Re: Strange Network Problem
On 09/02/2018 03:22 PM, mick crane wrote: On 2018-09-02 19:39, David Christensen wrote: On 09/02/2018 05:48 AM, mick crane wrote: On 2018-09-02 13:16, Stephen P. Molnar wrote: The Firewall Passthrough is set to Allocation Mode set to 'Passthrough with the Passthrough Mode set to 'DHCPS-dynamic '. It's my intention to change the Allocation Mode to 'Off', as soon as I talk to AT Tech Support to make sure that doesn't mess things up. I'm not quite understanding how one PC is going straight through the router to the ISP's network whereas you have other PCs with private addresses. In my case as I understand it the ISP's router redirects from its external network to internal private. PC with say 2 NICS one to the router and one to a switch whereby connect the local machines using PC with 2 NICS as gateway doing DHCP, firewall and all that. mick https://en.wikipedia.org/wiki/Firewall_pinhole https://en.wikipedia.org/wiki/DMZ_(computing) https://en.wikipedia.org/wiki/DMZ_(computing)#DMZ_host The OP appears to have the third option enabled on his gateway. the ISP router maybe has NAT ( that's what it's called isn't it ) on some of the ports that things with the private 192.168 block connect to but seems to have a DMZ on one of the ports. I dunno mick https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol https://en.wikipedia.org/wiki/Network_address_translation Internet gateways typically provide DHCP and NAT/IP masquerading to hosts on a private network (e.g. 192.168.1.0/24). DMZ hosts are treated specially. David
Re: Strange Network Problem
On 2018-09-02 19:39, David Christensen wrote: On 09/02/2018 05:48 AM, mick crane wrote: On 2018-09-02 13:16, Stephen P. Molnar wrote: The Firewall Passthrough is set to Allocation Mode set to 'Passthrough with the Passthrough Mode set to 'DHCPS-dynamic '. It's my intention to change the Allocation Mode to 'Off', as soon as I talk to AT Tech Support to make sure that doesn't mess things up. I'm not quite understanding how one PC is going straight through the router to the ISP's network whereas you have other PCs with private addresses. In my case as I understand it the ISP's router redirects from its external network to internal private. PC with say 2 NICS one to the router and one to a switch whereby connect the local machines using PC with 2 NICS as gateway doing DHCP, firewall and all that. mick https://en.wikipedia.org/wiki/Firewall_pinhole https://en.wikipedia.org/wiki/DMZ_(computing) https://en.wikipedia.org/wiki/DMZ_(computing)#DMZ_host The OP appears to have the third option enabled on his gateway. the ISP router maybe has NAT ( that's what it's called isn't it ) on some of the ports that things with the private 192.168 block connect to but seems to have a DMZ on one of the ports. I dunno mick -- Key ID4BFEBB31
Re: Strange Network Problem
On 09/02/2018 05:48 AM, mick crane wrote: On 2018-09-02 13:16, Stephen P. Molnar wrote: The Firewall Passthrough is set to Allocation Mode set to 'Passthrough with the Passthrough Mode set to 'DHCPS-dynamic '. It's my intention to change the Allocation Mode to 'Off', as soon as I talk to AT Tech Support to make sure that doesn't mess things up. I'm not quite understanding how one PC is going straight through the router to the ISP's network whereas you have other PCs with private addresses. In my case as I understand it the ISP's router redirects from its external network to internal private. PC with say 2 NICS one to the router and one to a switch whereby connect the local machines using PC with 2 NICS as gateway doing DHCP, firewall and all that. mick https://en.wikipedia.org/wiki/Firewall_pinhole https://en.wikipedia.org/wiki/DMZ_(computing) https://en.wikipedia.org/wiki/DMZ_(computing)#DMZ_host The OP appears to have the third option enabled on his gateway. David
Re: Strange Network Problem
On 2018-09-02 13:16, Stephen P. Molnar wrote: The Firewall Passthrough is set to Allocation Mode set to 'Passthrough with the Passthrough Mode set to 'DHCPS-dynamic '. It's my intention to change the Allocation Mode to 'Off', as soon as I talk to AT Tech Support to make sure that doesn't mess things up. I'm not quite understanding how one PC is going straight through the router to the ISP's network whereas you have other PCs with private addresses. In my case as I understand it the ISP's router redirects from its external network to internal private. PC with say 2 NICS one to the router and one to a switch whereby connect the local machines using PC with 2 NICS as gateway doing DHCP, firewall and all that. mick -- Key ID4BFEBB31
