Centos6.5部署Rsyslog+LogAnalyzer收集网络及系统日志

1. 介绍

Rsyslog是比syslog功能更强大的日志记录系统,可以将日志输出到文件,数据库和其它程序.可以使用rsyslog替换系统自带的syslog。

LogAnalyzer 是一个 syslog 和其他网络事件数据的 Web 前端工具,提供简单易用的日志浏览、搜索和基本分析以及图表显示。数据可以从数据库或一般的syslog文本文件中获取，所以LogAnalyzer不需要改变现有的记录架构。基于当前的日志数据，它可以处理syslog日志消息，Windows事件日志记录，支持故障排除，使用户能够快速查找日志数据中看出问题的解决方案。LogAnalyzer 获取客户端日志会有两种保存模式，一种是直接读取客户端/var/log/目录下的日志并保存到服务端该目录下，一种是读取后保存到日志服务器数据库中，推荐使用后者。

LogAnalyzer 采用php开发，所以日志服务器需要php的运行环境。

2. 系统环境

本文环境为CENTOS 6.5平台部署Rsyslog+LogAnalyzer+LAMP。

3. 安装LAMP

# yum install mysql-server mysql-devel libcurl-devel net-snmp-devel php php-gd php-xml php-mysql httpd

[root@log ~]# /etc/init.d/httpd start

[root@log ~]# /etc/init.d/mysqld start

[root@log ~]# chkconfig mysqld on

[root@log ~]# chkconfig httpd on

[root@log ~]# chkconfig rsyslog on

[root@log ~]# mysqladmin -uroot password '123456'

测试PHP

[root@log ~]# cd /var/www/html/

[root@log html]# cat > index.php << EOF

> <?php

> phpinfo();

> ?>

> EOF

LAMP环境配置完毕。

4.配置服务器端

4.1.检查并安装服务器端软件

[root@log ~]# rpm -qa |grep rsyslog

rsyslog-5.8.10-8.el6.x86_64

[root@log ~]# yum install rsyslog-mysql -y

4.2.导入rsyslog-MySQL数据库文件

[root@log ~]# cd /usr/share/doc/rsyslog-mysql-5.8.10/

[root@log rsyslog-mysql-5.8.10]# mysql -uroot -p123456 < createDB.sql

查看操作是否生效

[root@log ~]# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 5

Server version: 5.1.73 Source distribution

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

导入数据库操作创建了Syslog 库并在该库中创建了两张空表SystemEvents 和SystemEventsProperties。

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| Syslog |

| mysql |

| test |

+--------------------+

4 rows in set (0.00 sec)

mysql> use Syslog

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql> show tables;

+------------------------+

| Tables_in_Syslog |

+------------------------+

| SystemEvents |

| SystemEventsProperties |

+------------------------+

2 rows in set (0.00 sec)

创建rsyslog用户在mysql下的相关权限

mysql> grant all on Syslog.* to rsyslog@localhost identified by '123456';

Query OK, 0 rows affected (0.00 sec)

刷新

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> exit

Bye

4.3.设置rsylog.conf

[root@log ~]# vim /etc/rsyslog.conf

配置服务端支持rsyslog-mysql 模块，并开启UDP服务端口获取网内其他LINUX系统日志

（1）在#### MODULES ####上面一行添加

$ModLoad ommysql

*.* :ommysql:localhost,Syslog,rsyslog,123456

注：localhost 表示本地主机，Syslog 为数据库名，rsyslog 为数据库的用户，123456为该用户密码。

（2）开启相关日志模块

支持标记日志

$ModLoad immark

支持udp日志

$ModLoad imudp

$UDPServerRun 514 #允许514端口接收使用UDP和TCP协议转发过来的日志

重启服务

[root@log ~]# /etc/init.d/rsyslog restart

Shutting down system logger: [ OK ]

Starting system logger: [ OK ]

4.4.放行80端口

[root@log ~]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT

4.5.安全配置

#cd /var/www/html/loganalyzer

#chmod 644 config.php

5.客户端

5.1.Linux主机

[root@pstation ~]# ping 10.225.11.249

PING 10.225.11.249 (10.225.11.249) 56(84) bytes of data.

