admin@dbai
Please direct all admin related messages to admin@dbai.tuwien.ac.at instead of individual users.
Bug reports should be as detailed as possible and include the time the problem occurred, error messages, and full instructions on how to reproduce the problem (machines involved, particular input files and/or options,...), if appropriate.
Requests regarding e-mail should contain the full headers of the
message(s) in question. Requests regarding printing problems should include the output of "lpq -P[Drucker] -llll".
First of all have a look at our mail configuration.
If you want to forward e-mail to another e-mail address you have to put a ".forward" file into your home-directory. For example, if user chris has a .forward file containing the following lines:
chris@freemail.com
\chris
one copy of mail will be forwarded to chris@freemail and another copy will be retained as mail for local user chris.
For additional information see "man forward".
Printing
If you have to print from a Windows machine outside our department network (e.g. you are connected per WLAN):- Download Putty and put it into an appropriate directory (e.g. C:\Program Files\Putty\)
- Download this batch file and put it on your desktop.
- You may ease the login adding the option sequence "-l YourUsername" to the command line in the above mentioned batch file
- Add a new network printer with the URL http://localhost:7171/printers/XYZ (change XYZ with one of the printers above).
- Now execute the above mentioned batch file on your desktop and login to our login server (which you mostly do anyway). With that done you now are authorized to our printing environment, and you can print to the above configured printer.
For special printing demands (e.g. A3 format) there is a copy center two houses
away from us. Ask the
secretaries for the copy
card.
Windows
Usually our file server (where your home directory resides) should appear in the "network neighbourhood" of the internet explorer, where you can access your home directory and use the printers. If it doesn't, please use the following workaround:
- Log in as usual.
- Open the Explorer.
- Choose in menu "Tools" the item "Map Network Drive".
- In the Field "Drive" there should already be choosed a free Drive-Letter (if not: choose one). In the Field "Path:" insert the string "\\vexpert\username" (without quotation marks, replace your username).
- Press "Ok".
- In the Explorer there should now appear a new drive "USER on VEXPERT" where you can access your home directory.
Access
Due to security constraints, we solely rely on SSH (protocol version 2.x) or one time passwords for remote login and file transfer; normal telnet, ftp and (unencrypted) imap are generally disabled.
If you want to login from an unsecure system, please use our one time password system (IMAP isn't yet available that way).
Generally for remote connections you may use sg1.dbai (SSH),
sg2.dbai (SSH) and vexpert.dbai (IMAPS). Login to
a group account doesn't work this way, please login as
normal user instead and change to the group account with su -
<groupaccount>
afterwards.
(Any decent Unix installation these days already has SSH installed. For Windows we recommend PuTTY.
Please log out, when you finish your working day (both remote and local). If
you however have to run a program over several days, please send an appropriate mail to
admin@dbai.tuwien.ac.at.
Backup
The home directories, the mailbox directory, the /web and the /proj directory are backed up on Tue, Wed, Thu, Fri and Sat starting at 2:35am. Also all user datas from mysql, wiki and svn servers.
Every month a set of these backups is stored for two years. Among these, every fourth set will be stored for another two years. This means that home directories and web data are stored for four years (at least in an interval of four months).
Misc
Web server
Please have a look at these instructions.Startup files
Please keep your startup files (.xinitrc, .login, .logout etc.) as small as possible, and only set configurations there which you really need. The following X configuration files are considered by default:- .Xdefault, .Xresources (by xrdb)
- .Xmodmap, .Xmodemap (by xmodmap)