SocketServer Problem

[Ergin Aytac]

I'm trying to run a script written in python and have some socket
connection problems. I cutted the origin script (more than 1000 lines)
so it is only the part of the connection and there is no functionalty
but connecting to a server.
I have no idea about programming with python so every hint is a present
for me :)

------------------------------------
import SocketServer
import os

nntp_hostname = 'news.chello.at '
nntp_port = 119

if os.name == 'posix':
class NNTPServer(Sock etServer.Forkin gTCPServer):
allow_reuse_add ress = 1
max_children = 20
else:
class NNTPServer(Sock etServer.Thread ingTCPServer):
allow_reuse_add ress = 1

class NNTPRequestHand ler(SocketServe r.StreamRequest Handler):
# this is the list of supported commands
def handle(self):
self.input = self.rfile.read (1024)
print self.input

print os.name
print nntp_hostname
print nntp_port

server = NNTPServer((nnt p_hostname, nntp_port), NNTPRequestHand ler)
-------------------------------------

I get the following error on windows:
File "D:\tmp\test\te st.py", line 27, in ?
server = NNTPServer((nnt p_hostname, nntp_port), NNTPRequestHand ler)
File "D:\PYTHON23\li b\SocketServer. py", line 330, in __init__
self.server_bin d()
File "D:\PYTHON23\li b\SocketServer. py", line 341, in server_bind
self.socket.bin d(self.server_a ddress)
File "<string>", line 1, in bind
socket.error: (10049, "Can't assign requested address")

On Linux I get the same message but the error number is 99, "Can't
assign requested address"

- I tried with python 2.3.2 on windows and linux
- I tried with python 2.3.4 on windows and linux
- I tried with other servers and ports ..
- I tried without firewall ..
- I tried with user root on linux ..
- I tried with ip instead of domain name ...
- I tried on 7 other boxes with 3 other isp with and without firewall ...
- I also tried the original script ...

.... but nothing changed.

telnet works fine with every server and port I used for the tests.
The script above worked without any error message on a box of friend.

If you have any idea please let me know.
thanx

Ergin

[Irmen de Jong]

Ergin Aytac wrote:

nntp_hostname = 'news.chello.at '
nntp_port = 119

I very much doubt it that the computer you are trying to run
the program on, is actually called "news.chello.at "....
socket.error: (10049, "Can't assign requested address")
You cannot bind a socket on an address that is not 'yours' ...
The script above worked without any error message on a box of friend.

Now that is weird. Unless your friend works for Chello and his
box is "news.chello.at "...

--Irmen

[Ergin Aytac]

The origin script is a gateway for syncronizing news on usenet servers.
As I can see there are a lot of people who use this script for public
usenet groups. I saw some using it for news.php.net, news.mozilla.or g
without being a part of this domains. Besides I have the access rights
for news.chello.at which recognizes me over the domain name I'm using.
Without any access rights I should also get access to a few public
groups. The friend who tried this server without any errors doesn't work
for chello and his box is not a part of chello.

Something is strange here...

Can I bind a socket to an address that is public and has no access
limits? (like public usenet servers as news.php.net or news.mozilla.or g)

Irmen de Jong schrieb:

Ergin Aytac wrote:

nntp_hostname = 'news.chello.at '
nntp_port = 119

I very much doubt it that the computer you are trying to run
the program on, is actually called "news.chello.at "....

socket.error: (10049, "Can't assign requested address")

You cannot bind a socket on an address that is not 'yours' ...

The script above worked without any error message on a box of friend.

Now that is weird. Unless your friend works for Chello and his
box is "news.chello.at "...

--Irmen

[Irmen de Jong]

Ergin Aytac wrote:

Can I bind a socket to an address that is public and has no access
limits? (like public usenet servers as news.php.net or news.mozilla.or g)

No.

But you can _connect_ to it, which is a very different thing...
Have you read the socket howto? http://www.amk.ca/python/howto/sockets/

--Irmen