如何在Ubuntu 16.04 LTS服务器上安装FreeRADIUS?

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四、安装和配置FreeRADIUS 

1、由于Ubuntu 16.04系统,版本2.x是官方存储库中提供的软件包,要安装3.0版,请为FreeRADIUS版本3添加PPA:

1 sudo add‐apt‐repository ppa:freeradius/stable‐3.0
2 sudo apt‐get update

安装以下FreeRADIUS软件包:

1 sudo apt‐get install freeradius freeradius‐mysql freeradius‐utils
2 sudo ufw allow to any port 1812 proto udp
3 sudo ufw allow to any port 1813 proto udp

并在调试模式下运行它

1 sudo freeradius ‐X

输出应该很长,并以这样的内容结尾

1 Listening on auth address * port 1812 bound to server default
2 Listening on acct address * port 1813 bound to server default
3 Listening on auth address :: port 1812 bound to server default
4 Listening on acct address :: port 1813 bound to server default
5 Listening on auth address 127.0.0.1 port 18120 bound to server inner‐tunnel
6 Listening on proxy address * port 42463
7 Listening on proxy address :: port 55492
8 Ready to process requests

按Ctrl+C退出调试模式。

2、检查目录下是否有schema.sql文件

1 cd /etc/freeradius/mods‐config/sql/main/mysql
2 find schema.sql

3 若提示没有找到该文件,可能是安装出错没有生成也可能是目录层次不同,可尝试下:find ‐name "schema.sql"

若提示在目录下能找到这个文件则导入freeradius MySQL数据库方案:

1 sudo mysql ‐u root ‐p radius < /etc/freeradius/mods‐config/sql/main/mysql/schema.sql

3、检查创建的表:

1 mysql ‐u root ‐p ‐e "use radius;show tables;"

会显示这样图形输出例子

1 +‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐+
2 | Tables_in_radius |
3 +‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐+
4 | nas |
5 | radacct |
6 | radcheck |
7 | radgroupcheck |
8 | radgroupreply |
9 | radpostauth |
10 | radreply |
11 | radusergroup |
12 +‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐+

4、创建一个从SQL模块到/etc/freeradius/3.0/mods启用目录的符号链接:

1 sudo ln ‐s /etc/freeradius/mods‐available/sql /etc/freeradius/mods‐enabled/

5、配置SQL模块并更改数据库连接参数以适合你的环境:

1 sudo vim /etc/freeradius/mods‐enabled/sql

你的sql部分应该类似于下面的部分:如果你有专用数据库服务器,请将localhost替换为源FreeRadius服务器的IP:

1 sql {
2 driver = "rlm_sql_mysql"
3 dialect = "mysql"
4 # Connection info:
5 server = "localhost"
6 port = 33067 login = "radius"
8 password = "123456"
9 # Database table configuration for everything except Oracle
10 radius_db = "radius"
11 }
12 # Set to ‘yes’ to read radius clients from the database (‘nas’ table)
13 # Clients will ONLY be read on server startup.
14 read_clients = yes
15
16 # Table to keep radius client info
17 client_table = "nas"

6、然后更改/etc/freeradius/mods-enabled/sql的组权限:

1 sudo chgrp ‐h freerad /etc/freeradius/mods‐available/sql
2 sudo chown ‐R freerad:freerad /etc/freeradius/mods‐enabled/sql

重启freeradius服务:

1 sudo systemctl restart freeradius.service

最后,我们将在调试模式下运行FreeRADIUS以确保一切正常工作。

7、首先停止当前运行的服务

1 sudo systemctl stop freeradius.service

在调试模式下运行FreeRADIUS

1 sudo freeradius ‐X

输出的末尾应该是这样的

1 Listening on auth address * port 1812 bound to server default
2 Listening on acct address * port 1813 bound to server default
3 Listening on auth address :: port 1812 bound to server default
4 Listening on acct address :: port 1813 bound to server default
5 Listening on auth address 127.0.0.1 port 18120 bound to server inner‐tunnel
6 Listening on proxy address * port 55873
7 Listening on proxy address :: port 46059
8 Ready to process requests

按Ctrl+C退出调试模式。

8、重新启动FreeRADIUS服务。

1 sudo systemctl start freeradius.service

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