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  • How do you cache web pages with a personalized header using caching reverse proxy such as Squid, Var

    - by Continuation
    Pretty much every page of my website is dynamically generated. However they don't change that frequently (kinda similar to a forum page). So I'd like to cache them using a caching reverse proxy such as Squid, varnish or Nginx. The problem is that for my logged-in users, each of them will see a personalized header saying "Welcome John Doe. Logout" on the upper right corner of the page (just like serverfault). While users who aren't logged in will see a header that says "Login" instead. So basically even though every user will see the same page in general, they all slightly different version due to that personalized header. Is there any way so that I can cache the "main" part of the page and serve it from cache while generate the personalized header dynamically for each individual user? This must be a very common problem. How is it solved in general?

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  • What do I need for SSL?

    - by Ency
    Hi guys, just a quick question, I'm kind of confused. I've had set-up my own certification authority and I can create requests and signed them. But, I'm not sure, what I need to give to Apache, currently I've got: CA Private key CA Certificate Website Private key Website Certificate Website Certificate Request (I think I do not need it, but just to be clear) Until today I was using snakeoil certificate, but I've decided to have more SSL services, than CA looks as good solution, so my Apache was configured well, but now I am not sure what I shall provide to apache in following rules: SSLCertificateKeyFile /path/to/Website Private Key SSLCertificateFile /path/to/CA Certificate But than I got [Mon Dec 27 12:09:33 2010] [warn] RSA server certificate CommonName (CN) `EServer' does NOT match server name!? [Mon Dec 27 12:09:33 2010] [error] Unable to configure RSA server private key [Mon Dec 27 12:09:33 2010] [error] SSL Library Error: 185073780 error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch Something tells me than the warning is quite weird, because "EServer" is a common name of CA, so I think I shall not use CA Certificate in SSLCertificateFile, shall I? Do I need to create Certificate from Website private key or something else?

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  • What is the purpose of Templates in iWork Pages

    - by AntonAL
    As we launch Pages 09, it prompts us to choose the item from "Text processing" and "Templates". What is the purpose of "Templates" ? Actually, i expect from template the definition of document styles and common layout. Also, i expect to create the normal document from Template. But, i didn't noticed all of that, while working with iWork Pages 09. All, what i can do - is just to create the template ... and what next to do with it ? I don't understand the logical continuation of the workflow, means by Pages, when we have to deal with templates ...

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  • New Seagate GoFlex external hard drive reporting temperature 50C and higher--defective or normal?

    - by rob
    I have a brand-new Seagate GoFlex hard drive, and my SMART diagnostics program (CrystalDiskInfo) is warnings me that the drive is running too hot. The lowest reported temperature I've seen it is 48C, and the highest so far is 56C (all of last week, it was at 50C). According to several sources I've found online, including a Google study, hard disks operating higher than 40C have shorter lifespans. The temperature in the room is usually about 23C (74F), and orienting the drive vertically vs. horizontally doesn't seem to affect the operating temperature. Does anyone else have a GoFlex external desktop drive that runs at 40C or cooler? Is my drive just defective, or is this high temperature common for these drives?

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  • Create a CDROM Bootdisk to update BIOS

    - by osij2is
    So, I have a Tyan Opteron board with a very old BIOS version. I realize Opteron's aren't exactly common like Athlons, Phenoms, Intel CPUs, etc. but my question revolves around updating the BIOS, however I don't have a floppy drive and there's no option to boot off of a USB key. Tyan has incomplete instructions on their website (link) on how to flash the BIOS via USB. So my second tactic has been to create a Windows 98 boot-able CDROM with the flash utilities on it. It's been years since I've made one but after going to sites like bootdisk.com and such I haven't had any success. Can anyone tell me step-by-step how to make a boot-able Windows 98 CDROM? I can't believe I'm having such a hard time doing this but I've failed on four different attempts and I must be doing something wrong or I'm not accounting for something.

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  • Exchange enrypted messages with a single recipient

    - by Andy
    I need to exchange encrypted messages with another party. These would be in the form of email like communication (not instant chat). The solution needs to be portable (USB stick). I've tried "Portable Thunderbird/Enigmail/Gnupg/Hotmail account" but it's just impossible to setup portable, countless meaningless error messages. Anyway, I would prefer something more straightforward. Notes: We won't know each others IP addresses. Our computers will often be switched off. Encryption would ideally be using a common password. Is there a solution to this?

