# IPv6 issues viewing any static or dynamic file

**URL:** <https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988>\
**Category:** NGINX\
**Created:** [May 15, 2011, 1:20pm UTC](https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988 "2011-05-15T13:20:41Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\
**Post date:** [May 15, 2011, 1:20pm UTC](https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988/1 "2011-05-15T13:20:41Z")

</div>

Hello,  
I am having issues with IPv6 being able to view any files static or  
dynamic. I keep getting the error  
curl -6 [http://ipv6.example.com/test.png](http://ipv6.example.com/test.png)

2011/05/14 16:18:36 [info] 6217#0: \*1 client timed out (110: Connection  
timed out) while sending response to client, client:  
xxxx:xxx:xxxx:xxxx:xxx:xxxx:xxxx:xxxx, server: [example.com](http://example.com), request:  
“GET /test.png HTTP/1.1”, host: “[example.com](http://example.com)”

but i can do HEAD requests and such and get a response.

curl -6 -I [ipv6.example.com](http://ipv6.example.com)  
HTTP/1.1 200 OK  
Server: nginx/1.0.2  
Date: Sun, 15 May 2011 08:44:31 GMT  
Content-Type: text/html  
Content-Length: 0  
Last-Modified: Thu, 24 Jan 2008 19:27:58 GMT  
Connection: keep-alive  
Keep-Alive: timeout=10  
Accept-Ranges: bytes

nginx -V  
nginx: nginx version: nginx/1.0.2  
nginx: TLS SNI support enabled  
nginx: configure arguments: --prefix=/usr --sbin-path=/usr/sbin/nginx  
–conf-path=/etc/nginx/nginx.conf  
–error-log-path=/var/log/nginx/error\_log --pid-path=/var/run/nginx.pid  
–lock-path=/var/lock/nginx.lock --user=nginx --group=nginx  
–with-cc-opt=-I/usr/include --with-ld-opt=-L/usr/lib  
–http-log-path=/var/log/nginx/access\_log  
–http-client-body-temp-path=/var/tmp/nginx/client  
–http-proxy-temp-path=/var/tmp/nginx/proxy  
–http-fastcgi-temp-path=/var/tmp/nginx/fastcgi  
–http-scgi-temp-path=/var/tmp/nginx/scgi  
–http-uwsgi-temp-path=/var/tmp/nginx/uwsgi --with-ipv6 --with-pcre  
–with-http\_gzip\_static\_module --with-http\_realip\_module  
–with-http\_ssl\_module --without-mail\_imap\_module  
–without-mail\_pop3\_module --without-mail\_smtp\_module

and nginx.conf

user nginx nginx;  
worker\_processes 2;  
worker\_rlimit\_nofile 8192;

error\_log /var/log/nginx/error\_log info;  
#error\_log /var/log/nginx/error\_log debug;  
events {  
worker\_connections 8192;

# worker\_connections 1024;

```
    use epoll;

```

}

http {  
include /etc/nginx/mime.types;

# include /etc/nginx/proxy.conf;

```
    include /etc/nginx/fastcgi_params;

    default_type application/octet-stream;

    log_format main
            '$remote_addr - $remote_user [$time_local] '
            '"$request" $status $bytes_sent '
            '"$http_referer" "$http_user_agent" '
            '"$gzip_ratio"';

    client_header_timeout 10;
    client_body_timeout 10;
    #needed for file uploads > 1m
    client_max_body_size 10m;
    send_timeout 10;

    connection_pool_size 256;
    client_header_buffer_size 1k;
    large_client_header_buffers 4 2k;
    request_pool_size 4k;

    gzip on;
    gzip_min_length 1100;
    gzip_buffers 16 8k;
    gzip_static on;
    gzip_types text/plain text/css application/x-javascript 

```

text/xml application/xml application/xml+rss text/javascript;

```
    output_buffers 1 32k;
    postpone_output 1460;

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;

    keepalive_timeout 10 10;

    ignore_invalid_headers on;

    index index.html index.php;
    server {
            listen [::]:80 default ipv6only=on;
            listen 80 default;
            server_name example.com www.example.com 

```

[ipv6.example.com](http://ipv6.example.com);

```
            access_log /var/log/nginx/texample.com.access_log 

