1. 05 Jun, 2002 1 commit
    • Leigh B. Stoller's avatar
      Changes to sshtb. Remove sshremote, and convert sshtb into a perl · 231fc2b1
      Leigh B. Stoller authored
      script that checks the database to see if local or remote. The problem
      with this is that the ssh syntax makes it hard to determine the host
      name by inspection. Would need to parse all the ssh args (bad idea),
      ot work backwards and try to figure out the difference between the
      command (which is not a string but a sequence of args) and the host
      and the preceeding ssh args. Hell with that! Changed sshtb to require
      a specific -host argument. Read the args and look for it. Error out of
      not found, to catch improper usage.
      
      The moral of this update: "sshtb [ssh args] -host <host> [more args ...]
      231fc2b1
  2. 02 Apr, 2002 1 commit
  3. 01 Apr, 2002 1 commit
    • Leigh B. Stoller's avatar
      First cut at supporting RON (or more generally, remote nodes). · bd587829
      Leigh B. Stoller authored
      * tmcd/ron: A new directory of client code, based on the freebsd
        client code, but scaled back to the bare minimum. Does only account
        and group file maintenance. I redid the account stuff so that only
        emulab accounts are operated on. Does not require a stub file, but
        instead keeps a couple of local dbm files recording what groups and
        accounts were added by Emulab. There is a ton of paranoia checking
        to make sure that local accounts are not touched.
      
        The update script that runs on the client node detaches so that the
        ssh from boss returns immediately. update can also be run from the
        node periodically and at boottime. The script is installed setuid
        root, but checks to make sure that *only* root or "emulabman" has
        invoked it.
      
      * utils/sshremote: New file. For remote nodes, instead of using sshtb,
        use sshremote, which ssh's in as "emulabman", which needs to be a
        local non-root user, but with an authorized_keys file containing
        boss' public key.
      
      * web interface changes: Allow user to specify his own public key in
        addition to the emulab key.
      
        Add option in showexp page to update accounts on nodes in the
        experiment. I was originally intending to do this from approveuser,
        but this was easier and faster. I will add an option to do it on the
        approveuser page later.
      
      * libdb.pm: Add a TBIsNodeRemote() query to see if a node is in the
        local testbed or a pcRemote node. Currently, this test is hardwired
        to a check for class=pcRemote, but this will need to change to a
        node_types property at some point.
      
      * node_update: Reorg so that there is a maximum number of children
        created. Previously, a child was forked for each node, but that
        could chew up too many processes, especially for remote nodes which
        might hang up. For the same reason, we need to "lock" the experiment
        so that it cannot be terminated while a node_update is in progress.
        Might be to relax that, but this was easy for now. Also add
        distinction between local and remote, since for remote we use
        sshremote insted of sshtb. Various cleanup stuff
      
      * mkacct; When generating a new account, include user supplied pub key
        in the authorized keys file, in addition to the eumlab generated
        key. Both keys are stored in the DB in the users table. Anytime we
        update an account, get a fresh copy of the emulab pub key, in case
        user changes it.
      bd587829
  4. 12 Feb, 2002 1 commit
  5. 26 Sep, 2001 1 commit
  6. 19 Sep, 2001 1 commit