Monday, May 11, 2009

Highlighting matching on regexp

hi all,

If you wish to declare a environment variable to have regular expression operates with grep where the standard output showing the colors, in fact, you can!

export GREP_OPTIONS='--color=auto'

Have fun.

yen_onn_hiu@nasilemak:~/regexp> grep .a.. text1
sales1.xls
sales2.xls
sales3.xls
apac1.xls
na1.xls
na2.xls
sa1.xls

Thursday, May 7, 2009

VAS troubleshooting skills

Yesterday, I have been spending times to debug the vastool. That's give me error when prompting the id of the account.

End up, I did a "vas merge" to get all the vas cache load into the /etc/passwd and /etc/group. That's pain. But, It works temporarily.

Here are the bunch of vas command for troubleshooting.

1. To check on the user access

vastool user checkaccess [account_name]

2. To get the vastool status result

ftp://ftp.vintela.com/vas/support/vas_status.sh.gz

To get the vastool snapshot

/opt/quest/libexec/vas/scripts/vas_snapshot.sh

3. To flush the cache

vastool flush

4. To check is vas

vastool isvas user [account name]

5. Test AD connection and user password
vastool kinit [account_name]

6. Test VAS service access control (assuming your using sshd)
vastool user checkaccess -s sshd [acount_name]

7. Check authentication logs
1) Add the words "debug" and "trace" to the end of all pam_vas lines in /etc/pam.d/system-auth
2) Add "*.debug /var/log/debug" to /etc/syslog.conf
3) Restart syslog daemon
4) Attempt login
5) Look at output in /var/log/debug for indication/reason of failure

8. You can also turn on vasd debug if desired
1) vastool configure vas vasd debug-level 3