Difference between revisions of "OpenVPN: Instalasi di Ubuntu 18.04"

From OnnoWiki
Jump to navigation Jump to search
Line 41: Line 41:
 
==Step 4 – Connect an OpenVPN server using IOS/Android/Linux/Windows client==
 
==Step 4 – Connect an OpenVPN server using IOS/Android/Linux/Windows client==
  
−
On server your will find a client configuration file called ~/desktop.ovpn. All you have to do is copy this file to your local desktop using the scp command:
+
Copykan file sertifikat client.ovpn ke client, misalnya menggunakan perintah,
  
−
  $ scp vivek@104.20.187.5:~/deskcop.ovpn .
+
  scp vivek@104.20.187.5:~/client.ovpn .
  
−
Next, provide this file to your OpenVPN client to connect:
+
===Linux Desktop: OpenVPN client configuration===
  
−
    Apple iOS client
+
Install,
−
    Android client
 
−
    Apple MacOS (OS X) client
 
−
    Windows 8/10 client
 
  
−
Linux Desktop: OpenVPN client configuration
+
sudo apt -y install openvpn
 +
sudo cp client.ovpn /etc/openvpn/client.ovpn
  
−
First, install the openvpn client for your desktop, enter:
+
Coba sambungan dari sisi client
−
$ sudo yum install openvpn
 
  
−
OR
+
  sudo openvpn --client --config /etc/openvpn/client.ovpn
−
  $ sudo apt install openvpn
 
  
−
Next, copy desktop.ovpn as follows:
+
Linux akan secara automatis tersambung ke computer dengan openvpn script
−
$ sudo cp desktop.ovpn /etc/openvpn/client.conf
 
  
−
Test connectivity from the CLI:
+
  sudo systemctl start openvpn@client # <--- start client service
−
  $ sudo openvpn --client --config /etc/openvpn/desktop.conf
 
  
−
Your Linux system will automatically connect when computer restart using openvpn script/service:
+
==Step 5 - Verify/test the connectivity==
−
$ sudo systemctl start openvpn@client # <--- start client service
 
−
Step 5 - Verify/test the connectivity
 
  
 
Execute the following commands after connecting to OpenVPN server from your Linux desktop:
 
Execute the following commands after connecting to OpenVPN server from your Linux desktop:
−
$ ping 10.8.0.1 #Ping to the OpenVPN server gateway
 
−
$ ip route #Make sure routing setup working
 
−
$ dig TXT +short o-o.myaddr.l.google.com @ns1.google.com #Must return public IP address of OpenVPN server
 
−
A note about trouble shooting OpenVPN server and client issues
 
  
−
Check OpenVPN server for errors:
+
ping 10.8.0.1      # Ping to the OpenVPN server gateway
−
$ journalctl --identifier ovpn-server
+
ip route            # Make sure routing setup working
 +
dig TXT +short o-o.myaddr.l.google.com @ns1.google.com #Must return public IP address of OpenVPN server
  
−
OpenVPN server log files and error
+
Beberapa catatan troubleshooting OpenVPN & Client
−
Click to enlarge image
 
  
−
Is firewall rule setup correctly on your server? Use the cat command to see rules:
+
Cek OpenVPN server for errors:
−
  $ cat /etc/rc.local
+
 
 +
journalctl --identifier ovpn-server
 +
 
 +
Cek Filewall Rules
 +
 
 +
  cat /etc/rc.local
  
 
  #!/bin/sh -e
 
  #!/bin/sh -e
Line 89: Line 82:
 
  exit 0
 
  exit 0
  
−
Another option is to run iptables command and sysctl command commands to verify NAT rule setup on your server:
+
Alternatif lain, run iptables command & sysctl command untuk verifikasi NAT rule setup
−
  $ sudo iptables -t nat -L -n -v
+
 
−
  $ sysctl net.ipv4.ip_forward
+
  sudo iptables -t nat -L -n -v
 +
  sysctl net.ipv4.ip_forward
  
−
NAT Firewall OpenVPN Rules Verification
+
Insert rules ke /etc/rc.local (kalau belum di insert)
−
Insert the rules if not inserted from /etc/rc.local
+
−
  $ sudo sh /etc/rc.local
+
  sudo sh /etc/rc.local
−
  $ sudo sysctl -w net.ipv4.ip_forward=1
+
  sudo sysctl -w net.ipv4.ip_forward=1
  
 
Is OpenVPN server running and port is open? Use the ss command or netstat command and pidof command/ps command:
 
Is OpenVPN server running and port is open? Use the ss command or netstat command and pidof command/ps command:
 +
 
  $ netstat -tulpn | grep :1194 ## 1194 is the openvpn server port ##
 
  $ netstat -tulpn | grep :1194 ## 1194 is the openvpn server port ##
 
  $ ss -tulpn | grep :1194 ## 1194 is the openvpn server port ##
 
  $ ss -tulpn | grep :1194 ## 1194 is the openvpn server port ##
Line 117: Line 112:
  
 
If not connected it means either a Linux desktop firewall or your router is blocking access to server. Make sure both client and server using same protocol and port, e.g. UDP port 1194.
 
