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  • apache-user & root access

    - by ahmedshaikhm
    I want to develop few scripts in php that will invoke following commands; using exec() function service network restart crontab -u root /xyz/abc/fjs/crontab etc. The issue is that Apache executes script as apache user (I am on CentOS 5), regardless of adding apache into wheel or doing good, the bad and the ugly group assignment does not run commands (as mentioned above). Following are my configurations; My /etc/sudoers root ALL=(ALL) ALL apache ALL=(ALL) NOPASSWD: ALL %wheel ALL=(ALL) ALL %wheel ALL=(ALL) NOPASSWD: ALL As I've tried couple of combination with sudoer & httpd.conf, the recent httpd.conf look something as follows; my httpd.conf User apache Group wheel my PHP script exec("service network start", $a); print_r($a); exec("sudo -u root service network start", $a); print_r($a); Output Array ( [0] => Bringing up loopback interface: [FAILED] [1] => Bringing up interface eth0: [FAILED] [2] => Bringing up interface eth0_1: [FAILED] [3] => Bringing up interface eth1: [FAILED] ) Array ( [0] => Bringing up loopback interface: [FAILED] [1] => Bringing up interface eth0: [FAILED] [2] => Bringing up interface eth0_1: [FAILED] [3] => Bringing up interface eth1: [FAILED] ) Without any surprise, when I invoke restart network services via ssh, using similar user like apache, the command successfully executes. Its all about accessing such commands via HTTP Protocol. I am sure cPanel/Plesk kind of software do use something like sudoer or something and what I am trying to do is basically possible. But I need your help to understand which piece I am missing? Thanks a lot!

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  • Can't ping Ubuntu laptop from my LAN

    - by oskar
    My laptop has Ubuntu 10.10 and is connected to my router with full internet access, yet I can't ping it from other computers on my LAN. I tried the following: I can successfully ping those other computers from my Ubuntu laptop, so I didn't accidentally connect to someone else's network. I can successfully ping my Ubuntu laptop from itself, though I don't know if that means anything. I haven't messed with iptables at all, so it currently doesn't have any rules set that would cause it to reject anything. I made a DHCP reservation for my laptop's MAC address in my router to make sure I was always using the correct IP address. Please note that I am using a "command line only" install of Ubuntu, so I can't use any GUI network config tools. The reason I want to ping it is because I am trying to run an NFS server on the laptop, yet despite correctly setting it up I cannot access the NFS volume on another computer because it isn't even visible on the network right now.

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  • Issues when upgrading gnome-session

    - by Gabriel A. Zorrilla
    I'm having issues since yesterday after an upgrade. GNOME session got messed up somehow and now i cannot install further upgrades nor new apps. Here is what i got from terminal after doing the recommended apt-get install -f; (Reading database ... 166876 files and directories currently installed.) Preparing to replace gnome-session 3.0.1-0ubuntu1~build2 (using .../gnome-session_3.0.2-0ubuntu3~natty1_all.deb) ... Unpacking replacement gnome-session ... dpkg: error processing /var/cache/apt/archives/gnome-session_3.0.2-0ubuntu3~natty1_all.deb (--unpack): trying to overwrite '/usr/share/xsessions/gnome-shell.desktop', which is also in package gnome-shell 3.0.1-0ubuntu1~build1 Errors were encountered while processing: /var/cache/apt/archives/gnome-session_3.0.2-0ubuntu3~natty1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) In var/log/apt/history.log, it says: Start-Date: 2011-05-29 17:56:16 Commandline: apt-get -f install Upgrade: gnome-session:amd64 (3.0.1-0ubuntu1~build2, 3.0.2-0ubuntu3~natty1) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2011-05-29 17:56:21 No idea what all this means.

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  • Mac OS X: which folders should ClamXav Sentry watch?

    - by trolle3000
    I'm using ClamXav on my Mac. I've read this, and I am aware of the whole Macs-need-no-AV-but-they-do-anyway discussion. I guess that's why I would feel like a real jerk if I somehow managed to compromise my system! So ClamXav has been downloaded and ClamXav Sentry set up to start on log-in, but it doesn't really do anything before you tell it to. Specifically, you have to tell it which folders to watch for virusses/vira so I'm wondering, where are good places to look? Currently it's been set up to look the following places: In the home folder: ~/Downloads ~/Library/Caches ~/Library/Contextual Menu Items ~/Library/Cookies ~/Library/Internet Plug-Ins ~/Library/LaunchAgents In my system folder: /Library/Application Support /Library/Caches /Library/Contextual Menu Items /Library/Cookies /Library/Internet Plug-Ins /Library/LaunchAgents /Library/LaunchDaemons /Library/Startupitems Basically, this is 100% conjecture. All (most of) the folders have something to do with the Internet and things that start up automatically, so I'm guessing that's where vira go. But still, the qustion: Which folders should ClamXav Sentry watch, if any? FYI, I'm not using any mail applications, but please include that in your answer for anyone who might be interested.

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  • Would this violate any copyright issues?

    - by Farhad
    I am currently publishing a paper on skin detection. However, I need to find the appropriate histogram bin size for each colorspace. I recently came upon a paper that published what it found to be the ideal bin size. The paper can be found at: http://www.inf.pucrs.br/~pinho/CG/Trabalhos/DetectaPele/Artigos/OPTIMUM%20COLOR%20SPACES%20FOR%20SKIN%20DETECTION.pdf. I am specifically talking about Table 1. If I cite the source, would it be okay for me to use data from the table? Note that I cannot contact the author of the paper.

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  • Headless VirtualBox VM NAT Network

    - by dirt
    I have a remote linux server accessible through SSH only. My goal is to host multiple Virtual Machines on this host server using VirtualBox. The host server has 1 IP address, so NAT will be used to route to the VMs for example 10022 will forward to server1:22 and 20022 will forward to server2:22. I have installed VirtualBox and copied a pre-configured CentOS VM to the host server. I start the VM, but cannot establish a connection to the server for example ssh -p 10022 127.0.0.1 times out. I've tried many things: Method 1: Copied existing .vdi, attached to new VM Method 2: Imported .Ova VM (thought it would help any MAC re-init issues?) NAT network type, tried natnet1 192.168/16 and 10.0/16 VBoxManage modifyvm "hermes.awoms.com" --natnet1 "192.168/16" Port forwarding with and without specifying VM ip in modifyvm --natpf1 command VBoxManage modifyvm "hermes" --natpf1 "guestssh,tcp,,10022,,,22" VBoxManage modifyvm "hermes" --natpf1 "guestssh,tcp,,10022,192.168.0.15,22" I can't see if VM is even booting (VBoxHeadless "hermes" --start & runs with no errors) I can't tell if VM is getting an IP address Is there anything else I can do to get more information from VirtualBox or the VM starting up when the only access I have is SSH?

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  • No audio flash movies

    - by Valerio Giuffrida
    I've installed natty a few days ago and I'm experience some issues with the audio. Basically, I'm not able to listen anything coming from flash movies (such as youtube). This happen with both chromium and firefox (I use only the first one) and the errore I get in the stdout is: ALSA lib pcm.c:2109:(snd_pcm_open_conf) Cannot open shared library /usr/lib/alsa-lib/libasound_module_pcm_pulse.so I don't know how to fix it. I found somewhere to install native x64 flash plugins, but somebody says it is not advisable. I didn't get this kind of issues with 10.10 I've gotten before of natty. Hence, what am I supposed to do? thank you very much

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  • What happens to my Swap space if I choose to replace Windows with Ubuntu?

    - by Ramandeep
    When I install Ubuntu 12.04, I'll be presented with three options: install Ubuntu alongside Windows, replace Windows with Ubuntu and something else. If I choose 'replace Windows', then I cannot make a swap space. So what then? I've 1GB RAM. Will only my C drive get replaced or what will happen? If only C drive is affected, then will data on the other 2 drives get saved? If yes, how can I access it (on which drive of Ubuntu) after installing Ubuntu?

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  • Touchpad not working on an Acer One 725

    - by big-marc
    I installed ubuntu on a usb drive on a acer one 725, and cannot seem to be able to make the touchpad work....here is what i have xinpbig-marc@Big-Marc:~$ xinput --list ? Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? Logitech USB Optical Mouse id=10 [slave pointer (2)] ? ? ETPS/2 Elantech Touchpad id=13 [slave pointer (2)] any can help me out....