Re: Strange Network Problem
On 09/02/2018 01:37 AM, David Christensen wrote: On 09/01/2018 04:05 AM, Stephen P. Molnar wrote: On 08/31/2018 10:41 PM, David Christensen wrote: On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Now: root@AbNormal:/home/comp# ifconfig enp2s0: flags=4163 mtu 1500 inet 162.237.98.238 netmask 255.255.252.0 broadcast 162.237.99.255 ether bc:ee:7b:5e:83:36 txqueuelen 1000 (Ethernet) RX packets 796401 bytes 529829454 (505.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 236054 bytes 22520861 (21.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1 (Local Loopback) RX packets 399 bytes 42360 (41.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 399 bytes 42360 (41.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It turns out that this ISP, 162.237.98.238 is my ISP, AT here in Columbus, Ohio. The other four nodes on my LAn all have IP's starting with 192.168.1 - which is what it's supposed to be. Just what is going on here? I don't have a clue. I dop have firewalls implemented on both the modem and the computers. Any insights will be much appreciated. Thanks in advance. Running nslookup(1): 2018-08-31 18:53:21 dpchrist@vstretch ~ $ nslookup 162.237.98.238 Server:192.168.5.1 Address:192.168.5.1#53 Non-authoritative answer: 238.98.237.162.in-addr.arpaname = 162-237-98-238.lightspeed.clmboh.sbcglobal.net. Authoritative answers can be found from: Running host(1): 2018-08-31 18:58:15 dpchrist@vstretch ~ $ host 162.237.98.238 238.98.237.162.in-addr.arpa domain name pointer 162-237-98-238.lightspeed.clmboh.sbcglobal.net. 162.237.98.238 appears to be a valid IPv4 public Internet address. You should have a device provided by your Internet service provider (ISP) between their wiring (e.g. telephone service) and your wiring (e.g. Ethernet local area network/LAN). What is the make and model of the ISP device? Please provide a URL to the product support page. What are the "other four nodes"? How is everything interconnected? David Thanks for your reply. ISO device is an Arris BGE210-700 Broadband Gateway Release 1.0 from AT (http://www.arris.com/Search/?q=Arris+BGE210-700+Broadband+Gateway) Wired Connections: 2 Desktops, printer and VOIP telephone Wireless Connections: Laptop and two Android Smartphones root@AbNormal:/home/comp# nslookup > nslookup -a Server:192.168.1.254 Address:192.168.1.254#53 Non-authoritative answer: Name:nslookup Address: 198.105.244.130 Name:nslookup Address: 104.239.207.44 > > host Server:192.168.1.254 Address:192.168.1.254#53 Non-authoritative answer: *** Can't find host: No answer > It appears that your ISP gateway device is configured to pass through it's Internet address (and all incoming packets) to the computer in question. This is a feature that allows a server behind the gateway to be visible on the Internet. Enabling or disabling gateway features is a matter of browsing to the gateway's IP address (192.168.1.254?) and operatingthe web control panel. I have a Pace Plc Model 5268AC, also through AT The relevant control panel page for putting a server on the Internet would seem to be Settings -> Firewall -> Applications, Pinholes and DMZ. I would pick a computer and then select "Allow all applications (DMZplus mode)" to turn the feature on. The feature is currently off, so I don't know how I would turn it off. If you can't figure out the control panel for your gateway, contact your ISP. David Thanks for your reply. The Firewall Passthrough is set to Allocation Mode set to 'Passthrough with the Passthrough Mode set to 'DHCPS-dynamic '. It's my intention to change the Allocation Mode to 'Off', as soon as I talk to AT Tech Support to make sure that doesn't mess things up. -- Stephen P. Molnar, Ph.D. Consultant www.molecular-modeling.net (614)312-7528 (c) Skype: smolnar1
Re: Strange Network Problem
On 09/01/2018 04:05 AM, Stephen P. Molnar wrote: On 08/31/2018 10:41 PM, David Christensen wrote: On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Now: root@AbNormal:/home/comp# ifconfig enp2s0: flags=4163 mtu 1500 inet 162.237.98.238 netmask 255.255.252.0 broadcast 162.237.99.255 ether bc:ee:7b:5e:83:36 txqueuelen 1000 (Ethernet) RX packets 796401 bytes 529829454 (505.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 236054 bytes 22520861 (21.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1 (Local Loopback) RX packets 399 bytes 42360 (41.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 399 bytes 42360 (41.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It turns out that this ISP, 162.237.98.238 is my ISP, AT here in Columbus, Ohio. The other four nodes on my LAn all have IP's starting with 192.168.1 - which is what it's supposed to be. Just what is going on here? I don't have a clue. I dop have firewalls implemented on both the modem and the computers. Any insights will be much appreciated. Thanks in advance. Running nslookup(1): 2018-08-31 18:53:21 dpchrist@vstretch ~ $ nslookup 162.237.98.238 Server: 192.168.5.1 Address: 192.168.5.1#53 Non-authoritative answer: 238.98.237.162.in-addr.arpa name = 162-237-98-238.lightspeed.clmboh.sbcglobal.net. Authoritative answers can be found from: Running host(1): 2018-08-31 18:58:15 dpchrist@vstretch ~ $ host 162.237.98.238 238.98.237.162.in-addr.arpa domain name pointer 162-237-98-238.lightspeed.clmboh.sbcglobal.net. 162.237.98.238 appears to be a valid IPv4 public Internet address. You should have a device provided by your Internet service provider (ISP) between their wiring (e.g. telephone service) and your wiring (e.g. Ethernet local area network/LAN). What is the make and model of the ISP device? Please provide a URL to the product support page. What are the "other four nodes"? How is everything interconnected? David Thanks for your reply. ISO device is an Arris BGE210-700 Broadband Gateway Release 1.0 from AT (http://www.arris.com/Search/?q=Arris+BGE210-700+Broadband+Gateway) Wired Connections: 2 Desktops, printer and VOIP telephone Wireless Connections: Laptop and two Android Smartphones root@AbNormal:/home/comp# nslookup > nslookup -a Server: 192.168.1.254 Address: 192.168.1.254#53 Non-authoritative answer: Name: nslookup Address: 198.105.244.130 Name: nslookup Address: 104.239.207.44 > > host Server: 192.168.1.254 Address: 192.168.1.254#53 Non-authoritative answer: *** Can't find host: No answer > It appears that your ISP gateway device is configured to pass through it's Internet address (and all incoming packets) to the computer in question. This is a feature that allows a server behind the gateway to be visible on the Internet. Enabling or disabling gateway features is a matter of browsing to the gateway's IP address (192.168.1.254?) and operatingthe web control panel. I have a Pace Plc Model 5268AC, also through AT The relevant control panel page for putting a server on the Internet would seem to be Settings -> Firewall -> Applications, Pinholes and DMZ. I would pick a computer and then select "Allow all applications (DMZplus mode)" to turn the feature on. The feature is currently off, so I don't know how I would turn it off. If you can't figure out the control panel for your gateway, contact your ISP. David
Re: Strange Network Problem
On Saturday, September 01, 2018 11:59:27 AM Stephen P. Molnar wrote: > On 09/01/2018 08:26 AM, rhkra...@gmail.com wrote: > > On Saturday, September 01, 2018 07:05:55 AM Stephen P. Molnar wrote: > >> On 08/31/2018 10:41 PM, David Christensen wrote: > >>> On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: > I am running Debian Stretch on my Linux platform. > > I have noticed low internet traffic when I have not been doing > anything outside of my LAN. This has made me a tad suspicious. > >> > >> Wired Connections: 2 Desktops, printer and VOIP telephone > >> > >> Wireless Connections: Laptop and two Android Smartphones > > > > Out of curiosity, who is your VOIP service provider? > > > > I use ObiHai, and find that it exchanges traffic with its "server" > > continuously. > > > > I've not recently attempted to check how much, and don't remember any > > figures, but it wouldn't surprise me if that accounts for some, most, > > all of the traffic you report. > > > > And, maybe Android smartphones do something similar, especially if they > > are setup for VOIP or some similar service. > > AT Hmm, Ok, I don't have any experience with AT VOIP, but, I still suspect that is the source of at least some of the traffic you notice when you are not doing anything outside your LAN.
