Network Information
From CTSWiki
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SEAS Router traffic graphs
Proxy access setup
Network Operations Center
The Computing Technology and Services and CEC are responsible for the operation of the Engineering School Wide Network (ESWN).
The ESWN consists of a backbone ethernet network interconnecting the various subnets operated by departments, centers, and lab. CTS and CEC are fully responsible for the operation and maintenance of the backbone network and all routers through which the individual subnets are attached.
The ESWN is connect to the Campus Wide Gibabit Network through another router which is operated by the staff of Neltwork Technology Services (NTS).
WU wireless 802.11g
Summer 2006 various school and departments have started installing meru wireless units (WUFI, WUFI-S) to replace WLAN (blue socket). For more information see Wireless Information
Engineering School Wireless 802.11b
Most of SEAS uses wireless WU bluesocket network, which allow any WU person with a CEC, CS, SEAS or Artsci account to use the WU wireless network. Please see NTS Wireless page for more information.
Access points on the bluesocket network:
- Cupples II 217 Class room
- Cupples II 212 Enviromental Conference Room.
- Cupples II 3 plaza between Cupples II and Jolley
- Lopata 101 Class room
- Lopata Gallery
- Lopata 303
- Lopata 400 CEC Unix lab
- Lopata 406 CTS and CS306 Lab
- Lopata 510 (CSE)
- Sever 200 CEC PC Labs
- Urbaur 211 (Civil Eng Offices )
- Urbaur 218 (Chem Eng Computer Lab)
- Comming soon: EE, ME, grassy areas in front of Cupples II, area south of Lopata. Stop by Lopata 406 if you have questions.
CS has its own Wireless Network that covers the following areas:
- Jolley 5th floor
- Bryan 5th floor
- Bryan 4th floor
For information on using WU wireless, see Wireless Information. You will need to give your mac address to CTS for access.
More information on the ESWN, including such items as node registrations, network numbers for various protocols, etc. is maintained online, as well as a map of the logical layout of the network, which provides links to the various components.
So you want DSL or maybe a Cable modem
Options are Southwestern Bell, Charter, Telocity, Yahoo, Access US.
Once your conection is working your next problem will be sending mail out side of WU if you use Netscape or Outlook, Eudora, and working with WU newsgroups , This is caused by the fact that relaying is prohibited in order to prevent spamming, you will need to set up a tunnel. You can set up a tunnel by using ssh2 (secureCRT). You get a 30 day free license. CTS has licenses for WU noncommercial ssh, OpenSSH, putty SSH.
Here are the steps for secureCRT:
- First open a secureCRT window so you get a connection menu, either create a new entry or edit an existing one by clicking either New or Edit for your favorite compute server, these might be: (CS -> Siesta; CEC -> Hilton, Clarion ).
- Change the pull down from telnet to ssh
- Click the Advanced button to the right of the hostname
- Click the port forwarding tab
- Click new and make the three following entries, where $DOMAIN is cs, arl, doc, cec, or, if your in another domain, use that mailserver's name.
local target port servername server target port comments 143 mail.$DOMAIN.wustl.edu 143 < reading mail pop3 mail.$DOMAIN.wustl.edu pop3 < reading mail smtp mail.$DOMAIN.wustl.edu smtp < sending mail 119 mail.$DOMAIN.wustl.edu 119 < news
- for ssh.com version Edit - Settings - Profile Settings - Tunnel (check x11 here if you have exceed) - outgoing - add
- same as secureCRT ( ie Display Name: IMAP; TCP; Listen Port: 143 ; Destination: mail.$DOMAIN.wustl.edu; Destination port: 143)
- Use single SSH connection should be checked, might as well check Forward X11 Packets.
- You're now done with the SSH setup, go on and logon.
Now for the netscape setup:
- In netscape (something similar should work for IE) Click Edit - Preferences
- Expand Mail & Groups
- Under mailserver enter:
- for Mail server username: <your login>
- for Outgoing mailserver : localhost
- for Incoming mailserver : localhost
- I picked IMAP
- ALL DONE!
- To use mail through netscape will now require two steps:
- Start up ssh, connect and login to your compute server
- Start up netscape
Tunneling does not fix all problems! You now effectively have two ways of making connections from your client (home) machine. If you try to click on a link on a web page it will not use the tunnel, thus you can't follow a link to a mail server or newsgroup.
