diff --git a/install.sh b/install.sh
index 1322176..6f143ee 100644
--- a/install.sh
+++ b/install.sh
@@ -83,6 +83,11 @@ loginuser ALL=(ALL) NOPASSWD: /usr/sbin/dhclient eth0
 loginuser ALL=(ALL) NOPASSWD: /usr/sbin/reboot
 EOF 
 
+# Setze TCP-Keepalive
+echo "net.ipv4.tcp_keepalive_time = 60" >> /etc/sysctl.conf
+echo "net.ipv4.tcp_keepalive_intvl = 10"  >> /etc/sysctl.conf
+echo "net.ipv4.tcp_keepalive_probes = 6"  >> /etc/sysctl.conf
+
 # Disable root
 echo -e "${RED}→${NC} Disabling root login..." | tee -a /var/log/install
 sudo tee /etc/ssh/sshd_config >/dev/null << 'EOF'