Databases
StackOverflow2013
Postsdbo
POAny way to replace a DNS Server address in my /etc/resolv.conf using python in Ubuntu 12.04?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAny way to replace a DNS Server address in my /etc/resolv.conf using python in Ubuntu 12.04?
    primarykey
    data
    text
    <p>What is the best approach for developing a program in python that can replace an old DNS Server address for a new one in Ubuntu 12.04?</p> <p>UPDATE: Basically what I need is a way to update my resolv.conf file content so that I can replace the nameservers configured in there.</p> <p>So for example I have in my resolv.conf:</p> <pre><code> nameserver 10.0.0.1 nameserver 10.0.0.2 </code></pre> <p>And I need to somehow modify to have the values:</p> <pre><code> nameserver 10.0.0.3 nameserver 10.0.0.4 </code></pre> <p>I need to make this using python(or any scripting language or even by command line), because I need to do this in a user-friendly window that must run in a kiosk-mode Xubuntu.</p> <p>**NOTE:</p> <p>So far I have tried finding an ubuntu command that can achieve this, but I haven't found one.</p> <p>I have also tried modifying /etc/resolv.conf but Python has no ability to modify a file, so I need to delete the file and create the file with the new content, however I have no permission to do this (already tried chmod 777 and chattr -a but they didn't work)</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRicardo Mogg
    1. USRicardo Mogg
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COIt's not clear what you're trying to do here. You mention `resolv.conf`, which is for configuring your resolver, but doesn't typically have anything to do with "dns entries". There are a variety of DNS servers out there, several of which support dynamic updates. What is your server? Python can of course modify files; there are lots of examples out there demonstrating basic file i/o. If your server supports DNS updates via DDNS, you can use the `nsupdate` command.
      singulars
      1. POAny way to replace a DNS Server address in my /etc/resolv.conf using python in Ubuntu 12.04?
      1. USlarsks
    2. COSorry, that is what I meant, I want to modify my resolver @larsks . I will update my question so that it is clearer thank you. Can you tell me any way to modify a file without having to delete the original and replacing it with one with the same name please? I am not using a server, It is just a laptop in kiosk mode running an app, and I want this app to modify that file.
      singulars
      1. POAny way to replace a DNS Server address in my /etc/resolv.conf using python in Ubuntu 12.04?
      1. USRicardo Mogg
    3. COI'm not clear on something: do you actually have permission to modify this file? Because if you don't, you're pretty much stuck. Typically, only the `root` user can modify this file. Also, if you could update your question to show exactly what you want do do (e.g., initial state and desired end state) we can probably be more helpful.
      singulars
      1. POAny way to replace a DNS Server address in my /etc/resolv.conf using python in Ubuntu 12.04?
      1. USlarsks
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload