diff --git a/dhcp b/dhcp
new file mode 100755
index 0000000..91f4f35
--- /dev/null
+++ b/dhcp
@@ -0,0 +1,22 @@
+#!/bin/nash
+
+cat > /etc/dhcp/dhcpd.conf << EOF
+default-lease-time 600;
+max-lease-time 7200;
+authoritative;
+
+subnet 192.168.4.0 netmask 255.255.255.248 {
+	range 192.168.4.2 192.168.4.6;
+	option domain-name-servers 8.8.8.8, 8.8.4.4;
+	option subnet-mask 255.255.255.248;
+	option routers 192.168.4.1;
+}
+EOF
+chmod 600 /etc/dhcp/dhcpd.conf
+
+cat > /etc/sysconfig/dhcpd << EOF
+DHCPDARGS="enp0s9"
+EOF
+
+systemctl enable dhcp
+systemctl start dhcp
diff --git a/int b/int
new file mode 100755
index 0000000..7cf4c5f
--- /dev/null
+++ b/int
@@ -0,0 +1,139 @@
+#!bin/bash
+
+a=1
+while a==1
+ do
+	echo ""
+	echo "Enter number"
+	echo ""
+	echo "1. Hostname"
+	echo "2. Calculate the mask"
+	echo "3. IP" 
+	echo "4. Forward and masquerade"
+	echo "5. Reboot"
+	echo "6. Account"
+	echo "0. Exit"
+	echo ""
+	read num
+	echo ""
+
+
+	if (( $num == 0 )); then
+		break
+
+	elif (( $num == 1 )); then
+		echo "______________________Hostname_____________________"
+		read -p "Enter name(isp.au-team.irpo): " name
+		hostnamectl set-hostname $name
+		exec bash
+	elif (( $num == 3)); then
+		echo "_____________________Enp0s3_______________________"
+		read -p "Enter ip or skip for DHCP: " ip_s3
+		if [[ -n $ip_s3 ]]; then
+			read -p "Enter gateway: " gt_s3
+			cat > /etc/NetworkManager/system-connections/enp0s3.nmconnection << EOF
+[connection]
+id=enp0s3
+uuid=$(uuidgen)
+type=ethernet
+autoconnect-priority=-999
+interface-name=enp0s3
+timestamp=$(date +%s)
+
+[ethernet]
+
+[ipv4]
+address1=$ip_s3
+dns=8.8.8.8
+gateway=$gt_s3
+method=manual
+
+[ipv6]
+addr-gen-mode=eui64
+method=disabled
+
+[proxy]
+EOF
+			chmod 600 /etc/NetworkManager/system-connections/enp0s3.nmconnection
+			systemctl restart NetworkManager
+		fi
+		echo ""
+		echo "________________________Enp0s8_________________________"
+		read -p "Enter ip or skip: " ip_s8
+		if [[ -n $ip_s8 ]]; then
+			nmcli connection modify enp0s8 ipv4.method manual ipv4.addresses $ip_s8 ipv6.method disabled
+			systemctl restart NetworkManager
+		fi
+		echo ""
+		echo "____________________________Enp0s9____________________________"
+		read -p "Enter ip or skip: " ip_s9
+		if [[ -n $ip_s9 ]]; then
+			nmcli connection modify enp0s9 ipv4.method manual ipv4.addresses $ip_s9 ipv6.method disabled
+			systemctl restart NetworkManager
+		fi
+		echo ""
+		echo "___________________________Enp0s10___________________________"
+		read -p "Enter ip or skip: " ip_s10
+		if [[ -n $ip_s10 ]]; then
+			nmcli connection modify enp0s10 ipv4.method manual ipv4.addresses $ip_s10 ipv6.method disabled
+			systemctl restart NetworkManager
+		fi
+		systemctl restart NetworkManager
+
+	elif (( $num == 4 )); then
+		echo ""
+		echo "_____________________________Forward and Masquerade__________________________"
+		sysctl net.ipv4.ip_forward=1 >> /etc/sysctl.conf
+		systemctl enable --now iptables
+		iptables -F
+		read -p "Enter ip for Masquerade: " a
+		if (( $a == 2 )); then
+			if [[ -n $ip_s8 || $ip_s9 ]]; then
+				iptables -t nat -A POSTROUTING -s $ip_s8 -o enp0s3 -j MASQUERADE
+				iptables -t nat -A POSTROUTING -s $ip_s9 -o enp0s3 -j MASQUERADE
+			else
+				read -p "Enter ip for enp0s8(192.168.0.0/30): " ip_s8
+				read -p "Enter ip for enp0s9(192.168.0.0/30): " ip_s9
+				iptables -t nat -A POSTROUTING -s $ip_s8 -o enp0s3 -j MASQUERADE
+				iptables -t nat -A POSTROUTING -s $ip_s9 -o enp0s3 -j MASQUERADE
+			fi
+		elif (( $a == 1)); then
+			if [[ -n $ip_s8 ]]; then
+				iptables -t nat -A POSTROUTING -s $ip_s8 -o enp0s3 -j MASQUERADE
+			else
+				read -p "Enter ip for enp0s8: " ip_s8
+				iptables -t nat -A POSTROUTING -s $ip_s8 -o enp0s3 -j MASQUERADE
+			fi
+		fi
+		iptables-save --file /etc/sysconfig/iptables
+
+
+	elif (( $num == 5)); then
+		read -p "Reboot?: " r
+		if (( $r == n || $r == N)); then
+			echo "123"
+		else
+			reboot
+		fi
+
+	elif (( $num == 2)); then
+		echo ""
+		echo "____________________________Calc____________________________"
+		read -p "Enter amount PC: " mask
+		mask=$(echo "sqrt($mask)" | bc)
+		mask=$((32 - $mask))
+		echo $mask
+		echo""
+
+	elif (( $num == 6)); then
+		echo "________________________Account_________________________"
+		read -p "Yes or no?: " acc
+		if [[ -n $acc ]]; then
+			read -p "Enter name acc: " acc_n
+			cat >> /etc/sudoers << EOF
+$acc_n ALL=(ALL)NOPASSWD:ALL
+EOF
+	chmod 600 /etc/sudoers
+		fi
+	fi
+done
diff --git a/tunel b/tunel
new file mode 100755
index 0000000..8acacc7
--- /dev/null
+++ b/tunel
@@ -0,0 +1,14 @@
+#!/bin/bash
+read -p "Enter local ip(172.16.0.2): " l_ip
+read -p "Enter remote ip(172.16.0.2): " r_ip
+read -p "Enter tun ip(192.168.9.1/30)" t_ip
+read -p "Enter name tunnel: " name
+
+ip link delete gre1 2>/dev/null
+
+ip tunnel add $name mode gre local $l_ip remote $r_ip ttl 64 dev enp0s3
+ip addr add $t_ip dev $name
+ip link set $name up
+
+echo "Enter nmcli connection modify gre1 ip-tunnel.ttl 64"
+systemctl restart NetworkManager