Re: Strange Network Problem
On 09/01/2018 08:26 AM, rhkra...@gmail.com wrote: On Saturday, September 01, 2018 07:05:55 AM Stephen P. Molnar wrote: On 08/31/2018 10:41 PM, David Christensen wrote: On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Wired Connections: 2 Desktops, printer and VOIP telephone Wireless Connections: Laptop and two Android Smartphones Out of curiosity, who is your VOIP service provider? I use ObiHai, and find that it exchanges traffic with its "server" continuously. I've not recently attempted to check how much, and don't remember any figures, but it wouldn't surprise me if that accounts for some, most, all of the traffic you report. And, maybe Android smartphones do something similar, especially if they are setup for VOIP or some similar service. AT -- Stephen P. Molnar, Ph.D. Consultant www.molecular-modeling.net (614)312-7528 (c) Skype: smolnar1
Re: Strange Network Problem
On Saturday, September 01, 2018 07:05:55 AM Stephen P. Molnar wrote: > On 08/31/2018 10:41 PM, David Christensen wrote: > > On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: > >> I am running Debian Stretch on my Linux platform. > >> > >> I have noticed low internet traffic when I have not been doing > >> anything outside of my LAN. This has made me a tad suspicious. > >> > Wired Connections: 2 Desktops, printer and VOIP telephone > > Wireless Connections: Laptop and two Android Smartphones Out of curiosity, who is your VOIP service provider? I use ObiHai, and find that it exchanges traffic with its "server" continuously. I've not recently attempted to check how much, and don't remember any figures, but it wouldn't surprise me if that accounts for some, most, all of the traffic you report. And, maybe Android smartphones do something similar, especially if they are setup for VOIP or some similar service.
Re: Strange Network Problem
On 08/31/2018 10:41 PM, David Christensen wrote: On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Now: root@AbNormal:/home/comp# ifconfig enp2s0: flags=4163 mtu 1500 inet 162.237.98.238 netmask 255.255.252.0 broadcast 162.237.99.255 ether bc:ee:7b:5e:83:36 txqueuelen 1000 (Ethernet) RX packets 796401 bytes 529829454 (505.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 236054 bytes 22520861 (21.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1 (Local Loopback) RX packets 399 bytes 42360 (41.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 399 bytes 42360 (41.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It turns out that this ISP, 162.237.98.238 is my ISP, AT here in Columbus, Ohio. The other four nodes on my LAn all have IP's starting with 192.168.1 - which is what it's supposed to be. Just what is going on here? I don't have a clue. I dop have firewalls implemented on both the modem and the computers. Any insights will be much appreciated. Thanks in advance. Running nslookup(1): 2018-08-31 18:53:21 dpchrist@vstretch ~ $ nslookup 162.237.98.238 Server:192.168.5.1 Address:192.168.5.1#53 Non-authoritative answer: 238.98.237.162.in-addr.arpaname = 162-237-98-238.lightspeed.clmboh.sbcglobal.net. Authoritative answers can be found from: Running host(1): 2018-08-31 18:58:15 dpchrist@vstretch ~ $ host 162.237.98.238 238.98.237.162.in-addr.arpa domain name pointer 162-237-98-238.lightspeed.clmboh.sbcglobal.net. 162.237.98.238 appears to be a valid IPv4 public Internet address. You should have a device provided by your Internet service provider (ISP) between their wiring (e.g. telephone service) and your wiring (e.g. Ethernet local area network/LAN). What is the make and model of the ISP device? Please provide a URL to the product support page. What are the "other four nodes"? How is everything interconnected? David Thanks for your reply. ISO device is an Arris BGE210-700 Broadband Gateway Release 1.0 from AT (http://www.arris.com/Search/?q=Arris+BGE210-700+Broadband+Gateway) Wired Connections: 2 Desktops, printer and VOIP telephone Wireless Connections: Laptop and two Android Smartphones root@AbNormal:/home/comp# nslookup > nslookup -a Server:192.168.1.254 Address:192.168.1.254#53 Non-authoritative answer: Name:nslookup Address: 198.105.244.130 Name:nslookup Address: 104.239.207.44 > > host Server:192.168.1.254 Address:192.168.1.254#53 Non-authoritative answer: *** Can't find host: No answer > -- Stephen P. Molnar, Ph.D. Consultant www.molecular-modeling.net (614)312-7528 (c) Skype: smolnar1
Re: Strange Network Problem
