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sudo yum update

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# ¼ì²é·À»ðǽ״̬
sudo systemctl status firewalld

# Æô¶¯·À»ðǽ
sudo systemctl start firewalld

# ×èÖ¹·À»ðǽ
sudo systemctl stop firewalld

# ¿ª»úÆô¶¯·À»ðǽ
sudo systemctl enable firewalld

# ¹Ø±Õ¿ª»úÆô¶¯
sudo systemctl disable firewalld

# ¿ªÆô¶Ë¿Ú
sudo firewall-cmd --zone=public --add-port=80/tcp --permanent

# ÖØмÓÔعæÔò
sudo firewall-cmd --reload

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# ÌìÉúÃÜÔ¿¶Ô
ssh-keygen -t rsa

# ¸´Öƹ«Ô¿µ½Ð§ÀÍÆ÷
ssh-copy-id user@server

# ÐÞ¸ÄSSHÉèÖÃÎļþ
sudo vi /etc/ssh/sshd_config
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PasswordAuthentication no
PubkeyAuthentication yes

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# ÐÞ¸ÄSSHÉèÖÃÎļþ
sudo vi /etc/ssh/sshd_config
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MaxAuthTries 3

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# ×°ÖÃNginx
sudo yum install nginx

# ÌìÉúSSLÖ¤Êé
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/nginx/nginx.key -out /etc/nginx/nginx.crt

# ÉèÖÃNginx
sudo vi /etc/nginx/conf.d/default.conf
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server {
  listen 443 ssl;
  ssl_certificate /etc/nginx/nginx.crt;
  ssl_certificate_key /etc/nginx/nginx.key;
  ...
}

# ÖØÆôNginx
sudo systemctl restart nginx

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ÈëÇÖ¼ì²âϵͳ£¨Intrusion Detection System£¬¼ò³ÆIDS£©¿ÉÒÔ¼à¿ØЧÀÍÆ÷ÉϵÄÒì³£ÐÐΪºÍ¶ñÒâÔ˶¯£¬²¢ÊµÊ±½ÓÄÉÏìÓ¦µÄ²½·¥¡£ÒÔÏÂÊÇÒ»¸öʾÀý£¬Ê¹ÓÃSnort×÷ΪIDS£º

# ×°ÖÃSnort
sudo yum install epel-release -y
sudo yum install snort -y

# ÉèÖÃSnort
sudo vi /etc/snort/snort.conf
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# Æô¶¯Snort
sudo snort -d -c /etc/snort/snort.conf

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