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Consult or modify PTR record

A PTR record allows reverse resolution, i.e. converting an IP to a host name, unlike the A record which converts from domain to IP.

It is usual that to avoid fraud and spam, mail servers check that the IP that sends the mail has a PTR record.

By default, in SWHosting the PTR record corresponds to the name of the contracted Cloud, for example: ce2022012410001.dnssw.net

SWPanel allows you to consult and modify the PTR record. To do it, access the Dashboard of the Cloud server for which you want to modify the PTR record. To do this, click Active Services Tree (left menu) and click on the corresponding service (SWHosting Manuals) or you can also locate the server in the general SWPanel search engine:

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In the SERVICE IDENTIFICATION box, click on the icon to the right of your IP.

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Then go to ... (right side) > Modify the PTR record of this IP:

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Enter the new PTR name and click Save and Change:

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Check PTR record

If SWPanel allows you to check the PTR record of your contracted IP, you can also check the PTR record of any IP.

To do this, you can use tools included in your operating system or the following online service:

https://mxtoolbox.com/ReverseLookup.aspx

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Windows

  • Access the terminal (Command Prompt).

  • Enter the following command:

nslookup <IP> Example: nslookup ``.

  • You will get a result similar to the following:
Server: UnKnown
Address: 192.168.2.36

Name: server.swmanuales.com
Address: 81.25.125.146

The "Name" field is the result of the reverse resolution.

Linux

  • Access the terminal.

  • Enter the following command:

dig -x <IP> Example: dig -x 81.25.125.146.

  • You will get a result similar to the following:
; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>>> -x 81.25.125.146
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17329.
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;115.112.25.81.in-addr.arpa.    IN PTR

;; ANSWER SECTION:
115.112.25.81.in-addr.arpa. 7199 IN PTR server.swmanuales.com.

;; Query time: 249 msec
;; SERVER: 192.168.2.36#53(192.168.2.36)
;; WHEN: Thu Apr 11 16:56:58 2019
;; MSG SIZE rcvd: 71

In the "ANSWER SECTION" section, the result of the query appears: "server.swmanuales.com."

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More than 2000 m² of own facilities and Data Centers in Spain
Your privacy is important for us
We use our own cookies for the proper functioning of the site. In addition, third-party cookies are used for analytical purposes only. This information is not associated with any person so that personal identifying data is not stored, but is only information that is collected to identify the session, with the aim of facilitating the analysis of the website. You can change your preferences at any time by entering this website again. For more information about our cookie policy you can visit our Cookies. You can press the "Accept and close" button to give us your consent or you can access more detailed information and manage cookies.