CentOS7を使用していて、publicのzoneを残したままfirewallにオリジナルのfirewallのzoneを追加する方法を調べたメモです。CentOS7からfirewalldになっているのでCetOS6で使い慣れている人には少し使いづらいですね、
以下、CentOSのFirewalldで独自のゾーンを追加する方法です。
環境
CentOS7.5
追加するfirewallのZONE:Manage
・ゾーンの確認
firewall-cmd --get-zones
→ここに独自の「manage」というzoneを追加しようと思います。
・全てのzoneとzone毎の設定内容を確認
firewall-cmd --list-all-zones
・既存のzoneファイルディレクトリへ移動
cd /etc/firewalld/zones/
・既存ファイルを確認
ls
・punbicファイルをコピーして独自のzoneを定義する。
cp -p public.xml manage.xml
(-pオプションは権限なども丸ごとコピーみたいな感じです。詳しくはググってください笑)
・ファイルが作られたことを確認
ls
・viで開いて編集します
vi manage.xml
以下はサンプルです。
編集した所は
「short」タグ「description」タグのところです
<?xml version="1.0" encoding="utf-8"?>
<zone>
<short>Manage</short>
<description>Custom Zone. Only allow ssh connection from Manage.</description>
<service name="dhcpv6-client"/>
<service name="ssh"/>
</zone>
・編集内容を確認します
cat manage.xml
・編集後はfirewalldを再起動すればzoneが追加されます。
systemctl restart firewalld
・作成したゾーンが追加されているか確認
firewall-cmd --get-zones
以下作業ログです
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# firewall-cmd --get-zones
block dmz drop external home internal public trusted work
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# firewall-cmd --list-all-zones
block
target: %%REJECT%%
icmp-block-inversion: no
interfaces:
sources:
services:
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
dmz
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
drop
target: DROP
icmp-block-inversion: no
interfaces:
sources:
services:
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
external
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh
ports:
protocols:
masquerade: yes
forward-ports:
source-ports:
icmp-blocks:
rich rules:
home
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh mdns samba-client dhcpv6-client
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
internal
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh mdns samba-client dhcpv6-client
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
public (active)
target: default
icmp-block-inversion: no
interfaces: enp0s3 enp0s8
sources:
services: dhcpv6-client ssh
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
trusted
target: ACCEPT
icmp-block-inversion: no
interfaces:
sources:
services:
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
work
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh dhcpv6-client
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# cd /etc/firewalld/zones/
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# ls
public.xml
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# cp -p public.xml manage.xml
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# ls
manage.xml public.xml
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# vi manage.xml
"manage.xml" 7L, 315C<?xml version="1.0" encoding="utf-8"?>
<zone>
<short>Public</short>
<description>For use in public areas. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections aree accepted.</description>
<service name="dhcpv6-client"/>
<service name="ssh"/>
</zone>
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# cat manage.xml
<?xml version="1.0" encoding="utf-8"?>
<zone>
<short>Manage</short>
<description>Custom Zone. Only allow ssh connection from Manage.</description>
<service name="dhcpv6-client"/>
<service name="ssh"/>
</zone>
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# systemctl restart firewalld
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# firewall-cmd --get-zones
block dmz drop external home internal manage public trusted work
[root@localhost zones]#
[root@localhost zones]#
[root@localhost zones]# exit