diff --git a/example-full/public-server1/setup.sh b/example-full/public-server1/setup.sh
index 385c4d8..b400ad1 100644
--- a/example-full/public-server1/setup.sh
+++ b/example-full/public-server1/setup.sh
@@ -6,9 +6,9 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp" >> /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp = 1" >>/etc/sysctl.conf
+sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers
 iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
diff --git a/example-internet-browsing-vpn/server/setup.sh b/example-internet-browsing-vpn/server/setup.sh
index 385c4d8..b400ad1 100644
--- a/example-internet-browsing-vpn/server/setup.sh
+++ b/example-internet-browsing-vpn/server/setup.sh
@@ -6,9 +6,9 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp" >> /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp = 1" >>/etc/sysctl.conf
+sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers
 iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
diff --git a/example-lan-briding/montreal/setup.sh b/example-lan-briding/montreal/setup.sh
index 385c4d8..b400ad1 100644
--- a/example-lan-briding/montreal/setup.sh
+++ b/example-lan-briding/montreal/setup.sh
@@ -6,9 +6,9 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp" >> /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp = 1" >>/etc/sysctl.conf
+sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers
 iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
diff --git a/example-lan-briding/vancouver/setup.sh b/example-lan-briding/vancouver/setup.sh
index 385c4d8..da8a726 100644
--- a/example-lan-briding/vancouver/setup.sh
+++ b/example-lan-briding/vancouver/setup.sh
@@ -6,9 +6,9 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp" >> /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp =1" >>/etc/sysctl.conf
+sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers
 iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
diff --git a/example-simple-client-to-server/server/setup.sh b/example-simple-client-to-server/server/setup.sh
index 385c4d8..b400ad1 100644
--- a/example-simple-client-to-server/server/setup.sh
+++ b/example-simple-client-to-server/server/setup.sh
@@ -6,9 +6,9 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp" >> /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp = 1" >>/etc/sysctl.conf
+sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers
 iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
diff --git a/example-simple-server-to-server/server1/setup.sh b/example-simple-server-to-server/server1/setup.sh
index 3d6b76f..b400ad1 100644
--- a/example-simple-server-to-server/server1/setup.sh
+++ b/example-simple-server-to-server/server1/setup.sh
@@ -6,8 +6,8 @@ apt update
 apt install wireguard
 
 # to enable kernel relaying/forwarding ability on bounce servers
-echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
-echo "net.ipv4.conf.all.proxy_arp = 1" >> /etc/sysctl.conf
+echo "net.ipv4.ip_forward = 1" >>/etc/sysctl.conf
+echo "net.ipv4.conf.all.proxy_arp = 1" >>/etc/sysctl.conf
 sysctl -p /etc/sysctl.conf
 
 # to add iptables forwarding rules on bounce servers