Wednesday, February 4, 2015

New NSM and ossec_agent.tcl packages resolve several issues

Brian Kellogg submitted a patch for ossec_agent.tcl that allows you to enable or disable DNS lookups.  Thanks, Brian!  I've packaged this and also updated the NSM package to resolve several issues.

The new packages are as follows:

securityonion-nsmnow-admin-scripts - 20120724-0ubuntu0securityonion114
securityonion-sguil-agent-ossec - 20120726-0ubuntu0securityonion7

These new packages should resolve the following issues:

Issue 684: NSM: nsm_server_ps-start needs to create /var/log/sguild/ if it doesn't already exist
https://code.google.com/p/security-onion/issues/detail?id=684

Issue 686: NSM: nsm_server_ps-start needs to set permissions on /var/log/nsm/so-elsa/ properly
https://code.google.com/p/security-onion/issues/detail?id=686

Issue 687: NSM: nsm_sensor_ps-start should set permissions on /var/log/nsm/HOSTNAME-INTERFACE/ properly
https://code.google.com/p/security-onion/issues/detail?id=687

Issue 689: NSM: add USE_DNS option to ossec_agent.conf
https://code.google.com/p/security-onion/issues/detail?id=689

Issue 688: ossec_agent: add option to disable DNS lookups
https://code.google.com/p/security-onion/issues/detail?id=688

These new packages have been tested by David Zawdie (thanks!).

Release Notes
After updating to the new packages, the next time that the NSM scripts start ossec_agent.tcl, they will add a new USE_DNS option to /etc/nsm/ossec/ossec_agent.conf and default it to 0 (disabled).  This results in much better performance for ossec_agent.tcl.

If you need to revert to the previous behavior of DNS lookups enabled and don't mind the additional lookup delay, you can change USE_DNS to 1 (enabled) and then restart ossec_agent.tcl:
sudo nsm_sensor_ps-restart --only-ossec-agent
Also note that these packages move ossec_agent.tcl to /usr/bin/.

Updating
The new packages are now available in our stable repo.  Please see the following page for full update instructions:
https://code.google.com/p/security-onion/wiki/Upgrade

Feedback
If you have any questions or problems, please use our security-onion mailing list:
https://code.google.com/p/security-onion/wiki/MailingLists

Commercial Support
Need training and/or commercial support?  Please see:
http://securityonionsolutions.com

Help Wanted
If you and/or your organization have found value in Security Onion, please consider giving back to the community by joining one of our teams:
https://code.google.com/p/security-onion/wiki/TeamMembers

Want to show your support for Security Onion?
Several folks have asked about Security Onion t-shirts and they are now available in our CafePress store!
http://www.cafepress.com/securityonion/11820053


Thanks!

No comments:

Search This Blog

Featured Post

Security Onion 2.4 Feature o' the Day - Configure Packet Capture

Security Onion 2.4 includes lots of new features! SOC's new Configuration interface allows you to configure packet capture: You can read...

Popular Posts

Blog Archive