hi,
I have one agent on centos and the server on another machine.
something when I change something in the /etc/passwd file. an alert (mail)
isnt sant. I just add a user to the sistem (where the agent is installed )
and i dont get any mail regarding the ingerity change of the files. today I
didnt get but yesterday i did so i dont unserstand whats going on. few days
ago i had some configuration issue in which the agent couldnt connect to
the server but this was resolved. i attached the ossec.conf of the server
and agent so you can please give me a hand to solve this issue:
ossec.conf agent:
<ossec_config>
<client>
<server-ip>10.10.8.128</server-ip>
<port>1514</port>
</client>
<alerts>
<log_alert_level>7</log_alert_level>
<email_alert_level>8</email_alert_level>
</alerts>
<syscheck>
<!-- Frequency that syscheck is executed - default to every 22 hours -->
<frequency>300</frequency>
<!-- Directories to check (perform all possible verifications) -->
<directories realtime="yes" check_all="yes">/etc</directories>
<!-- Files/directories to ignore -->
<ignore>/etc/mtab</ignore>
<ignore>/etc/mnttab</ignore>
<ignore>/etc/hosts.deny</ignore>
<ignore>/etc/mail/statistics</ignore>
<ignore>/etc/random-seed</ignore>
<ignore>/etc/adjtime</ignore>
<ignore>/etc/httpd/logs</ignore>
<ignore>/etc/utmpx</ignore>
<ignore>/etc/wtmpx</ignore>
<ignore>/etc/cups/certs</ignore>
<ignore>/etc/dumpdates</ignore>
<ignore>/etc/svc/volatile</ignore>
<!-- Windows files to ignore -->
<ignore>C:\WINDOWS/System32/LogFiles</ignore>
<ignore>C:\WINDOWS/Debug</ignore>
<ignore>C:\WINDOWS/WindowsUpdate.log</ignore>
<ignore>C:\WINDOWS/iis6.log</ignore>
<ignore>C:\WINDOWS/system32/wbem/Logs</ignore>
<ignore>C:\WINDOWS/system32/wbem/Repository</ignore>
<ignore>C:\WINDOWS/Prefetch</ignore>
<ignore>C:\WINDOWS/PCHEALTH/HELPCTR/DataColl</ignore>
<ignore>C:\WINDOWS/SoftwareDistribution</ignore>
<ignore>C:\WINDOWS/Temp</ignore>
<ignore>C:\WINDOWS/system32/config</ignore>
<ignore>C:\WINDOWS/system32/spool</ignore>
<ignore>C:\WINDOWS/system32/CatRoot</ignore>
</syscheck>
<active-response>
<disabled>yes</disabled>
</active-response>
<!-- Files to monitor (localfiles) -->
<localfile>
<log_format>full_command</log_format>
<command>netstat -tan |grep LISTEN |grep -v 127.0.0.1 | sort</command>
</localfile>
</ossec_config>
ossec.conf on the server:
<ossec_config>
<global>
<email_notification>yes</email_notification>
<email_to>[email protected]</email_to>
<smtp_server>10.10.8.107</smtp_server>
<email_from>ossecm@UIONAGIOS</email_from>
</global>
<rules>
<include>rules_config.xml</include>
<include>pam_rules.xml</include>
<include>sshd_rules.xml</include>
<include>telnetd_rules.xml</include>
<include>syslog_rules.xml</include>
<include>arpwatch_rules.xml</include>
<include>symantec-av_rules.xml</include>
<include>symantec-ws_rules.xml</include>
<include>pix_rules.xml</include>
<include>named_rules.xml</include>
<include>smbd_rules.xml</include>
<include>vsftpd_rules.xml</include>
<include>pure-ftpd_rules.xml</include>
<include>proftpd_rules.xml</include>
<include>ms_ftpd_rules.xml</include>
<include>ftpd_rules.xml</include>
<include>hordeimp_rules.xml</include>
<include>roundcube_rules.xml</include>
<include>wordpress_rules.xml</include>
<include>cimserver_rules.xml</include>
<include>vpopmail_rules.xml</include>
<include>vmpop3d_rules.xml</include>
<include>courier_rules.xml</include>
<include>web_rules.xml</include>
<include>web_appsec_rules.xml</include>
<include>apache_rules.xml</include>
<include>nginx_rules.xml</include>
<include>php_rules.xml</include>
<include>mysql_rules.xml</include>
<include>postgresql_rules.xml</include>
<include>ids_rules.xml</include>
<include>squid_rules.xml</include>
<include>firewall_rules.xml</include>
<include>cisco-ios_rules.xml</include>
<include>netscreenfw_rules.xml</include>
<include>sonicwall_rules.xml</include>
<include>postfix_rules.xml</include>
<include>sendmail_rules.xml</include>
<include>imapd_rules.xml</include>
<include>mailscanner_rules.xml</include>
<include>dovecot_rules.xml</include>
<include>ms-exchange_rules.xml</include>
<include>racoon_rules.xml</include>
<include>vpn_concentrator_rules.xml</include>
<include>spamd_rules.xml</include>
<include>msauth_rules.xml</include>
<include>mcafee_av_rules.xml</include>
<include>trend-osce_rules.xml</include>