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  • Block protect (Keep last line of paragraph with next paragraph)

    - by Ed Cottrell
    Is there a way to force Microsoft Word 2010 to keep the last line of a paragraph with the next paragraph? An example of when this is relevant is when starting a block quote; it doesn't look good to have the block quote start at the top of a new page, particularly when it's introduced by a partial sentence, like this: "Lorem ipsum" is sample text widely used in the publishing industry, as the text has spacing roughly similar to that of English and therefore looks "normal" but unintelligible to an English reader's eye, allowing the reader to focus on design elements. It begins, Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam rhoncus laoreet risus, quis congue leo viverra congue. Suspendisse magna massa, viverra imperdiet est eu, ultrices volutpat lectus. Sed pulvinar est id risus lobortis venenatis. There shouldn't be a page break after "begins," because it looks like the sentence ends abruptly. "Keep lines together" won't work, because by definition we're talking about two paragraphs. "Keep with next" won't work if the first paragraph is larger than a couple of lines, because then you get an awkwardly large space at the bottom of a page. Manual line breaks obviously work, but only when the document is final, which is often less certain than it seems. I know WordPerfect has a feature called "block protect" that does this, but I have not found even an acceptable substitute in Word. I have played with style separators and hidden paragraph breaks, but to no avail. I would love a special character, kind of like the nonbreaking space or zero width optional space, that tells Word to move to the next page if the next paragraph would otherwise start the page. A macro would also be great, but I haven't been able to find a starting point (like how to detect where non-manual page breaks fall). Edit: It looks like "Keep with next" works this way in Word 2013, but I specifically need a fix that works in Word 2010.

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  • Upgrade Debian to unstable on VirtualBox: udev problem

    - by Ken
    I'm running Debian stable on VirtualBox on Windows Vista 64-bit Ultimate. It's been running great, but I needed some newer packages, so I put sid in my sources.list to upgrade to unstable (as I've done a dozen times on various Linux boxes over the years). When I upgraded, something went screwy and it asked me to run apt-get -f install to fix them, which gave this: (Reading database ... 77846 files and directories currently installed.) Preparing to replace udev 0.125-7+lenny3 (using .../archives/udev_151-3_amd64.deb) ... Since release 150, udev requires that support for the CONFIG_SYSFS_DEPRECATED feature is disabled in the running kernel. Please upgrade your kernel before or while upgrading udev. AT YOUR OWN RISK, you can force the installation of this version of udev WHICH DOES NOT WORK WITH YOUR RUNNING KERNEL AND WILL BREAK YOUR SYSTEM AT THE NEXT REBOOT by creating the /etc/udev/kernel-upgrade file. There is always a safer way to upgrade, do not try this unless you understand what you are doing! dpkg: error processing /var/cache/apt/archives/udev_151-3_amd64.deb (--unpack): subprocess new pre-installation script returned error exit status 1 insserv: warning: current start runlevel(s) (2 3 4 5) of script `vboxadd-x11' overwrites defaults (empty). insserv: warning: current stop runlevel(s) (0 1 6) of script `vboxadd-x11' overwrites defaults (empty). insserv: warning: current start runlevel(s) (2 3 4 5) of script `vboxadd-x11' overwrites defaults (empty). insserv: warning: current stop runlevel(s) (0 1 6) of script `vboxadd-x11' overwrites defaults (empty). Errors were encountered while processing: /var/cache/apt/archives/udev_151-3_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) I have the VirtualBox extensions installed, and it looks like the udev install doesn't know what to make of them. But I don't know exactly where/how they're installed (I just ran the VBoxLinuxAdditions-amd64.run script, basically), so I don't know how to disable them. Any ideas? Thanks!

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  • Shared Data Source name error underscore characters added

    - by mick
    The name of our shared data source in RS (report server) is "AF1 Live Database" (no underscore characters - just spaces between words) and is the same in report builder in VS. However, the following error pops up when the RDL of this report is uploaded onto our company site and run. (error we are receiving...) The report server cannot process the report or shared dataset. The shared data source 'AF1_Live_Database' for the report server or SharePoint site is not valid. Browse to the server or site and select a shared data source. (rsInvalidDataSourceReference) We have no idea why the error reports the shared data source as 'AF1_Live_Database' with underscore characters? As this appears to be the problem that keeps the report from running we are seeking your help, thanks.

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  • Error on restarting networking :SIOCSIFFLAGS

    - by Paddington
    I have a sever with 2 network cards, an internal IP on one card (eth0) and external IPs (aliased) on the other card (eth1). I lost connection the public network and I tried to restart networking with /etc/init.d/networking restart and got the error "SIOCSIFFLAGS: cannot assing requested IP and Failed to bring up eth1". I even added the IPs in the interfaces file but still got an error on restarting. I could not ping my default gateway. A work around was to add ifconfig eth 0 x.x.x.x route -add default gw x.x.x.z I could then connect to the public network. What could be the issue here?