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  • How to enabled pdo mysql in Centos 5.8

    - by nacho3d
    I have a VPS with Centos 5.8 In phpinfo displays: './configure' '--disable-fileinfo' '--disable-pdo' '--enable-bcmath' '--enable-calendar' '--enable-ftp' '--enable-libxml' '--enable-magic-quotes' '--enable-sockets' '--prefix=/usr/local' '--with-apxs2=/usr/local/apache/bin/apxs' '--with-curl=/opt/curlssl/' '--with-imap=/opt/php_with_imap_client/' '--with-imap-ssl=/usr' '--with-kerberos' '--with-libdir=lib64' '--with-libxml-dir=/opt/xml2/' '--with-mysql=/usr' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-openssl=/usr' '--with-openssl-dir=/usr' '--with-pcre-regex=/opt/pcre' '--with-pic' '--with-zlib' '--with-zlib-dir=/usr' I've tried this: http://www.host1free.com/forum/vps-technical-support/7248-tutoria-centos-apache-webserver-mysql-php-eaccelerator-apc.html And aparently it installed php-pdo # rpm -qa |grep php php-5.3.13-1.el5.remi php-xml-5.3.13-1.el5.remi php-common-5.3.13-1.el5.remi php-cli-5.3.13-1.el5.remi php-pdo-5.3.13-1.el5.remi php-xmlrpc-5.3.13-1.el5.remi php-mcrypt-5.3.13-1.el5.remi But I've restarted apache and it still says in my phpinfo: '--disable-pdo' Should I rebuild php? Do I need to do some other step?

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  • Xpath automatization software

    - by holms
    Too sad this topic was closed. But I'm kind of a having the same question. I want to construct xpathes, for common html block which appears on page. For example: you can give two URLs to that software, which will contain SAME html blocks (divs) , but having different content in it. by giving 2 stackoverflow.com url's, software could detect that same div#id is being used once again, and just give XPATH'es of those html blocks like for example. Of course I can find xpath'es my self, as far as I remember, firebug makes it easy,shows xpath of every html block, but this is kind of hard procedure if you want to get xpath'es for LOTS of html elements. so that's why I want this kind of software to help in this routine.

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  • Munin does not show Apache/mySQL stats in web view

    - by Chris
    I'm facing a very strange Problem. I just set up Munin on a fresh Ubuntu slice with a common LAMP Stack. Everything works great, except that Munin does just not show the Apache/mySQL stats in the web view. Everything else in the web view works great, Apache works, mySQL works. I even tried calling the plugins via console: sudo munin-run apache_accesses And it works fine. AFAIK Munin log files are not telling me any problems.. My only hint: when I run munin-run without sudo it gives me a "Permission denied" - could this be the problem?

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  • Can't install php5-apc from dotdeb source in Debian 6

    - by YNT
    I can't install php5-apc: ~# apt-get install php5-apc Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: php5-apc : Depends: php5-common (= 5.3.19-1~dotdeb.0) but 5.3.8-2 is to be installed E: Broken packages Have fresh Debian 6 and deb http://packages.dotdeb.org squeeze all deb-src http://packages.dotdeb.org squeeze all in source.list. P. S. I'm not very experienced—just trying to set up a server by the tutorial.

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  • Strategy to allow emergency access to colocation crew

    - by itsadok
    I'm setting up a server at a new colocation center half way around the world. They installed the OS for me and sent me the root password, so there's obviously a great amount of trust in them. However, I'm pretty sure I don't want them to have my root password on a regular basis. And anyway, I intend to only allow key-based login. On some cases, though, it might be useful to let their technical support log in through a physical terminal. For example, if I somehow mess up the firewall settings. Should I even bother worrying about that? Should I set up a sudoer account with a one-time password that will change if I ever use it? Is there a common strategy for handling something like this?

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  • Elantech touchpad: Right + Left click doesn't work

    - by Robert Kilar
    This is very common problem and till yet unresolved. The Elantech driver disables right button + left button touchpad click. In the result you cannot aim and shoot in games also you cannot code that kind of interaction in your applications. Driver detects LMB+RMB click but it somehow filters it. I could not find correct entry in the registry to disable that obviously horrible setting. Please notice: 1. I have the latest drivers the problem existed with really old ones, a year old, on Windows 7, 8 and 8.1 ones and current. 2. It has nothing to do with the Windows or hardware but only with the Elantech driver settings. 3. Driver detects LMB+RMB click - it is shown on a dynamic icon on a task bar also uninstalling drivers fix the problem, but then you can't use your touchpad fully.

