[CPANEL-33877] Use transfert tool twice on a account with live option enable cause apache loop

[youp]

Hello,

Use transfert tool twice on a account with live option enable cause apache loop due to httpd.conf ProxyPass directive in the configuration ;(

is it possible to check this when we do that ?

Don't put the directive proxypass on the destination node when we do a transfert ...

Regards

 

[andrew.n]

So you used the transfer tools twice to migrate an account from one server to another server which probably overwrote the account but I don't really understand the issue here. Can you elaborate?

 

[youp]

the first time you transfert an account, the transfert tool with live option put an extra configuration in httpd.conf on the remote server like this :


<Location "/">
ProxyPass "http://NEW.SERVER.COM/"
ProxyPreserveHost on
</Location>

if I restart a transfert , this configuration is applied on the new server , and cause a loop on apache ...

->
AH00286: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting


Regards

 

[andrew.n]

Thanks for the clarification. Do you have root access to the server? You should make a manual cPanel backup and restore that on the destination server probably with Restricted Restore option enabled.

 

[youp]

probably , but it's something to check for the next release

 

[andrew.n]

Certainly..maybe @cPanelLauren has some further input here.

 

[cPanelLauren]

There is already a case for this I found, CPANEL-33877 Live Transfer feature can lead to infinite proxy loop resulting in Apache DoS - Multi Server Variant - this issue is fixed in v92 and there is a request to push the fix to v90. I'll update here when that has been completed.


Thanks!

 

[youp]

thanks

 

[domaincolony]

I have the same issue after moving data centre but even more annoying now the licence has expired on the old server, can we get a grace period whilst this issue is unresolved please

 

[cPanelLauren]

You would need to contact customer service for any requests such as this at [email protected]

 

[youp]

I have the same issue after moving data centre but even more annoying now the licence has expired on the old server, can we get a grace period whilst this issue is unresolved please

if you have the ssh access to your server , you can edit httpd.conf and delete the proxypass directive ...

 

[domaincolony]

Can we have an update and solution please...? File/Directory Restore is still creating ProxyPass entries in httpd.conf - yes I can manually comment these lines out but this is a nightmare on server transfers.

 

[VM Creativo]

Same here:

VirtualHost 1.2.3.4:8080 [1234:1234:0000:0000:1234:1234:1234:1234]:8080>
  ServerName client_domain.com
    ServerAlias ipv6.client_domain.com mail.client_domain.com www.client_domain.com
  <Location "/">
    ProxyPass "http://server.ourcompany.com/"
    ProxyPreserveHost on
  </Location>
  DocumentRoot /home/client_domain/public_html
  ServerAdmin [email protected]_domain.com
  UseCanonicalName Off

Is there any way to disable the further creation of ProxyPass?

I tried to comment on the httpd.conf file, but each time it is re-created it overwrites

 

[domaincolony]

As changes to httpd.conf are not persistant - on each rebuild, add/remove domain the file is rewritten and the ProxyPas statement added/reactivated - can we have a timeline for resolution in whm v90, please

 

[VM Creativo]

I have a temporary solution

Make a backup of the vhost creation template:

cp /var/cpanel/templates/apache2_4/vhost.default /var/cpanel/templates/apache2_4/vhost.default.bak

Edit the vhost creation template:

nano /var/cpanel/templates/apache2_4/vhost.default

Remove these lines

[% IF vhost.proxy_backend -%]
  <Location "/">
    ProxyPass "http://[% vhost.proxy_backend %]/"
    ProxyPreserveHost on
  </Location>
[% END -%]

 

[Bousaid Med]

facing the same probleme ,
can any one tell us the solution to resolve the problem of 502 and DOS of httpd and apatche.

 

[VM Creativo]

facing the same probleme ,
can any one tell us the solution to resolve the problem of 502 and DOS of httpd and apatche.

See my solution above, it has been working for 10 days without problems

 

[Bousaid Med]

See my solution above, it has been working for 10 days without problems

-------------------------------


Thanks for your reply ,

please correct me if i'm wrong :


the solution is Removing these lines from vhost.default :

[% IF vhost.proxy_backend -%]
<Location "/">
ProxyPass "http://[% vhost.proxy_backend %]/"
ProxyPreserveHost on
</Location>
[% END -%]


this solution would work , but i have to delette the current account with probleme and re copy it another time ???


or it would work without deleting the current account with probleme ??

thanks.

 

[drdoot]

Facing the same problem here.

Frankly, I find it frustrating, as I do dry runs on transfers before doing the 'real' transfer.
The proxy thing with automatic suspending the account AND modifying .htaccess is not a positive IMO.

Turn it off by default

 

[tmcstom]

It's probably better to use the WHM API1 command referenced in the links below to remove the proxy variables instead of manually editing vhost template/configs:

https://documentation.cpanel.net/display/DD/WHM+API+1+Functions+-+unset_all_service_proxy_backends
https://docs.cpanel.net/knowledge-base/general-systems-administration/service-proxying/

And for the mx routes (if present)
https://documentation.cpanel.net/display/DD/WHM+API+1+Functions+-+unset_manual_mx_redirects