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  • Why doesn't apache2 consistently load template fragments from memcached?

    - by Hobhouse
    I run a webserver on an ubuntu box in the rackspacecloud with django 1.0x, apache2/WSGI and memcached 1.2.2. Some of my templates make use of template fragment caching: {% load cache %} {% cache 604800 keyname %} <!-- cache: {% now "H:i, j. b" %} --> {{ my_content }} {% endcache %} When I reload apache2 everything is fine. If keyname is not set, my_content is generated and keyname is set in memcached. After that, my_content is served from memcached. My problem is that after some hours (notably less time than 604800 seconds ), apache2 seems to stop talking to memcached, and my_content is generated from scratch everytime. When this happens I can still set and get keys from memcached from my python shell. Memcached also has more than enough memory to store keys. But to get apache2 to start talking to memcached again I have to restart apache2, and then it will once again start to get the now several hours old keys from memcached. What can be the reason for this behaviour, and how do I fix it?

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  • moving plone or recovering data

    - by Atilla Filiz
    I had a simple plone site running on my Ubuntu 8.10 box, setup by following instructions on https://help.ubuntu.com/community/forum/server/Plone Now the computer got an Ubuntu 9.04 install from scratch, and I want to get the site up and running. As far as I understand several python libraries from 9,04 are not compatible with plone. I tried installing plon3-site from ubuntu repos, and I got this: $bin/instance start Traceback (most recent call last): File "bin/instance", line 103, in ? import plone.recipe.zope2instance.ctl File "/media/Robocup2009/robocup2009/eggs/plone.recipe.zope2instance-2.7-py2.4.egg/plone/recipe/zope2instance/__init__.py", line 16, in ? import zc.buildout File "/media/Robocup2009/robocup2009/eggs/zc.recipe.egg-1.1.0-py2.4.egg/zc/__init__.py", line 1, in ? __import__('pkg_resources').declare_namespace(__name__) ImportError: No module named pkg_resources I have python-pkg-resources installed. I actually don't care about plone, I just found it easy to use. My site is just photo and video archive of several users, with low traffic but several gigabytes of data. What would you suggest? Is it easier to get plone working on my box and start my instance(how?), or recover the content from the instance folder(how?) and setup another content management system(which?)

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  • Problems starting autossh on boot [ubuntu]

    - by Ken
    I'm trying to automatically start an SSH tunnel to my server on boot from a ubuntu box. I have an ubuntu box that's mounted on an 18-wheeler and is networked behind an air card. The box hosts a mysql database that i'm trying to have replicated when the aircard is connected. As I can never be sure of my IP and how many or which routers I'm behind I'm connected to my replication server with an SSH tunnel. I got that working using the following command: ssh -R 3307:localhost:3307 [email protected] Now I'd like that to start whenever the box is, and be alive all the time, so I installed auto-ssh and setup this little script: ID=xkenneth HOST=erdosmiller.com AUTOSSH_POLL=15 AUTOSSH_PORT=20000 AUTOSSH_GATETIME=30 AUTOSSH_DEBUG=yes AUTOSSH_PATH=/usr/bin/ssh export AUTOSSH_POLL AUTOSSH_DEBUG AUTOSSH_PATH AUTOSSH_GATETIME AUTOSSH_PORT autossh -2 -fN -M 20000 -R 3307:localhost:3306 ${ID}@${HOST} I've tried putting this scrip in /etc/init.d/ and using a post-up command in /etc/network/interfaces as well as putting it in /etc/network/if-up.d/. In both situations the script starts on boot, but the tunnel doesn't appear to be correctly established. The script works when run manually.

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  • configure Squid3 proxy server on Ubuntu with caching and logging

