This is the executable binary for SAOimage ds9 from 

http://hea-www.harvard.edu/RD/ds9/


The source code is available from that site as well. However, it may not compile
on all Linux systems, and we suggest using the binary whenever possible. 

The script install_ds9 will copy the 64-bit binary to /usr/local/bin/. Other
versions of ds9 should work equally well for image acquisition with xmccd. 

You will also need xpa.  It is best to compile and install it from the 
source code included in XmCCD if it is not already on your system.

On some linux systems where the network has 127.0.0.2 defined in /etc/hosts
insure that xpa works by checking that

HOSTNAME is the short name for the system, eg. "name" rather than name.net

hosts has the entry 

127.0.0.2 name name

where name is the short name for the system.  If this network is not needed, 
then the entry 127.0.0.2 should not appear at all in hosts.