Hi,
I added next lines on */var/ossec/ossec-agent/etc/ossec.conf *on Server A
(hybrid mode)*:*
<localfile>
<log_format>ossecalert</log_format>
<location>/var/ossec/logs/alerts/alerts.log</location>
</localfile>
And I restarted ossec with *ossec-control*
Right
Checking the /var/ossec/logs/ossec.log on server A, I detect the following
log:
*2013/11/25 18:24:22 ossec-logcollector (1950): INFO: Analyzing file:
'/var/ossec/logs/alerts/alerts.log'*
Well, at this time, the PC User's ossec events sends to Server A, and
Server A forwards to Server B
But after a few minutes, the following log appears in
/var/ossec/logs/ossec.log on Server A:
*2013/11/25 18:30:53 ossec-logcollector (1904): INFO: File not available,
ignoring it: '/var/ossec/logs/alerts/alerts.log'*
Then PC User'Ossec events sends to Server A, but *not forwarded* to Server
B.
It's strange because the file /var/ossec/logs/alerts/alerts.log exists on
that path.
Any idea?
thanks
El lunes, 25 de noviembre de 2013 14:32:49 UTC+1, dan (ddpbsd) escribió:
>
> On Mon, Nov 25, 2013 at 8:28 AM, Gonzalo Sanchez
> <[email protected] <javascript:>> wrote:
> > I don't understand you.
> >
> > Can you put here configuration's changes?
>
> Add a localfile entry for /var/ossec/logs/alerts/alerts/log. The log
> format should be ossecalert.
>
> > What files should I change?
> >
>
> /var/ossec/ossec-agent/etc/ossec.conf (I think, I don't have a hybrid
> system handy at the moment)
>
> > /var/ossec/etc/ossec.conf o /var/ossec/ossec-agent/etc/ossec.conf ?
> >
>
> /var/ossec/ossec-agent/etc/ossec.conf (I think, I don't have a hybrid
> system handy at the moment)
>
> > Thabks a lot
> >
> > El lunes, 25 de noviembre de 2013 14:16:10 UTC+1, dan (ddpbsd) escribió:
> >>
> >> On Mon, Nov 25, 2013 at 6:56 AM, Gonzalo Sanchez
> >> <[email protected]> wrote:
> >> > Hi,
> >> >
> >> > This is server A's configuration:
> >> >
> >> > /var/ossec/etc/ossec.conf
> >> >
> >> > <ossec_config>
> >> > <global>
> >> > <email_notification>no</email_notification>
> >> > </global>
> >> >
> >> > <remote>
> >> > <connection>secure</connection>
> >> > </remote>
> >> >
> >> > <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>79200</frequency>
> >> >
> >> > <!-- Directories to check (perform all possible verifications)
> -->
> >> > <directories
> check_all="yes">/etc,/usr/bin,/usr/sbin</directories>
> >> > <directories check_all="yes">/bin,/sbin</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>
> >> >
> >> > <active-response>
> >> > <disabled>yes</disabled>
> >> > </active-response>
> >> >
> >> >
> >> > <alerts>
> >> > <log_alert_level>1</log_alert_level>
> >> > </alerts>
> >> > <!-- 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/auth.log</location>
> >> > </localfile>
> >> >
> >> > <localfile>
> >> > <log_format>syslog</log_format>
> >> > <location>/var/log/syslog</location>
> >> > </localfile>
> >> >
> >> > <localfile>
> >> > <log_format>syslog</log_format>
> >> >
> >> > <location>/var/log/mail.info<http://www.google.com/url?q=http%3A%2F%2Fmail.info&sa=D&sntz=1&usg=AFQjCNGch6l7pasRXlbEwwQDnplQfaOzxw></location>
> >> >
>
> >> > </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>
> >> > </ossec_config>
> >> >
> >>
> >> I believe you need a localfile looking at
> >> /var/ossec/logs/alerts/alerts.log. Try the ossecalert format.
> >>
> >>
> >> >
> >> > /var/ossec/ossec-agent/etc/ossec.conf
> >> >
> >> > <ossec_config>
> >> > <client>
> >> > <server-ip>192.168.1.211</server-ip>
> >> > </client>
> >> >
> >> >
> >> > <rootcheck>
> >> > <disabled>yes</disabled>
> >> > </rootcheck>
> >> >
> >> > <active-response>
> >> > <disabled>yes</disabled>
> >> > </active-response>
> >> >
> >> >
> >> > <localfile>
> >> > <log_format>ossecalert</log_format>
> >> > <location>/var/ossec/logs/alerts/alerts.log</location>
> >> > </localfile>
> >> >
> >> > </ossec_config>
> >> >
> >> >
> >> > Do you need more info?
> >> >
> >> > thanks a lot
> >> >
> >> > El viernes, 22 de noviembre de 2013 14:07:47 UTC+1, dan (ddpbsd)
> >> > escribió:
> >> >>
> >> >> On Fri, Nov 22, 2013 at 8:04 AM, Gonzalo Sanchez
> >> >> <[email protected]> wrote:
> >> >> >
> >> >> >>> I solved this problem by modifying the file
> >> >> >>> /var/ossec/bin/ossec-control
> >> >> >>> on
> >> >> >>> Server A
> >> >> >>>
> >> >> >>> Right.
> >> >> >>>
> >> >> >
> >> >> >>What did you change?