    - by Panshul
    I have a ubuntu 11.10 machine. Installed Squid3. When i configure the squid as http_access allow all, everything works fine. my current configuration mostly default is as follows: 2012/09/10 13:19:57| Processing Configuration File: /etc/squid3/squid.conf (depth 0) 2012/09/10 13:19:57| Processing: acl manager proto cache_object 2012/09/10 13:19:57| Processing: acl localhost src 127.0.0.1/32 ::1 2012/09/10 13:19:57| Processing: acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 2012/09/10 13:19:57| Processing: acl SSL_ports port 443 2012/09/10 13:19:57| Processing: acl Safe_ports port 80 # http 2012/09/10 13:19:57| Processing: acl Safe_ports port 21 # ftp 2012/09/10 13:19:57| Processing: acl Safe_ports port 443 # https 2012/09/10 13:19:57| Processing: acl Safe_ports port 70 # gopher 2012/09/10 13:19:57| Processing: acl Safe_ports port 210 # wais 2012/09/10 13:19:57| Processing: acl Safe_ports port 1025-65535 # unregistered ports 2012/09/10 13:19:57| Processing: acl Safe_ports port 280 # http-mgmt 2012/09/10 13:19:57| Processing: acl Safe_ports port 488 # gss-http 2012/09/10 13:19:57| Processing: acl Safe_ports port 591 # filemaker 2012/09/10 13:19:57| Processing: acl Safe_ports port 777 # multiling http 2012/09/10 13:19:57| Processing: acl CONNECT method CONNECT 2012/09/10 13:19:57| Processing: http_access allow manager localhost 2012/09/10 13:19:57| Processing: http_access deny manager 2012/09/10 13:19:57| Processing: http_access deny !Safe_ports 2012/09/10 13:19:57| Processing: http_access deny CONNECT !SSL_ports 2012/09/10 13:19:57| Processing: http_access allow localhost 2012/09/10 13:19:57| Processing: http_access deny all 2012/09/10 13:19:57| Processing: http_port 3128 2012/09/10 13:19:57| Processing: coredump_dir /var/spool/squid3 2012/09/10 13:19:57| Processing: refresh_pattern ^ftp: 1440 20% 10080 2012/09/10 13:19:57| Processing: refresh_pattern ^gopher: 1440 0% 1440 2012/09/10 13:19:57| Processing: refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 2012/09/10 13:19:57| Processing: refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880 2012/09/10 13:19:57| Processing: refresh_pattern . 0 20% 4320 2012/09/10 13:19:57| Processing: http_access allow all 2012/09/10 13:19:57| Processing: cache_mem 512 MB 2012/09/10 13:19:57| Processing: logformat squid3 %ts.%03tu %6tr %>a %Ss/%03>Hs %<st %rm %ru 2012/09/10 13:19:57| Processing: access_log /home/panshul/squidCache/log/access.log squid3 The problem starts when I enable the following line: access_log /home/panshul/squidCache/log/access.log I start to get proxy server is refusing connections error in the browser. on commenting out the above line in my config, things go back to normal. The second problem starts when i add the following line to my config: cache_dir ufs /home/panshul/squidCache/cache 100 16 256 The squid server fails to start. Any suggestions what am I missing in the config. Please help.!!

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  • Package System Broken AMD FGLRX Unmet Dependencies

    - by fleamour
    I uninstalled propriety ATI driver to check if it would fix wrong Plymouth resolution. It did. But now I cannot reinstall either propriety drivers listed. Also package system has broken with this error: The package system is broken If you are using third party repositories then disable them, since they are a common source of problems. Now run the following command in a terminal: apt-get install -f The following packages have unmet dependencies: fglrx-amdcccle: Depends: fglrx but it is not installed Depends: libqtcore4 (= 4:4.5.3) but 4:4.8.1-0ubuntu4.1 is installed Depends: libqtgui4 (= 4:4.5.3) but 4:4.8.1-0ubuntu4.1 is installed What should I do?

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  • Are there any companies using BDD in a .NET environment?

    - by Nick
    I've seen BDD in action (in this case using SpecFlow and Selenium in a .NET environment) for a small test project. I was very impressed - mainly due to the fact that the language used to specify the acceptance tests meant they engaged with the product owner much more easily. I'm now keen to bring this into my current organisation. However I'm asked 'who else uses this?' and 'show me some case-studies'. Unfortunately I cannot find any 'big names' (or even 'small names' for that matter!) of companies who are actively using BDD. I have two questions really: Is BDD adopted by companies out there? Who are they? How can BDD be implemented in an agile .NET environment and are there any significant drawbacks to doing it?

