Installation on same port number

Hello,
Suppose we have a host with two or more alias.
Every alias have a different IP address.
We have a Directory Server running on 389 installed on server ( alias A ).
When I try to install a new Directory Server over the same port on the same server ( using alias B ) the installation program says "the port is in use".
Is it possible to install Directory Server over the same port number ( 389 ) on the same server ( alias B ) without problems ?
Thanks,
silvio

Silvio,
you can do it by:
- installing first instance, bind it to IP address assigned
to alias A by changing attribute nsslapd-listenhost (by
default this attribute is empty and DS binds to all the IP
addresses of the machine) and restarting the instance;
- create the second instance using the same port (389
or whatever you like) , then changing its sslapd-listenhost
attribute to alias B and finally restarting it.
Hope it helps ; for any other info, feel free to contact me at
[email protected] (you probably being Italian like me ...)
Ciao,
Michele Montagni

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I hope I am in the right form (it's the third one I am trying).
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I would like to know if there is a problem that several processes (parent and several child processes) are listening to the same port number, is it better to create thread that would handle the client request, instead of creating a child process?
To better understand the problem I create very simple client and server application.
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The server creates a socket, bind to this socket and then listen to this socket.
After that in a while (1) loop he waits for accept:
int sockclient = accept(sockId,(struct sockaddr*)(&client_addr), &addrLen);
When the server get a sockclient (client ask for service) he create new process (fork()) that handle the client request.
struct sockaddr_in addr, client_addr;
bzero(&addr,sizeof(struct sockaddr_in));
addr.sin_family = PF_INET;
addr.sin_port = 8865;
bcopy(ent->h_addr_list[0],&(addr.sin_addr), ent->h_length);
// bind
bind(sockId,(struct sockaddr*)(&addr), sizeof( struct sockaddr_in));
If it would help I can add the all code.
If you knows about articles that talked about this subject It might help too (I am talking about advantages and disadvantages of thread against process but regardless of sockets).

You might look at this article
http://httpd.apache.org/docs-2.1/misc/perf-tuning.html
under the section "accept Serialization - multiple sockets".

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and
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object network Obj_5004
host 192.168.1.40
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836981 wrote:
I want to make a file transfer application for multiple clients, there will not be a server that users will connect to, the application serves as client AND server, every client will have a serversocket object listen for new connections (it will receive a connection when someone wants to send a file to them)Read up on peer-to-peer.
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          "Majic Robot" <[email protected]> wrote:
          >
          >Folks,
          >
          >I have 3 UNIX machines with 3 Managed WebLogic servers.If I want to do
          >clustering,
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          >
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          >
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Hi,
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hi all,
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Paul Stork SharePoint Server MVP
Principal Architect: Blue Chip Consulting Group
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
Please remember to mark your question as "answered" if this solves your problem.

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Hello,
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-- http://dgielis.blogspot.com/
-- http://apex-evangelists.com/
-- http://apexblogs.info/

Installation on same port number

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