forward request localhost:1234 to 172.217.174.206:443

0)
$ ip addr
```
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether b4:2e:99:ae:b1:90 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.89/24 brd 192.168.100.255 scope global dynamic noprefixroute eno1
       valid_lft 674949sec preferred_lft 674949sec
    inet6 fe80::dcfd:a026:7749:ac6b/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:55:09:34 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:55:09:34 brd ff:ff:ff:ff:ff:ff
5: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:50:70:9c:52 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:50ff:fe70:9c52/64 scope link 
       valid_lft forever preferred_lft forever
9: vethf470f7e@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether 06:61:7b:cb:3f:70 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::461:7bff:fecb:3f70/64 scope link 
       valid_lft forever preferred_lft forever
11: veth92e3a64@if10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether 5e:c4:86:1a:cb:e6 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet6 fe80::5cc4:86ff:fe1a:cbe6/64 scope link 
       valid_lft forever preferred_lft forever
```


1)
$ iptables -t nat -A PREROUTING -p tcp --dport 1234 \
    -i eno1 -j DNAT --to 172.217.174.206:443

2)
## (option) show rule:
## (option) sudo iptables -t nat -v -L PREROUTING -n --line-number
➜  .ssh iptables -t nat -v -L PREROUTING -n --line-number      
Chain PREROUTING (policy ACCEPT 7028 packets, 563K bytes)
num   pkts bytes target     prot opt in     out     source               destination         
1        0     0 DNAT       tcp  --  eno1   *       0.0.0.0/0            0.0.0.0/0            tcp dpt:1234 to:172.217.174.206:443


3)
$ iptables -A FORWARD -d 172.217.174.206 -j ACCEPT

4)
$ iptables -t nat -A POSTROUTING -d 172.217.174.206 -o eno1 -j MASQUERADE

image version https://ibb.co/nC0Kg7w