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Information necessary for keeping boss and ops node up-to-date. This
file contains updates that must be made outside of the database and
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the install tree (ie. /usr/testbed).
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This file is in the same format at the FreeBSD UPDATING file, whis is
to say, in reverse chronological order, with the date of the change
in YYYYMMDD format.

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After each date, you will find one of the following, which tells you
when the action needs to be performed.

Before build - before doing a 'gmake' in your testbed object tree on
	boss and/or ops	
After install - after doing a 'gmake boss-install' on boss or
    'gmake ops-install' on ops

Note that some instructions may have steps that need to occur at a few
different points in the install process - these are marked with the
earliest time one of the steps needs to occur.

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20080501: Before install.
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	  Create the per project admin mailing lists if you enabled
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	  mailman support (MAILMANSUPPORT set to 1 in defs file).

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          This should be done before the final boss-install.
          Unfortunately, it also depends on some modification
          associated with this commit.  Thus do the following

            1) Go to build tree
            2) Reconfigure and build but don't install
            3) Do a "gmake install" in "collab/mailman/".
            4) Go to source tree and run the script
                 sql/create-projadminlists.pl
            5) Go back to build tree and do a "gmake boss-install"

          The script will take a while to run so be patent (It took
          around an hour for Utah's emulab).  It will also create a
          lot of output so you might want to redirect stdout.
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20080219: After install:

          The newnode MFS ssh keys have been updated from protocol 1
          to protocol 2 (rsa key). The new keys were installed in
          /usr/testbed/etc by the top level install target. If you
          plan to add new nodes to your testbed you will want to put the
          new key into the newnode MFS. Do the following as root:

	  mdconfig -a -t vnode -u 1 -f /tftpboot/freebsd.newnode/boot/mfsroot
  	  mount /dev/md1 /mnt
          cat install/newnode_sshkeys/identity >>/mnt/root/.ssh/authorized_keys
 	  umount /dev/mnt
	  mdconfig -d -u 1
	  cd /tftpboot/freebsd.newnode/boot; ./prepare

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20070511: Before build.

	  Install the new publish/subscribe system which is replacing Elvin.
	  DO THIS ONLY IF YOU ARE AN EXISTING SITE WITH ELVIN INSTALLED!
	  On both boss and ops, do the following:

	  * Grab and install the package:

		cd /var/tmp
		fetch http://www.emulab.net/downloads/pubsub-elvincompat-0.8.tbz
		sudo pkg_add /var/tmp/pubsub-elvincompat-0.8.tbz

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          * Add this line to your defs file:

		ELVIN_COMPAT=1

            and reconfig/rebuild/reinstall on bother boss and ops.

	  * Add these lines to /etc/syslog.conf on boss and ops:
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		!pubsubd
		*.*	/usr/testbed/log/pubsubd.log

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            and also this line to /etc/syslog.conf on ops:

		!elvin_gateway
		*.*	/usr/testbed/log/elvin_gateway.log

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	  * Create logfile and restart syslog:

		sudo cp /dev/null /usr/testbed/log/pubsubd.log
		sudo kill -HUP `cat /var/run/syslog.pid`

	  * Start pubsubd:

		sudo /usr/local/etc/rc.d/2.pubsubd.sh start

	  * ON OPS ONLY: start the elvin gateway:

		sudo /usr/local/etc/rc.d/3.elvin_gateway.sh start

	  * ON BOSS ONLY: disable elvind:

		sudo rm -f /usr/local/etc/rc.d/2.elvind.sh

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20070320: Time to upgrade your tftpd.  This has only been tested on
	  FreeBSD 6.x, so if you are still running FreeBSD 4.10, then
	  you can skip this.  The only significant difference (other
	  than going from version 0.33 to 0.48, which is ancillary) is
	  a change to make tftpd work better under load when it hits its
	  "maxchildren" limit.

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	  * See if your tftpd is already up to date on your boss:
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		pkg_info -E 'emulab-tftp-hpa-*'

	    If it reports anything other than "emulab-tftp-hpa-0.48",
	    you should continue.

