Leginon

Add the IP address and matching hostname of the microscope and digital camera computer in your host file on the main Leginon computer, and vice versa.¶

Find out what python thinks the hostname is with python command line. REPEAT this both on Linux and Windows PC¶

Run the following in python command line:

import socket
socket.gethostname()

Find out the ip address associated with the hostname¶

Run the following in python command line:

import socket
socket.gethostbyname('your_host_name')

Modify your "hosts" file on the linux Leginon computer to include the instrument hosts if the latter is not already mapped by your domain name server¶

• On Linux, this "hosts" file is at

/etc/hosts

Example of a "hosts" file:

192.000.1.222   instrument_host_name.domain_name instrument_short_host_name

Use shorter linux hostname if desired¶

If you'd like to shorten your linux hostname recognized by socket without the domain name, you may do so as root

hostname your_shorter_hostname

and also add that to the /etc/hosts as an alternative name

192.000.1.333   long_host_name.domain_name your_shorter_hostname

You will need to restart networking to make it persistent.

/etc/init.d/network restart

Test the change by finding the ip address with the hostname as in the above section.

The Linux main Leginon computer also needs to identify itself by its hostname registered on the instrument Windows computer.¶

• On Window XP and WIndows 7 this host file is

C:\\WINDOWS\system32\drivers\etc\hosts

• On Window NT, this host file is

C:\\WINNT\system32\drivers\etc\hosts