Changes between Version 25 and Version 26 of GENIEducation/SampleAssignments/TcpAssignment/ExerciseLayout/DesignSetup


Ignore:
Timestamp:
05/15/13 11:00:54 (6 years ago)
Author:
shuang@bbn.com
Comment:

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  • GENIEducation/SampleAssignments/TcpAssignment/ExerciseLayout/DesignSetup

    v25 v26  
    567567  Note: When dealing with specific slivers, we need to add "-a eg-gpo" to specify which aggregate manager we want to use (i.e., from where we want to reserve the resources). In our case here, we are using ExoGENI Rack at GPO.
    568568
     569 Note: when you try to login the nodes, you might encounter errors like the following:
     570{{{
     571@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
     572@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
     573@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
     574IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
     575Someone could be eavesdropping on you right now (man-in-the-middle attack)!
     576It is also possible that a host key has just been changed.
     577The fingerprint for the RSA key sent by the remote host is
     57812:3b:a0:19:db:b8:62:46:5d:a3:e2:06:27:eb:de:e2.
     579Please contact your system administrator.
     580Add correct host key in /Users/shuang/.ssh/known_hosts to get rid of this message.
     581Offending RSA key in /Users/shuang/.ssh/known_hosts:20
     582RSA host key for 192.1.242.81 has changed and you have requested strict checking.
     583Host key verification failed.
     584}}}
     585 This type of error happens when you have previously logged in a machine with the same IP address and that machine happens not to be the same one as the VM you want to log in. [[BR]]
     586 As a result, this error might happen a lot, especially if you have done experiments on ExoGENI before (since it always uses the same IP range for its VMs and each VM is different from each other, i.e., with different RSA keys). [[BR]]
     587 In this case, simply open ''~/.ssh/known_hosts'' and remove the line corresponding to the IP address you are trying to login. In our case here, find ''192.1.242.81'' and remove that line. [[BR]]
     588
    569589= [wiki:GENIEducation/SampleAssignments/TcpAssignment/ExerciseLayout/Execute Next: Run Experiment] =