	  * Grab the new package:

		cd /var/tmp
		fetch http://www.emulab.net/downloads/emulab-tftp-hpa-0.48.tbz

	  * Shutdown and deinstall the old server:

		sudo /usr/local/etc/rc.d/tftpd-hpa.sh stop
		sudo pkg_delete -f emulab-tftp-hpa-0.33

	  * Install and start the new server:

		sudo pkg_add /var/tmp/emulab-tftp-hpa-0.48.tbz
		sudo /usr/local/etc/rc.d/tftpd-hpa.sh start

	  If you do want to update in a FreeBSD 4.10 environment, you will
	  have to build from it from the port.  Make sure you have the
	  recommended port tree installed as /usr/ports and then:

		cd <emulab-srcdir>/install/ports; sudo ./ports-install
		cd /usr/ports/misc/emulab-tftp-hpa
		sudo make
		sudo /usr/local/etc/rc.d/tftpd-hpa.sh stop
		sudo pkg_delete -f emulab-tftp-hpa-0.33
		sudo make install
		sudo /usr/local/etc/rc.d/tftpd-hpa.sh start

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20070317: Before build.

          Due to a change in gcc's handling of c++ bools in functions with
          variable argument lists, you will need to reinstall ulsshxmlrpcpp and
          rebuild/reinstall in your testbed source tree so that the event
          system is recompiled against the new version.

	  * Grab this file from our website and unpack it somewhere convenient
            on your boss node:

                http://www.emulab.net/downloads/ulsshxmlrpcpp-0.1.2.tar.gz

          * Unpack, configure, build, install:

	        cd someplace
		tar xzf ulsshxmlrpcpp-0.1.2.tar.gz
		mkdir ulbuild
		cd ulbuild
		../ulsshxmlrpcpp-0.1.2/configure
		gmake && gmake install

	  * Rebuild your testbed source tree:

	        cd testbed-build-dir
		gmake && gmake install

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20061201: Time to upgrade your mysql ... If you are still running
          FreeBSD 4.10 on your boss node, then you are almost certainly
          running an ancient version of mysql (3.23). In lieu of upgrading
          to FreeBSD 6.1 (the "right" solution, albiet very time
          consuming), you can upgrade your mysql in place. Here is how:

	  * Grab this file from our website and place it someplace on your
	    boss node with at least 250MB of disk space:

		http://boss.emulab.net/downloads/mysql-5.0.27.tar.gz

          * Unpack it:

		cd someplace
		tar zxf mysql-5.0.27.tar.gz

	  * Configure:

		cd mysql-5.0.27
		./configure --localstatedir=/var/db/mysql \
			--without-debug \
			--with-readline \
			--without-libedit \
			--without-bench \
			--without-extra-tools \
			--with-libwrap \
			--with-mysqlfs \
			--with-low-memory \
			--with-comment='FreeBSD build for Emulab' \
			--enable-thread-safe-client

	   * Build and install:

		make
		sudo make install

           * You want to grab a new version of this file from emulab:

		http://boss.emulab.net/downloads/2.mysql-server.sh.in

	     and place it in your testbed source directory, in the rc.d
	     subdir. Then go to your object tree, cd into the rc.d
	     directory and type gmake. You probably just want to copy the
	     new file out to /usr/local/etc/rc.d/ instead of doing an
	     install.

           * Reboot your boss node.
		

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20060831: Mysql.pm needs to be patched on boss

     This needs to be done before installing rev 1.254 of db/libdb.pm.in

     Locate Mysql.pm which should be somewhere in 
     /usr/local/lib/perl5/site_perl:

       find /usr/local/lib/perl5/site_perl -name Mysql.pm

     Than go into the "patches" directory apply the patch "Mysql.pm.patch":

       patch /usr/local/lib/perl5/site_perl/.../Mysql.pm < Mysql.pm.patch

     Replacing "/usr/local/lib/perl5/site_perl/.../Mysql.pm" with the real
     location of Mysql.pm on your system.