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  • Can't get simple Apache VHost up and running

    - by TK Kocheran
    Unfortunately, I can't seem to get a simple Apache VHost online. I used to simply have one VHost which bound to all: <VirtualHost *:80>, but this isn't appropriate for security anymore. I need to have one VHost for localhost requests (ie my dev server) and one for incoming requests via my domain name. Here's my new VHost: NameVirtualHost domain1.com <VirtualHost domain1.com:80> DocumentRoot /var/www ServerName domain1.com </VirtualHost> <VirtualHost domain2.com:80> DocumentRoot /var/www ServerName domain2.com </VirtualHost> After I restart my server, I see the following errors in my log: [Wed Feb 16 11:26:36 2011] [error] [client ####.###.###.###] File does not exist: /htdocs [Wed Feb 16 11:26:36 2011] [error] [client ####.###.###.###] File does not exist: /htdocs What am I doing wrong? EDIT As per the answer give below, I have modified my configuration. Here are my configuration files: /etc/apache2/ports.conf: Listen 80 <IfModule mod_ssl.c> # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to <VirtualHost *:443> # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> Here are my actual defined sites: /etc/apache2/sites-enabled/000-localhost: NameVirtualHost 127.0.0.1:80 <VirtualHost 127.0.0.1:80> ServerAdmin ######### DocumentRoot /var/www <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> RewriteEngine On RewriteLog "/var/log/apache2/mod_rewrite.log" RewriteLogLevel 9 <Location /> <Limit GET POST PUT> order allow,deny allow from all deny from 65.34.248.110 deny from 69.122.239.3 deny from 58.218.199.147 deny from 65.34.248.110 </Limit> </Location> </VirtualHost> /etc/apache2/sites-enabled/001-rfkrocktk.dyndns.org: NameVirtualHost rfkrocktk.dyndns.org:80 <VirtualHost rfkrocktk.dyndns.org:80> DocumentRoot /var/www ServerName rfkrocktk.dyndns.org </VirtualHost> And, just for kicks, my main file: /etc/apache2/apache2.conf: # # Based upon the NCSA server configuration files originally by Rob McCool. # # This is the main Apache server configuration file. It contains the # configuration directives that give the server its instructions. # See http://httpd.apache.org/docs/2.2/ for detailed information about # the directives. # # Do NOT simply read the instructions in here without understanding # what they do. They're here only as hints or reminders. If you are unsure # consult the online docs. You have been warned. # # The configuration directives are grouped into three basic sections: # 1. Directives that control the operation of the Apache server process as a # whole (the 'global environment'). # 2. Directives that define the parameters of the 'main' or 'default' server, # which responds to requests that aren't handled by a virtual host. # These directives also provide default values for the settings # of all virtual hosts. # 3. Settings for virtual hosts, which allow Web requests to be sent to # different IP addresses or hostnames and have them handled by the # same Apache server process. # # Configuration and logfile names: If the filenames you specify for many # of the server's control files begin with "/" (or "drive:/" for Win32), the # server will use that explicit path. If the filenames do *not* begin # with "/", the value of ServerRoot is prepended -- so "/var/log/apache2/foo.log" # with ServerRoot set to "" will be interpreted by the # server as "//var/log/apache2/foo.log". # ### Section 1: Global Environment # # The directives in this section affect the overall operation of Apache, # such as the number of concurrent requests it can handle or where it # can find its configuration files. # # # ServerRoot: The top of the directory tree under which the server's # configuration, error, and log files are kept. # # NOTE! If you intend to place this on an NFS (or otherwise network) # mounted filesystem then please read the LockFile documentation (available # at <URL:http://httpd.apache.org/docs-2.1/mod/mpm_common.html#lockfile>); # you will save yourself a lot of trouble. # # Do NOT add a slash at the end of the directory path. # ServerRoot "/etc/apache2" # # The accept serialization lock file MUST BE STORED ON A LOCAL DISK. # #<IfModule !mpm_winnt.c> #<IfModule !mpm_netware.c> LockFile /var/lock/apache2/accept.lock #</IfModule> #</IfModule> # # PidFile: The file in which the server should record its process # identification number when it starts. # This needs to be set in /etc/apache2/envvars # PidFile ${APACHE_PID_FILE} # # Timeout: The number of seconds before receives and sends time out. # Timeout 300 # # KeepAlive: Whether or not to allow persistent connections (more than # one request per connection). Set to "Off" to deactivate. # KeepAlive On # # MaxKeepAliveRequests: The maximum number of requests to allow # during a persistent connection. Set to 0 to allow an unlimited amount. # We recommend you leave this number high, for maximum performance. # MaxKeepAliveRequests 100 # # KeepAliveTimeout: Number of seconds to wait for the next request from the # same client on the same connection. # KeepAliveTimeout 15 ## ## Server-Pool Size Regulation (MPM specific) ## # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare # MaxSpareServers: maximum number of server processes which are kept spare # MaxClients: maximum number of server processes allowed to start # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # worker MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # event MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_event_module> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> # These need to be set in /etc/apache2/envvars User ${APACHE_RUN_USER} Group ${APACHE_RUN_GROUP} # # AccessFileName: The name of the file to look for in each directory # for additional configuration directives. See also the AllowOverride # directive. # AccessFileName .htaccess # # The following lines prevent .htaccess and .htpasswd files from being # viewed by Web clients. # <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> # # DefaultType is the default MIME type the server will use for a document # if it cannot otherwise determine one, such as from filename extensions. # If your server contains mostly text or HTML documents, "text/plain" is # a good value. If most of your content is binary, such as applications # or images, you may want to use "application/octet-stream" instead to # keep browsers from trying to display binary files as though they are # text. # DefaultType text/plain # # HostnameLookups: Log the names of clients or just their IP addresses # e.g., www.apache.org (on) or 204.62.129.132 (off). # The default is off because it'd be overall better for the net if people # had to knowingly turn this feature on, since enabling it means that # each client request will result in AT LEAST one lookup request to the # nameserver. # HostnameLookups Off # ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a <VirtualHost> # container, error messages relating to that virtual host will be # logged here. If you *do* define an error logfile for a <VirtualHost> # container, that host's errors will be logged there and not here. # ErrorLog /var/log/apache2/error.log # # LogLevel: Control the number of messages logged to the error_log. # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. # LogLevel warn # Include module configuration: Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf # Include all the user configurations: Include /etc/apache2/httpd.conf # Include ports listing Include /etc/apache2/ports.conf # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i # LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent # # Define an access log for VirtualHosts that don't define their own logfile CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined # Include of directories ignores editors' and dpkg's backup files, # see README.Debian for details. # Include generic snippets of statements Include /etc/apache2/conf.d/ # Include the virtual host configurations: Include /etc/apache2/sites-enabled/ what else do I need to do to fix it? Should I be telling apache to listen on 127.0.0.1:80, or isn't it already listening there?

