Software (Local Access Only)
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Access Mail, Files (GDE), Login Shell, Java Webstart Login Shell
Embedded SSH Applet : Java SSH Login Shell : An embedded java applet providing SSH Shell Access.
External SSH Applet : Java Webstart SSH Login Shell : Launches an external window (requires Java Webstart) to provide SSH Shell Access.
External SSH-VNC Applet : Java Webstart SSH/VNC Applet : Launches an external window (requires Java Webstart) to provide an SSH-VNC Client.
NOTICE: Twig Mail has been replaced by RoundCube Mail in the link above. It is currently still available at this link : Twig Mail but will be retired at some point.
Accessing the Math Department in a Secure Manner :
Security is something we take very seriously in the Math Department. Breaches
of security cause lost time for the Systems Staff and downtime and other inconveniences
for users. This page details some ways to access the departments resources in
a more secure manner.
There are many ways to connect remotely to the math department systems. Telnet, Rlogin and
Ftp are most commonly used. Unfortunately, Telnet/Rlogin/Ftp are the most
insecure ways of access from a remote site. More break-ins to computer systems result from password being obtained
from users using telnet/rlogin and ftp than any other methods. These protocols will soon be
discontinued from use in the math department. Instead we offer the following secure alternatives and users are encouraged to use
them whenever they are away from our local network.
Specific documentation on setting up things like SSH Port Tunnelling for IMAP/POP/FTP clients can be found on the
Web Applications for Secure Remote Access :
- Imp : IMAP mail reader. You will be prompted for your username and password and a directory where your non-inbox mail folders are stored. Rather well-featured remote mail reader.
- Twig : Multifeatured IMAP mail reader/organizer. Twig is based on IMP. It contains more features in some respects but is lacking in features in others. Its principal advantage is that is will work with Internet Explorer 3.0 and older browsers. It features a calendar, todo list, bookmark manager, and contact list.
Remote Access Alternatives
The secure alternatives to telnet and ftp are ssh, scp, and secure web access. These encrypt data travelling between your machine and the servers making it more difficult for others to obtain useful info in the middle.
- ssh : ssh is a telnet alternative. ssh also has the useful feature of automatically forwarding X display info upon connection so you do not have set the DISPLAY environment variable. It is installed on all Unix machines in the Math Department and is used like this :
ssh[-l username] hostname
If your username on your source system is the same as your username on the destination
system, you can connect directly via :
For Math Department Members Only : (A username and password are required), click here for some links to obtain ssh for various systems.
For Others : Here are some links to sites outside the US with SSH clients (Note some restrictions apply) :
- scp : scp is a secure copy program. It is more similar to cp or rcp than ftp, but accomplishes a similar result. It is used like this :
scp [hostname1:]filename1 [hostname2:]filename2
This will copy filename1 from hostname1 to filename2 on hostname2. If you omit the hostname from one of two arguments, it will default to your local machine. If you specify a directory instead of a filename for the destination file, it will use the same filename as the source file. Here is an example that will copy the file testfile from cauchy in the directory /home/staff/user to a file testfile on your local machine.:
scp cauchy.math.duke.edu:/home/staff/user/testfile testfile
scp can also copy directories and subdirectories with the -r option. For example, to copy the directory /home/staff/user/public_html to a directory oldhtml from cauchy.math.duke.edu to your local machine, you could type :
scp cauchy.math.duke.edu:/home/staff/user/public_html old_html
Maintained by: System Support Staff