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20060717:
     Watch out for revision 4.74 in sql/database-migrate.sql ... You want
     to do that revision by hand so that you do not lose important data.

     (Some sites script the contents of sql/database-migrate.sql)

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20060606:

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      Be sure to firewall the mysql port (3306) at your router so that
      outside networks cannot access that port on your ops node (we now
      run mysqld on ops).

20060525:  Do this before installing tbsetup/libtblog.pm.in rev 2.14
      It would be best if your Emulab was down during this change.
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      No schema changes, but due to a bug in libtblog.pm.in the uid &
      exptidx columns got swapped for new values inserted into the
      session_info table after the 4.56 schema change.  This is fixed
      in revision number 2.14 of libtblog.pm.in.

      The values of session_info are currently not used by any testbed
      code.  However, it is still a good idea to fix the existing data
      in the database.  To do so determine the "session" where the
      values got swapped.  For emulab.net that was 9359824:

      +---------+-------+---------+
      | session | uid   | exptidx |
      +---------+-------+---------+
      | 9359747 | 31359 | 24893   |
      | 9359824 | 24893 | 31359   |
      +---------+-------+---------+

      Once this is determined, lock the session_info table, swap
      the columns, install the fix, than unlock the table:

        lock tables session_info write;
      
        create temporary table session_info_wk as select * from session_info
          where session >=SESSION;
        replace into session_info select session,exptidx,uid 
          from session_info_wk;
        drop table session_info_wk;

        [Now install the new code]
  
        unlock tables;

      Where SESSION is the session number where the values where first 
      swapped, 9359824, for emulab.net.

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20060322: Before installing tbsetup/ns2ir/sim.tcl.in rev 1.109 (3/22/06).

	This revision introduces a new features/desire pair called
	"firewallable".  All nodes in a firewalled experiment require
	this feature from a node.  So you will need to do:

        insert into node_type_features values ('TYPE','firewallable',0);

	for every node type 'TYPE' which can participate in a firewalled
	experiment.  The current requirement for a 'firewallable' node
	is that it can be powered off (not just power cycled).  This is
	required for proper post-swapout cleaning of nodes.  Another
	attribute to consider is whether you can prevent a node from
	booting anywhere other than the network.  If you have nodes that
	can timeout from PXE boot and that will fall back to booting from
	the hard drive, you may want to NOT make those nodes 'firewallable'.

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20051212: After DB schema is updated, and updated software installed.

         These changes are for shifting from SSH protocol 1 keys to
         protocol 2 keys.

         For users:

	        wap /usr/testbed/sbin/genpubkeys

         this will generate new Protocol 2 (rsa) keys for all users,
         and regen their authorized_keys file. Note that existing sites
         will need to retain protocol 1 keys for users because of old
         images.

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         For boss and ops:

         You must setup a new passphraseless keypair for root on boss.
         To do this, simply run the following command on boss:

                sudo /usr/bin/ssh-keygen -t rsa -N ""

         Next, append the contents of /root/.ssh/id_rsa.pub on boss to
         the /root/.ssh/authorized_keys file on both your ops and boss
         nodes.  Remove any ssh version 1 keys that appear in either
         of these authorized_keys files.  Also, remove the
         authorized_keys2 file (if it exists) from the /root/.ssh
         directory on boss and ops.  Next, change the
         /etc/ssh/sshd_config (sshd config) file on both boss and ops
         to try ssh protocol 2 first: Edit the line that reads
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         "Protocol 1,2" to be "Procotol 2,1".  Finally, be sure to
         remove any "Protocol" directives from /root/.ssh/config on
         boss and ops.
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         In your database:

         You'll need to update the key stored in the node/ssh_pubkey
         variable to contain the public half of the new v2 rsa key you
         created for root on boss.  This key will be automatically
         distributed to the nodes as they boot up when using images
         dating from late 2004 onward.

