Folks:
I playing with Linux and wish know why World reportLocalAddress report 127.0.01 and ifconfig on Linux console gives me 192.168.1.4.
The Linux is SimplyMepis 6.5, installing from his repositories ( via console synaptic package manager) brings me Squeak 3.8, and I figure out how transfer and run the 3.10 needed files
The computer is on small Lan connected to router with Mac and Windows, so I could test Squeak 3.10 on the three systems.
Any lead ?
Edgar
2007/10/29, Edgar J. De Cleene edgardec2001@yahoo.com.ar:
Folks:
I playing with Linux and wish know why World reportLocalAddress report 127.0.01 and ifconfig on Linux console gives me 192.168.1.4.
The Linux is SimplyMepis 6.5, installing from his repositories ( via console synaptic package manager) brings me Squeak 3.8, and I figure out how transfer and run the 3.10 needed files
The computer is on small Lan connected to router with Mac and Windows, so I could test Squeak 3.10 on the three systems.
Any lead ?
I already asked this some time ago and was told this was correct because there are many interfaces on linux and one just happens to be 127.0.0.1. I don't know why the corresponding method is not changed to a quick return that always returns this, since it is always correct.
Cheers Philippe
On Oct 29, 2007, at 10:44 , Edgar J. De Cleene wrote:
Folks:
I playing with Linux and wish know why World reportLocalAddress report 127.0.01 and ifconfig on Linux console gives me 192.168.1.4.
I doubt that - ifconfig most certainly gives you *both*, 127.0.0.1 and 192.168.1.4.
The Linux is SimplyMepis 6.5, installing from his repositories ( via console synaptic package manager) brings me Squeak 3.8, and I figure out how transfer and run the 3.10 needed files
The computer is on small Lan connected to router with Mac and Windows, so I could test Squeak 3.10 on the three systems.
Any lead ?
The old socket plugin only supported returning one address, it picked the first one, and depending on how your Linux box is configured, could pick the wrong one.
Ian Piumarta extended the plugin to actually support getting more addresses, it is in his latest sources. I think work is underway to port this to other platforms. To use the extended primitives you need new support code, which is ... somewhere, Michael Rüger did that. It's in the OLPC image, for example (which needed to support IPv6 and that was the reason for the new plugin).
- Bert -
El 10/29/07 7:39 AM, "Bert Freudenberg" bert@freudenbergs.de escribió:
I doubt that - ifconfig most certainly gives you *both*, 127.0.0.1 and 192.168.1.4.
Yes , I have some similar to Davide Arrigo mail.
Ian Piumarta extended the plugin to actually support getting more addresses, it is in his latest sources. I think work is underway to port this to other platforms. To use the extended primitives you need new support code, which is ... somewhere, Michael Rüger did that. It's in the OLPC image, for example (which needed to support IPv6 and that was the reason for the new plugin).
- Bert -
I try this. As I said, I need eth0 answer. If I start some game in this machine, I need 192.168.x.y for using in Firefox or Safari form other computer. I just discover if I use Nebraska, the Listener in Mac Squeak image works and gives 192.168.1.4. So I need dig on how works for send intended IP .
Very thanks !
Edgar
All the OS's, answers 127.0.0.1 if you ask for localhost.
localhost = 127.0.0.1 = this machine
If you don't want to check the ethernet interfaces, one of the best ways is *ping* to the machine name. On Windows systems, the command hostname, answers the machine's name.
I don't know how Squeak works for this.
El 10/29/07 7:39 AM, "Bert Freudenberg" bert@freudenbergs.de escribió:
I doubt that - ifconfig most certainly gives you *both*, 127.0.0.1 and 192.168.1.4.
Yes , I have some similar to Davide Arrigo mail.
Ian Piumarta extended the plugin to actually support getting more addresses, it is in his latest sources. I think work is underway to port this to other platforms. To use the extended primitives you need new support code, which is ... somewhere, Michael Rüger did that. It's in the OLPC image, for example (which needed to support IPv6 and that was the reason for the new plugin).
- Bert -
I try this. As I said, I need eth0 answer. If I start some game in this machine, I need 192.168.x.y for using in Firefox or Safari form other computer. I just discover if I use Nebraska, the Listener in Mac Squeak image works and gives 192.168.1.4. So I need dig on how works for send intended IP .
Very thanks !
