SID-02519: TWiki causes an error when accessed through VPN

Status:	Asked	TWiki version:	6.1.0	Perl version:	5.10.1
Category:	CategoryError	Server OS:	Centos 6.9	Last update:	1 year ago

When I am trying to access my TWiki server running fine on the internal network trough a VPN connection then TWiki throws the error below and does not produce any response:

[Sun Oct 20 09:44:22 2024] [error] [client 10.0.4.2] /bin/grep '-E' '-i' '-l' '-H' '--' '\\* *Set *SITEMAPLIST *\\= *on' '/var/TWiki-6.1.0/data/Main/WebPreferences.txt' -> /var/TWiki-6.1.0/data/Main/WebPreferences.txt, referer: http://192.168.4.25/

192.168.4.25 is the address of the server running the TWiki, other sites served by the same server (httpd) work fine, so do other connections (samba, ssh,), all through the VPN.

When accessed from inside the local net, TWiki is working fine.

It used to work before, but I had no need to use a VPN connection into the local net for a while so cannot tell at what point it started failing.

I don't know if the error above causes TWiki to reply at all but the apache error log is the only log file that receives an entry when I try the access.

Any recommendations on what/where to check are appreciated. -Steffen

-- Steffen Loeffler - 2024-10-20

Discussion and Answer

This is very odd, I have never seen this case. The grep you see is the search used to generate the SiteMap. I have no idea why this would fail if your TWiki site is accessed via VPN, but not if accessed directly.

-- Peter Thoeny - 2024-10-21

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