第一次使用ossec,测试环境,配置问题
我创建了一个新服务器(centos 8,ossec 3.4)。在服务器上,我安装了 ossec 服务器。该服务器似乎能够正确监控自身(我重新启动 ossec 时会收到电子邮件)。我将这称为 ossec 服务器。
我在另一台服务器上安装了 ossec 代理(centos 7,ossec 3.4)。我将其称为前进代理。
我使用 ossec 服务器上的 manage_agents 添加了 ossec 代理。
****************************************
* OSSEC HIDS v3.4.0 Agent manager. *
* The following options are available: *
****************************************
(A)dd an agent (A).
(E)xtract key for an agent (E).
(L)ist already added agents (L).
(R)emove an agent (R).
(Q)uit.
Choose your action: A,E,L,R or Q: L
Available agents:
ID: 228, Name: agen, IP: 192.168.1.228
** Press ENTER to return to the main menu.
然后我为特工提取了一把钥匙
****************************************
* OSSEC HIDS v3.4.0 Agent manager. *
* The following options are available: *
****************************************
(A)dd an agent (A).
(E)xtract key for an agent (E).
(L)ist already added agents (L).
(R)emove an agent (R).
(Q)uit.
Choose your action: A,E,L,R or Q: E
Available agents:
ID: 228, Name: agen, IP: 192.168.1.228
Provide the ID of the agent to extract the key (or '\q' to quit): 228
Agent key information for '228' is:
MjI4IGxob3N0LWplbmtpbnMgMTkyLjE2OC4xLjIyOCA3MzMyYTZkNjcwNzg1YmUyNGY5MzdiZTQ2NWY2MmM2MDg3ZTg5MWE3YWU0NjlkMmU1YWIxNWZjMTY3NzAxMThj
** Press ENTER to return to the main menu.
我使用代理上的 manage_agent 尝试导入密钥。
****************************************
* OSSEC HIDS v3.4.0 Agent manager. *
* The following options are available: *
****************************************
(I)mport key from the server (I).
(Q)uit.
Choose your action: I or Q: I
* Provide the Key generated by the server.
* The best approach is to cut and paste it.
*** OBS: Do not include spaces or new lines.
Paste it here (or '\q' to quit): MjI4IGxob3N0LWplbmtpbnMgMTkyLjE2OC4xLjIyOCA3MzMyYTZkNjcwNzg1YmUyNGY5MzdiZTQ2NWY2MmM2MDg3ZTg5MWE3YWU0NjlkMmU1YWIxNWZjMTY3NzAxMThj
Agent information:
ID:228
Name:agen
IP Address:192.168.1.228
Confirm adding it?(y/n): y
2019/10/22 13:26:09 manage_agents: ERROR: Cannot unlink /queue/rids/sender: No such file or directory
Added.
** Press ENTER to return to the main menu.
它抛出了一个奇怪的错误,但声称密钥已添加。因此,最后,我尝试在代理上重新启动 ossec,但我收到一系列错误,表明我的配置不正确。
[root@agen bin]# /var/ossec/bin/ossec-client.sh restart
ossec-logcollector not running ..
ossec-syscheckd not running ..
ossec-agentd not running ..
Killing ossec-execd ..
OSSEC HIDS 3.4.0 Stopped
Starting OSSEC HIDS 3.4.0...
Started ossec-execd...
2019/10/22 13:27:35 ossec-agentd(4105): ERROR: No valid server IP found.
2019/10/22 13:27:35 ossec-agentd(1215): ERROR: No client configured. Exiting.
ossec-agentd did not start
好的,所以,我认为我需要在 ossec.conf 中更改配置,但我没有看到任何合适的内容。
<ossec_config>
<global>
<email_notification>yes</email_notification>
<email_to>REDACTED</email_to>
<smtp_server>REDACTED</smtp_server>
<email_from>REDACTED</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>apparmor_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>dropbear_rules.xml</include>
<include>sysmon_rules.xml</include>
<include>opensmtpd_rules.xml</include>
<include>exim_rules.xml</include>
<include>openbsd-dhcpd_rules.xml</include>
<include>dnsmasq_rules.xml</include>
<include>nsd_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,/boot</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_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>192.168.1.10</white_list>
<white_list>192.168.1.228</white_list>
</global>
<remote>
<connection>syslog</connection>
</remote>
<remote>
<connection>secure</connection>
</remote>
<alerts>
<log_alert_level>1</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>
<!-- Active Response Config -->
<active-response>
<!-- This response is going to execute the host-deny
- command for every event that fires a rule with
- level (severity) >= 6.
- The IP is going to be blocked for 600 seconds.
-->
<command>host-deny</command>
<location>local</location>
<level>6</level>
<timeout>600</timeout>
</active-response>
<active-response>
<!-- Firewall Drop response. Block the IP for
- 600 seconds on the firewall (iptables,
- ipfilter, etc).
-->
<command>firewall-drop</command>
<location>local</location>
<level>6</level>
<timeout>600</timeout>
</active-response>
<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/nginx/access.log</location>
</localfile>
<localfile>
<log_format>apache</log_format>
<location>/var/log/nginx/error.log</location>
</localfile>
</ossec_config>
我的问题是,我在哪里或如何进行这些配置?
答案1
我是这样解决的:
cd /var/ossec/queue/rids/
cp 001 sender
我重新注册了代理
/var/ossec/bin/manage_agents
这个问题已经解决了,这个过程消除了发件人路径中的文件/var/ossec/queue/rids/