Setting Up Zend Optimizer Tutorial Published: Oct 02, 2004
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    3/5

For those of you who check your nameservers and other DNS related issues using the popular site dnsreport you're probbaly seeing Fail Open DNS Servers. We'll show you have to fixed named to close open dns servers.

Close Open DNS Servers

For those of you who check your nameservers and other DNS related issues using the popular site dnsreport you're probbaly seeing Fail Open DNS Servers. We'll show you have to fixed named to close open dns servers.

How do I check my system?
Go to www.dnsreport.com and enter your domain name, eg webhostgear.com

You’re safe if you see:
PASS Open DNS servers

You need to follow this tutorial if you see:
FAIL Open DNS servers

Closing Open DNS Servers Tutorial

1) Login to your server and su to root.

2) Edit the /etc/named.conf file such as:# vi /etc/named.conf

Look for:

key "rndckey" {
};

After this add the following, replacing mainIP and secondaryIP with your systems nameservers.

acl "trusted" {
mainIP;secondaryIP;127.0.0.1;
};

3) After that’s done you want to add the section that says only the trusted is allowed for certain functions. Check your options area and make sure you add the following:

allow-recursion { trusted; };
allow-notify { trusted; };
allow-transfer { trusted; };

So the final result looks something like:

options {
        directory "/var/named";
        allow-recursion { trusted; };
        allow-notify { trusted; };
        allow-transfer { trusted; };
        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        /*
         * If there is a firewall between you and nameservers you want
         * to talk to, you might need to uncomment the query-source
         * directive below.  Previous versions of BIND always asked
         * questions using port 53, but BIND 8.1 uses an unprivileged
         * port by default.
         */
         // query-source address * port 53;
};

4) Save the changes and restart the named service: service named restart

5) Recheck your site at dnsreport.com, you should be good!

Cheers

Steve

  • Rating

    3/5

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Comments (18)