<include>ms-se_rules.xml</include>
<!-- <include>policy_rules.xml</include> -->
<include>zeus_rules.xml</include>
<include>solaris_bsm_rules.xml</include>
<include>vmware_rules.xml</include>
<include>ms_dhcp_rules.xml</include>
<include>asterisk_rules.xml</include>
<include>ossec_rules.xml</include>
<include>attack_rules.xml</include>
<include>openbsd_rules.xml</include>
<include>clam_av_rules.xml</include>
<include>bro-ids_rules.xml</include>
<include>dropbear_rules.xml</include>
<include>local_rules.xml</include>
</rules>
<syscheck>
<!-- Frequency that syscheck is executed - default to every 22 hours -->
<frequency>300</frequency>
<!-- Directories to check (perform all possible verifications) -->
<directories check_all="yes">/etc</directories>
<!-- Files/directories to ignore -->
<ignore>/etc/mtab</ignore>
<ignore>/etc/mnttab</ignore>
<ignore>/etc/hosts.deny</ignore>
<ignore>/etc/mail/statistics</ignore>
<ignore>/etc/random-seed</ignore>
<ignore>/etc/adjtime</ignore>
<ignore>/etc/httpd/logs</ignore>
<ignore>/etc/utmpx</ignore>
<ignore>/etc/wtmpx</ignore>
<ignore>/etc/cups/certs</ignore>
<ignore>/etc/dumpdates</ignore>
<ignore>/etc/svc/volatile</ignore>
<!-- Windows files to ignore -->
<ignore>C:\WINDOWS/System32/LogFiles</ignore>
<ignore>C:\WINDOWS/Debug</ignore>
<ignore>C:\WINDOWS/WindowsUpdate.log</ignore>
<ignore>C:\WINDOWS/iis6.log</ignore>
<ignore>C:\WINDOWS/system32/wbem/Logs</ignore>
<ignore>C:\WINDOWS/system32/wbem/Repository</ignore>
<ignore>C:\WINDOWS/Prefetch</ignore>
<ignore>C:\WINDOWS/PCHEALTH/HELPCTR/DataColl</ignore>
<ignore>C:\WINDOWS/SoftwareDistribution</ignore>
<ignore>C:\WINDOWS/Temp</ignore>
<ignore>C:\WINDOWS/system32/config</ignore>
<ignore>C:\WINDOWS/system32/spool</ignore>
<ignore>C:\WINDOWS/system32/CatRoot</ignore>
</syscheck>
<rootcheck>
<rootkit_files>/var/ossec/etc/shared/rootkit_files.txt</rootkit_files>
<rootkit_trojans>/var/ossec/etc/shared/rootkit_trojans.txt</rootkit_trojans>
<system_audit>/var/ossec/etc/shared/system_audit_rcl.txt</system_audit>
<system_audit>/var/ossec/etc/shared/cis_debian_linux_rcl.txt</system_audit>
<system_audit>/var/ossec/etc/shared/cis_rhel_linux_rcl.txt</system_audit>
<system_audit>/var/ossec/etc/shared/cis_rhel5_linux_rcl.txt</system_audit>
</rootcheck>
<global>
<white_list>127.0.0.1</white_list>
<white_list>^localhost.localdomain$</white_list>
<white_list>10.10.8.70</white_list>
<white_list>10.10.8.128</white_list>
</global>
<client>
<server-ip>10.10.8.128</server-ip>
</client>
<remote>
<connection>secure</connection>
<allowed-ips>10.10.8.124</allowed-ips>
<protocol>udp</protocol>
<port>1514</port>
</remote>
<remote>
<connection>syslog</connection>
</remote>
<remote>
<connection>secure</connection>
</remote>
<alerts>
<log_alert_level>7</log_alert_level>
<email_alert_level>7</email_alert_level>
</alerts>
<command>
<name>host-deny</name>
<executable>host-deny.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>firewall-drop</name>
<executable>firewall-drop.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>disable-account</name>
<executable>disable-account.sh</executable>
<expect>user</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>restart-ossec</name>
<executable>restart-ossec.sh</executable>
<expect></expect>
</command>
<command>
<name>route-null</name>
<executable>route-null.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<!-- Files to monitor (localfiles) -->
<localfile>
<log_format>syslog</log_format>
<location>/var/log/messages</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/secure</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/maillog</location>
</localfile>
<localfile>
<log_format>apache</log_format>
<location>/var/log/httpd/error_log</location>
</localfile>
<localfile>
<log_format>apache</log_format>
<location>/var/log/httpd/access_log</location>
</localfile>
<localfile>
<log_format>command</log_format>
<command>df -h</command>
</localfile>
<localfile>
<log_format>full_command</log_format>
<command>netstat -tan |grep LISTEN |grep -v 127.0.0.1 | sort</command>
</localfile>
<localfile>
<log_format>full_command</log_format>
<command>last -n 5</command>
</localfile>
when I restart ossec service on the agent I see in the event log the
following:
2014/02/25 12:41:01 ossec-logcollector(1225): INFO: SIGNAL Received. Exit
Cleaning...