64 bytes from 10.225.11.249: icmp_seq=1 ttl=64 time=1.58 ms

64 bytes from 10.225.11.249: icmp_seq=2 ttl=64 time=0.351 ms

--- 10.225.11.249 ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 1357ms

rtt min/avg/max/mdev = 0.351/0.967/1.583/0.616 ms

[root@pstation ~]# rpm -qa | grep rsyslog

rsyslog-5.8.10-10.el6_6.x86_64

编辑配置文件，shift+G到最后一行，添加如下内容

将系统日志发送到日志服务器。

[root@pstation ~]# vim /etc/rsyslog.conf

#send syslog to LogServer

*.* @10.225.11.249

[root@pstation ~]# /etc/init.d/rsyslog restart

Shutting down system logger: [ OK ]

Starting system logger: [ OK ]

编辑/etc/bashrc，客户端执行的所有命令写入系统日志/var/log/messages中。

shift+G到最后一行，添加如下内容

[root@pstation ~]# vim /etc/bashrc

export PROMPT_COMMAND='{ msg=$(history 1 | { read x y; echo $y; });logger "[euid=$(who

ami)]":$(who am i):[`pwd`]"$msg"; }'

使之生效

[root@pstation ~]# source /etc/bashrc

5.2.测试是否服务正常

客户端

[root@pstation ~]# ll

total 40

-rw-------. 1 root root 1001 Jan 17 07:17 anaconda-ks.cfg

-rw-r--r--. 1 root root 22430 Jan 17 07:17 install.log

-rw-r--r--. 1 root root 5890 Jan 17 07:15 install.log.syslog

[root@pstation ~]# mkdir /zhang

[root@pstation ~]# cd /zhang/

[root@pstation zhang]# touch test.txt

[root@pstation zhang]# ll

total 0

-rw-r--r--. 1 root root 0 Apr 20 13:05 test.txt

服务端查看

[root@log ~]# tailf /var/log/messages（实时查看）

或

[root@log ~]# tail -10 /var/log/messages

Apr 20 12:21:31 log rsyslogd: -- MARK --

Apr 20 12:41:31 log rsyslogd: -- MARK --

Apr 20 13:01:06 pstation kernel: imklog 5.8.10, log source = /proc/kmsg started.

Apr 20 13:01:06 pstation rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="26902" x-info="http://www.rsyslog.com"] start

Apr 20 13:05:16 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]source /etc/bashrc

Apr 20 13:05:34 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]ll

Apr 20 13:05:47 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]mkdir /zhang

Apr 20 13:05:49 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]cd /zhang/

Apr 20 13:05:56 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]touch test.txt

Apr 20 13:06:00 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]ll

5.3.网络设备

配置NE40/NE80路由器的日志发送功能

默认情况下，NE40/NE80路由器上记录、发送日志的功能是关闭的，要想使日志采集器能够收集到NE40/NE80路由器的日志，必须配置NE40/NE80，将日志发往日志采集器。

前提条件

NE40路由器的时区和时间都必须和eSight服务器保持一致。

操作步骤

配置Syslog日志发送功能。

进入系统视图。

<NE40/NE80> system-view

开启信息中心。

[NE40/NE80] info-center enable

配置允许输出所有模块、严重级别为informational的日志信息。

[NE40/NE80] info-center source default channel 2 log level informational

配置发送日志信息的源接口。

[NE40/NE80] info-center loghost source { interface-type interface-number }

配置日志采集器的IP地址，使NE40/NE80路由器将Syslog日志发送到指定的日志主机。

[NE40/NE80] info-center loghost host-ip-address facility local2 language english

配置会话日志发送功能。

说明：

NAT板、主控板不能往外发送NAT日志，需要通过其他板转发，请在其他板转发日志的端口连上网线，配置IP地址。

进入系统视图。

<NE40/NE80> system-view

启用NAT日志的记录功能。

[NE40/NE80] ip userlog nat export slot slot-id [ host host 9002 | source source-address ] *

该操作将指定槽位号的NAT日志发送到主机。eSight将日志以IP报文格式实时发送到日志服务器的相应端口，并可以指定日志的源地址。要使日志正确地送到日志主机，需要有到日志主机的可达的路由，并且在日志主机上做相应配置。

source-address指定了发送日志报文的源地址，通常使用本地的Loopback接口的地址。

NAT板上的以太网接口是专门用于NAT日志发送的接口，不能配置其他业务。NAT日志也可以通过其他的业务接口发送。

说明：

NE40/NE80的NAT日志以二进制日志形式发送，9002为日志采集器接收二进制日志所用的端口，请不要修改。

保存配置。

[NE40/NE80] quit

<NE40/NE80> save

本例以华为S12708为例

<SDXS-HXJF-S12708>sys

Enter system view, return user view with Ctrl+Z.