  • Gravatar - Danny Medina
    Danny Medina 17:34, April 24, 2005
    Excellent Zend setup tutorial. It worked beautiful. Thanks :)
  • Gravatar - Alberto Marlboro
    Alberto Marlboro 01:31, June 1, 2005
    Good Ideia of Zend.(?!?!@)<br />
    <br />
    Gives Zend Optimizer for FREE...(ohh) and CHARGES you 960 U$ for the encoder.<br />
    <br />
    Let me know if Im wrong.
  • Gravatar - Petter Rogstad
    Petter Rogstad 15:45, September 9, 2005
    When I try to run install.sh (from the browser?) - it can not be found.<br />
    <br />
    An other question - can you uncompress after you have uploaded the file?<br />
    <br />
  • Gravatar - John barnes
    John barnes 07:26, November 16, 2005
    I am trying to get my OS Commerce powered system listed on the internet. I am not tech savy. Will the zend optimizer allow me to do that particular procedure?
  • Gravatar - Worked
    Worked 03:35, February 14, 2006
    Awesome guide, worked flawlessly
  • Gravatar - Sib
    Sib 18:08, May 25, 2006
    This is the best tutorial I have seen until now. Very hard to find this especialy for noobs like me. But still i'm looking for answers.<br />
    My serever is running whit plesk 7.5 and not cpanel;<br />
    my OS is FedoraCore 2 - linux 2.6.5-1.358; <br />
    Do i upload in binary or acsii mode;<br />
    When you talk about uncompress.. install.... is it still via ftp or is it SSH that I recently discovered; <br />
    in wich folder schould i install....<br />
    <br />
    Well in case of reply thank you for you'r time?<br />
    Sib.
  • Gravatar - Ray Bridges
    Ray Bridges 18:13, May 25, 2006
    Great Tutorial. I'm getting pretty good with the CL thanks to online Tutorials like this. Pretty soon I'll have some real skills.
  • Gravatar - sib
    sib 18:35, May 25, 2006
    This is the best tutorial I have seen until now. Very hard to find this especialy for noobs like me. But still i'm looking for answers.<br />
    My serever is running whit plesk 7.5 and not cpanel;<br />
    my OS is FedoraCore 2 - linux 2.6.5-1.358; <br />
    Do i upload in binary or acsii mode;<br />
    When you talk about uncompress.. install.... is it still via ftp or is it SSH that I recently discovered; <br />
    in wich folder schould i install....<br />
    <br />
    Well in case of reply thank you for you'r time?<br />
    Sib.
  • Gravatar - insight
    insight 14:34, July 12, 2006
    This is really easy, just log into your Linux server as root and type this in the comand line<br />
    <br />
    /scripts/installzendopt<br />
    <br />
    and now just follow the prompts !
  • Gravatar - user
    user 22:09, December 11, 2006
    dont work.
  • Gravatar - Ash
    Ash 17:48, March 19, 2007
    @insight : that only works if you have Cpanel/WHM installed on your server.
  • Gravatar - Gaurav Mudgil
    Gaurav Mudgil 09:56, April 17, 2007
    Hi i followed your tutorial to install the zend optamizer .But when it ask me to restart the web server i press yes and after some time it gives me the msg "Installation failed to restart please restart it manually"<br />
    <br />
    then i restart my web server.<br />
    <br />
    but when i type php -v it gives the following message<br />
    <br />
    PHP Warning: Unknown(): Unable to load dynamic library '/usr/lib/php4/php4_cybersource.so' - libstdc++.so.4: cannot open shared object file: No such file or directory in Unknown on line 0<br />
    PHP 4.3.10 (cgi) (built: Dec 21 2004 10:27:48)<br />
    Copyright 1997-2004 The PHP Group<br />
    Zend Engine v1.3.0, Copyright 1998-2004 Zend Technologies<br />
    with Zend Extension Manager v1.2.0, Copyright 2003-2007, by Zend Technologies<br />
    with Zend Optimizer v3.2.6, Copyright 1998-2007, by Zend Technologies<br />
    <br />
    After that when i go to install my hotel reservation system and open it's index.php it gives the parse error of unexpected T_STRING.<br />
    <br />
    So plz help me out to solve this problem.<br />
    <br />
    With Regards<br />
    Gaurav Mudgil<br />
    <br />
  • Gravatar - khurram
    khurram 18:21, June 24, 2008
    Excellent tutorial......and overall outstanding website with greatly n nicely explained tutorials.......keep it up...<br />
    three cheers for webhostinggear.com
  • Gravatar - arunsv
    arunsv 06:30, October 24, 2008
    Gr8..nice work..excllent tutorials...<br />
    <br />
    Cheers...
  • Gravatar - Charles
    Charles 04:41, December 11, 2008
    Dear Sir,<br />
    <br />
    I am a new user of Dedicated Server, Please help me to install Zend Optimizer, thanks!<br />
    <br />
    1. My system: Fedora Core 6.0<br />
    I should download which Zend Optimizer?<br />
    <br />
    2. How to install<br />
    I should Unzip and upload Zend Optimized to server and which folder?<br />
    <br />
    3. What's my next step?<br />
    <br />
    Regards!<br />
    <br />
    Charles<br />
  • Gravatar - Abhijit
    Abhijit 11:18, September 18, 2009
    Dear Sir i followed your steps but it didnt happen..<br />
    <br />
    I use php4 on godaddy hosting....<br />
    <br />
    i never had an ./install.sh file this is what i get : -<br />
    <br />
    [letsgetjobs@p3nlh192 ~]$ tar xvfz ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/md5<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/Inventory.xml<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/EULA-ZendOptimizer<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/README-ZendOptimizer<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/LICENSE<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_3_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_3_x_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_1_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_1_x_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_2_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_2_x_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_0_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_0_x_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_4_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_4_x_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/poweredbyoptimizer.gif<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_2_0_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/4_2_0_comp/ZendOptimizer.so<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_2_x_comp/<br />
    ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_2_x_comp/ZendOptimizer.so<br />
    [letsgetjobs@p3nlh192 ~]$ cd ZendOptimizer-3.3.9-linux-glibc23-i386<br />
    [letsgetjobs@p3nlh192 ZendOptimizer-3.3.9-linux-glibc23-i386]$ ls -1<br />
    EULA-ZendOptimizer<br />
    Inventory.xml<br />
    LICENSE<br />
    README-ZendOptimizer<br />
    data<br />
    md5<br />
    [letsgetjobs@p3nlh192 ZendOptimizer-3.3.9-linux-glibc23-i386]$<br />
    <br />
    but there is no install.sh file .....<br />
    <br />
    Please help
  • Gravatar - baggins
    baggins 23:05, January 4, 2010
    I have the web program trying to install, it says it is encoded with zend encoder and needs zend optimizer to run the install.<br />
    The server I am going to have the website on is an MTA one, and a windows server using PLESK not C. I down loaded the optimizer (the LINUX and windows), uploaded the windows one to the server and trying to install it there, but it wont install or even go to the install wizard. <br />
    How do you get this program to install on the server, it will go into the install wizard on my windows computer but not on the server.
  • Gravatar - Linux
    Linux 10:51, November 15, 2010
    I can't find install.sh file when i unzip ZendOptimizer packet :(

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