Custom Query (98 matches)

Two prospective issues related to password-based login to ops.utah.geniracks.net:

1. Remote password-based SSH login to my user account (chaos) succeeds. Is there a plan to protect against password-guessing attacks on user accounts, which can be shared with site admins?
2. Since /etc/ssh/sshd_config contains:

   PermitRootLogin yes
   

   I am concerned that password-based root login may in fact be permitted on ops. Is that the case? If so, could this setting be changed to without-password?

I created a sliver today on the slice pgeni.gpolab.bbn.com/ecgtest2, containing two VMs on pc3.utah.geniracks.net. The web details page, ​https://boss.utah.geniracks.net/showexp.php3?pid=pgeni-gpolab-bbn-com&eid=ecgtest2#details, contains:

SSHD Port allocation ('ssh -p portnum'):
ID              Port       SSH command
--------------- ---------- ----------------------
Use of uninitialized value $m in concatenation (.) or string at /usr/testbed/bin/tbreport line 370, <DATA> line 497.
virt1           30778      ssh -p 30778 .ecgtest2.pgeni-gpolab-bbn-com.utah.geniracks.net
Use of uninitialized value $m in concatenation (.) or string at /usr/testbed/bin/tbreport line 370, <DATA> line 497.
virt2           30779      ssh -p 30779 .ecgtest2.pgeni-gpolab-bbn-com.utah.geniracks.net

Looks like a small perl bug of some sort.

Iperf has been used in the Site Confirmation tests to capture performance for each of the experimenter test cases.

The confirmation test (IG-CT-1 - Access to New Site VM resources) has consistently found poor TCP performance results for all initial racks (GPO, Northwestern, Utah).

For IG-CT-1, measurements were captures from VM to VM within one rack over TCP for a duration of 60 seconds for 1, 5 and 10 iperf client connections. In all cases VMs assigned were on the same node.

The results as captured for the test runs at each rack:

• ​http://groups.geni.net/geni/wiki/GENIRacksHome/InstageniRacks/ConfirmationTestStatus/GPO#Measurements
• ​http://groups.geni.net/geni/wiki/GENIRacksHome/InstageniRacks/ConfirmationTestStatus/Northwestern#Measurements
• ​http://groups.geni.net/geni/wiki/GENIRacksHome/InstageniRacks/ConfirmationTestStatus/Utah#Measurements