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##### Setting up the Utah Network Testbed software
##### Robert Ricci
##### Last updated June 5, 2001
##### Tested on FreeBSD 4.3

##### Step 0

First of all, the machine should be configured correctly for the network it is
on, have the root password set, etc.

##### Step 1 - Package installation

Install the necessary packages. The following are necessary, and available as
FreeBSD ports:

apache+mod_ssl-1.3.19+2.8.2 The Apache 1.3 webserver with SSL/TLS functionality
cvsupd-bin-16.1     A general network file distribution system optimized for CV
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fping-2.2b1         Quickly ping N hosts w/o flooding the network
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gmake-3.79.1        GNU version of 'make' utility
isc-dhcp-2.0.5      ISC Dynamic Host Configuration Protocol client and server c
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linuxthreads-2.1.3_2 POSIX pthreads implementation using rfork to generate kern
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mod_auth_mysql-2.20 Allows users to use MySQL databases for user authentication
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mod_php3-3.0.18     PHP3 module for Apache
mysql-client-3.23.36 Multithreaded SQL database (client)
mysql-server-3.23.36 Multithreaded SQL database (server)
otcl-1.0a6          MIT Object Tcl
p5-DBI-1.15         The perl5 Database Interface.  Required for DBD::* modules
p5-Mysql-modules-1.2215 Perl5 modules for accessing MySQL databases
p5-SNMP-4.2.0       A perl5 module for interfacing with the CMU SNMP library
p5-SNMP_Session-0.83 A perl5 module for providing rudimentary access to SNMPv1 a
rpm-3.0.6_5         The Red Hat Package Manager
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tcl-8.2.3           Tool Command Language
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tcl-sql-20000114_1  TCL module for accessing MySQL databases
ucd-snmp-4.2        An extendable SNMP implimentation

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Note on TCL: Do NOT install tcl83 - otcl, which is used by some testbed scripts,
requires tcl82. When you install the tcl-sql package, it will be put in the library
directory for the latest version of tcl you have installed, so if you have tcl83
installed at the time, you will have tcl-sql support under 8.3.X, but not under
8.2.X (which testbed scripts use)

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##### Step 2 - LEDA

Currently, the LEDA library is required to compile some testbed software (we
hope to remove this dependency at some point.) The simplest place to install it
is /usr/testbed/LEDA. If another location is used, be sure to use the
--with-LEDA=<dir> option to configure in the next step. The home page for LEDA
is at:

http://www.algorithmic-solutions.com/as_html/products/products.html

##### Step 3 - Testbed tree configuration/installation

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It is best to add the following group before creating the following
directories. Basically, testbed software should be in the tbadmin
group. Run this command as root.

	pw groupadd tbadmin -g 99
	
Configure the testbed tree. For example, I have the testbed source in
~/testbed, and use the ~/tbobj directory to do my builds in.
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cd ~/tbobj
~/testbed/configure
gmake
gmake boss-install
gmake post-install

The 'post-install' target needs to be done as root, because certain scripts
needs to be setuid root.

##### Step 4 - Database Creation

Create the database. Use a dump of an old database, or use the SQL commands in
testbed/sql/database-create.sql to create an empty one with the right tables.
(Sorry, no help on filling them in yet). You'll also need to create some special
users. do with by running:
mysql mysql < testbed/aql/users-create.sql

##### Step 5 - Misc. Files and Services

SNMP MIBs - MIBs go in /usr/local/share/snmp/mibs. In addition to the ones
installed by the ucd-snmp package, you'll need MIBs for Cisco and Intel
switches. You can grab the Cisco MIBs from:
ftp.cisco.com/pub/mibs
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The Intel ones can be found from the site for the 510T switches at:
http://www.intel.com/network/connectivity/products/exp510t.htm
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If you have SNMP-controllable APC power controllers, grab the 'PowerNet MIB'
from:
http://www.apcc.com/tools/download/
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Now, a step that involves some voodoo I don't quite understand: make sure that
/usr/local/share/snmp/mibs/.index exists (touch it if it doesn't), and chmod it
to 666. Now, do an snmpwalk of some device (eg. 'snmpwalk cisco1 public') -
this will force the .index file to get rebuilt. Suggestions of better ways to
rebuild this file are welcome!
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DNS zones - Make sure to include the DNS configuration files from /etc/named/
Stick:
named-enable="YES"
in /etc/rc.conf

NFS - Make the machine an NFS server and client with the following in /etc/rc.conf:
nfs_server_enable="YES"
nfs_server_flags="-u -t -n 16"
nfs_client_enable="YES"

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You also need some cross mounts between bossnode and fs. On bossnode:

	fs.mini.emulab.net:/z/users     /users  nfs     rw      0       0
	fs.mini.emulab.net:/z/proj      /proj   nfs     rw      0       0
	fs.mini.emulab.net:/z/groups    /groups nfs     rw      0       0
	fs.mini.emulab.net:/var         /usr/testbed/usersvar nfs ro,soft,-b    0

Note that you will need exports on fs (see setup-ops.txt).
	