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         For your default disk images:

         Add the contents of /root/.ssh/id_rsa.pub on your boss node
         to the /root/.ssh/authorized_keys file in each of your
         default disk images.  Remove any version 1 ssh keys that
         remain in authorized_keys.  Also, remove any authorized_keys2
         file that might exist in the /root/.ssh directory.  Next,
         edit the /etc/ssh/sshd_config file, changing the "Procotol
         1,2" line to "Protocol 2,1".  Re-create the modified images
         (of course).

         Note on user disk images:

         User images may still require access via ssh version 1, so
         don't delete the ssh version 1 key on your boss node
         (/root/.ssh/identity[.pub]).  The ssh wrapper command (sshtb)
         has been modified to try authenticating with both ssh protocols
         to preserve backward compatibility with existing user images.

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20051212: After DB schema is updated, and updated software installed.

          Fix an error in the statistics gathering code, that was
          causing duplicate swapin records in some case. From the source
          directory:

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		perl sql/fixstats-swapin.pl | mysql tbdb
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20050818: Anytime after the DB schema is updated

	Load the initial contents of the new knowledge_base_entries table
        from sql/knowlbase-create.sql

		cat sql/knowlbase-create.sql | mysql tbdb


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20050707: Before build

	Decide if you want CVS support turned on. This is some simple
        support for per-project CVS trees, stored as /proj/$pid/CVS.
        The main thing is that you can use the cvsweb interface. If you
        want it, in your defs file:

		CVSSUPPORT=1

	After your build and install:

		sudo /usr/testbed/sbin/cvsinit

        which creates the initial CVS trees in all of the existing project
        trees.

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20050205: Before build/config

	* Install the rsync port from /usr/ports/net/rsync


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20041108: Anytime

	* Update sql/database-fill-suplement.sql stuff.

		cat sql/database-fill-suplement.sql | mysql tbdb

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20041108: Before build
	We've fixed a bug in the elvin libraries that underlie our
	event system. You'll want to install the new one from the
	port. You need to do this on both boss and ops. Copy the
	contents of install/ports/libelvin to /usr/ports/misc/libelvin.
	Then, change to that directory and run 'make deinstall reinstall'
	to get the new version of the port installed. Now, you'll need to
	do a clean rebuild of everything in the testbed source tree, by
	doing a 'gmake clean' before the usual 'gmake ops-install' and
	'gmake boss-install'.

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20041104: Before build
	A new directory, pxe/freebsd, contains the diffs necessary
	to build your own pxeboot program more easily.  The entry
	for 20040112 below instructs you to "Rebuild pxeboot kernel
	from source".  Now you can actually do that!  See the README
	file in pxe/freebsd.  You should rebuild your pxeboot program
	to take advantage of a couple of new features: the ability
	to specify an explicit machine from which to TFTP load a file,
	and the ability to specify command lines to Linux (actually,
	to LILO).

	You will need to update your frisbee/freebsd MFSes to take
	full advantage of recent changes.  A new file, doc/update-mfs.txt,
	describes the process.  Read it. Believe it. Live by it.

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20041029: Before build
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	The ulsshxmlrpcpp package was updated to version 0.1.1:

	     http://boss.emulab.net/downloads/ulsshxmlrpcpp-0.1.1.tar.gz

             cd /someplace
	     tar zxf ulsshxmlrpcpp-0.1.1.tar.gz
	     cd ulsshxmlrpcpp-0.1.1
	     configure
	     gmake
	     sudo gmake install

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20041027: After install (be sure to update sitevars):

	A new sitevariable was added to hold root's ssh public key.
	When nodes boot using the latest image, the public key is
	handed across via tmcd and statshed in /root/.ssh. This
	localizes the image (wrt the root pub key) to the local
	testbed.

	Using the web interface in red dot mode, go to the Edit Site
	Variables link and store boss:/root/.ssh/identity.pub into the
	"node/ssh_pubkey" site variable. Make sure there are no
	newlines when you paste it in.

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20041025: After install
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	Run sql/fixstats_swapmod.pl to fix up stats records.

