1、交换机配置（本案例使用华三交换机）

hwtacacs scheme tacacs
primary authentication 172.18.34.45
primary authorization 172.18.34.45
primary accounting 172.18.34.45
key authentication cipher 3cSQRKlqv25kY6zvoAtPfqkKyr42LdnT57kh6V
key accounting cipher 3$gklXXuVEMVLUcHFL0WX1t33g7BDhXciJRcb2
user-name-format without-domain

domain hwtacacs
authorization command hwtacacs-scheme tacacs
accounting command hwtacacs-scheme tacacs
authentication default hwtacacs-scheme tacacs local
authorization default hwtacacs-scheme tacacs local
accounting default hwtacacs-scheme tacacs local

domain default enable hwtacacs

line vty 0 15
command authorization
command accounting

2、用户管理平台FreeIPA安装

系统版本 CentOS Linux release 7.3.1611 (Core)，关闭防火墙
yum install ipa-server bind bind-dyndb-ldap
echo "172.18.34.45 ipa.test.org ipa" >>/etc/hosts
ipa-server-install 会自动安装全部默认回车
https://ipa.test.org/ 安装过程中会提示用户名和输入密码，默认用户admin
可能会遇到的报错，如遇到messagebus服务报错，执行以下命令，然后卸载重装。
systemctl restart messagebus
systemctl start certmonger
ipa-server-install —uninstall
ipa-server-install
日志目录
tail -f /var/log/dirsrv/slapd-TEST-ORG/access
tail -f /var/log/dirsrv/slapd-TEST-ORG/errors
设置IPA：

image.png

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3、TACACS安装配置

yum install gcc perl-LDAP wget
wget http://www.pro-bono-publico.de/projects/src/DEVEL.201706241310.tar.bz2
tar xvfj DEVEL.201706241310.tar.bz2
cd /PROJECTS
./configure
make && make install
mkdir /var/log/tac_plus
mkdir /var/log/tac_plus/access
mkdir /var/log/tac_plus/acct
mkdir /var/log/tac_plus/authen
mkdir /var/log/tac_plus/author
chmod 760 -R /var/log/tac_plus/
cp ~/PROJECTS/tac_plus/extra/tac_plus.service /etc/systemd/system/
systemctl daemon-reload
cp ~/PROJECTS/tac_plus/extra/tac_plus.cfg-ads /usr/local/etc/tac_plus.cfg
chmod 660 /usr/local/etc/tac_plus.cfg
TACACS 配置文件
!/usr/local/sbin/tac_plus
id = spawnd {
listen = { port = 49 }
spawn = {
instances min = 1
instances max = 10
}
background = yes
}

id = tac_plus {
access log = /var/log/tac_plus/access/%Y%m%d.log
authentication log = /var/log/tac_plus/authen/%Y%m%d.log
authorization log = /var/log/tac_plus/author/%Y%m%d.log
accounting log = /var/log/tac_plus/acct/%Y%m%d.log

mavis module = external {
    setenv LDAP_SERVER_TYPE = "microsoft"
    setenv LDAP_HOSTS = "ldap://ipa.test.org:389"
    setenv LDAP_SCOPE = "sub"
    setenv LDAP_BASE = "cn=users,cn=accounts,dc=test,dc=org"
    setenv LDAP_FILTER= "(uid=%s)"
    setenv REQUIRE_TACACS_GROUP_PREFIX = 1
    setenv FLAG_USE_MEMBEROF = 1
    exec = /usr/local/lib/mavis/mavis_tacplus_ldap.pl
}

login backend = mavis
user backend = mavis
pap backend = mavis
      skip missing groups = yes
        cache timeout = 21600

host = world {
    address = ::/0
    prompt = "Welcome\n"
    enable 15 = clear secret
    key = XXXX (与交换机key一致)
}

group = admin {
    default service = permit
    service = shell {
        default command = permit
        default attribute = permit
        set priv-lvl = 15
    }
}

group = guest {
    default service = deny
    enable = deny
    service = shell {
        default command = deny
        default attribute = permit
        set priv-lvl = 1
        cmd = display {
              deny diagnostic-information
              permit .*
        }
        cmd = ping { permit .* }
    }
}

}
tacacs服务管理：
systemctl enable tac_plus
systemctl restart tac_plus
systemctl status tac_plus
tacacs日志管理：
access log = /var/log/tac_plus/access/%Y%m%d.log
authentication log = /var/log/tac_plus/authen/%Y%m%d.log
authorization log = /var/log/tac_plus/author/%Y%m%d.log
accounting log = /var/log/tac_plus/acct/%Y%m%d.log