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• Why is access to my database very slow?

  - by Fabien

  I have a mysql database that used to work perfectly fine, but now it is dead slow on startup. When I type in $> mysql -u foo bar I get the following usual message for about 30 seconds before I get a prompt : Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Of course, I tried it and it goes a lot faster : $> mysql -u foo bar -A But why do I have to wait so long in regular startup ? This is not a very big database, and data does not seem to be corrupted (everything looks fine after startup). I have no other client connecting to the mysql server at the same time (only one process is shown with the command show full processlist) and I have already restarted the mysqld service. What's going on ?

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• How to connect to my US network overseas via VPN?

  - by GiH

  I purchased an Apple TV for my parents and I have a netflix account. My parents live overseas, and I was wondering if they could use my account to get it to work. I read that it won't work unless you use proxies or a VPN, so I was wondering if its possible for me to setup a VPN to my network in the US instead of paying a service like StrongVPN? Setup: Router in US - Airport Extreme Router abroad - D-link (not sure of model) I know that the AppleTV doesn't have a built-in VPN client, maybe eventually when its jailbroken there will be an app, but as of now I'll have to use the routers right? Any other ideas are welcome as well!

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• Install/import SSL certificate on Windows Server 2003/IIS 6.0

  - by ChristianSparre

  Hi A couple of months ago we ordered an SSL certificate for a client's server using the request guide in IIS 6.0. This worked fine and the guide was completed when we received the certificate. But about 2 weeks ago the server crashed and had to be restored. Now I can't seem to get the site running. I have the .cer file, but what is the correct procedure to import the the certificate? I hope some of you can help me.. -- Christian

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• Managing service passwords with Puppet

  - by Jeff Ferland

  I'm setting up my Bacula configuration in Puppet. One thing I want to do is ensure that each password field is different. My current thought is to hash the hostname with a secret value that would ensure each file daemon has a unique password and that password can be written to both the director configuration and the file server. I definitely don't want to use one universal password as that would permit anybody who might compromise one machine to get access to any machine through Bacula. Is there another way to do this other than using a hash function to generate the passwords? Clarification: This is NOT about user accounts for services. This is about the authentication tokens (to use another term) in the client / server files. Example snippet: Director { # define myself Name = <%= hostname $>-dir QueryFile = "/etc/bacula/scripts/query.sql" WorkingDirectory = "/var/lib/bacula" PidDirectory = "/var/run/bacula" Maximum Concurrent Jobs = 3 Password = "<%= somePasswordFunction =>" # Console password Messages = Daemon }

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• Employers and intellectual property 2

  - by Rick

  I have a question about intellectual property, I am currently a manager in a small manufacturing firm. The owners are driven by greed and don't appreciate the development process of complex machinery and are happy just to send things out half done. I on the other hand think that it should be done properly as breakdown in the field can be costly, embarrassing. They seem to have all of us running around doing most of the work out of hours using the attitude of "Be grateful to have a job" yet no one has a contract or any security or any agreement in place. For a couple of the projects i am using PLC's and doing the code in my own time and the testing during company time, and i am aware that they cannot support their own machines if i left, but as i created the code in my own time who owns it? The have asked my to put in a shutdown code for a maintenance request after a given length of time, could this be classed as criminal damage or anything illegal apart from immoral? (we sell the machines with 12 month warrantee, shut down after) But as time goes on I'm getting rather fed up of the companies attitude toward the client. I am considering keeping the clients as my own and get them to contact me directly In the shutdown code. By doing something like this is a trial version contact me for a full license? I wouldn't feel bad for my current employer as he is not afraid to S***t on people as he has been evolved in numerous law suits and has over 30 failed companies leaving people and customers high and dry, we have took the company this far on the reputation of the workers and and i can see things heading like all the other companies he has owned and taking our reputations with him. So i suppose now i have set the scene, if i code into it to contact me directly in the shutdown could there be any legal impact on me, as i rightly or wrongly think i own the code and designs? Cheers R

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• How to configure a new subdomain for a wildcard certificate?