```

main;  
error\_log /var/log/nginx/example.com.error\_log  
info;

```
            root /var/www/example.com/htdocs;
            autoindex on;

            location /blog/ {
                    if (!-e $request_filename) {
                            rewrite ^.+?(/.*\.php)$ /blog$1 

```

last;  
rewrite ^.+?(/wp-.\*) /blog$1  
last;  
rewrite ^  
/blog/index.php last;  
}  
}

```
            location ~ ^.+\.php {
                    include /etc/nginx/fastcgi_params;
                    fastcgi_param SCRIPT_FILENAME 

```

/var/www/example.com/htdocs$fastcgi\_script\_name;  
fastcgi\_pass 127.0.0.1:9000;  
fastcgi\_index index.php;  
}

```
            location ~* ^.+\.(jpg|jpeg|gif|png)$ {
                    access_log off;
                    expires 30d;
            }

            location ^~ /c/ {
                    return 403;
            }
            location ^~ /p/ {
                    return 403;
            }
    }
    include /etc/nginx/vhosts.d/*.conf;

```

}

i have turned firewall off to ensure that wasn’t an issue. I am not sure  
were else to look.

Here is also a debug log  
[http://pastie.org/private/dbzwwlkxaelmex47hvwnzq](http://pastie.org/private/dbzwwlkxaelmex47hvwnzq)

v/r,  
Rob

---

<div class="post-metadata">

**Author:** ![rsanheim](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/47e85d/32.png) [@rsanheim](https://www.ruby-forum.com/u/rsanheim)\
**Post date:** [May 15, 2011, 2:26pm UTC](https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988/2 "2011-05-15T14:26:49Z")

</div>

On Sun, May 15, 2011 at 01:20:06PM +0200, Rob S. wrote:

> Server: nginx/1.0.2  
> Date: Sun, 15 May 2011 08:44:31 GMT  
> Content-Type: text/html  
> Content-Length: 0  
> Last-Modified: Thu, 24 Jan 2008 19:27:58 GMT  
> Connection: keep-alive  
> Keep-Alive: timeout=10  
> Accept-Ranges: bytes

How do you connect via IPv6 ?  
It seems like large packets tunneling issue.  
Are you able to scp large file via IPv6 ?

–  
Igor S.

---

<div class="post-metadata">

**Author:** ![rsanheim](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/47e85d/32.png) [@rsanheim](https://www.ruby-forum.com/u/rsanheim)\
**Post date:** [May 15, 2011, 6:12pm UTC](https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988/3 "2011-05-15T18:12:22Z")

</div>

On May 15, 2011, at 2:26 PM, Igor S. wrote:

> How do you connect via IPv6 ?  
> It seems like large packets tunneling issue.  
> Are you able to scp large file via IPv6 ?

I am using a 6to4 HE tunnel on the client side and native IPv6 on the  
server side. (It’s hosted at Linode that recently enabled native IPv6)

You are right. I created just a test.txt file with just hello world in  
it and i can browse it just fine. I wonder what google is doing because  
i can browse [ipv6.google.com](http://ipv6.google.com) just fine and other test sights.

Just modified my local MTU to 1280 and it seems to be working now. Sorry  
for the noise.

v/r,  
Rob

---

<div class="post-metadata">

**Author:** ![rsanheim](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/47e85d/32.png) [@rsanheim](https://www.ruby-forum.com/u/rsanheim)\
**Post date:** [May 15, 2011, 6:23pm UTC](https://www.ruby-forum.com/t/ipv6-issues-viewing-any-static-or-dynamic-file/206988/4 "2011-05-15T18:23:30Z")

</div>

On Sun, May 15, 2011 at 06:10:53PM +0200, Rob S. wrote:

> You are right. I created just a test.txt file with just hello world in it and i  
> can browse it just fine. I wonder what google is doing because i can browse  
> [ipv6.google.com](http://ipv6.google.com) just fine and other test sights.  
> They might decrease MTU on their side to allow pass large response from  
> them  
> to clients.

> Just modified my local MTU to 1280 and it seems to be working now. Sorry for the  
> noise.

–  
Igor S.