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  • Single database, multiple system dependency

    - by davenewza
    Consider an environment where we have a single, core database, with many separate systems using this one database. This leads to all of these systems have a common dependency, which ultimately introduces coupling between them. This means that we cannot always evolve systems independently of each other. Structural changes to the database (even if only intended for one, particular system), requires a full sweep test of ALL systems, and may require that other systems be 'patched' and subsequently released. This is especially tricky when you want to have separate teams working on different projects. What is a good 'pattern' to help in avoiding such coupling? I would imagine that a database should be exclusively depended on by one system. If other systems require data for whatever reason, they should request such from an API service of some kind. A drawback of this approach which comes to mind is performance: routing data between high-throughput systems through service calls is much slower than through a database connection.

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  • SQL SERVER – Weekly Series – Memory Lane – #006

    - by pinaldave
    Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. 2006 This was my very first year of blogging so I was every day learning something new. As I have said many times, that blogging was never an intention. I had really not understood what exactly I am working on or beginning when I was beginning blogging in 2006. I had never knew that my life was going to change forever, once I started blogging. When I look back all of this year, I am happy that we are here together. 2007 IT Outsourcing to India – Top 10 Reasons Companies Outsource Outsourcing is about trust, collaboration and success. Helping other countries in need has been always the course of mankind, outsourcing is nothing different then that. With information technology and process improvements increasing the complexity, costs and skills required to accomplish routine tasks as well as challenging complex tasks, companies are outsourcing such tasks to providers who have the expertise to perform them at lower costs , with greater value and quality outcome. UDF – Remove Duplicate Chars From String This was a very interesting function I wrote in my early career. I am still using this function when I have to remove duplicate chars from strings. I have yet to come across a scenario where it does not work so I keep on using it till today. Please leave a comment if there is any better solution to this problem. FIX : Error : 3702 Cannot drop database because it is currently in use This is a very generic error when DROP Database is command is executed and the database is not dropped. The common mistake user is kept the connection open with this database and trying to drop the database. The database cannot be dropped if there is any other connection open along with it. It is always a good idea to take database in single user mode before dropping it. Here is the quick tutorial regarding how to bring the database in single user mode: Using T-SQL | Using SSMS. 2008 Install SQL Server 2008 – How to Upgrade to SQL Server 2008 – Installation Tutorial This was indeed one of the most popular articles in SQL Server 2008. Lots of people wanted to learn how to install SQL SErver 2008 but they were facing various issues while installation. I build this tutorial which becomes reference points for many. Default Collation of SQL Server 2008 What is the collation of SQL Server 2008 default installations? I often see this question confusing many experienced developers as well. Well the answer is in following image. Ahmedabad SQL Server User Group Meeting – November 2008 User group meetings are fun, now a days I am going to User Group meetings every week but there was a case when I have been just a beginner on this subject. The bug of the community was caught on me years ago when I started to present in Ahmedabad and Gandhinagar SQ LServer User Groups. 