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tftp - Should have the following line in /etc/inetd.conf
tftp    dgram   udp wait    nobody  /usr/libexec/tftpd  tftpd /tftpboot /proj
(make sure to HUP inetd)

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inetd - In FreeBSD, you need to prevent inetd from rate-limiting connections
(an attempt to defend against DOS attacks, but very annoying in a testbed
environment). Put the following in /etc/rc.conf:
inetd_flags="-wW -R 0"

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SSH - If possible, grab the old machine's SSH host keys (from
/etc/ssh/ssh_host*) and HUP sshd. Also, get the root identity and known_hosts
files from the old machine (/root/.ssh/{identity,identity.pub,known_hosts}) - Make
sure to preserve file and directory permissions. You'll probably also want to add
PermitRootLogin yes
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to /etc/ssh/sshd_config (and HUP sshd) so that you can log in as root remotely
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Grab the old /etc/master.passwd file, and run 'cd /etc && pwd_mkdb -p master.passwd'
Also grab the old /etc/groups file
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/etc/syslog.conf needs entries for some of our own services. Example:
!bootinfo
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*.*                     /usr/testbed/log/bootinfo.log
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!tmcd
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*.*                     /usr/testbed/log/tmcd.log
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!capture
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*.*                     /usr/testbed/log/tiplogs/capture.log
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!dhcpd
*.*                     /usr/testbed/log/dhcpd.log
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All of these logs should be created before you HUP syslogd or reboot - All of them
can be world-readable
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DHCP - Need to install the dhcpd config file. The old (deprecated) location was
/usr/site/bin/dhcp/dhcpd.conf. The new location (and the place you should
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install it if you used the 'isc-dhcpd' port) is /usr/local/etc/dhcpd.conf .
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After you've filled the nodes and interfaces tables, (described in the database
setup documentation) use the dhcpd_makeconf script, along with the template in
the dhcpd directory of the CVS repository, to generate the dhcpd.conf file.
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RC scripts - The mysql-client rc script needs to run before ANY testbed
services are started! The mysql server should also be started early in the
process.  boot process. You can ensure this by changing directories to
/usr/local/etc/rc.d and renaming 'mysql-client.sh' to '1.mysql-client.sh' and
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'mysql-server.sh' to '2.mysql-server.sh'. Furthermore, dhcpd needs to start
before proxydhcp, so rename 'dhcpd.sh' to '2.dhcpd.sh'. You will also need to
install the '3.testbed.sh' and 'cvsupd.sh'  scripts (in the rc.d directory of
the testbed tree)
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Logs - To avoid filling up /var, link /var/log/testbed to /usr/testbed/log

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CVSUPD - Minor changes to images can be distributed at boot time with cvsup.
See doc/newimage.txt for an overview of setting up a sup tree. Make sure to
copy over the old one (if it exists), and make sure cvsupd is running (there's
an example rc.d script in the rc.d/ directory of the testbed CVS tree.) Create
a group named 'root', with any gid. This is because cvsup uses the game of
the group, rather than its gid, to determine what group the file should belong
to. Since Linux uses 'root' instead of BSD's 'wheel', this is needed for the
Linux sup tree.
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Apache - You should have installed apache with mod_ssl, and php3 (NOTE: Version
3.0.17 is known to have broken file uploading support. Use 3.0.16 or 3.0.18 -
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newer versions are likely to work as well.) We have an auto-generated config
file that you can install by changing to the apache subdir of your build tree
and running 'gmake install'. Some apache installtions may expect to find their
config file at /usr/local/etc/apache/httpd.conf, rather than apache.conf (where
ours gets installed.) Just symlink apache.conf to httpd.conf if you have
trouble with this. Also our config file expects to find SSL certificates in:
/usr/local/etc/apache/ssl.crt/www.<sitename>.crt and
SSLCertificateKeyFile /usr/local/etc/apache/ssl.key/www.<sitename>.net.key
(where <sitename> is OURSITE from the configure defs file.) Make sure yours
go there, or edit the apache.conf file appropriately.
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Cron jobs: We currently have two cron jobs running for the testbed. Both can be
run out of /etc/crontab
45	1	*	*	*	root	/usr/testbed/sbin/backup
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*/5	*	*	*	*	root	/usr/testbed/sbin/node_status
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Don't forget to HUP cron!

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ntpd: The boss node should be running ntpd. In FreeBSD, you can enable this with
the line
xntpd_enable="YES"
in /etc/rc.conf. Check out the ntpd man page for configuration information.

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You may want a program to allow administrator-types to run stuff easily as root.
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Here at Utah, we have two: su1 (developed locally) and sudo (installed from
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FreeBSD ports) - don't forget to get it set up! Our strategy on boss was to
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give everyone in the wheel group unrestricted sudo access with:
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%wheel  ALL=(ALL) NOPASSWD: ALL
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checkpass - in the testbed software:
    cd tbsetup/checkpass/cracklib,2.7
    make all
    make install
  Note that these steps depend on having the dictionaries 
  /usr/share/dict/{propernames,words} available (standard for FreeBSD).
  If they're in different places, edit the obvious makefile vars.
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syslogd - Normally, sylogd on FreeBSD is run with the '-s' flag to prevent
logging to it over the network. We use network logging, so we need this
feature. Re-enable it by putting:
syslogd_flags=""
in /etc/rc.conf

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suidperl - In order for setuid perl scripts to work properly, you'll need to:
chmod u+s /usr/bin/suidperl

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SSH keys - Generate an SSH key for root by running ssh-keygen. Put an empty
passphrase on it. You'll want to copy boss:/root/.ssh/identity.pub to
ops:/root/.ssh/authorized_keys so that boss has the appropriate access on ops.

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##### Step 6 - Stuff to copy from an old boss node

If you're simply moving from one boss node to another, there are a few files
and trees you'll want to make sure to copy over:
/usr/testbed/images/
/tftpboot/
/etc/namedb/
/etc/master.password
/etc/group
/usr/testbed/sup/
/usr/site/

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##### Last-minute synching
Right before bringing the new boss node online (if copying from an old boss node),
make sure to have copy over the latest versions of:
* The database
* The sup tree
* The dhcpd.conf file
* The DNS records
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* The password file