[SDXS-HXJF-S12708]info-ce

[SDXS-HXJF-S12708]info-center en

[SDXS-HXJF-S12708]info-center enable

Info: Information center is enabled.

控制台（ Console ）、日志缓冲区（logbuf ）、日志主机（ loghost ）、监视终端（ monitor ）SNMP六个方向的日志输出、告警缓冲区（trapbuf）。

[SDXS-HXJF-S12708]info-center source default channel ?

INTEGER<0-9> Information channel number

channel6 6 channel's name is channel6

channel7 7 channel's name is channel7

channel8 8 channel's name is channel8

channel9 9 channel's name is channel9

console 0 channel's name is console

logbuffer 4 channel's name is logbuffer

loghost 2 channel's name is loghost

monitor 1 channel's name is monitor

snmpagent 5 channel's name is snmpagent

trapbuffer 3 channel's name is trapbuffer

日志级别即日志的level: local0～local7 16～23保留为本地使用

[SDXS-HXJF-S12708]info-center source default channel 2 log level ?

alert Immediate action needed (severity=1) 必须马上采取行动来纠正的事件

critical Critical conditions (severity=2) 关键的事件，大多为关键错误

debugging Debugging messages (severity=7) 调试信息

emergencies System is unusable (severity=0) 系统不可用，极其紧急

error Error conditions (severity=3) 错误事件，需要但不需要太多关注

informational Informational messages (severity=6) 一般的信息，大多为有用的信息

notification Normal but significant conditions (severity=5) 需要注意的信息

warning Warning conditions (severity=4) 警告事件，可能存在某种差错

[SDXS-HXJF-S12708]info-center source default channel 2 log level informational

从哪个接口出去

[SDXS-HXJF-S12708]info-center loghost source ?

Eth-Trunk Ethernet-Trunk interface

Ethernet Ethernet interface

GigabitEthernet GigabitEthernet interface

LoopBack LoopBack interface

NULL NULL interface

Vlanif Vlan interface

XGigabitEthernet XGigabitEthernet interface

[SDXS-HXJF-S12708]info-center loghost source Vlanif 111

目前，系统对每个输出方向缺省分配一个信息通道

输出方向信息通道号缺省的信息通道名

控制台 0 console

监视终端 1 monitor

日志主机 2 loghost

告警缓冲区 3 trapbuffer

日志缓冲区 4 logbuffer

snmp 5 snmpagent

[SDXS-HXJF-S12708]info-center loghost 10.225.11.249 facility local?

local0 local1

local2 local3

local4 local5

local6 local7

[SDXS-HXJF-S12708]info-center loghost 10.225.11.249 facility local2 language English

Warning: There is security risk as this operation enables a non secure syslog protocol.

[SDXS-HXJF-S12708]

服务端

[root@log ~]# tail -10 /var/log/messages

Apr 20 13:05:16 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]source /etc/bashrc

Apr 20 13:05:34 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]ll

Apr 20 13:05:47 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/root]mkdir /zhang

Apr 20 13:05:49 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]cd /zhang/

Apr 20 13:05:56 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]touch test.txt

Apr 20 13:06:00 pstation root: [euid=root]:root pts/0 Apr 20 12:56 (10.225.11.197):[/zhang]ll

Apr 20 05:18:21 SDXS-HXJF-S12708 %%01SHELL/5/CMDRECORD(s)[0]: Recorded command information. (Task=VT0, Ip=10.225.11.197, VpnName=, User=petrochina, AuthenticationMethod="Local-user", Command="info-center loghost 10.225.11.249 facility local2 language English")

Apr 20 05:18:28 SDXS-HXJF-S12708 DS/4/DATASYNC_CFGCHANGE: OID 1.3.6.1.4.1.2011.5.25.191.3.1 configurations have been changed. The current change number is 176, the change loop count is 0, and the maximum number of records is 4095.