2009 Validate an XML document in TSQL using XSD My friend Jacob Sebastian wrote an excellent article on the subject XML and XSD. Because of the ‘eXtensible’ nature of XML (eXtensible Markup Language), often there is a requirement to restrict and validate the content of an XML document to a pre-defined structure and values. XSD (XML Schema Definition Language) is the W3C recommended language for describing and validating XML documents. SQL Server implements XSD as XML Schema Collections. Star Join Query Optimization At present, when queries are sent to very large databases, millions of rows are returned. Also the users have to go through extended query response times when joining multiple tables are involved with such queries. ‘Star Join Query Optimization’ is a new feature of SQL Server 2008 Enterprise Edition. This mechanism uses bitmap filtering for improving the performance of some types of queries by the effective retrieval of rows from fact tables. 2010 These puzzles are very interesting and intriguing – there was lots of interest on this subject. If you have free time this weekend. You may want to try them out. SQL SERVER – Challenge – Puzzle – Usage of FAST Hint (Solution)  SQL SERVER – Puzzle – Challenge – Error While Converting Money to Decimal (Solution)  SQL SERVER – Challenge – Puzzle – Why does RIGHT JOIN Exists (Open)  Additionally, I had great fun presenting SQL Server Performance Tuning seminar at fantastic locations in Hyderabad. Installing AdventeWorks Database This has been the most popular request I have received on my blog. Here is the quick video about how one can install AdventureWorks. 2011 Effect of SET NOCOUNT on @@ROWCOUNT There was an interesting incident once while I was presenting a session. I wrote a code and suddenly 10 hands went up in the air.  This was a bit surprise to me as I do not know why they all got alerted. I assumed that there should be something wrong with either project, screen or my display. However the real reason was very interesting – I suggest you read the complete blog post to understand this interesting scenario. Error: Deleting Offline Database and Creating the Same Name This is very interesting because once a user deletes the offline database the MDF and LDF file still exists and if the user attempts to create a new database with the same name it will give error. I found this very interesting and the blog explains the concept very quickly. Have you ever faced a similar situation? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Memory Lane, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Help me with CDMA usb modem (How to change storage mode to modem mode)

    - by user98698
    My modem isn't in the device list of usb_modeswitch.... so I cannot automatically use the modem on the ubuntu.... I found the way to change the modem from usb storage mode to modem mode and I can use my modem. But I forgot the instructions. I don't know the modem's name. It's chinese modem. But here is vendor/product id ....05 Qualcomm, Inc. Mass Storage Device and I think the target vendor/product id is ..... 05. So help me to change. I don't want to replace modem. pls. Sorry for my english....

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  • How to Roll Back to Original Plymouth Splash

    - by fleamour
    The title says it all. It's a bit of an eyesore with propriety NVIDIA drivers, so I tried here. I'm pretty sure I reversed all settings, when it did not work for me. But now: sudo update-alternatives --config default.plymouth Returns error: update-alternatives: error: cannot stat file '/lib/plymouth/themes/default.plymouth': Too many levels of symbolic links I just wanna revert back to the vanilla 12.04 LTS Plymouth splash. Thanks. Also: sudo gedit /lib/plymouth/themes/default.plymouth Returns: "The number of followed links is limited and the actual file could not be found within this limit."

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  • Removing a File Association

    - by Anthony Trudeau
    I found a rather simple way to remove a file association (default program) tonight that I thought others might find useful.  I found it after discovering that Windows 7 doesn't provide a straight-forward way of removing an association.Windows 7 provides a nice interface in the Control Panel for changing associations (Programs > Default Programs > Set Associations), but once you have one you cannot get rid of it.  The Registry is an obvious choice, because that's where the associations are stored.  In fact, the HKEY_CLASSES_ROOT hive has the association, but there is also a key you need to delete somewhere in the HKEY_CURRENT_USER hive.Doing a little poking around, I discovered a command line program called ASSOC that'll do it.  And typing HELP ASSOC confirms that it was what I was looking for.  The solution to my problem turned out to be as simple as typing ASSOC .BIN="" on the command line.

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