  - by Amit

  Hi, We have wildcard certificate installed in our production environment. One of our client wants his name to appear in the URL (e.g. companyname.example.com). How we should facilitate this? Do we need to make any entries for this in DNS? If yes can you please let me know about it? I need to set this up before Fridat PST, any help in this is highly appriciated. Thanks.

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• Distributed Server Monitoring Solution

  - by MaterialEdge

  I belong to an independent IT firm that manages and maintains about 50 business clients networks, ranging from small 5 system networks to 200+ systems. Because we are unable to directly monitor each server at these locations (distributed over a very large area) on a regular basis I am looking for a method to monitor and alert us to any problems that may arise so that we can respond quickly with, hopefully, preventative measures. I'm not sure what solutions are available for this type of situation, but something that utilizes a central server at our business with all client servers sending alerts or logs to it for daily monitoring might work best. All these servers are running a Windows Server OS. In your opinion, what would be the best course of action to accomplish this?

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• Connect through SSH and type in password automatically, without using a public key

  - by binary255

  A server allows SSH connections, but not using public key authentication. It's not within my power to change this at the moment (due to technical difficulties, not organizational) but I will get on it as soon as possible! What I need now is to execute commands on the server using plain old account+password authentication from a script. That is, I need to do it in a non-interactive way. Is it possible? And how do I do it? The client which will be executing the script runs Ubuntu Server 8.04. The server runs Cygwin and OpenSSH.

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• Forking a GPL dual licensed software with business owned copyrights

  - by Eric

  After receiving some threats of the copyrights holder of a dual licensed software(GPL2 and commercial) to buy the commercial version for projects in production, I am thinking to make a fork. In a case of GPL2 and commercially dual licensed with business owned copyrights software, is forking the GPL2 version an option? Also, is forking a good way to deal with such cases? Background information The software is a web CMS released under 2 versions a GPL2 free open source edition and a commercial edition including technical support and extra functionality. The problem is that now, basing their argumentation on the "distribution" definition of the GPL2, the company holding the copyrights argue that delivering the software and some extensions to a client is considered as a "distribution". And that such a "distribution" falls under the GPL2 obligation to release the custom made extension code. Custom made extensions are mainly designs, templates and very specific functionality. Basically they give me 3 choices: Buying the commercial licensed edition for projects based on the GPL in production, Deleting all the projects in production based on GPL2 version, Releasing all the extensions as GPL2 code. The first 2 options are nothing realistic for finished projects. The third option could be fine, but as most of the extensions are very specific, cleaning the code to make it usable by other users means lot of works and also I am not sure the clients will appreciate to have their website designs and specific functionality released publicly. The copyrights holding company even contacted some clients directly, giving them the "choice". I know that this is a very corporate interpretation of GPL2, and a such action is nothing close to legal, but as an independent developer, I don't want to take the risk to get involved in some long and tiring legal procedures. PS. This question was first asked on Stack Overflow where it felt out of the scope and closed, after reading the present site FAQ, discussing about software licensing seems fine.

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• send music to upnp device from PC

  - by markrich

  I have a new Arcam AirDAC (http://www.arcam.co.uk/products,rSer...ACs,airDAC.htm) attached to my stereo which has upnp support. I would like to send audio from my 14.04 PC to the box itself and to this end installed Rygel upon my system to help but it hasn't. I have created a new sound device in PulseAudioPreferences and selected it from inidcator-sound-switcher but here I become stuck. The sound is heading to the new sound device as the volume can be seen to go up and down from PulseAudioVolumeControl but no sound comes from the stereo downstairs. The problem, as I see it, is the new device has no idea where to send the music as the Arcam hasn't been chosen from any program. So - I installed BubbleUPNP and Plex. My music has been imported into the later and the former can see both the Arcam as a Renderer and the Plex as the Media Server. Installing the BubbleUPNP program on my Android tablet allowed me to send music and all seemed good UNTIL I started playing AIFF and ALAC music and it all stopped. No suitable decoding device. So that scuppered that route. So here I am and stuck. How can I tell Ubuntu to use the Arcam as a renderer to play music through when the albums are played from Rhytmnbox, Tomahawk, Clementine or other? Clementine would be my preferred client as there is a usable remote control program for the tablet. Can anyone help me fix this or advice another way to do what I would like?