Apr 20 05:18:41 SDXS-HXJF-S12708 %%01SECE/4/ARPMISS(l)[1]: Attack occurred.(AttackType=Arp Miss Attack, SourceInterface=GigabitEthernet2/1/0/18, SourceIP=10.225.15.242, AttackPackets=54 packets per second)

Apr 20 05:18:41 SDXS-HXJF-S12708 SECE/4/ARPMISS_SIP_SPEEDLIMIT_ALARM: OID 1.3.6.1.4.1.2011.5.25.165.2.2.2.12 The arp-miss packet speed with source ip 10.225.15.242 exceed the speed-limit value configed 30.

[root@log ~]# tail -10 /var/log/messages

Apr 20 05:19:06 SDXS-HXJF-S12708 ARP/4/ARP_IPCONFLICT_TRAP: OID 1.3.6.1.4.1.2011.5.25.123.2.6 ARP detects IP conflict. (IP address=10.225.13.223, Local interface=Eth-Trunk11, Local MAC=f0de-f1b4-b74a, Local vlan=113, Local CE vlan=0, Receive interface=Eth-Trunk11, Receive MAC=a8b1-d4fb-7ad7, Receive vlan=113, Receive CE vlan=0, IP conflict type=Remote IP conflict).

Apr 20 05:19:06 SDXS-HXJF-S12708 %%01ARP/4/ARP_LOG_DUPLICATE_IPADDR_DETECT(l)[2]: Detected an IP address collision. (IpAddress=10.225.13.223, LocalMacAddress=f0de-f1b4-b74a, LocalInterfaceName=Eth-Trunk11, LocalVlanId=113, ReceiveMacAddress=a8b1-d4fb-7ad7, ReceiveInterfaceName=Eth-Trunk11, ReceiveVlanId=113)

Apr 20 05:20:20 SDXS-HXJF-S12708 %%01NTP/4/PEER_SELE(l)[3]: The peer selected by the system is 10.33.176.67.

Apr 20 05:20:26 SDXS-HXJF-S12708 %%01SECE/6/PORT_ATTACK_END(l)[4]: Auto port-defend stop.(SourceAttackInterface=GigabitEthernet2/1/0/10, AttackProtocol=ARP-REQUEST)

Apr 20 05:20:50 SDXS-HXJF-S12708 %%01MSTP/6/RECEIVE_MSTITC(l)[5]: MSTP received BPDU with TC, MSTP process 0 instance 0, port name is Eth-Trunk7.

Apr 20 05:20:59 SDXS-HXJF-S12708 %%01SNMP/4/SNMP_FAIL(s)[6]: Failed to login through SNMP. (Ip=10.225.11.137, Times=6, Reason=the version was incorrect, VPN= )

Apr 20 05:22:23 SDXS-HXJF-S12708 %%01INFO/4/SUPPRESS_LOG(l)[7]: Last message repeated 9 times.(InfoID=1082212355, ModuleName=SNMP, InfoAlias=SNMP_FAIL)

Apr 20 05:22:23 SDXS-HXJF-S12708 %%01DEFD/6/CPCAR_DROP_LPU(l)[8]: Rate of packets to cpu exceeded the CPCAR limit on the LPU in slot 2/1. (Protocol=arp-reply, CIR/CBS=64/10000, ExceededPacketCount=65)

Apr 20 05:22:23 SDXS-HXJF-S12708 %%01DEFD/6/CPCAR_DROP_LPU(l)[9]: Rate of packets to cpu exceeded the CPCAR limit on the LPU in slot 2/1. (Protocol=arp-miss, CIR/CBS=64/10000, ExceededPacketCount=141)

6.LogAnalyzer

6.1.下载与安装

如无法下载可以去http://loganalyzer.adiscon.com/downloads/下载。

[root@log app]wget http://download.adiscon.com/loganalyzer/loganalyzer-3.6.5.tar.gz