2014/02/25 12:41:01 ossec-syscheckd(1225): INFO: SIGNAL Received. Exit
Cleaning...
2014/02/25 12:41:01 ossec-agentd(1225): INFO: SIGNAL Received. Exit
Cleaning...
2014/02/25 12:41:01 ossec-execd(1350): INFO: Active response disabled.
Exiting.
2014/02/25 12:41:01 ossec-agentd(1410): INFO: Reading authentication keys
file.
2014/02/25 12:41:01 ossec-rootcheck: System audit file not configured.
2014/02/25 12:41:01 ossec-agentd: INFO: Assigning counter for agent test01:
'0:357'.
2014/02/25 12:41:01 ossec-agentd: INFO: Assigning sender counter: 1:3333
2014/02/25 12:41:01 ossec-agentd: INFO: Started (pid: 3791).
2014/02/25 12:41:01 ossec-agentd: INFO: Server IP Address: 10.10.8.128
2014/02/25 12:41:01 ossec-agentd: INFO: Trying to connect to server
(10.10.8.128:1514).
2014/02/25 12:41:01 ossec-agentd: INFO: Using IPv4 for: 10.10.8.128 .
2014/02/25 12:41:05 ossec-syscheckd: INFO: Started (pid: 3798).
2014/02/25 12:41:05 ossec-rootcheck: INFO: Started (pid: 3798).
2014/02/25 12:41:05 ossec-syscheckd: INFO: Monitoring directory: '/etc'.
2014/02/25 12:41:05 ossec-syscheckd: INFO: Directory set for real time
monitoring: '/etc'.
2014/02/25 12:41:07 ossec-logcollector: INFO: Monitoring full output of
command(360): netstat -tan |grep LISTEN |grep -v 127.0.0.1 | sort
2014/02/25 12:41:07 ossec-logcollector: INFO: Started (pid: 3795).
2014/02/25 12:41:07 ossec-agentd(1210): ERROR: Queue '/queue/alerts/execq'
not accessible: 'Queue not found'.
2014/02/25 12:41:22 ossec-agentd: INFO: Unable to connect to the active
response queue (disabled).
2014/02/25 12:41:23 ossec-agentd(4102): INFO: Connected to the server
(10.10.8.128:1514).
2014/02/25 12:42:07 ossec-syscheckd: INFO: Starting syscheck scan
(forwarding database).
2014/02/25 12:42:07 ossec-syscheckd: INFO: Starting syscheck database
(pre-scan).
2014/02/25 12:42:07 ossec-syscheckd: INFO: Initializing real time file
monitoring (not started).
2014/02/25 12:43:50 ossec-syscheckd: INFO: Real time file monitoring
started.
2014/02/25 12:43:50 ossec-syscheckd: INFO: Finished creating syscheck
database (pre-scan completed).
2014/02/25 12:44:02 ossec-syscheckd: INFO: Ending syscheck scan (forwarding
database).
2014/02/25 12:44:22 ossec-rootcheck: INFO: Starting rootcheck scan.
2014/02/25 12:44:22 ossec-rootcheck: No rootcheck_files file configured.
2014/02/25 12:44:22 ossec-rootcheck: No rootcheck_trojans file configured.
2014/02/25 12:47:27 ossec-rootcheck: INFO: Ending rootcheck scan.
thanks a lot for your help !!
marco
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