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How to change the IP address in Plesk for Linux

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Aleksey Khikhich
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Plesk for Linux kb: how-to

Applicable to:

  • Plesk for Linux

Question

A new network interface with a new IP address has been assigned to a server, or an IP address has been updated on an existing network interface (for example, via ifconfig utility).

How to switch all subscriptions to a different IP address on a Plesk for Linux server?

Answer

For Windows, please refer to the following article. 

Note: The new IP should not be added under Plesk > Tools & Settings > IP Addresses before applying the instructions below. Remove it if it's already added.

  1. Connect to the server via SSH.

    Note: If direct SSH access to the server is not possible, contact a server administrator for further assistance.

  2. Generate a mapping file with current Plesk IP addresses by running the following command:

    # plesk bin ipmanage --remap /root/ip_map_file_name

  3. Open the file /root/ip_map_file_name for editing, for example, using vi text editor. To switch all subscriptions from the IP address 203.0.113.2 to 203.0.113.3 edit the file as below:

    Before:

    CONFIG_TEXT: venet0 203.0.113.2 255.255.255.255 -> venet0 203.0.113.2 255.255.255.255

    After:

    CONFIG_TEXT: venet0 203.0.113.2 255.255.255.255 -> venet0 203.0.113.3 255.255.255.255

  4. Reconfigure Plesk and its services by running the same command again:

    # plesk bin ipmanage --remap /root/ip_map_file_name

This operation was previously performed with the plesk bin reconfigurator tool, but the following message is now displayed on up-to-date Plesk versions:

# plesk bin reconfigurator /root/ip_map_file_name
`plesk bin ipmanage` should be used instead of this utility

Leaving the old instructions just in case:

  1. Generate a mapping file with current Plesk IP addresses by running the command:

    # plesk bin reconfigurator /root/ip_map_file_name

  2. Open the file /root/ip_map_file_name for editing, for example, using vi text editor. To switch all subscriptions from the IP address 203.0.113.2 to 203.0.113.3 edit the file as below:

    Before:

    CONFIG_TEXT: venet0 203.0.113.2 255.255.255.255 -> venet0 203.0.113.2 255.255.255.255

    After:

    CONFIG_TEXT: venet0 203.0.113.2 255.255.255.255 -> venet0 203.0.113.3 255.255.255.255

  3. Reconfigure Plesk and its services by running the command again:

    # plesk bin reconfigurator /root/ip_map_file_name

Note: Network interfaces are modified in runtime and config (e.g. if the IP address is to be changed to 203.0.113.2/32, while the interface has 203.0.113.2/24, or the main interface itself is to be changed) during the execution of the plesk bin ipmanage --remap utility. If the old IP address(es) are not needed anymore, remove them from Tools & Settings > IP Addresses and after that from the network interface manually. Vote for IP replacement on the interface on UserVoice.

Comments

14 comments

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  • Avatar
    Christopher Danks

    can you add a link to the windows version of this doc?

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  • Avatar
    Ivan Postnikov

    Hello Christopher Danks

    For Windows, there's a separate article. 

    Here's the corresponding documentation.

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  • Avatar
    Salvador Salas Prieto

    Thanks for the document, it works fine over Debian. But I have one question, when we execute the IP change:

     

    And check /etc/network/interfaces

    I can see:

    iface ens32:1 inet static
    address x.x.x.x
    netmask x.x.x.x
    auto ens32:1

     

    It is not necessary to add the gateway, network and broadcast?

     

    Thanks in advance

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  • Avatar
    Ivan Postnikov

    Hello Salvador Salas Prieto

    I've compared it with a similar network subinterface on a test server. Looks like it's expected.

    Also, let me note that Plesk reconfiguration doesn't change these settings by design. Feel free to make adjustments if necessary. 

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  • Avatar
    Salvador Salas Prieto (Edited )

    Thanks a lot. Can anyone explain who can we delete the old ip once the ip is changed? I have debian server and after a reboot the old IP comes again. And this is a very big problem as the domains start to send mail from that IP, SPF records are wrong and mail is returned.

     

    So it will be a big help for me if somebody can tell me how to delete the old IP permanently from the server to use only the new one.

     

    I delete the old IP:

    ip addr del x.x.x.x/24 dev ens192

     

    But after reboot the IP comes again:

     

    2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:ee:e5:7c brd ff:ff:ff:ff:ff:ff
    inet x.x.x.x/24 brd x.x.x.255 scope global ens192
       valid_lft forever preferred_lft forever
    inet y.y.y.y/26 scope global ens192:1

    Where x.x.x.x is the old IP and y.y.y.y is the new one

    Thank you in advance

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  • Avatar
    Ivan Postnikov

    Hello Salvador Salas Prieto

    Most probably you have a virtual server and this address is managed from the outside, Consider contacting server provider.

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  • Avatar
    Salvador Salas Prieto (Edited )

    Hi Ivan,

    That is not the problem. If you **only** follow the KB article to change the IP for Plesk on a Debian box (and in other linux distros too I think), next time you reboot the server the old IP will come to the server.

    Also with the KB you don´t change the network, the broadcast and the gateway (if they are different), which will be critical in the server.

    So the Kb works to change the IP of plesk but if you don´t set the server correctly, you will have a big problem once the server is rebooted if the old IP still works.

    Best regards

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  • Avatar
    Gary Gopinathan

    Hello,

    I have 2 IPs in the plesk and would like to change the current main IP to swap to the other IP as the main IP.

    Both the IPs are already in the system.

    How do i delete the current second IP, then go change the current main ip to a new ip?

    Thanks,

    Gary

     

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  • Avatar
    Ivan Postnikov

    Hello Salvador Salas Prieto

    Yes, you're right, indeed some attention to the server's network configuration is still required.

    The aim of this utility is to set up Plesk to work with the new server configuration.

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  • Avatar
    Nelson Leiva

    Hello Gary Gopinathan,

    You can follow this guide https://support.plesk.com/hc/en-us/articles/115002822565. Here is the documentation as well

    https://docs.plesk.com/en-US/onyx/advanced-administration-guide-linux/system-maintenance/changing-ip-addresses.68622/

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  • Avatar
    Pega Olymp

    Hello,

    I see this error:

    [root@mail ~]# plesk bin ipmanage --remap /root/ip_map_file_name
    Unknown command: --remap

    exit status 1
    [root@mail ~]#

     

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  • Avatar
    Pega Olymp (Edited )

    Hello again,

    In one article this command is recommended:

    plesk bin ipmanage --remap /root/ip_map_file_name

    In another article, this one:

    ./reconfigurator <ip_map_file_name>

    And except network interfeaces, will postfix, qmail, bind, opendns ip configurations be changed manually after plesk ip replace command?

    Which one should I use for colocation change (change all ip range of server)?

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  • Avatar
    Pascal Devif (Edited )

    Despite i upgraded ip i still have old one in message at top of login form :

    To avoid SSL warnings during Plesk login, use https://myserverhost.OLD-IP.plesk.page:8443
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  • Avatar
    Pascal Devif (Edited )

    Ok, in fact i just had to update Hostname in Server settings !

    Hmmm .. but it don't change this message  ! :p

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