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CVS Client/Server

CVS Client/Server. CVS (GNU CVS) Open source Cross-platform Designed as a client/server application Remote access Client cvs: uses rsh or ssh to establish a session to the remote server, issues CVS command and request Server cvs: sends the results back to the requestor (client)

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CVS Client/Server

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  1. CVS Client/Server • CVS (GNU CVS) • Open source • Cross-platform • Designed as a client/server application • Remote access • Client cvs: uses rsh or ssh to establish a session to the remote server, issues CVS command and request • Server cvs: sends the results back to the requestor (client) • Any platform • “Server” • No CVS server daemon running on a machine dedicated as CVS server !!!

  2. CVS Client-Server Architecture SCS AFS SCS NFS flora SCS pubs • /afs/slac/g/cd/soft/cvs (repository) • /afs/slac/g/cd/soft/ref (reference) • /usr/local/bin/cvs slcsun1 LAVC esdslx02 (Linux) /usr/local/bin/cvs NT VMS UNIX • CVS “Server” • any public UNIX machines • access to AFS or/and NFS • (CVS respository , reference) • /usr/local/bin/cvs available • slcsun1 • meets such requirements • in our control (easy management, security) • memory consumption estimate needed • a dedicated CVS server • CVS Client • any machines • Unix, VMS, NT… • CVS available • an example • esdslx02 (linux) • /usr/local/bin/cvs rsh or ssh

  3. An Example CVS Clinet : esdslx02 CVS “Server”: slcsun1 • Connecting with RSH • Verify if rsh works • # rsh -l jingchen slcsun1 'echo $PATH‘ • …/u/cd/jingchen/bin:/usr/local/bin:/usr/afsws/bin… • Remote CVS via rsh • # cvs -d :ext:slcsun1:/afs/slac/g/cd/soft/slaconly/cvs checkout script • cvs server: Updating script • Connecting with SSH • Verify if rsh is disabled • # rsh slcsun1 ls • permission denied • Remote CVS via ssh • # setenv CVS_RSH ssh • # cvs -d :ext:slcsun1:/afs/slac/g/cd/soft/slaconly/cvs checkout script • Connecting with RSH • Enable RSH • # cat /etc/inetd.conf • shell stream tcp nowait root /usr/etc/tcpd /usr/sbin/in.rshd • # cat .rhosts • esdslx02.slac.stanford.edu jingchen • Verify if CVS is available • # which cvs • /usr/local/bin/cvs • No need to start a CVS server daemon! • CVS repository accessible via AFS • # ls /afs/slac/g/cd/soft/slaconly/cvs • Connecting with SSH • Disable RSH • # mv .rhosts .rhosts.old

  4. CVS Client on VMS • Tests done: • Made SSH2 available • Enabled RSH • CVS server on UNIX • No particular requirement (or setup) • access to AFS or/and NFS (CVS respository , reference) /usr/local/bin/cvs available • A test: linux (client) -> slcsun1 (server) working!!! • Conclusion: • SSH no longer an issue! • Server is OK! • KenB in progress “… the VMS side will work. The AFS token is another issue. We need to set up an account, if we can, that does not have a token expiration …”

  5. CVS Client on NT • Test with Netbean (Greg) • A simple test • From NT command line (DOS) • Software: ComponentSoftware CVS for Windows • http://www.componentsoftware.com/products/cvs/ • Setup and test

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