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		sql/fixstats_swapmod.pl | mysql tbdb

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	Run "/usr/testbed/etc/rc.d/and start" as root on ops to start
	up the auto nice daemon.  This daemon is not required,
	however, it can save you from greedy users that consume too
	much CPU and cause experiment swapin to fail.

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20040930: Before build

	You need to update your defs-* file to include some new configure
	time variables.  These are:

	SSLCERT_COUNTRY
	SSLCERT_STATE
	SSLCERT_LOCALITY
	SSLCERT_ORGNAME
	TESTBED_NETWORK
	TESTBED_NETMASK
	BOSSNODE_IP
	USERNODE_IP
	CONTROL_ROUTER_IP
	CONTROL_NETWORK
	CONTROL_NETMASK
	PRIVATE_NETWORK
	PRIVATE_ROUTER
	PRIVATE_NETMASK
	PUBLIC_NETWORK
	PUBLIC_ROUTER
	PUBLIC_NETMASK
	DHCPD_DYNRANGE

	See defs-example for details.
	YOU MUST RERUN configure AFTER SETTING THESE!

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	New SSL version of the XMLRPC server.

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	* Make sure python is installed on both boss and ops. If not,
          the port is located in:

		/usr/ports/lang/python		

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	* Install this port on both boss and ops:

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		/usr/ports/security/py-m2crypto

          then patch a silly bug on both boss and ops:

		patch -f -p0 -l -i patches/m2crypto.patch
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	* Reconfig, rebuild, and reinstall the testbed software on your
	  boss node. Be sure to pick up changes in sql/database-migrate.

	* Install some ssl files on boss:

		cd /usr/object/tree/ssl
		gmake usercert-install

        * Install new version of testbed startup script on boss
	  
		cd /usr/object/tree/rc.d
		sudo gmake install

        * Generate SSL certificates for existing emulab users

		cd /usr/src/tree/sql
		./initcerts.pl

	* Add the following lines to /etc/syslog.conf on boss

	  !sslxmlrpc
	  *.*                            /usr/testbed/log/sslxmlrpc.log

	* Add the following line to /etc/newsyslog.conf on boss

	  /usr/testbed/log/sslxmlrpc.log          640  7     1000 *     Z

        * Create the log file and restart syslog on boss
	
		sudo touch /usr/testbed/log/sslxmlrpc.log
		sudo kill -HUP `cat /var/run/syslog.pid`

        * Fire up the SSL XMLRPC server

		sudo /usr/testbed/sbin/sslxmlrpc_server.py


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20040816: Before build
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	The event system has moved to users.emulab.net.

	* Install the elvin libraries and daemon on users.emulab.net.

	* Pick up this package:

	     http://boss.emulab.net/downloads/ulsshxmlrpcpp-0.1.0.tar.gz

             cd /someplace
	     tar zxf ulsshxmlrpcpp-0.1.0.tar.gz
	     cd ulsshxmlrpcpp-0.1.0
	     configure
	     gmake
	     sudo gmake install

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	* Install this port (might already be install).

		/usr/ports/databases/py-MySQLdb

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	* Reconfig, rebuild, and reinstall the testbed software on your
	  boss node.

	* Reconfig, rebuild, and reinstall the testbed software on your
          users node. 

		ssh users
		cd /your/object/tree/obj/
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		gmake ops-install
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        * Install the new elvind config file on boss and restart elvind
          Note that this is not done as part of toplevel install.

		cd /your/object/tree/obj/event/etc
		sudo gmake install
		sudo /usr/local/etc/rc.d/2.elvind.sh stop
		sudo /usr/local/etc/rc.d/2.elvind.sh start

	* Restart tmcd and stated on boss (note that if you plan to just
	  reboot boss, a lot of these steps can be skipped).

		sudo /usr/testbed/sbin/tmcd.restart
		sudo kill -USR1 `cat /var/run/stated.pid`

        * Install the elvind config file on users.
          Note that this is not done as part of toplevel install.

