dig to check them. dig @192.168.6.1 www.debian.org dig @4.2.2.1 www.debian.org You should get at least one answer with the resolved IP address of www.debian.org. If not then try another DNS server. You can search the Internet for free DNS servers. 4.2.2.1 is a free DNS server. Have fun :) -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
