iptables redirect ports to a different host and port + NAT Masquerade howto/solution

This is important if you need public access to internal IPs such as at your office and don't want to use a VPN just to SSH into different servers:

Below forwards the port "10001" to the IP 192.200.5.53 on port 22 (of course adjust it to your needs).

iptables -t nat -A PREROUTING -p tcp --dport 10001 -j DNAT --to-destination 192.200.5.53:22

Remember to enable MASQUERADE on your NAT IPs or they won't be able to talk to the outside world (make sure the range is correct).

This says that IPs between 192.200.5.2-192.200.5.254 are NAT'd (adjust to reflect the range of your network).

-A POSTROUTING -m iprange --src-range 192.200.5.2-192.200.5.254 -j MASQUERADE


Tags:

iptables, redirect, ports, nat, masquerade, howto, solutionthis, ips, vpn, ssh, servers, forwards, quot, ip, adjust, prerouting, tcp, dport, dnat, destination, enable, reflect, postrouting, iprange, src,

Latest Articles

  • Virtualbox Error Cannot register the hard disk because a hard disk with UUID already exists solution
  • kernel: [549267.368859] mate-terminal[7871]: segfault at 2000000101 ip 00007f5d0a9548f0 sp 00007fff7012c610 error 4 in libgobject-2.0.so.0.4800.2[7f5d0a920000+52000]
  • apcupsd how to setup and monitor APC UPS units
  • How To Password Reset, Recover, Bypass, Remove and Unlock on Windows 10,8,7,Vista,XP,NT,2000,2003,2008,2012,2016,2019 Administrative Login Programs
  • Nvidia Ubuntu Linux Screentearing Video with solution driver
  • ?? Question Marks for time, permissions and size of a file?
  • mdadm how to stop a check
  • access denied by acl file qemu-kvm: bridge helper failed
  • Linux NIC connecting at 100M instead of 1000M gigabit speeds? It could be overheating
  • "This kernel requires the following features not present on the CPU: cmov Unable to boot - please use a kernel appropriate for your CPU.
  • http://vault.centos.org/5.9/os/i386/repodata/filelists.xml.gz: [Errno -1] Metadata file does not match checksum solution
  • Linux Ubuntu Wifi Disabled Only Works When Laptop Plugged Into Wall AC Power
  • CentOS 6 impossible to compile a newer libguestfs
  • chroot
  • How To Get Started on Ubuntu with gpt-2 OpenAI Text Prediction
  • Remove cloud-init in your VM
  • QEMU-KVM KVM Command Line Practical Guide
  • Linux How To Change NIC Name to eth0 instead of enps33 or enp0s25
  • virt-resize: error: libguestfs error: could not create appliance through libvirt.
  • Asterisk Does Not Retry When Authentication Fails