Linux 版 SoftEther VPN クライアントのアンインストール方法

前書き

SoftEther VPN のテストをあれこれやるとき、アンインストールする必要が出てくる。CLI でのやり方をここに残しておこうと思う。

事前確認

VPN プロセスの確認

$ ps -ef | grep vpn
 root         610       1  0 Feb07 ?        00:00:00 /usr/local/vpnclient/vpnclient execsvc
 root         611     610  0 Feb07 ?        08:08:33 /usr/local/vpnclient/vpnclient execsvc
 nobi     2078794 2078781  0 18:22 pts/0    00:00:00 grep --color=auto vpn
$

systemctl の確認

$ sudo systemctl status vpnclient
 ● vpnclient.service - SoftEther VPN Client
      Loaded: loaded (/etc/systemd/system/vpnclient.service; enabled; vendor preset: enabled)
      Active: active (running) since Sun 2021-02-07 15:27:14 JST; 4 months 4 days ago
    Main PID: 610 (vpnclient)
       Tasks: 25 (limit: 629145)
      Memory: 3.0M
      CGroup: /system.slice/vpnclient.service
              ├─610 /usr/local/vpnclient/vpnclient execsvc
              └─611 /usr/local/vpnclient/vpnclient execsvc
 Feb 07 15:27:14 ik1-438-51133 systemd[1]: Starting SoftEther VPN Client…
 Feb 07 15:27:14 ik1-438-51133 vpnclient[595]: The SoftEther VPN Client service has been started.
 Feb 07 15:27:14 ik1-438-51133 systemd[1]: Started SoftEther VPN Client.
$

SoftEther VPN クライアントを停止する

$ sudo systemctl stop vpnclient
$ sudo systemctl status vpnclient
 ● vpnclient.service - SoftEther VPN Client
      Loaded: loaded (/etc/systemd/system/vpnclient.service; enabled; vendor preset: enabled)
      Active: inactive (dead) since Sun 2021-06-13 18:23:44 JST; 4s ago
     Process: 2078816 ExecStop=/usr/local/vpnclient/vpnclient stop (code=exited, status=0/SUCCESS)
    Main PID: 610 (code=exited, status=0/SUCCESS)
 Feb 07 15:27:14 ik1-438-51133 systemd[1]: Starting SoftEther VPN Client…
 Feb 07 15:27:14 ik1-438-51133 vpnclient[595]: The SoftEther VPN Client service has been started.
 Feb 07 15:27:14 ik1-438-51133 systemd[1]: Started SoftEther VPN Client.
 Jun 13 18:23:43 ik1-438-51133 systemd[1]: Stopping SoftEther VPN Client…
 Jun 13 18:23:43 ik1-438-51133 vpnclient[2078816]: Stopping the SoftEther VPN Client service …
 Jun 13 18:23:44 ik1-438-51133 vpnclient[2078816]: SoftEther VPN Client service has been stopped.
 Jun 13 18:23:44 ik1-438-51133 systemd[1]: vpnclient.service: Succeeded.
 Jun 13 18:23:44 ik1-438-51133 systemd[1]: Stopped SoftEther VPN Client.
$

SoftEther VPN クライアントが自動起動しないようにする。

$ sudo systemctl disable vpnclient
 Removed /etc/systemd/system/graphical.target.wants/vpnclient.service.
$ ls -l /etc/systemd/system/graphical.target.wants/vpnclient.service
 ls: cannot access '/etc/systemd/system/graphical.target.wants/vpnclient.service': No such file or directory
$ sudo systemctl status vpnclient
 Unit vpnclient.service could not be found.
$

残り処理

/etc/systemd/system ディレクトリにある VPN クライアント関連ファイルも削除しておく。

$ ls -l /etc/systemd/system/vpnclient.service
 -rw-r--r-- 1 root root 229 Jan 16 22:22 /etc/systemd/system/vpnclient.service
$ sudo rm /etc/systemd/system/vpnclient.service
$