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  • RAID - software vs. hardware

    - by Robert MacLean
    I have always used hardware based raid because it (IMHO) it's on the right level (feel free to dispute this) and that OS failures are more common to me than hardware issues. Thus if the OS fails the raid is gone and so is the data, where on a hardware level regardless of OS the data remains. However on a recent Stack Overflow podcast they stated they would not used hardware raid as the software raid is better developed and thus runs better. So my question is, is there any reasons to choose one over the other?

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  • Application to store/browse/view photos?

    - by amorfis
    I am looking for application which I can install on Ubuntu server and put my photos there. It can be by web interface, it can be by mounted samba disk. What I require: Ability to add tags to photos. Ability to move photos. I.e. if I set photos directory to /home/photos, but then I want to move all photos to e.g. /home/common/photos - I don't want to lose all the tags. I used to use FSpot and it was great, but it lacked point 2, and I lost everything :(

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  • Google Chrome can't play some flash videos

    - by Stoney
    Some flash videos won't play in Chrome, while they play perfectly in other browsers. The player will load, but instead of showing a preview of the video and a play button on the middle of the video, the screen is black: Here's an example of a video that does not work and here is a video on the same site that does work. The video that works is a Youtube video embedded on the site with JW Player, while the nonworking one is probably hosted by the website itself. In both cases it is using Flash. The site is popular and others don't seem to be experiencing this problem. I am running Win7 64bit and I have no ad blockers installed. I have found two common solutions to this problem, neither of which work: Solution #1: Remove all flash application data. Solution #2: Enable and disable Chrome's built in flash and System's flash. Any suggestions?

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  • I can't access phpmyadmin on ubuntu after successfull installation

    - by Rana
    I have ready LAMP environment on my amazon Ec2 micro instance(Ubuntu). I have installed phpmyadmin distribution of ubuntu. selected apache2 as the server, then selected 'yes' for 'db-common-config' option. after its completed, I suppose to access it via http://server/phpmyadmin, right? But I can't access it. Is there any way to verify whether its been installed properly and running properly plz? Or do I have to do anything further? Thanks in advance.

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  • Using "enterprise" switches in home network?

    - by Industrial
    Hi everyone, After more than 12 years working with computers, I am still way behind when it comes to networking, so please bear with me :) As of this Christmas, the number of computers in my home has increased and it's well about time to upgrade the current network hardware in order to offer LAN connection to all computers. Trying to find a cheap solution, A close friend offered me a great deal on a "enterprise-class" Switch from HP (more LAN ports than I would ever need), at the same price as what a brand new Netgear or D-link Switch with 6/8 ports would cost me in retail. Would it be common sense to get this one and start using it immediately and never again have to worry about running out of LAN connections, or am I taking on a bigger bite than what I could chew?

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  • Windows Media Player crashes on startup after CPU upgrade

    - by NathanE
    I upgraded my CPU, reactivated Windows Vista etc. But WMP has stopped working. It just crashes almost immediately after starting up. If I look in Event Viewer it mentions the source as being "Indiv01.key". I have searched my OS drive for this file but it does not exist anywhere. Some Googling has revealed it seems to be a common problem and that it is DRM related. Though there doesn't seem to be any concrete solution. Any ideas? Thanks!

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  • FreeNX Server w/ nxagent 3.5 not able to create shadow sessions

    - by Jenna Whitehouse
    I am running a FreeNX server on Ubuntu 11.10 and am unable to do session shadowing. I get the authorization prompt, but the shadow client crashes after. The NX server log in the user's .nx directory is as follows: Error: Aborting session with 'Server is already active for display 3000 If this server is no longer running, remove /tmp/.X3000-lock and start again'. Session: Aborting session at 'Mon Oct 1 14:26:44 2012'. Session: Session aborted at 'Mon Oct 1 14:26:44 2012'. This then deletes the lock file, which is the lock file for the initial Unix session and crashes out. Everything works for a normal session, and shadowing works up to the authorization prompt. I am using this software: Ubuntu 11.10 freenx-server 0.7.3.zgit.120322.977c28d-0~ppa11 nx-common 0.7.3.zgit.120322.977c28d-0~ppa11 nxagent 1:3.5.0-1-2-0ubuntu1ppa8 nxlibs 1:3.5.0-1-2-0ubuntu1ppa8 Any help is appreciated, thanks!