		ssh users
		cd /your/object/tree/obj/event/etc
		sudo gmake control-install

	* Install new rc.d file on boss.
          Note that this is not done as part of toplevel install.

		cd /your/object/tree/obj/rc.d
		sudo gmake install

        * Install the rc.d file that starts elvind on users.
          Note that this is not done as part of toplevel install.

		ssh users
		cd /your/object/tree/obj/rc.d
		sudo gmake control-install

        * Start the elvin server on users.emulab.net:

		ssh users
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		sudo /usr/local/etc/rc.d/2.elvind.sh start
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	* Create the ops certificate (on boss) and copy it to your users node.

		cd /your/object/tree/obj/ssl
		gmake ctrlnode.pem
		sudo scp ctrlnode.pem users:/etc/emulab/client.pem
		sudo ssh users chmod 600 /etc/emulab/client.pem
		sudo scp emulab.pem users:/etc/emulab

        * Install the tmcd client stuff on users.emulab.net.

		ssh users.emulab.net
		cd /your/object/tree/obj/tmcd/freebsd
		sudo gmake control-install

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	* Update sql/database-fill-suplement.sql stuff.

		cat sql/database-fill-suplement.sql | mysql tbdb

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        * Create the emulab-ops/opsnode experiment. Do this the same way
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          that hwdown is created in setup-db.txt. 

          Then go to the experiment information page (in red dot mode)
          for the emulab-ops/opsnode experiment, and then click on the
          "Edit Experiment MetaData". In the "Swapping" Section, make
          sure Idle Ignore is checked, and the other three entries
          (Swappable, Idle-Swap, Max Duration) are unchecked.
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	* Make sure your source tree on ops is updated. Then, from that source
	  tree, run 'install/newclient -o'. (Note: You will probably have to
	  turn on the 'executable bit' for this script before running it, with
	  'chmod a+x install/newclient'.) This will allow ops to check into the
	  testbed.

	* On boss, run: 'wap /usr/testbed/libexec/newnode ops' to actually add
	  ops to the database.
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	* Place the ops node into the above experiment:

		wap nalloc emulab-ops opsnode ops

	* Make sure that netcat is installed.

		cd /usr/ports/net/netcat
		sudo make
		sudo make install
		
	* Add entry to /etc/services for elvin:

		elvin		2917/tcp

	* Change the CNAME event-server to your zone file from boss to ops.

		event-server	IN	CNAME	ops

	* Start the alternate inetd service so that old images trying to
	  connect to the event server are redirected to users.emulab.net.
	  Be sure to replace boss.foo.bar with the right name.

		sudo inetd -a boss.foo.bar -p /var/run/testbed-inetd.pid \
			/usr/testbed/etc/inetd.conf

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	* Stick boss's host keys onto ops so that users do not get
	  those silly questions about adding know hosts.

		sudo cat /etc/ssh/*.pub |
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			ssh ops '(cat > /etc/ssh/ssh_known_hosts)'
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20040815: After install
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	After some changes to ptopgen, you'll need to run the following SQL
	command to keep vnodes working properly:

	update os_info set nextosid='FBSD-STD' \
	    where osid='emulab-ops-FBSD-JAIL';

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20040809: After install
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	New syslog file for logging requests to the XMLRPC server.

		sudo touch /usr/testbed/log/xmlrpcbag.log

	Add these two lines to /etc/syslog.conf and then HUP syslogd:

		!xmlrpcbag
		*.*                      /usr/testbed/log/xmlrpcbag.log

        Add this line to /etc/newsyslog.conf:

		/usr/testbed/log/xmlrpcbag.log      640  7     1000 *     Z

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	Add a new CNAME for boss to /etc/namedb/<OURDMAIN>.db.head -
	event-server . Re-run named_setup on boss to make this change
	take place. In the future, we may move this CNAME to ops.

