Add host » History » Version 12
Anchi Cheng, 08/12/2014 02:41 PM
1 | 2 | Anchi Cheng | h2. 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. |
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2 | 1 | Anchi Cheng | |
3 | 11 | Anchi Cheng | h3. Find out what python thinks the hostname is with python command line. REPEAT this both on Linux and Windows PC |
4 | 3 | Anchi Cheng | |
5 | Run the following in python command line: |
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6 | <pre> |
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7 | import socket |
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8 | socket.gethostname() |
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9 | </pre> |
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10 | 1 | Anchi Cheng | |
11 | 8 | Anchi Cheng | h3. Find out the ip address associate with the hostname |
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13 | Run the following in python command line: |
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14 | 4 | Anchi Cheng | <pre> |
15 | 8 | Anchi Cheng | import socket |
16 | socket.gethostbyname('your_host_name') |
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17 | 4 | Anchi Cheng | </pre> |
18 | 2 | Anchi Cheng | |
19 | 10 | Anchi Cheng | h3. 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 |
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21 | * On Linux, this "hosts" file is at |
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22 | 1 | Anchi Cheng | > /etc/hosts |
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24 | 10 | Anchi Cheng | Example of a "hosts" file: |
25 | 8 | Anchi Cheng | |
26 | 1 | Anchi Cheng | <pre> |
27 | 8 | Anchi Cheng | 192.000.1.222 instrument_host_name.domain_name instrument_short_host_name |
28 | </pre> |
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30 | 10 | Anchi Cheng | h3. Use shorter linux hostname if desired |
31 | 9 | Anchi Cheng | |
32 | 8 | Anchi Cheng | If you'd like to shorten your linux hostname recognized by socket without the domain name, you may do so as root |
33 | <pre> |
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34 | hostname your_shorter_hostname |
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35 | </pre> |
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36 | |||
37 | and also add that to the /etc/hosts as an alternative name |
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38 | <pre> |
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39 | 192.000.1.333 long_host_name.domain_name your_shorter_hostname |
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40 | </pre> |
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41 | 9 | Anchi Cheng | |
42 | You will need to restart networking to make it persistent. |
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43 | <pre> |
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44 | /etc/init.d/network restart |
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45 | </pre> |
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46 | |||
47 | Test the change by finding the ip address with the hostname as in the above section. |
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48 | 8 | Anchi Cheng | |
49 | h3. The Linux main Leginon computer also needs to identify itself by its hostname registered on the instrument Windows computer. |
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50 | 1 | Anchi Cheng | |
51 | 7 | Anchi Cheng | * On Window XP and WIndows 7 this host file is |
52 | 1 | Anchi Cheng | > C:\\WINDOWS\system32\drivers\etc\hosts |
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54 | 7 | Anchi Cheng | * On Window NT, this host file is |
55 | 1 | Anchi Cheng | > C:\\WINNT\system32\drivers\etc\hosts |