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fix: fail2ban jail config broken on modern Debian and multi-server setups #24

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fix: fail2ban jail config broken on modern Debian and multi-server setups #24

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11 changes: 8 additions & 3 deletions fortress_improved.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -1303,7 +1303,7 @@ module_fail2ban() {
local has_web_server=false
local has_mail_server=false
local ssh_has_password_auth=true

command -v apache2 &>/dev/null && has_web_server=true
command -v nginx &>/dev/null && has_web_server=true
command -v postfix &>/dev/null && has_mail_server=true
Expand Down Expand Up @@ -1366,17 +1366,22 @@ action = ${f2b_action}
[sshd]
enabled = ${ssh_has_password_auth}
port = ssh
logpath = /var/log/auth.log
backend = systemd
EOF

if [[ "${has_web_server}" == "true" ]]; then
if command -v nginx &>/dev/null; then
${SUDO} tee -a /etc/fail2ban/jail.local > /dev/null << 'EOF'

[nginx-http-auth]
enabled = true
filter = nginx-http-auth
port = http,https
logpath = /var/log/nginx/error.log
EOF
fi

if command -v apache2 &>/dev/null; then
${SUDO} tee -a /etc/fail2ban/jail.local > /dev/null << 'EOF'

[apache-auth]
enabled = true
Expand Down