If not connected it means either a Linux desktop firewall or your router is blocking access to server. Make sure both client and server using same protocol and port, e.g. UDP port 1194.
 +
 
==Conclusion==
 
==Conclusion==
  

Revision as of 14:44, 30 March 2020

Sumber: https://www.cyberciti.biz/faq/ubuntu-18-04-lts-set-up-openvpn-server-in-5-minutes/


Step 1 – Update system

Run, 

sudo apt update
sudo apt upgrade

Step 2 – Cek IP address

Pakai perintah, 

ip a
ip a show eth0
ip a show enp0s3

Step 3 – Download & run openvpn-install.sh script

Download, 

sudo su
cd /usr/local/src/
wget https://git.io/vpn -O openvpn-install.sh
chmod +x openvpn-install.sh

Run, 

sudo ./openvpn-install.sh

Kita perlu menjawab beberapa pertanyaan. Selesai instalasi, contoh sertifikat client.ovpn akan di keluarkan.

Run OpenVPN, 

sudo systemctl stop openvpn@server    # <--- stop server
sudo systemctl start openvpn@server   # <--- start server
sudo systemctl restart openvpn@server # <--- restart server
sudo systemctl status openvpn@server  # <--- get server status

Step 4 – Connect an OpenVPN server using IOS/Android/Linux/Windows client

Copykan file sertifikat client.ovpn ke client, misalnya menggunakan perintah, 

scp vivek@104.20.187.5:~/client.ovpn .

Linux Desktop: OpenVPN client configuration

Install, 

sudo apt -y install openvpn
sudo cp client.ovpn /etc/openvpn/client.ovpn

Coba sambungan dari sisi client 

sudo openvpn --client --config /etc/openvpn/client.ovpn

Linux akan secara automatis tersambung ke computer dengan openvpn script 

sudo systemctl start openvpn@client # <--- start client service

Step 5 - Verify/test the connectivity

Execute the following commands after connecting to OpenVPN server from your Linux desktop: 

ping 10.8.0.1       # Ping to the OpenVPN server gateway
ip route            # Make sure routing setup working
dig TXT +short o-o.myaddr.l.google.com @ns1.google.com #Must return public IP address of OpenVPN server

Beberapa catatan troubleshooting OpenVPN & Client

Cek OpenVPN server for errors: 

journalctl --identifier ovpn-server

Cek Filewall Rules 

cat /etc/rc.local

#!/bin/sh -e
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to 172.26.6.74
exit 0

Alternatif lain, run iptables command & sysctl command untuk verifikasi NAT rule setup 

sudo iptables -t nat -L -n -v
sysctl net.ipv4.ip_forward

Insert rules ke /etc/rc.local (kalau belum di insert) 

sudo sh /etc/rc.local
sudo sysctl -w net.ipv4.ip_forward=1

Is OpenVPN server running and port is open? Use the ss command or netstat command and pidof command/ps command: 

$ netstat -tulpn | grep :1194 ## 1194 is the openvpn server port ##
$ ss -tulpn | grep :1194 ## 1194 is the openvpn server port ##
$ ps aux | grep openvpn ## is the openvpn server running? ##
$ ps -C openvpn ## is the openvpn server running? ##
$ pidof openvpn ## find the openvpn server PID ##

Verify that OpenVPN server runnign and Port is Open on ubuntu Linux If not running, restart the OpenVPN server: 

$ sudo systemctl restart openvpn@server

Look out for errors: 

$ sudo systemctl status openvpn@server

Can the Linux desktop client connect to the OpenVPN server machine? First you need to run a simple test to see if the OpenVPN server port (UDP 1194) accepts connections: 

$ nc -vu 104.20.187.5 1194

Connection to 104.20.187.5 1194 port [udp/openvpn] succeeded!

If not connected it means either a Linux desktop firewall or your router is blocking access to server. Make sure both client and server using same protocol and port, e.g. UDP port 1194.

Conclusion

Congratulations. You successfully set up an OpenVPN server on Ubuntu Linux 18.04 LTS server running in the cloud. See the OpenVPN website here and Ubuntu page here for additional information.

Referensi

Pranala Menarik

Retrieved from "https://onnocenter.or.id/wiki/index.php?title=OpenVPN:_Instalasi_di_Ubuntu_18.04&oldid=60635"