SMTP Error 500
SMTP Error 500 : The last command sent by your server was not recognized as a valid SMTP or ESMTP command, or is not formatted […]
SMTP Error 500 : The last command sent by your server was not recognized as a valid SMTP or ESMTP command, or is not formatted […]
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sudo iptables -L |
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sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT |
Ubuntu 는 앞에 sudo 입력 설치: apt-get -y install ufw 활성화 : ufw enable 비활성화: ufw disable 전부막음: ufw default deny 전부허용: ufw default allow […]
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