Accenture MDR Quick Start Guide for Unix® OS

This quick start guide will help Accenture MDR customers configure Unix® Servers to send logs to the Log collection Platform (LCP).

This document includes the following topics:

1 Supported Versions
2 Port Requirements
3 Configuring Red Hat Enterprise Linux, Debian Linux, Oracle Linux, SUSE Linux, Ubuntu Linux,Huawei EulerOS, Alma Linux and CentOS operating systems
4 LCP Configuration Parameters

Supported Versions

A list of supported versions is available in the Accenture MDR Supported Products List document (Accenture_MDR_Supported_Products_List.xlsx) which can be found in Accenture MDR Portal.

Port Requirements

Table 1-1: Port requirements for LCP communication.

Source

Destination

Port

Description

Unix/Linux/Solaris server

LCP

514 (UDP) or

601 (TCP)

Default port

Configuring Red Hat Enterprise Linux, Debian Linux, Oracle Linux, SUSE Linux, Ubuntu Linux,Huawei EulerOS, Alma Linux and CentOS operating systems

You can configure Unix OS devices using different syslog daemons to send event logs to the LCP.

For syslogd configuration, see Configuring Syslog Message Forwarding Using syslogd
For rsyslogd configuration, see Configuring Syslog Message Forwarding Using rsyslogd
For syslog-ng configuration, see Configuring Syslog Message Forwarding Using syslog-ng
For Nokia IPSO syslog configuration, see Configuring Syslog Message Forwarding for Nokia IPSO

In addition, we recommend configuring iptables and auditd logging.

To configure iptables, see Configuring Logging for Linux iptables
To configure auditd logging, see Configuring Syslog Plugin for auditd

Note: Additional configuration is required for IBM AIX and SUSE Linux 12.

To configure FTP to log FTP sessions and debug information for IBM AIX, see Configuring FTP to Log FTP Sessions and Debug Information for IBM AIX
To configure event date format for SUSE Linux 12, see Configuring Event Date Format for SUSE Linux

Configuring Syslog Message Forwarding Using syslogd

To configure syslog message forwarding using syslogd:

From a Unix server, login with root privileges.
To stop syslogd, at the command prompt, type the following command as required:

HP-UX	/sbin/init.d/syslogd stop
IBM AIX	stopsrc -s syslogd
Solaris 8 and 9	/etc/init.d/syslog stop

Use a text editor, such as vi, to open and edit the /etc/syslog.conf file.

Add the following line in the syslog.conf file: *.info @IP_address_of_the_LCP

For example: *.info @192.0.2.1, where 192.0.2.1 is the IP address of the LCP.

2. Save and close the syslog.conf file.

3. To start or restart syslogd, type the following command as required:

HP-UX	/sbin/init.d/syslogd start
IBM AIX	startsrc -s syslogd
Solaris 8 and 9	/etc/init.d/syslog start
Solaris 10 and 11	svcadm restart svc:/system/system-log
Red Hat Linux 3-5, Debian Linux 3 - 4.9	/etc/init.d/syslogd restart
Red Hat Linux 6, Oracle Linux 5.0 - 6.5, CentOS 5.0 - 6.5	/etc/init.d/rsyslog restart
Mac OS X	Run the terminal utility and then at the command prompt, type the following command to restart syslogd: launchctl unload /System/Library/ LaunchDaemons/com.apple.syslogd.plist; sleep1; launchctl load /System/Library/ LaunchDaemons/com.apple.syslogd.plist Note: This command must be entered in one line, there is no carriage return or linefeed.

Configuring Syslog Message Forwarding Using rsyslogd (RHEL/Huawei EulerOS/Alma Linux)

To configure syslog message forwarding using rsyslogd:

From a Unix server, login with root privileges.
To stop rsyslogd, at a command prompt, type the following command:

For SUSE Linux and Ubuntu Linux: service rsyslog stop
For other Linux distributions: /etc/init.d/rsyslog stop

Use a text editor, such as vi, to open and edit the following file:

For Ubuntu Linux: /etc/rsyslog.d/50-default.conf
For other Linux distributions: /etc/rsyslog.conf

Add one of the following lines at the end of the rsyslog.conf file:

For UDP forwarding, add *.info @IP_address_of_the_LCP
For TCP forwarding, add *.info @@IP_address_of_the_LCP

Examples:

For UDP forwarding: *.info @192.0.2.1, where 192.0.2.1 is the IP address of the LCP.

For TCP forwarding: *.info @@192.0.2.1, where 192.0.2.1 is the IP address of the LCP.