Edgar
2007/10/29, Edgar J. De Cleene edgardec2001@yahoo.com.ar:
Folks:
I playing with Linux and wish know why World reportLocalAddress report 127.0.01 and ifconfig on Linux console gives me 192.168.1.4.
Hi Edgar, your system answer correctly, in Unix/Linux each network interface has an IP address. This is the ifconfig output on my Linux server:
[arrigo@aleph ~]$ /sbin/ifconfig eth0 Link encap:Ethernet HWaddr 00:0A:5E:05:9A:30 inet addr:192.168.1.200 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:3694 errors:0 dropped:0 overruns:0 frame:0 TX packets:3776 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:744868 (727.4 KiB) TX bytes:1465239 (1.3 MiB) Interrupt:19 Base address:0x8000
eth1 Link encap:Ethernet HWaddr 00:0A:5E:61:E4:1A inet addr:192.168.150.1 Bcast:192.168.150.255 Mask:255.255.255.0 inet6 addr: fe80::20a:5eff:fe61:e41a/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:5712 errors:0 dropped:0 overruns:0 frame:0 TX packets:6028 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:940605 (918.5 KiB) TX bytes:6432999 (6.1 MiB) Interrupt:20 Base address:0x4000
eth3 Link encap:Ethernet HWaddr 00:0F:EA:3B:1D:F1 inet addr:192.168.200.251 Bcast:192.168.200.255 Mask:255.255.255.0 inet6 addr: fe80::20f:eaff:fe3b:1df1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:17510798 errors:0 dropped:0 overruns:0 frame:0 TX packets:16697957 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:396599015 (378.2 MiB) TX bytes:2907114630 (2.7 GiB) Interrupt:17
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:348589 errors:0 dropped:0 overruns:0 frame:0 TX packets:348589 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:329493617 (314.2 MiB) TX bytes:329493617 (314.2 MiB)
As you can see there are many eth interface with its IP address and at least the localhost 127.0.0.1. Maybe you have to change your request and ask for a specific interface.
Best Regards
El 10/29/07 7:44 AM, "Davide Arrigo" davide.arrigo@gmail.com escribió:
As you can see there are many eth interface with its IP address and at least the localhost 127.0.0.1. Maybe you have to change your request and ask for a specific interface.
Best Regards
Thanks, very illustrative, I having some similar to yours
I see if I could load CommandShell and OSProcessV4 and test if could do ifconnfig from Squeak.
Seems I need eth0 answer and not lo answer.
Edgar
On Monday 29 October 2007 5:00 pm, Edgar J. De Cleene wrote:
Seems I need eth0 answer and not lo answer.
Edgar
On Linux, you can get the first global ip address with the command (all in one line): ip -o addr show scope global | awk '{print substr($4,1,index($4,"/")-1); exit}'
Hope this helps .. Subbu
El 10/29/07 4:24 PM, "subbukk" subbukk@gmail.com escribió:
On Linux, you can get the first global ip address with the command (all in one line): ip -o addr show scope global | awk '{print substr($4,1,index($4,"/")-1); exit}'
Hope this helps .. Subbu
Thanks, I learning a lot of all you.
I need from inside Squeak
I confirm I could send socket data and Nebraska from Linux to Mac but not inverse. And can't connect to swiki running on the Linux box with 192.168.1.4:port but same image and setup works on Mac and Windows XP. Once the connection is established I could have the ip via the live socket instance. | s | s := Socket new. s connecTo: "here mac or Windows ip " port: 8000
s inspect.
And here self localAddress gives the intended ip
Seems I don't setup well some in the Linux box.
Edgar
Edgar J. De Cleene schrieb:
Folks:
I playing with Linux and wish know why World reportLocalAddress report 127.0.01 and ifconfig on Linux console gives me 192.168.1.4.
The Linux is SimplyMepis 6.5, installing from his repositories ( via console synaptic package manager) brings me Squeak 3.8, and I figure out how transfer and run the 3.10 needed files
The computer is on small Lan connected to router with Mac and Windows, so I could test Squeak 3.10 on the three systems.
Any lead ?