[root@log app]# tar zxvf loganalyzer-3.6.5.tar.gz

[root@log app]# cd loganalyzer-3.6.5

[root@log loganalyzer-3.6.5]# mkdir -p /var/www/html/loganalyzer

[root@log loganalyzer-3.6.5]# rsync -a src/* /var/www/html/loganalyzer/

[root@log loganalyzer-3.6.5]# cd /var/www/html/loganalyzer/

[root@log loganalyzer]# ll

total 256

drwxrwxr-x. 2 root root 4096 Oct 9 2013 BitstreamVeraFonts

drwxrwxr-x. 2 root root 4096 Oct 9 2013 admin

-rw-rw-r--. 1 root root 5509 Oct 9 2013 asktheoracle.php

-rw-rw-r--. 1 root root 18492 Oct 9 2013 chartgenerator.php

drwxrwxr-x. 6 root root 4096 Oct 9 2013 classes

-rw-rw-r--. 1 root root 9205 Oct 9 2013 convert.php

drwxrwxr-x. 2 root root 4096 Oct 9 2013 cron

drwxrwxr-x. 2 root root 4096 Oct 9 2013 css

-rw-rw-r--. 1 root root 16499 Oct 9 2013 details.php

drwxr-xr-x. 2 root root 4096 Oct 9 2013 doc

-rw-rw-r--. 1 root root 12748 Oct 9 2013 export.php

-rw-rw-r--. 1 root root 1150 Oct 9 2013 favicon.ico

drwxrwxr-x. 5 root root 4096 Oct 9 2013 images

drwxrwxr-x. 2 root root 4096 Oct 9 2013 include

-rw-rw-r--. 1 root root 38383 Oct 9 2013 index.php

-rw-rw-r--. 1 root root 41586 Oct 9 2013 install.php

drwxrwxr-x. 2 root root 4096 Oct 9 2013 js

drwxrwxr-x. 4 root root 4096 Oct 9 2013 lang

-rw-rw-r--. 1 root root 3395 Oct 9 2013 login.php

-rw-rw-r--. 1 root root 7164 Oct 9 2013 reportgenerator.php

-rw-rw-r--. 1 root root 4146 Oct 9 2013 reports.php

-rw-rw-r--. 1 root root 9438 Oct 9 2013 search.php

-rw-rw-r--. 1 root root 4878 Oct 9 2013 statistics.php

drwxrwxr-x. 3 root root 4096 Oct 9 2013 templates

drwxrwxr-x. 4 root root 4096 Oct 9 2013 themes

-rw-rw-r--. 1 root root 3383 Oct 9 2013 userchange.php

6.2.配置

在浏览器中输入http://x.x.x.x/loganalyzer

提示没有配置文件，点击 here 利用向导生成。

Step 1 - Prerequisites

Before you start installing LogAnalyzer, the Installer setup has to check a few things first.

You may have to correct some file permissions first.

Step 2 - Verify File Permissions

The following file permissions have been checked. Verify the results below!

You may use the configure.sh script from the contrib folder to set the permissions for you.

提示错误：config.php 文件不存在，并且权限要设置为666，可以使用contrib目录下的configure.sh 脚本生成。

[root@log loganalyzer]# cd /zhang/app/loganalyzer-3.6.5

[root@log loganalyzer-3.6.5]# ll

total 104

-rw-rw-r--. 1 root root 35497 Oct 9 2013 COPYING

-rw-rw-r--. 1 root root 44027 Oct 9 2013 ChangeLog

-rw-rw-r--. 1 root root 8449 Oct 9 2013 INSTALL

drwxrwxr-x. 2 root root 4096 Oct 9 2013 contrib

drwxrwxr-x. 2 root root 4096 Oct 9 2013 doc

drwxrwxr-x. 14 root root 4096 Oct 9 2013 src

[root@log loganalyzer-3.6.5]# cd contrib/

[root@log contrib]# ll

total 8

-rw-rw-r--. 1 root root 49 Oct 9 2013 configure.sh

-rw-rw-r--. 1 root root 31 Oct 9 2013 secure.sh

查看configure.sh，提示说要创建config.php，并给666的权限。

[root@log contrib]# cat configure.sh

#!/bin/sh

touch config.php

chmod 666 config.php

[root@log contrib]# cd /var/www/html/loganalyzer/

[root@log loganalyzer]# touch config.php

[root@log loganalyzer]# chmod 666 config.php

[root@log loganalyzer]# vim /etc/rsyslog.conf

刷新web或下端的recheck

Step 3 - Basic Configuration

In this step, you configure the basic configurations for LogAnalyzer.

将User Database Options下Enable User Database ===>Yes

填写下面三项

Database Name
Database User
Database Password

Step 4 - Create Tables

If you reached this step, the database connection has been successfully verified!

The next step will be to create the necessary database tables used by the LogAnalyzer User System. This might take a while!

WARNING, if you have an existing LogAnalyzer installation in this database with the same tableprefix, all your data will be OVERWRITTEN! Make sure you are using a fresh database, or you want to overwrite your old LogAnalyzer database.