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Quick HOWTO : Ch1 : Network Backups With Rancid/zh

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落寞三少讨论 | 贡献2008年8月4日 (一) 23:27的版本 安装Rancid

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简介

一个被网络管理忽略的地方是失败的网络备份硬盘的设置,悲哀的是这只是造成灾难性打击的开始。幸运的是Linux/Unix有一个叫Rancid的开源包,它可以自动地、用命令的方法快速完成为大多数驱动器设置备份这项工作。 这个产品可以从 rancid website里下载得到,在Concurrent Versions System (CVS)中还增加旧的自动归档的好外.这个指南将会给您显示如何快速安装和设置它为你的网络备份需要。


安装Rancid

在Fedora Linux 安装的Rancid是十分简单的,但接下来有很多简单的步骤,现在我们开始: 1.要想使用Rancid,你必须先安装编程语言。用RPM命令-Q查看你是否决定安装,在这里,是不可以用yum命令安装的。

[root@bigboy tmp]# rpm -q expect
package expect is not installed
[root@bigboy rancid-2.3.2a2]# yum -y install expect
Repository updates-released already added, not adding again
Repository base already added, not adding again
Setting up Install Process
...
...
...
[root@bigboy rancid-2.3.2a2]#

2)为将访问Rancid 目录增加一个名为netadm的linux组名 。

[root@bigboy tmp]# groupadd netadm

3)为了每晚能运行这个网络备份设备,我们在netadm工作组里新建一个名为rancid的用户,和新建一个目录/usr/local/rancid 。

[root@bigboy tmp]# useradd -g netadm -c "Networking Backups" -d /usr/local/rancid rancid

4) Create a directory called /usr/local/rancid/tar and use the wget command to get the latest version of the Rancid tar file from its web site.

[root@bigboy tmp]# mkdir /usr/local/rancid/tar
[root@bigboy tmp]# cd /usr/local/rancid/tar
[root@bigboy tar]# wget ftp://ftp.shrubbery.net/pub/rancid/rancid-2.3.2a2.tar.gz
--01:14:26--   ftp://ftp.shrubbery.net/pub/rancid/rancid-2.3.2a2.tar.gz
                     => `rancid-2.3.2a2.tar.gz'
...
...
...
100%[==============================>] 280,435           153.28K/s
 
01:14:58 (152.78 KB/s) - `rancid-2.3.2a2.tar.gz' saved [280,435]
[root@bigboy tar

5) Rancid needs to be compiled. Next, you will need to extract the files from the Rancid tar file as a pre-compilation step. In this case the file is named rancid-2.3.2a2.tar.gz so the extraction process will place all the preliminary files in a directory named rancid-2.3.2a2.

[root@bigboy tar]# tar -xvzf rancid-2.3.2a2.tar.gz
rancid-2.3.2a2/bin/Makefile.am
rancid-2.3.2a2/bin/Makefile.in
rancid-2.3.2a2/bin/alogin.in
...
...
...
rancid-2.3.2a2/man/lg.conf.5.in
rancid-2.3.2a2/man/rancid.conf.5.in
rancid-2.3.2a2/man/lg_intro.1.in
[root@bigboy tar]#

6) Enter the directory.

[root@bigboy tar]# cd rancid-2.3.2a2
[root@bigboy rancid-2.3.2a2]#

7) In this directory there is a README file with instructions on what to do next. You can view it using the less command to see the various configuration options offered. We will proceed in this example by using a very simple scenario.

[root@bigboy rancid-2.3.2a2]# less README

8) Prepare the Rancid package for compiling with the configure command. Here, the --prefix switch is used to set the default directory to match the /usr/local/rancid/ home directory of our rancid user.


[root@bigboy rancid-2.3.2a2]# ./configure --prefix=/usr/local/rancid/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
...
...
...
config.status: creating include/config.h
config.status: include/config.h is unchanged
config.status: executing depfiles commands
[root@bigboy rancid-2.3.2a2]#

9) Install the package with the make command.

[root@bigboy rancid-2.3.2a2]# make install
Making install in .
gmake[1]: Entering directory `/usr/local/rancid/tar/rancid-2.3.2a2'
gmake[2]: Entering directory `/usr/local/rancid/tar/rancid-2.3.2a2'
gmake[2]: Nothing to be done for `install-exec-am'.
test -z "/usr/local/rancid//share/rancid" || mkdir -p -- "/usr/local/rancid//share/rancid"
...
...
...
/usr/bin/install -c 'downreport' '/usr/local/rancid//share/rancid/downreport'
gmake[2]: Leaving directory `/usr/local/rancid/tar/rancid-2.3.2a2/share'
gmake[1]: Leaving directory `/usr/local/rancid/tar/rancid-2.3.2a2/share'
[root@bigboy rancid-2.3.2a2]#

10) There is a sample password file named cloginrc.sample. You'll need to copy it to the /usr/local/rancid/ home directory as the hidden file /usr/local/rancid/.cloginrc.

[root@bigboy rancid-2.3.2a2]# cp cloginrc.sample /usr/local/rancid/.cloginrc
[root@bigboy rancid-2.3.2a2]#

11) Finally you will need to set the .cloginrc file permissions to be readable by the rancid user and the new netadm Linux group. You will also have to change the ownership and permissions of the home directory in a similar fashion.

[root@bigboy rancid-2.3.2a2]# chmod 0640 /usr/local/rancid/.cloginrc
[root@bigboy rancid-2.3.2a2]# chown -R rancid:netadm /usr/local/rancid/
[root@bigboy rancid-2.3.2a2]# chmod 770 /usr/local/rancid/

Now that the installation is complete, you'll need to do some initial configuration to get Rancid to work. Don't worry, it is fairly straight forward.