On 2018-08-31 20:50, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Now: root@AbNormal:/home/comp# ifconfig enp2s0: flags=4163 mtu 1500 inet 162.237.98.238 netmask 255.255.252.0 broadcast 162.237.99.255 ether bc:ee:7b:5e:83:36 txqueuelen 1000 (Ethernet) RX packets 796401 bytes 529829454 (505.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 236054 bytes 22520861 (21.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1 (Local Loopback) RX packets 399 bytes 42360 (41.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 399 bytes 42360 (41.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It turns out that this ISP, 162.237.98.238 is my ISP, AT here in Columbus, Ohio. The other four nodes on my LAn all have IP's starting with 192.168.1 - which is what it's supposed to be. Just what is going on here? I don't have a clue. I dop have firewalls implemented on both the modem and the computers. Any insights will be much appreciated. Thanks in advance. well ifconfig should report the internal private address of its NIC but seems to be showing the external address range of the router. Could this be anything to do with the router being in bridge mode which is something I'm not entirely clear about. mick -- Key ID4BFEBB31
Re: Strange Network Problem
On 08/31/2018 12:50 PM, Stephen P. Molnar wrote: I am running Debian Stretch on my Linux platform. I have noticed low internet traffic when I have not been doing anything outside of my LAN. This has made me a tad suspicious. Now: root@AbNormal:/home/comp# ifconfig enp2s0: flags=4163 mtu 1500 inet 162.237.98.238 netmask 255.255.252.0 broadcast 162.237.99.255 ether bc:ee:7b:5e:83:36 txqueuelen 1000 (Ethernet) RX packets 796401 bytes 529829454 (505.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 236054 bytes 22520861 (21.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1 (Local Loopback) RX packets 399 bytes 42360 (41.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 399 bytes 42360 (41.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It turns out that this ISP, 162.237.98.238 is my ISP, AT here in Columbus, Ohio. The other four nodes on my LAn all have IP's starting with 192.168.1 - which is what it's supposed to be. Just what is going on here? I don't have a clue. I dop have firewalls implemented on both the modem and the computers. Any insights will be much appreciated. Thanks in advance. Running nslookup(1): 2018-08-31 18:53:21 dpchrist@vstretch ~ $ nslookup 162.237.98.238 Server: 192.168.5.1 Address:192.168.5.1#53 Non-authoritative answer: 238.98.237.162.in-addr.arpa name = 162-237-98-238.lightspeed.clmboh.sbcglobal.net. Authoritative answers can be found from: Running host(1): 2018-08-31 18:58:15 dpchrist@vstretch ~ $ host 162.237.98.238 238.98.237.162.in-addr.arpa domain name pointer 162-237-98-238.lightspeed.clmboh.sbcglobal.net. 162.237.98.238 appears to be a valid IPv4 public Internet address. You should have a device provided by your Internet service provider (ISP) between their wiring (e.g. telephone service) and your wiring (e.g. Ethernet local area network/LAN). What is the make and model of the ISP device? Please provide a URL to the product support page. What are the "other four nodes"? How is everything interconnected? David
Re: Strange Network Problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Stephen P. Molnar wrote: > I am running Debian Stretch on my Linux platform. > > I have noticed low internet traffic when I have not been doing > anything outside of my LAN. This has made me a tad suspicious. > > > It turns out that this ISP, 162.237.98.238 is my ISP, AT here in > Columbus, Ohio. Is this pc perhaps set up to be in the dmz? -BEGIN PGP SIGNATURE- iQEzBAEBCAAdFiEEBcqaUD8uEzVNxUrujhHd8xJ5ooEFAluJst4ACgkQjhHd8xJ5 ooFfegf/UD2Fcat+GG27VWk8w9FdCDmrNwWLHX0jHXa6/0HNQYVKRBYK6x2CXvtk 98XaXDbKAp/cPrMquK9az0po9bC/M97/Ou+/ul1CiTeL9qKN065x+LuLGkEC5Ow/ f4hhqhVCzawQi4A5NcqF14asM2S3FcDQGfSpPIsP1RsA8cSO6ZykQfyLR+s0cs6K mVfhE/1/+OdJms4Fa2tbRzgP2O7nnvKTrnZjLVTSkhVsaonL7K7USpH8bQ6jYW+N t/o6kd4R3LLT/cpw0c6oX7835MRT4SPpmBFCbQfRxSjW4UMxpo6yZav6NwQhNEbN owdR+fRHrLkYanSaKz4k8m3tesLgJQ== =DK7D -END PGP SIGNATURE- -- |_|O|_| Registered Linux user #585947 |_|_|O| Github: https://github.com/dpurgert |O|O|O| PGP: 05CA 9A50 3F2E 1335 4DC5 4AEE 8E11 DDF3 1279 A281
Re: Strange network problem
To download a web page with lynx hit the (p) key and you'll be presented with a menu of built-in choices. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Strange network problem
