Resolved Problems with additional IPv4 not working

[LorisMod]

Server operating system version

Ubuntu 20.04 x86_64

Plesk version and microupdate number

Plesk Obsidian 18.0.51.1

Hello,

I have a problem on a Plesk server with adding an additional IP. It shows me no errors after adding it, but it is unreachable and appears to be not configured in the system.


I tried to fix IP as suggested in the form for similar problems, but without fixing and getting error messages:
root@server08u:~# plesk bin ipmanage --repair 158.220.110.81
The IP address 158.220.110.81 was synchronized with the system.

root@server08u:~# plesk db "select status from IP_Addresses where ip_address = '158.220.110.81'";
+--------+
| status |
+--------+
| 0 |
+--------+

But IP does not appear in ifconfig:

root@server08u:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 176.57.150.95 netmask 255.255.255.255 broadcast 0.0.0.0
inet6 fe80::250:56ff:fe43:a61a prefixlen 64 scopeid 0x20<link>
ether 00:50:56:43:a6:1a txqueuelen 1000 (Ethernet)
RX packets 2055605138 bytes 324167394790 (324.1 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1457256270 bytes 5099807500228 (5.0 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 21808659056 bytes 20977489179929 (20.9 TB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 21808659056 bytes 20977489179929 (20.9 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

IP does not respond to Ping and is unreachable

If I add a domain with this additional IP the following error appears in the Plesk home page:
nginx: [emerg] bind() to 158.220.110.81:443 failed (99: Cannot assign requested address) nginx: configuration file /etc/nginx/nginx.conf test failed.

 

[LorisMod]

With Repair Kit it finds me the following error that it can't fix: IP address not found on interface(s): 158.220.110.81

 

[Kaspar]

Looks like you'll have to add the IP address manually network interface. I am not sure what steps are involved for Ubuntu. But I am sure that if you'll Google around you'll find some information on how to manually add an IP to the network interface in Ubuntu.

 

[LorisMod]

Looks like you'll have to add the IP address manually network interface. I am not sure what steps are involved for Ubuntu. But I am sure that if you'll Google around you'll find some information on how to manually add an IP to the network interface in Ubuntu.

Yes, solved by manually adding it to /etc/netplan/01-netcfg.yaml
And applying the change with: netplan apply

Adding it from Plesk is inserted into 10-plesk.yaml, but it is ignored by ubunto, on this VPS

 

[Kaspar]

Good to hear you've got it solved

 

[mostaqim]

I can't configure my IPv4 address on my Plesk server. When I add the IP it says: This IP address is not configured properly. Repair

I think this happens for the subnet mask. I made many attempts and followed the documents but failed. please help me to configure my IP address.