Update Linux/SSH/README.md
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@@ -103,6 +103,9 @@ else
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log "Host-Schlüssel ssh_host_ed25519_key ist bereits vorhanden."
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fi
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sudo rm -f $SSH_CONFIG_DIR/*
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echo "Include $SSH_CONFIG_DIR/*" | sudo tee $SSH_MAIN_CONFIG > /dev/null
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echo -en "${BLUE}Welche Benutzer dürfen sich per SSH anmelden? (Benutzer durch ${WHITE}Leerzeichen${BLUE} trennen): ${RESET}"
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read SSH_USERS
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@@ -137,6 +140,49 @@ for user in $SSH_USERS; do
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fi
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done
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warn "Erstelle SSH-Konfigurationsdatei..."
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sudo tee $SSH_CONFIG_FILE > /dev/null <<EOL
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# SSHD Config – Maximale Sicherheit (Nur IPv4)
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Include $SSH_CONFIG_DIR
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AddressFamily inet
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Port 22
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Protocol 2
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HostKey /etc/ssh/ssh_host_ed25519_key
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KexAlgorithms curve25519-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,diffie-hellman-group14-sha256
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Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
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MACs hmac-sha2-512,hmac-sha2-256
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SyslogFacility AUTHPRIV
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LogLevel VERBOSE
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LoginGraceTime 30s
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PermitRootLogin no
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PubkeyAuthentication yes
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PasswordAuthentication no
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ChallengeResponseAuthentication no
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UsePAM yes
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X11Forwarding no
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PrintMotd no
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AuthorizedKeysFile .ssh/authorized_keys
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Subsystem sftp /usr/lib/openssh/sftp-server
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ClientAliveInterval 300
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ClientAliveCountMax 2
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AllowUsers $VALID_USERS
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EOL
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warn "Prüfe SSH-Konfiguration..."
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sudo sshd -t && sudo systemctl restart sshd && log "SSH-Dienst erfolgreich neu gestartet."
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log "Setup abgeschlossen! Nur folgende Benutzer dürfen sich per SSH anmelden: ${WHITE}$VALID_USERS"
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log "Prüfe SSH-Konfiguration..."
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if sudo sshd -t && sudo systemctl restart sshd; then
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log "SSH-Dienst erfolgreich neu gestartet."
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