How to edit /etc/resolv.conf in Solaris 11?

In Solaris 11 the /etc/resolv.conf is (automatically) populated with svc:/network/dns/client service.
Modifications will be lost when the svc:/network/dns/client service is restarted.

root@smfSolaris11:~/jms# cat /etc/resolv.conf

#

# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

#

#

# _AUTOGENERATED_FROM_SMF_V1_

#

# WARNING: THIS FILE GENERATED FROM SMF DATA.

#   DO NOT EDIT THIS FILE.  EDITS WILL BE LOST.

# See resolv.conf(4) for details.

search  smf.com

nameserver      x.x.x.x

nameserver      x.x.x.y

Step:

svc:/network/dns/client> listprop config

config                      application

config/value_authorization astring     solaris.smf.value.name-service.dns.client

config/nameserver          net_address x.x.x.x x.x.x.y

config/search              astring     smf.com

svc:/network/dns/client> setprop config/search = symcsmf.com

svc:/network/dns/client> listprop config

config                      application

config/value_authorization astring     solaris.smf.value.name-service.dns.client

config/nameserver          net_address x.x.x.x x.x.x.y

config/search              astring     symcsmf.com

svc:/network/dns/client> exit

root@smfSolaris11:~/jms# svcadm refresh dns/client

root@smfSolaris11:~/jms# svcadm restart dns/client

root@smfSolaris11:~/jms# cat /etc/resolv.conf

#

# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

#

#

# _AUTOGENERATED_FROM_SMF_V1_

#

# WARNING: THIS FILE GENERATED FROM SMF DATA.

#   DO NOT EDIT THIS FILE.  EDITS WILL BE LOST.

# See resolv.conf(4) for details.

search  symcsmf.com

nameserver      x.x.x.x

nameserver      x.x.x.y

To change
- nameserver: setprop config/nameserver = (192.168.1.1 4.2.2.2 8.8.8.8)
- domain: setprop config/domain = smthing.com


More reference : http://timwort.org/classp/TS11_HTML/mod06.htm

Monitoring log files with Zabbix

What I wanted:
Zabbix should send me mail when string "ERROR" is seen in log file.

Approach:
We create a Item which monitors log files (looks for "ERROR" string at specified interval).
We then create a Trigger on this Item. Trigger creates and event.
In the end, we tell what Zabbix should do once the trigger is triggered (or event is created). In my case, I needed an email.

Steps:


- Specify ServerActive=<Zabbix_server_ip>:<server_port> in conf file if you have Zabbix 2.0. For Zabbix 1.8, this parameter is not needed. (Default server port is 10051). Start Zabbix Agent (steps).


- Create a template. Create an Item to monitor log file in that template.

    Key = log[/var/log/error_file,ERROR,,1] and type of information = Log and
    Type = Zabbix Agent Active

- Create a Trigger for this Item

  Expression = {testtemplate:log[/var/log/error_file,ERROR,,1].str(ERROR)}=1

  PS: I want to Zabbix to look for "ERROR" string. You can use any value here(E.g: OutOfMemoryError).

- Create an action for this tirgger:

  PS: You can add more conditions like Host = hostname etc. 

- I have specified Send message to Group "Zabbix administrators" in my action. By default, "Zabbix administrators" group has only one user Admin added in it. 

Goto Administration -- > Users. Look for "Zabbix administrators" group

Click on User Admin and add a valid media i.e. email address where you want your alerts to come.

- Now go to Administation --> Media Type and add your mail server details.

Whenever "Error" word is seen is log file, Log Item catches it and trigger is triggered. Trigger's action is set to send an email to  "Zabbix administrators" group where we provided valid email address.

Starting Zabbix Agent on Linux

Get Pre-compiled Zabbix agents from here
Add user Zabbix
#useradd  -c 'Zabbix monitoring' zabbix

Start agent service (as zabbix user)
sbin/zabbix_agentd -c /home/zabbix/server.conf
(Agent wont start with # prompt; login with "zabbix" before starting agent)

Server.conf file:
[zabbix@test ~]$ cat server.conf
Server=<ip_of_zabbix_server>
Hostname=test.smf.com
LogFile=/tmp/zabbix_agentd.log


Make sure you specify correct hostname in
- conf file before starting agent.
- Zabbix UI while adding the host.

In my case, I have:
[zabbix@test ~]$ hostname
test.smf.com
[zabbix@test ~]$

Hence, I gave test.smf.com in my conf file. And while adding host in zabbix UI, same name was specified.
You will get "active check errors" in client log file if proper hostname is not provided. Moreover, Zabbix Agent (Active) too will not work.
( Zabbix Agent (Active) is needed if you want to monitor log files)

Sample outputs:

[zabbix@test ~]$ cat /tmp/zabbix_agentd.log
 16494:20120718:052501.334 Starting Zabbix Agent [test.smf.com]. Zabbix 2.0.0 (revision 27675).
 16495:20120718:052501.335 agent #0 started [collector]
 16496:20120718:052501.337 agent #1 started [listener]
 16497:20120718:052501.337 agent #2 started [listener]
 16498:20120718:052501.338 agent #3 started [listener]
[zabbix@test ~]$

[zabbix@test ~]$ ps -ef | grep zabbix

zabbix   16494     1  0 05:25 ?        00:00:00 sbin/zabbix_agentd -c /home/zabbix/server.conf

zabbix   16495 16494  0 05:25 ?        00:00:00 sbin/zabbix_agentd -c /home/zabbix/server.conf

zabbix   16496 16494  0 05:25 ?        00:00:00 sbin/zabbix_agentd -c /home/zabbix/server.conf

zabbix   16497 16494  0 05:25 ?        00:00:00 sbin/zabbix_agentd -c /home/zabbix/server.conf

zabbix   16498 16494  0 05:25 ?        00:00:00 sbin/zabbix_agentd -c /home/zabbix/server.conf