mnml's questions

I'm using Jetty-runner 8.1.14.v20131031 and I would like to know what's the easiest way to achieve session clustering between multiples running instances.

I have added a X-Accel-Expires header on my static contents as well as a Last-Modified header. I would like to know whats the correct setting to cache those elements without caching anything else.

This is what I have at the moment but it doesn't cache anything :

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

access_log  /var/log/nginx/access.log;

sendfile        on;
client_max_body_size 2000m; 
keepalive_timeout  65;
tcp_nodelay        on;

gzip  on;
gzip_disable "MSIE [1-6]\.(?!.*SV1)";

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;

ssl_certificate /etc/nginx/chain.pem; 
ssl_certificate_key /etc/nginx/key.key;

proxy_cache_path /var/lib/nginx/cache levels=1:2 keys_zone=cache:30m max_size=1G;
proxy_temp_path /var/lib/nginx/proxy 1 2;
proxy_cache_use_stale error timeout invalid_header http_502;

server {
    listen       80;
    server_name domain;

    location / {
        proxy_pass http://127.0.0.1:8080;
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_read_timeout 700;
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

I would like to know whats the best way to call a REST web service when a Linux server is shutting down.

I currently run a website behind a Varnish server, It contains a few browser conditions for Internet Explorer 6. Unfortunately Varnish is caching the first version it serves without taking into account the conditions. Is there any way I can configure it to have a different cache for IE6 users ?

Thanks

I would like to add 1500 URL redirections using .htaccess on an Apache server. Is it a bad idea? Will it decrease the performance significantly?

I would like to know if an error 504 Gateway timeout always come from the load balancer or it can also be originated from Apache and the PHP code it's running ?

Thanks

I would like to know if it's possible to have sftp access with rbash enabled on the users, if not Is there any alternative to rbash?

Thanks

I would like to know what's the right way to avoid caching "some pages" of a website using Varnish and cache all the others.

This is what I have tried to do with the vcl conf:

     sub vcl_fetch {
         #set beresp.ttl = 1d;
         if (!(req.url ~ "/page1withauth") ||
             !(req.url ~ "/page2withauth")) {
            unset beresp.http.set-cookie;
         }
         if (!beresp.cacheable) {
             return (pass);
         }
         if (beresp.http.Set-Cookie) {
             return (pass);
         }
         return (deliver);
}

Thanks

I have recently deployed a java application on a VPS but It keeps crashing because the JVM runs out of memory after a while. I never had this issue on other 'low memory' servers thanks to the swap but on this VPS, It's different: There is no swap and only 50% of the actual 512megs of ram "can be used" (they say 256mbs are garanteed). Is there any way I can limit the memory consumption ? I have tried to use the xms variables but It didn't help much. I have also tried to put swap into a file but It's not allowed apparently.

Thanks in advance

I would like to know if it's currently possible to import a virtualbox vm on the ec2 cloud, I have tried with a virtualbox vmdk but it did not succed. Apparently it is designed for VMware's vmdk files.

Is there a trick I could use to convert my instance and import it on amazon?

Thanks !

I would like to know if there is anyway I can display the most frequent SQL query on MySQL server in order to memcache it.

I would like to know if there is any way I can remove the gettext extension without re-compiling php?

Does anyone have ever tried rsync'ing sqlite database?

Is it possible to access the data while it gets syncronised?

I would like to know if it's possible to replicate or cluster a table between mssql and mysql.

That could be usefull during a migration process.

I have made a virtual host on a machine and reloaded apache, but I can't seems to be able to access it from another computer on the same network. (It does work when I set the ip of the server and in the host file of the other machine)

to make the virtualhost I have edited /etc/httpd/conf/httpd.conf and added:

<VirtualHost 192.168.0.1:80>
    DocumentRoot /home/sites/mysite
    ServerName mysite.test.corp
    ErrorLog logs/mysite.test.corp-error_log
    CustomLog logs/mysite.test.corp-access_log common
    <Directory /home/sites/mysite>
        AllowOverride All
    </Directory>
</VirtualHost>

I'm trying to setup a subversion repository without apache (my webserver is using Lighttpd) Is there anyway I can do that?

I would like to know if it's unsecure to leave the .svn folders accessible to anyone on a webserver

eg. : http://yoursite.com/.svn/

if not what's the best way to secure these?

I have been using the sendmail function in PHP with Exim 4 so far when I had to send my mailing lists, I would like to know if there is a clean solution for that.

I'm quite sure that Facebook isn't sending email notifications in foreach loops.

I have tried to send them one by one using a Bash script doing a loop, but it's slow, and it's using database ressources.

I found a few mailing list managers on the Internet, I think it would be the best way to trac emails like

• Phplist or
• OemPro which isn't free but seems good

How to do this with the Zend framework? (Ref: "What's the best approach to sending email to hundreds of recipients from a Zend Framework application?")

swiftmailer

A scammer is using my mail server to send his scams, is there any way I can block him?

