Sysadmin

Sysadmin Responsibilities

Responsibilities	Ben	Collin	Jordan	Garrett
Install software on Debian (ACL)
Install software on FreeBSD (servers)
Make a CS user account
Change users CS password
Add DNS & DHCP entry
Being able to edit wiki
Make a CS wiki account
Add people to different groups (ldap)
Modification and maintenance of Nagios
DD a new ACL image
Set up a new ACL
Shut down / start up of the entire machine room
Creating and configuring mailing lists (electron)
Admin list moderating
Backups and restore (bacula)
Create and configure jails

Sysadmin basic Training

Training Sections	Ben	Collin	Jordan	Garrett
Disk partitioning
Linux Filesystem layout
How DNS works
TCP, UDP and ICMP packets
Command line tools including IO, redirections and pipes
Installing operating systems (Debian and FreeBSD)
Network debugging tools (tcpdump, ping, tracerout)
Ports
Simple shell scripting

Important Notes:

• ALL of the admin CVS/SVN stuff has been centralized to trac.cs.earlham.edu/admin. You'll need to create a username/password for yourself by running (from quark):

htpasswd /usr/local/trac/adminontrac.htpasswd <username>

• To check out the repository, run (from quark):

svn checkout file:///clients/users/svn/admin

• Chatting on IRC

Curent Sysadmins 2013:

SysAdmin Name	Year	Working time	Progress notes
Wilson	SO	100%	link to notes
Demise	SR	100%	link to notes
Craig	FR	100%	link to notes
Zane	SO	100%	link to notes
Jordan	SO	100%	link to notes
Sonny	JU	100%	link to notes
Elena	SR	40%	link to notes
Kristin	JU	40%	link to notes
Aaron	SR	20%	link to notes
Michael	SR	0%	link to notes

Systems Administration Documentation

Works in Progress To do before Fall 13 starts Handbook (WIP) Temporary Page for Wiki Adjustment Upgrading FreeBSD Fail2Ban on FreeBSD Running Nessus Things to check when things go down Aaron's How-To Pages Son's "Cook" Pages Sysadmin:Installing ACLs

Admin Tasks NEW Add a computer NEW Shutdown/Start NEW Mailman NEW Nagios Backup (needs to be updated after new setup) Contacting all users Welcoming a new sysadmin to the fold RT Ticketing Add a computer

Services Apache2 Databases DNS and DHCP Email System Imager LVM NFS Printers Trac + svn User Management Virtualization ZFS

Servers Physical Servers Virtual Servers and Jails Service Chart Monitoring Quark Forty-two Lovelace Proto Retired Servers

ACL Workstations ACL Installation procedure ACL Package Information ACL Locations Software for Chemistry ACLs Proposed ACL Update policy

Networking Network Layout (as of 08/2006) D224 cable plant Fiber plans Switches Rack notes Public Network Old Network Topo Figures Network layout (May 2007) Alt Network path Sysadmin:UPS Setup

Miscellaneous Contact Information Phone Numbers Web Sites Authentication Information Power Failure UPS Generating SSL Certificates Power draws Working with Sun Hardware Sysadmin:Passwords Patching Linux Kernel Patching FreeBSD Kernel Patching Cable Ends