perfSONAR User Q&A and Other Discussion

[Zhi-Wei Lu <>]

Hi all,

 

I think that I have finally tracked down the culprit of the problem.  It was the “nscd”, it caches passwd, group, and hosts databases.  A simple

/etc/init.d/nscd restart

Won’t work either.  You need to clear the group cache

“nscd  -i group”

Will clear the group cache after you put the new user in the psadmin group.  I hope that this will help someone from getting frustrated like I had.

 

Thank you.

 

Zhi-Wei Lu

IET-CR-Network Operations Center

University of California, Davis

(530) 752-0155

 

From: Garnizov, Ivan (RRZE) [mailto:]
Sent: Friday, January 16, 2015 2:04 AM
To: Zhi-Wei Lu;
Subject: RE: [perfsonar-user] add perfsonar webadmin user

 

Ups, I missed the obvious part:

 

service restart httpd

 

Best regards,

Ivan

 

From: [] On Behalf Of Zhi-Wei Lu
Sent: Friday, January 16, 2015 1:08 AM
To:
Subject: [perfsonar-user] add perfsonar webadmin user

 

Hi all,

 

From time to time, I would like to add additional user into the “psadmin” group for web admin.  Unfortunately, the process have been rocky.

 

I add a new unix user by using “useradd”, create a password for this user, and I then put the user in the

/etc/group for group psadmin.

 

I then restart the “httpd” process, when I try to access the admin page on the web 9 out of 10 time, it would fail.  The httpd ssl_error log indicates that “user xyz not allowed access”, even though the user is in the /etc/group file for group psadmin, which satisfies the apache rule.

 

Is there anything else I need to do to make “perfsonar” work? Restarting Cassandra?

 

Zhi-Wei Lu

IET-CR-Network Operations Center

University of California, Davis

(530) 752-0155