Save and close the rsyslog.conf file.
To restart rsyslogd, at a command prompt, type the following command:

For SUSE Linux and Ubuntu Linux: service rsyslog restart
For other Linux distributions: /etc/init.d/rsyslog restart

Configuring Syslog Message Forwarding Using syslog-ng

To configure syslog message forwarding using syslog-ng:

From a Unix server, login with root privileges.
Use a text editor, such as vi, to open and edit the following file: /etc/syslog-ng/syslog-ng.conf
Add the following lines in the syslog-ng.conf file:

destination d_label_for_lcp { udp(lcp_ip_address port(preferred_port_number)); };

filter f_label_that_identifies_the_filter { facility(info..emerg) and not facility (mail,cron); };

log { source(src); filter(f_label_that_identifies_the_filter); destination(d_label_for_lcp); };

For example:

destination d_lcp { udp(192.0.2.1 port(514)); }; filter f_lcpfilter { facility(info..emerg) and not facility (mail,cron); }; log { source(src); filter(f_lcpfilter); destination(d_lcp); };

Where:

udp - Protocol configured.
192.0.2.1 - IP address of the LCP.
514 - Default port on which the LCP is configured to listen (preferred).
source (src) - default syslog-ng, "source src" should already be defined in the syslog-ng.conf file.
The filter parameter is optional.

Note: To configure TCP protocol, follow steps 1-3 and use "tcp" instead of "udp". Also use "601" instead of "514", where 601 is the default TCP port.

Save and close the syslog-ng.conf file.
To restart syslog-ng, at a command prompt, type the following command: service syslog restart

Configuring Logging for Linux iptables

Linux iptables use the following options to set the logging format for events:

-- log-level
-- log-prefix
-- log-tcp-sequence
-- log-tcp-options
-- log-ip-options

Sample iptables Rule

iptables -A INPUT -i eth0 -p tcp -s 192.0.2.1--dport 22 -j LOG --log-prefix "IPT: SSH DENY "--log-level info --log-tcp-sequence --log-tcp-options--log-ip-options

Configuring Syslog Plugin for auditd

Note: If syslog plugin for auditd is not installed on the server, refer to the vendor repository for installation.

To configure syslog plugin for auditd:

From a Unix server, login with root privileges.
To stop the audit process, at a command prompt, type the following command: /etc/init.d/auditd stop
Use a text editor, such as vi, to open and edit the following file: /etc/audisp/plugins.d/syslog.conf
Add the following line to the /etc/audisp/plugins.d/syslog.conf file: active = yes
Save and close the /etc/audisp/plugins.d/syslog.conf file.
To restart the audit process, at a command prompt, type the following command: /etc/init.d/auditd start

Configuring FTP to Log FTP Sessions and Debug Information for IBM AIX

To configure FTP to log FTP sessions and debug information for IBM AIX:

On an AIX server, at the Unix prompt, login with root privileges.
Use an editor, such as vi, to open and edit the following file: /etc/inetd.conf
Configure the FTP daemon with -l and -d parameters. A sample configuration is as follows: ftp stream tcp nowait root /usr/sbin/ftpd -l -d
Save and close the inetd.conf file.
Stop and restart the FTP subserver by typing the following commands:

stopsrc -t ftp
startsrc -t ftp

Configuring Syslog Message Forwarding for Nokia IPSO

To configure syslog message forwarding for Nokia IPSO:

Login to the Nokia Network Voyager Web console with root privileges.
Click System Configuration > System Logging.
Under Remote system logging, in the Add new remote IP address to log to field, enter the IP address of the LCP.
Click Apply. The IP address of the LCP should appear in the list.
From the Log at or above severity list, select Info.
Click Apply and then Save.

Configuring Event Date Format for SUSE Linux

To configure event date format for SUSE Linux:

From a SUSE Linux server, login with root privileges.
To stop rsyslogd, at a command prompt, type the command: service rsyslog stop-
Use a text editor, such as vi, to open and edit the following file: /etc/rsyslog.conf
Add the following line to the /etc/rsyslog.conf file: $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
Save and close the /etc/rsyslog.conf file.
To restart rsyslog, at a command prompt, type the command: service rsyslog start

LCP Configuration Parameters

Table 1-2: The Unix OS event collector (Syslog -3252) properties to be configured by Accenture are given in the table.

Property	Default Value	Description
Protocol	UDP	The default protocol for syslog. The collector can also accept logs in TCP. Note: While TCP offers guaranteed delivery of log packets, it places a larger overhead on the LCP. To balance TCP for reliability over UDP for speed/simplicity, contact the Accenture Security Onboarding team.
IP Address	Unix OS Interface IP address	Logging device IP address mentioned in the Pre-Installation Questionnaire (PIQ). Note: If the device sends logs using multiple interfaces, contact the Accenture Security Onboarding team.
Signatures	ipmon, audispd:, named, httpd:, login:, dhclient, sshd, su, LOGIN, pam_unix, xinetd, kernel, useradd, adduser, userdel, gdm, rpc.statd, usermod, init:, reboot:, ftpd, last message repeated, shutdown:, Firewall[, passwd, shadow, in.telnetd, audit:, SuSEfirewall2:, auditd, gnome-keyring-daemon, vsftpd:, chage, groupdel, groupadd, vsftpd[, , login[, groupmod, unix_chkpwd, chpasswd, gdm-session-worker	Accenture Security recommended signatures processed by the Unix event collector.
Port Number	514	The default port for UDP. For TCP, the default port is 601. Note: The LCP can be configured to listen on a non-standard port, please advise the Accenture Security Onboarding team if this is a requirement.