[Mono-aspnet-list] Mono + Nginx + Open BSD

Wed May 8 20:02:46 UTC 2013

Check your actual /tmp folder permissions.  I believe some other folder gets creates there that requires write access as well.

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________________________________
From: Gee<mailto:g.plumb at gmail.com>
Sent: ‎5/‎8/‎2013 12:49 PM
To: Daniel Lo Nigro<mailto:lists at dan.cx>
Cc: mono-aspnet-list at lists.ximian.com<mailto:mono-aspnet-list at lists.ximian.com>
Subject: Re: [Mono-aspnet-list] Mono + Nginx + Open BSD

Hi all

So this is what I did...

For sanity's sake:
chown root /tmp/fastcgi-mono-socket
chmod 777 /tmp/fastcgi-mono-socket

To see permissions on the socket
ls -la /tmp/fastcgi-mono-socket:

Output:
srwxrwxrwx  1  root  wheel  0 May  8 16:01 fastcgi-mono-socket

grep wheel /etc/group

To see contents of group 'wheel':
cat /etc/group | grep --regex "^xxx:.*" | awk -F: '{print $4}'

Output:
root

So I really have no idea what else I can do at this point.
Do anyone have any ideas?

Thanks!
G

On 8 May 2013 14:50, Daniel Lo Nigro <lists at dan.cx<mailto:lists at dan.cx>> wrote:
Hmm... I would have expected a "Permission denied" rather than a "No such file or directory" if it was a permissions issue. Maybe BSD handles this differently to Linux though.

On Wed, May 8, 2013 at 5:11 PM, Ovidiu D <ovidiudeac at gmail.com<mailto:ovidiudeac at gmail.com>> wrote:
I'm not a BSD user so I don't know for sure but apparently the unix sockets permissions behave differently compared to Linux . See this: http://stackoverflow.com/questions/5977556/how-can-i-change-the-permissions-of-a-linux-socket-file

Anyway, having both the client and the server of the socket running with the same user should help here.

On Wed, May 8, 2013 at 9:58 AM, Ovidiu D <ovidiudeac at gmail.com<mailto:ovidiudeac at gmail.com>> wrote:
Looking again at our upstart scripts I see that we start the fastcgi server using the same user as nginx. Can you do that?

If it doesn't work can you post the whole startup script for your fastcgi server?

On Wed, May 8, 2013 at 1:58 AM, Gee <g.plumb at gmail.com<mailto:g.plumb at gmail.com>> wrote:
Hi Ovidiu

I tried TCP earlier to little avail.

*However*

I tried it again anyway (just to say that I did it again) and I got a YSOD/Exception (which is a start!).  After tweaking Web.config and restarting nginx - my hello world actually printed 'hello world'.  It's almost sad how much joy this brought me!  :-)

Now I know TCP does actually work (although I am not sure why it does now), I can set about solving why the unix socket is behaving so strangely.  I suspect that you (and the others earlier in this thread) are indeed all correct about the permissions issue.

I have set about resolving it, but I can't see to get past it.

I have chmod '777' (for now) - to no avail.
I ran chmod a+rwx as well - to no avail.
I even tried a different path - sadly, to no avail!

I am sure I am missing something obvious, although I have no idea what it could be... :-(

Any advice would be hugely appreciated!

Thanks
G

On 7 May 2013 20:57, Ovidiu D <ovidiudeac at gmail.com<mailto:ovidiudeac at gmail.com>> wrote:
I'm pretty sure that you have a permission problem here. You should double check that both the users of the nginx and mono fastcgi server processes have rw access to that socket.

For debugging purposes you can also try to use a TCP socket instead of a unix socket and once your setup works you can move back to unix sockets.

On Tue, May 7, 2013 at 9:56 PM, Gee <g.plumb at gmail.com<mailto:g.plumb at gmail.com>> wrote:
Hi

I am having trouble getting Mono to work with nginx.  I installed my OS (OpenBSD 5.3) and set up ports.  I built mono, mono-xsp and nginx - all without incident.  All three appear to be working OK, but not in conjunction.

I am trying to run a *very* simple MVC3 app - it is literally a hello world controller (no fancy code whatsoever) - but I keep getting a 502 (Bad gateway).  In the log, I see the following:

[crit] 31764#0: *1 connect() to unix:/tmp/fastcgi.socket failed (2: No such file or directory) while connecting to upstream,

The frustrating thing here is that /tmp/fastcgi.socket does actually exist.  I tried 'touch' and making sure 'www' and 'wheel' have the appropriate permissions (which they do).  The result of 'ls -la /tmp/fastcgi.socket' revealed nothing awry.  I tried using a different path (such as '/home/socket' and '/home/fastcgi.socket'), but all to no avail.

Does anyone have any ideas/hints?  Could this be a bug in the port?

To try and save time, here is my config:

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    server {
        listen 80;
        access_log   /home/www/nginx.log;
        error_log    /home/www/errors.log;

        # root /home/www/test;
        # index index.html index.htm index.aspx default.aspx;

        location ^~ /Scripts/ { }
        location ^~ /Content/ { }

        location / {
            root /home/www/test;
            # fastcgi_index /Home/Index;

            fastcgi_pass   unix:/tmp/fastcgi.socket;
            # include        fastcgi_params;
            include /etc/nginx/fastcgi_params;
        }
    }
}

Thanks!
G

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