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    Hogyan készítsek biztonságos SSH szervert haladó beállításokkal?

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    Hogyan készítsek biztonságos SSH szervert haladó beállításokkal?

    iHack
    Updated on 2025.11.26.

    < 1 min read

    SSH port módosítása #

    sudo nano /etc/ssh/sshd_config
Port 2222
sudo systemctl restart sshd

    Jelszavas belépés tiltása #

    PasswordAuthentication no
ChallengeResponseAuthentication no

    Kulcsalapú hitelesítés engedélyezése #

    ssh-keygen -t ed25519
ssh-copy-id -i ~/.ssh/id_ed25519.pub user@server

    Fail2ban integráció #

    sudo apt install fail2ban
sudo nano /etc/fail2ban/jail.local
[sshd]
enabled = true
port = 2222
maxretry = 3
sudo systemctl restart fail2ban

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