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• Behaviour of nginx as proxy

  - by HD

  I'm testing nginx with different configurations to replace an architecture working with squid + apache. I know that I can use nginx to manage static requests and load balancing but I'm interested in one particular solution that I don't understand clearly: I'm using 2 nginx servers (balanced) with the proxy_pass setting to pass all requests to an apache server. When one client makes a request to the site one of the nginx servers process it and send it to the apache server. Now, how this behaviour could be an improvement to my system?, it seems that all requests are passing through apache and I don't see benefit at all. What happens when 100 simultaneous connections pass through nginx? The 100 connections will be going to the apache server or is some kind of internal behaviour that allows an small impact into apache?

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• Avoid cache overflow in Atempo LiveBackup

  - by Vebjorn Ljosa

  When attempting the initial backup of a new client, Atempo LiveBackup seems to require a very large cache. For instance, a 20 GB cache is not enough to back up a computer that has 100 GB of data. It appears that LiveBackup is adding new files to the cache at a faster rate than it can send them to the server. When the cache fills up, the backup fails. Aside from removing most data from the computer and then add them back gradually after the initial backup, is there a good workaround? Is it possible to make LiveBackup slow down its scan so as to not fill the cache? Or is it possible to place the cache on an external drive?

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• email archive for multiple users

  - by evanmcd

  Hi, I'm moving a web site from one server to another, and am realizing that I need to move the name servers for the domain as well (they are set to the current host, not to the registrar). So, knowing that email services will stop as soon as I switch the DNS, I'm scrambling to figure out how to archive and make available email data for folks that have mostly been using webmail for the past few years, and may not even have a computer on which to install a client to download the mail to. What does one do in this situation? Thanks for any help offered! Evan

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• How to setup server to accept pem(private RSA key) login w/o password like EC2?

  - by Chandler.Huang

  I am manage a group of VM and I need to setup all vm create a ssh tunnel to a specific host A. One way to do this is append public key of each VM to host's authorized_keys, but I guess I have to do the append each time i create a VM. So I am trying to config host A to accept pem or private key login without passowrd, just like EC2, client can use "ssh -i PEM" to login host A. But I have tried in vain for hours. I create a rsa public/private key and let VM use the private key to login, no matter what I do, host a still ask for password. Is there anything I missed ? Thanks.

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• Bind9 forwarding zone not working

  - by JMW

  i've setup a forwarding zone on a RHEL6 Bind server like this: zone "office.local" IN { type forward; forward only; forwarders { 192.168.0.2; 192.168.0.3; }; }; when i try to query using dig @127.0.0.1 monitorsms.office.local i see the following message in the syslog: client 127.0.0.1#39376: query: monitorsms.office.local IN A + (127.0.0.1) validating @0x7ff7640357d0: monitorsms.office.local A: bad cache hit (monitorsms.office.local/DS) google tells me, that there is an issue with DNSSEC, but both servers do not have DNSSEC configured and thus do not send any DNSSEC records. What's wrong with my configuration?

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• Looking at desktop virtualization, but some users need 3D support. Is HP Remote Graphics a viable solution?

  - by Ryan Thompson

  My company is looking at desktop virtualization, and are planning to move all of the desktop compute resources into the server room or data center, and provide users with thin clients for access. In most cases, a simple VNC or Remote Desktop solution is adequate, but some users are running visualizations that require 3D capability--something that VNC and Remote Desktop cannot support. Rather than making an exception and providing desktop machines for these users, complicating out rollout and future operations, we are considering adding servers with GPUs, and using HP's Remote Graphics to provide access from the thin client. The demo version appears to work acceptably, but there is a bit of a learning curve, it's not clear how well it would work for multiple simultaneous sessions, and it's not clear if it would be a good solution to apply to non-3D sessions. If possible, as with the hardware, we want to deploy a single software solution instead of a mishmash. If anyone has had experience managing a large installation of HP Remote Graphics, I would appreciate any feedback you can provide.