> >> >> >
> >> >> > On Server A, file /var/ossec/bin/ossec-control I modified next
> lines:
> >> >> >
> >> >> > DAEMONS="ossec-monitord ossec-logcollector ossec-remoted
> >> >> > ossec-syscheckd
> >> >> > ossec-analysisd ossec-maild ossec-execd ${DB_DAEMON}
> >> >> > ${CSYSLOG_DAEMON}
> >> >> > ${AGENTLESS_DAEMON}"
> >> >> >
> >> >> > SDAEMONS="${DB_DAEMON} ${CSYSLOG_DAEMON} ${AGENTLESS_DAEMON}
> >> >> > ossec-maild
> >> >> > ossec-execd ossec-analysisd ossec-logcollector ossec-syscheckd
> >> >> > ossec-monitord ossec-remoted"
> >> >> >
> >> >> > And on file /var/ossec/etc/ossec.conf I added next lines:
> >> >> >
> >> >> > <remote>
> >> >> > <connection>secure</connection>
> >> >> > </remote>
> >> >> >
> >> >>
> >> >>
> >> >> Thanks. I think I see an easy fix for this in the installation.
> >> >>
> >> >> >>I'm going to go out on a limb and guess that Server A isn't
> >> >> >> monitoring
> >> >> >>its /var/ossec/logs/alerts/alerts.log, but it's hard to be sure
> >> >> >>without any real information.
> >> >> >
> >> >> > What information do you need?
> >> >>
> >> >> Configurations, especially server a's.
> >> >>
> >> >> > Can you explain how to solve the problem?
> >> >> >
> >> >>
> >> >> Probably, but I'll have to find out exactly what it is first.
> >> >>
> >> >> > Thanks a lot
> >> >> >
> >> >> > El viernes, 22 de noviembre de 2013 13:55:23 UTC+1, dan (ddpbsd)
> >> >> > escribió:
> >> >> >>
> >> >> >> On Fri, Nov 22, 2013 at 7:41 AM, Gonzalo Sanchez
> >> >> >> <[email protected]> wrote:
> >> >> >> > Hi all,
> >> >> >> >
> >> >> >> > A few days ago I installed OSSEC in Hybrid mode on a server.
> >> >> >> >
> >> >> >> > The scheme is as follows :
> >> >> >> >
> >> >> >> >
> >> >> >> > PC User ---------- Server A ------------ Server B
> >> >> >> >
> >> >> >> > On PC User I installed OSSEC in Agent mode.
> >> >> >> > On Server A I installed OSSEC in Hybrid mode.
> >> >> >> > On Server B I installed OSSEC in Server mode.
> >> >> >> >
> >> >> >> > Right.
> >> >> >> >
> >> >> >> > The first thing I detected was that in Server B appeares Server
> A
> >> >> >> > as
> >> >> >> > Active
> >> >> >> > . This confirms that the Agent Server A part works .
> >> >> >> >
> >> >> >> > Later detected that PC User NOT appears as Active on Server A.
> >> >> >> > This
> >> >> >> > problem
> >> >> >> > occurs because ossec-remoted service NOT starts.
> >> >> >> > Why?
> >> >> >> > Because installing OSSEC in Hybrid mode , install OSSEC TWICE:
> >> >> >> >
> >> >> >> > - Agent Mode
> >> >> >> > - Local Mode
> >> >> >> >
> >> >> >>
> >> >> >> It should have installed server mode, not local.
> >> >> >>
> >> >> >> > In Local mode , ossec-remoted NO starts. Therefore, no agent
> can
> >> >> >> > connect
> >> >> >> > to
> >> >> >> > Server A.
> >> >> >> >
> >> >> >> > Right.
> >> >> >> >
> >> >> >> > I solved this problem by modifying the file
> >> >> >> > /var/ossec/bin/ossec-control on
> >> >> >> > Server A
> >> >> >> >
> >> >> >> > Right.
> >> >> >> >
> >> >> >>
> >> >> >> What did you change?
> >> >> >>
> >> >> >> > Now , PC User appears as Active on Server A and sends events to
> >> >> >> > /var/ossec/logs/alerts/alerts.log on Server A.
> >> >> >> >
> >> >> >> > Now the 2nd problem occurs.
> >> >> >> >
> >> >> >> > The events sent to Server A PC User and stored in
> >> >> >> > /var/ossec/logs/alerts.log
> >> >> >> > NOT FORWARDED to Server B.
> >> >> >> >
> >> >> >> > If I check the file /var/ossec/logs/alerts/alerts.logs on
> Server
> >> >> >> > A,
> >> >> >> > PC
> >> >> >> > Userv
> >> >> >> > events NOT APPEARS , only appears Server A events sended ny
> Server
> >> >> >> > A
> >> >> >> > Agent.
> >> >> >> >
> >> >> >>
> >> >> >> I'm going to go out on a limb and guess that Server A isn't
> >> >> >> monitoring
> >> >> >> its /var/ossec/logs/alerts/alerts.log, but it's hard to be sure
> >> >> >> without any real information.
> >> >> >>
> >> >> >> > Does this make sense ?
> >> >> >> >
> >> >> >>
> >> >> >> Mostly.
> >> >> >>
> >> >> >> > Does this have a solution?
> >> >> >> >
> >> >> >>
> >> >> >> Probably.
> >> >> >>
> >> >> >> > If not, then the Hybrid mode is totally useless.
> >> >> >> >
> >> >> >> > Any idea?
> >> >> >> >
> >> >> >>
> >> >> >> A few.
> >> >> >>
> >> >> >> > Thanks
> >> >> >> >
> >> >> >> > --
> >> >> >> >
> >> >> >> > ---
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> >> >> >
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