On 28/01/2008, hce [EMAIL PROTECTED] wrote: Hi, I bought a new ADSL2+ modem and connected to my debian PC. I used DHCP to get IP address, I can ping www.google.com or any domain name, but my browser could not see www.google.com or any web site. Any explanations of why I could ping www.google.com (which means the DNS and route worked fine), but the brower could not download web pages (browser does not any problem if using other network connections)? I've disabled all firewall and service block in the ADSL modem. My debian system does not have any problem if connects to other network. Could it be the modem problem? Thank you. Jim This may be a silly question but prior to getting your new modem was your browser set up to use a proxy? -- rob http://www.worldcommunitygrid.org/team/viewTeamInfo.do?teamId=82BS4ZCMFR1
Re: Strange network problem
On Tue, 29 Jan 2008 08:48:28 +1100 hce [EMAIL PROTECTED] wrote: Hi, I bought a new ADSL2+ modem and connected to my debian PC. I used DHCP to get IP address, I can ping www.google.com or any domain name, but my browser could not see www.google.com or any web site. Any explanations of why I could ping www.google.com (which means the DNS and route worked fine), but the brower could not download web pages (browser does not any problem if using other network connections)? I've disabled all firewall and service block in the ADSL modem. My debian system does not have any problem if connects to other network. Could it be the modem problem? Have you tried more than one browser? What about other protocols, such as telnet, ssh, SMTP/POP/IMAP? Thank you. Jim Celejar -- mailmin.sourceforge.net - remote access via secure (OpenPGP) email ssuds.sourceforge.net - A Simple Sudoku Solver and Generator -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Strange network problem
On Jan 29, 2008 12:26 PM, Celejar [EMAIL PROTECTED] wrote: On Tue, 29 Jan 2008 08:48:28 +1100 hce [EMAIL PROTECTED] wrote: Hi, I bought a new ADSL2+ modem and connected to my debian PC. I used DHCP to get IP address, I can ping www.google.com or any domain name, but my browser could not see www.google.com or any web site. Any explanations of why I could ping www.google.com (which means the DNS and route worked fine), but the brower could not download web pages (browser does not any problem if using other network connections)? I've disabled all firewall and service block in the ADSL modem. My debian system does not have any problem if connects to other network. Could it be the modem problem? Have you tried more than one browser? What about other protocols, such as telnet, ssh, SMTP/POP/IMAP? I tried lynx, it did display with www.google.com and other web pages, but I have never played with lynx before, not sure it worked fine or not. The mail had problem as well, it could not connect to gmail pop server in most time, but I could ping that. The mail did connecte to pop gmail server sometime. The other thing I have to mention that ping time was about 200ms - 800ms, not sure that would cause the brower and mail problem or not? Thank you. Jim Thank you. Jim Celejar -- mailmin.sourceforge.net - remote access via secure (OpenPGP) email ssuds.sourceforge.net - A Simple Sudoku Solver and Generator -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Strange Network problem
Greg Green [EMAIL PROTECTED] writes: machine since it is not acting as the router. Also, when I add a certain host to my Debian /etc/hosts file.the access is great. The I can also flood the machines on the network with ping -f and not lose any packets pop server = qpopper (2.2).one-reocurring 110 error ( connot get canonical name of ip xxx.xxx.xxx.xxx) in /var/adm/messages...I think this particular machine is just configured wrong in its email setup. I think this is a DNS problem. Your linuxbox has trouble resolving the names of the machines in your LAN. Do you have a line nameserver xxx.xxx.xxx.xxx in your /etc/resolv.conf ? I had a similar problem today. I deleted the nameserver lines and couldn't connect with telnet and ftp timed-out after one statusline. Other services worked as well, as long as they didn't try to resolv a name. Ping worked just right. In my case, the tcp wrapper wanted to use 0.0.0.0 as address for a nameserver when it didn't find an entry in resolv.conf . Hope this helps. Ciao, Martin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