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  • Possible to use LVM partitions inside a vmbuilder created KVM virtual machine?

    - by Tauren
    I have an Ubuntu 9.10 host system with LVM partitions running KVM. I've been creating VMs using vmbuilder using LVM partitions for each VM instead of files for the VMs. When I configure a VM using vmbuilder --part, the partitions in the file I'm using are created as regular partitions (sda1, sda2, etc.). What I'd like to do is use LVM inside of the VM in case I need to resize the partitions at some point. But I don't see any options for doing that using the vmbuilder tool. It seems like this might be a common request to avoid using kpartx, etc. Is there something I'm missing, or is this just not possible with vmbuilder?

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  • Using LDAP Attributes to improve performance for large directories

    - by Vineet Bhatia
    We have a LDAP directory with more than 50,000 users in it. LDAP Vendor suggests maximum limit of 40,000 users per LDAP group. We have number of inactive users and those are being purged but what if we don't get below the 40,000 users? Would switching to using multivalued attribute at user record level instead of using LDAP groups yield better performance during authentication, adding new users, etc? I know most server software (portal, application servers, etc) use LDAP groups. But, we have a standardized web service interface for access control instead of relying on server software to map LDAP groups to security roles. Each application uses this common "access control web service". Security roles are used within application to build fine-grained ACL used within each enterprise application.

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  • Virtual Hosting in RHEL 5

    - by Kumar P
    We have a RHEL 5 Linux server with a few Windows XP clients. We provide web development in PHP. Now my developers as for common local PHP server for keep their projects in same place. Currently the proxy server and Samba sharing are running on the RHEL 5 server. I installed httpd, PHP and MySQL in the server. And I would like to configure virtual hosting too for LAN. What I want do for it? We have 2 Ethernet ports in the server, 1 for local connections and another one for Internet. Internet is provided by an ADSL provider. (192.168.0.0 series for ADSL modem connection and 10.1.1.0 for the LAN connection. If I want to use virtual hosting, do I need to setup local DNS server? My requirements are: setup PHP with MySQL server for local clients with multiple hosting, without disturbing proxy and Samba.

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  • Apache Reverse Proxy server and SSL NTLM SharePoint

    - by user50211
    Hi, I'm trying to set Apache as proxy server to an internal SharePoint server. I have previously configured Apache to run as a proxy server to export internal webpages and web applications. However, the Sharepoint is using SSL and NTLM authentication, and this is new to me :( I have tried many options, the traffic seems to be forwared as I get the authentication popup window, but when I insert the user/pass, I get back to the same popup window. Anybody has configured Apache to do so? Here is a part of my httpd.conf: <VirtualHost *:443> ServerName repository.out.com SSLProxyEngine On RequestHeader set Front-End-Https "On" ProxyRequests Off ProxyPreserveHost On ProxyPass / https://sharepoint.in.com ProxyPassReverse / https://sharepoint.in.com CacheDisable * SetEnv force-proxy-request-1.0 1 SetEnv proxy-nokeepalive 1 ErrorLog logs/jlanza_log CustomLog logs/jlanza_log common </VirtualHost>

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  • Clicking hyperlinks in Email messages becomes painfully slow

    - by Joel Spolsky
    Running Windows 7 (RC, 64 bit). Suddenly, today, after months without a problem, clicking on links has become extremely slow. I've noticed this in two places. (1) clicking hyperlinks in Outlook email messages, which launches Firefox, takes around a minute. Launching Firefox by itself is instantaneous - I have an SSD drive and a very fast CPU. (2) opening Word documents attached to Outlook email messages also takes a surprisingly long time. The only thing these two might have in common is that they use the DDE mechanism, if I'm not mistaken, to send a DDE open command to the application. Under Windows XP this problem could sometimes be fixed by unchecking the "Use DDE" checkbox in the file type mapping, however, I can't find any equivalent under Windows 7. See here for someone else having what I believe is the same problem. See here for more evidence that it's DDE being super-super-slow.

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  • Reboot VPS by reaching memory limit

    - by Ali
    When a server uses memory more than available RAM, the system will shut down the virtual machine. Then, it is only possible to boot from outside (VPS control panel, e.g. vePortal or SolusVM). However, it should be possible to plan a reboot before possible shut down. What is the best practical method to check the used memory, and reboot the system upon reaching e.g. 90% of the allowed RAM? Is there a common program or script to do so? I am using Debian/Ubuntu.

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