I'm using Exim4 and Dovecot on a Debian Stable distrib.

Here is the mail delivery I'm receiving:

------ This is a copy of the message, including all the headers. ------

Return-path: <[email protected]>
Received: from [210.83.81.189] (helo=User)
        by server.hotconference.com with esmtpa (Exim 4.69)
        (envelope-from <[email protected]>)
        id 1Mh7A5-0008Lz-Vo; Fri, 28 Aug 2009 15:31:03 -0400
Reply-To: <[email protected]>
From: "Mr. Frank Bell"<[email protected]>
Subject: Western Union Payment Center®
Date: Fri, 28 Aug 2009 12:30:54 -0700
MIME-Version: 1.0
Content-Type: text/html;
        charset="Windows-1251"
Content-Transfer-Encoding: 7bit
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2600.0000
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000

<HTML><HEAD><TITLE></TITLE>
</HEAD>
<BODY bgcolor=#FFFFFF leftmargin=5 topin=5 rightmargin=5 bottommargin=5>
<FONT size=2 color=#000000 face="Arial">
<DIV>
&nbsp;</DIV>
<DIV>
Attn: Beneficiary,</DIV>
<DIV>
&nbsp;</DIV>
<DIV>
There is an issue with the WESTERN UNION MONEY TRANSFER NIGERIA in the amount of $500.000.00 USD directed in cash credited to file KTU/9023118308/03, at the owner of this email address. The INTERNATIONAL MONETARY FUND contacted us for your compensation a couple of hours ago due to your allocated security code.</DIV>
<DIV>
They said that they choose to send it to an email address instead of a name. We are unable to complete a transfer directed at an email address, so we require some more information in order to complete this transfer.</DIV>
<DIV>
&nbsp;</DIV>
<DIV>
FULL NAME:</DIV>
<DIV>
FULL CONTACT ADDRESS:</DIV>
<DIV>
MOBILE PHONE NUMBER:</DIV>
<DIV>
OCCUPATION:</DIV>
<DIV>
MARITAL STATUS AND AGE:</DIV>
<DIV>
&nbsp;</DIV>
<DIV>
In order to resolve this problem, please email via Western Union Solicitors Fund Verification Department: [email protected]</DIV>
<DIV>
As soon as this information is received, and you have complied with the requirements of our payment of the western union charges which is $420, payment will be made to your nominated bank account or at the counter directly from The Western Union Transferring Bank.</DIV>
<DIV>
Note: That this is directly from the Management of Western Union Money Transfer NIGERIA Head Office and our Motto is (To Serve You Better).</DIV>
<DIV>
Also note that you would be responsible for any payment that is needed for the transfer of your funds into your nominated bank account or at the counter directly from the Western Union Transferring Bank.</DIV>
<DIV>
THE MANAGEMENT OF WESTERN UNION MONEY TRANSFER, DISPATCHED THIS DAY.</DIV>
<DIV>
&nbsp;</DIV>
<DIV>
Call this number for verification +2348032263275</DIV>
<DIV>
Sincerely,</DIV>
<DIV>
Mr. Frank Bell.</DIV>
</FONT>
</BODY></HTML>

And this:

Return-Path: <>
Delivered-To: [email protected]
Received: (qmail 5451 invoked from network); 14 Sep 2009 13:46:51 -0000
Received: from mx24-g26.free.fr (HELO server.hotconference.com) (212.27.42.86)
  by mrelay6-g25.free.fr with SMTP; 14 Sep 2009 13:46:51 -0000
Received: from server.hotconference.com ([12.68.137.174])
    by mx2-g20.free.fr (MXproxy) for [email protected] ;
    Mon, 14 Sep 2009 15:46:51 +0200 (CEST)
X-ProXaD-SC: state=HAM score=10
Received: from mailnull by server.hotconference.com with local (Exim 4.69)
    id 1MnBtK-0001Qr-Le
    for [email protected]; Mon, 14 Sep 2009 09:46:50 -0400
Auto-Submitted: auto-replied
From: Mail Delivery System <[email protected]>
To: [email protected]
Subject: Warning: message 1Mh72E-0007Zk-0r delayed 384 hours
Message-Id: <[email protected]>
Date: Mon, 14 Sep 2009 09:46:50 -0400
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - server.hotconference.com
X-AntiAbuse: Original Domain - free.fr
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - 
X-Source: 
X-Source-Args: 
X-Source-Dir: 


This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 384 hours on the queue on server.hotconference.com.

The message identifier is:     1Mh72E-0007Zk-0r
The subject of the message is: Western Union Payment Center®
The date of the message is:    Fri, 28 Aug 2009 12:22:46 -0700

The addresses to which the message has not yet been delivered are:

  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]
  [email protected]

No action is required on your part. Delivery attempts will continue for
some time, and this warning may be repeated at intervals if the message
remains undelivered. Eventually the mail delivery software will give up,
and when that happens, the message will be returned to you.