當我嘗試在 Ubuntu Server 16.04 上安裝 failed2ban 時
apt-get -install fail2ban
我收到錯誤訊息：「處理fail2ban時遇到錯誤」我已嘗試使用這些命令卸載fail2ban，但當我嘗試安裝此軟體包時仍然收到此錯誤訊息。
apt-get purge fail2ban
apt-get autoremove
apt-get autoclean
dpkg --configure -a
apt-get dist-upgrade
apt-get -f install
apt-get update
apt-get upgrade
/etc/fail2ban/jail.local
[pureftp]
enabled = true
port = ftp
filter = pureftp
logpath = /var/log/syslog
maxretry = 3
[dovecot-pop3imap]
enabled = true
filter = dovecot-pop3imap
action = iptables-multiport[]name=dovecot-pop3imap, port="pop3,pop3s,imap,imaps", protocol=tcp
logpath = /var/log/mail.log
maxretry = 5
[postfix-sasl]
enabled = true
port = smtp
filter = postfix-sasl
logpath = /var/log/mail.log
maxretry = 3
如果您需要更多信息，請詢問。
有人可以幫幫我嗎 ？