Others have already told you different tricks, here's one more: When you execute "(Socket newTCP connectToHostNamed: 'squeak.org' port: 80) localAddress" you get the address of the interface which can be used to connect to squeak.org. So if your machine is connected to two local networks 192.168.1.x and 192.168.2.x you get back the address of the interface that is connected to the internet (via some router/NAT gateway or whatever). Of course, you should substitute some other address for squeak.org if your network is not connected to the internet. And if you're not a messie, you should clean up after yourself by closing the open socket :-)
Cheers, Hans-Martin
El 10/29/07 4:38 PM, "Hans-Martin Mosner" hmm@heeg.de escribió:
When you execute "(Socket newTCP connectToHostNamed: 'squeak.org' port: 80) localAddress" you get the address of the interface which can be used to connect to squeak.org. So if your machine is connected to two local networks 192.168.1.x and 192.168.2.x you get back the address of the interface that is connected to the internet (via some router/NAT gateway or whatever). Of course, you should substitute some other address for squeak.org if your network is not connected to the internet. And if you're not a messie, you should clean up after yourself by closing the open socket :-)
Cheers, Hans-Martin
Thanks, is just what I discover , but better, as I don't need others machines on my lan, only trusted web connected machine.
Edgar
On Mon, 2007-10-29 at 17:21 -0300, Edgar J. De Cleene wrote:
El 10/29/07 4:38 PM, "Hans-Martin Mosner" hmm@heeg.de escribió:
When you execute "(Socket newTCP connectToHostNamed: 'squeak.org' port: 80) localAddress" you get the address of the interface which can be used to connect to squeak.org. So if your machine is connected to two local networks 192.168.1.x and 192.168.2.x you get back the address of the interface that is connected to the internet (via some router/NAT gateway or whatever). Of course, you should substitute some other address for squeak.org if your network is not connected to the internet. And if you're not a messie, you should clean up after yourself by closing the open socket :-)
Cheers, Hans-Martin
Thanks, is just what I discover , but better, as I don't need others machines on my lan, only trusted web connected machine.
You don't need a web connected machine. The trick Hans-Martin told you depends on the choice of the outgoing interface which you can request. The interface is chosen based on the configuration of your linux box. If you open a connection to any host your linux box tries to figure out if it knows anything about the host. If it is an unknown machine it sends all the requests to this host simply to the default gateway. You can see this by issuing /sbin/route -n on your linux box. The entry which has 0.0.0.0 is the one I'm speaking of. So all you need is to open a connection to this IP (not the 0.0.0.0 the other one :) ) and you can then request the interface address. This may be a less error prone than chosing an arbitrary internet host. It assumes that usually there is a connection to any other net (which involves a gateway).
my 2 zent
Norbert
Wouldn't it be nice to be able to enumerate the actual interfaces though... and route things to a particular one. We generally have to disable net.eth0 to allow gprs connections... and then manage multiple modems manually.
-----Original Message----- From: squeak-dev-bounces@lists.squeakfoundation.org [mailto:squeak-dev-bounces@lists.squeakfoundation.org]On Behalf Of Edgar J. De Cleene Sent: 29 October 2007 8:21 PM To: The general-purpose Squeak developers list Subject: Re: [Q] Linux and localAddress
El 10/29/07 4:38 PM, "Hans-Martin Mosner" hmm@heeg.de escribió:
When you execute "(Socket newTCP connectToHostNamed: 'squeak.org' port: 80) localAddress" you get the address of the interface which can be used to connect to squeak.org. So if your machine is connected to two local networks 192.168.1.x and 192.168.2.x you get back the address of the interface that is connected to the internet (via some router/NAT gateway or whatever). Of course, you should substitute some other address for squeak.org if your network is not connected to the internet. And if you're not a messie, you should clean up after yourself by closing the open socket :-)
Cheers, Hans-Martin
Thanks, is just what I discover , but better, as I don't need others machines on my lan, only trusted web connected machine.
Edgar
On Wed, 2007-10-31 at 22:44 +0000, Gary Chambers wrote:
Wouldn't it be nice to be able to enumerate the actual interfaces though... and route things to a particular one. We generally have to disable net.eth0 to allow gprs connections... and then manage multiple modems manually.
What do you want to do? Switch network connections or use several network connections simulatenous? To select your gprs link you could us OSProcess/CommandShell to invoke a command which switches the default route. You can do this anytime. Using multiple connections simultaneously is not easy but doable. Have a look at:
http://www.clintoneast.com/articles/multihomed.php
Hope this helps?
Norbert
squeak-dev@lists.squeakfoundation.org
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Bert Freudenberg -
Davide Arrigo -
Edgar J. De Cleene -
Gary Chambers -
glpunzi＠lordzealon.com -
Hans-Martin Mosner -
Norbert Hartl -
Philippe Marschall -
subbukk