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20040713: After install
Leigh B. Stoller's avatar
Leigh B. Stoller committed
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	For new distributed routing support, must first run this script as
        root to generate a data file for each existing experiment.

		sudo sql/gentopmaps.pl

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20040625: After install
Leigh B. Stoller's avatar
Leigh B. Stoller committed
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	After updating to revision 1.257 of sql/database-migrate.txt,
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        run sql/devlnodes.pl to clear out all of the non reserved
        pcvm nodes. Be sure to do a current install of the software, and
        then:

		update node_types set isdynamic=1 where type='pcvm';

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20040615: Before build
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	If you update the ports on your boss node, you'll need to take
	into accout that FreeBSD is in the process of changing how its
	rc.d scripts work - add the following two lines to the bottom
	of your /etc/rc.conf on boss:
	  dhcpd_enable="YES"
	  apache_enable="YES"

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20040601: Before build
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	The p5-Time-HiRes port is now required on both boss and ops -
	install it from /usr/ports/devel/p5-Time-HiRes .
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20040420: Before build
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	Switched web search button backend from webglimpse to swish-e.
        Just need to go to /usr/ports/www/swish-e and install the port.

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20040315: Before build

	XMLRPC Server. Install this port:

		/usr/ports/databases/py-MySQLdb

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20040303: Before build
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	Fixed the way we handle the certificate for capture with tiptunnel.
	We no longer hard-code the certificate digest in nodetipacl.php3 .
	However, as a result, we must place this fingerprint in a publically-
	readable file on boss. So, if you have serial lines that you're
	running with capture:
	1) Copy your /usr/testbed/etc/capture.pem file from your tipserver to
	boss, if it isn't there already.
	2) In /usr/testbed/etc/ on boss, run: 'openssl x509 -sha -noout
	-fingerprint -in capture.pem > capture.fingerprint', and make this
	file world-readable.

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20040302: Before build
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	Changed the length of the node_id columns from 10 to 32. Make sure
	you re-compile and restart all daemons written in C (such as
	tmcd, tevd, and the event schedulers) before putting any nodes in
	the database with names longer than 10 characters.

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20040226: After install
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	Re-worked the way named_setup handles virtual nodes and unroutable
	IP addresses - no point in handling the two differently. Thus, the
	'vnodes.<OURDOMAIN>.db' DNS zone file is no longer generated.
	Instead, if you have a mix of routable and unroutable IP addresses,
	you'll need to switch to using the '<OURDOMAIN>.internal.db' zone
	file - see Step 6 of doc/setup.txt for instructions on setting up
	this file.

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20040202: Before install:

	batchexp -q -i -w -f -n -S 'System Experiment' \
             -L 'System Experiment' \
             -E 'Nodes in limbo during nfree - DO NOT DELETE' \
             -p emulab-ops -e nfree-locked

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20040121: After install
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	Changed the 3.testbed.sh rc.d script to handle 'start' and 'stop'
	arguments properly. Install a fresh copy of rc.d/3.testbed.sh into
	/usr/local/etc/rc.d .

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20040120: After install
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	Bumped up the sizes on some buffers to help network performance.
	Add the following two lines to /etc/sysctl.conf:

	net.local.dgram.maxdgram=65536
	net.local.dgram.recvspace=65536


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20040112: After install
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       Big change to bootinfo sequence.

       * Update DB with new contents of sql/database-fill.sql *and
         sql/database-fill-suplement.sql.
       * Rebuild pxeboot kernel from source (src/sys/boot/i386/emuboot).
         Install emuboot to /tftpboot/pxeboot.emu
       * Install new version of dhcpd.conf file that has all the PXE
         crap removed and includes the single line:

		filename "/tftpboot/pxeboot.emu";

       * Restart dhcpd. 
       * Kill proxydhcp. Be sure to install new 3.testbed.sh from the
         rc.d directory to /usr/local/etc/rc.d, or just edit in place
       * Restart bootinfo.
       * Restart stated.
       * Reboot all non allocated nodes so that they go into pxewait mode.

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20031215: Before build
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	The mod_php4 port on boss should be recompiled with the
	'xmlrpc' option, in addition to the 'mhash' option already
	used. Apache on boss will need to be restarted after the new
	port is installed.
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