Dear members, I had written to the list weeks back on socket programming on Linux , and I had sent across , my TCPEchoserv.c and the TCPEchoclient.c
Naren said that it worked for him , that makes me all the more desperate. I removed firewalls from my box , just in case that prevents sockets from communicating . (rpm -e ipchains). But , neither at the server (10.10.1.4) nor at the client (10.10.1.15) does the client-server work , even on loopback (starting the server as ./a.out on one VT --&-- starting the client as ./a.out 127.0.0.1 on another VT) The situation remains the same even after removing ipchains , and at any case , ftp ,ssh , rsh , rlogin , telnet , ping , etc work pretty fine . My next questions are : 1) What tools (rpm-s) have to be installed on your box so that socket programming does work ? 2) Obviuosly everything else is in order , and firewalls (ipchains) do not cause the problem (because , even after removing them , the imbroglio persists ) and lastly (if I can use that word) , because it works with minimal changes for Naren , the program is mostly in order. So , something else is amiss. Please guide me on this . Should I sent in the routing tables of the two machines ? Well anyway , the tables of both the machines look totally different , and I think , the problem lies elsewhere. My 3rd question : 3) Does a Linux box have to be configured to take a hub/switch ? If yes , how ? We have not done any such configuration , since the switch was installed . But , the question persists ... How can ftp ,ssh , rsh , rlogin , telnet , ping , etc work , in the absence of the 2 Linux boxes , being configured , to deal with the switch ? Please guide me on this , Warm Regards, ([EMAIL PROTECTED]) Shyam