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• Block site on a PC logged into a domain and using a proxy

  - by Rauf

  I read lot of posts related with blocking sites. Most of the posts says to edit hosts file. I know it is a good method. But this one is not working for me. Can you guess what is the issue by analyzing the following details, My PC is joined to a domain and using proxy settings, and the logged in user having administrator privileges. After reading some answers, I did the following Changed the hosts file to have # 38.25.63.10 x.acme.com # x client host 127.0.0.1 localhost 127.0.0.1 www.facebook.com Added no proxy for facebook, Still, it is not working. Why ?

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• Windows app that can stream video over local net with remote browsing

  - by Nifle

  What I want: An app that runs on a windows 7 computer that can stream movies to the other computers in the house. I want to be able to brows the movies on my "server" from the other computers and start streaming. I'm aware that VLC can do some (all?) of this but it's looks to complicated for my 6year old to use. Ideally I'd like something "Air Video Server" but for mac/win computers with a native client for browsing the movies on the PC running as server.

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• Windows remote shutdown: access denied

  - by gregseth

  I have 3 "client" computers, on which the mentioned user is administrator: CPU1: Win Vista 32-bit -- User: Domain\User1 -- IP: 192.168.42.1 CPU2: Win 7 64-bit -- User: localhost\User2 -- IP: 192.168.42.2 CPU3: Win 7 64-bit -- User: Domain\User3 -- IP: 192.168.42.3 And a "target" computer (the one that I want to shutdown from the three others): TGT: Win 7 64-bit -- User: localhost\User4 -- IP: 192.168.42.21 I'm trying to shutdown TGT with the following command: shutdown /s /m \\192.168.42.21 It's working from CPU1 (meaning TGT shuts down), but from CPU2 and CPU3 I get the following message: Access denied. (5) What am I to understand? What should I do to get it working form all of my computers.

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• Use of list-unsubscribe to improve inbox delivery

  - by Jeffrey Simon

  To overcome email being classified as spam by Gmail, Google recommends a number of steps, which we have implemented (namely SPF, DKIM, and Precedence: bulk). One additional measure they recommend at https://support.google.com/mail/bin/answer.py?hl=en&answer=81126#authentication reads as follows: Because Gmail can help users automatically unsubscribe from your email, we strongly recommend the following: Provide a 'List-Unsubscribe' header which points to an email address where the user can unsubscribe easily from future mailings (Note: This is not a substitute method for unsubscribing). Documentation for List-Unsubscribe is found at http://www.list-unsubscribe.com/. From this documentation I expect a button to be provided by a supported mail client. I have tested the 'List-Unsubscribe' header and it does not appear to provide the button. I have tested in both Gmail and OS X Mail. I tested with an http address and with both an email address and an http address. The format of the header is as follows: List-Unsubscribe: <mailto:[email protected]>, <http://domain.com/member/unsubscribe/[email protected]?id=12345N> No button appears in any test. My questions: How widely is List-Unsubscribe supported? Should a button be appearing somewhere, or does something else have to be present? I have seen a comment that even if the button is not present, services like Gmail, Yahoo, Hotmail/Windows Live would give higher regard to email having the header. Thus it might be worthwhile for this aspect alone. Please note that our standard email footer already contacts instructions and a link to allow unsubscribing from our email. Finally, is it worth while to implement this header? (That is, any downsides?)

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• Clipboard app that automatically saves to Web share folder ?

  - by cyberpine

  I currently use SnagIt and have used Windows 7 Snipping tools. These tools allow you to copy a piece of your screen the clipboard and then paste it into other applications on your desktop. They work with Outlook and it's really useful as you don't have to save the image to do a write-up or send an email. Problem is - you can't paste clipboard images into webforms. Gmail web does have image insert feature, but it only works on web images that you copied as it extracts the full url from your copy and uses that. It does not work on with images in your local clipboard. Does anybody know of an application that would allow to clip and save directly to a web folder, maybe something that replaces your clipboard with the URL of the save image location? It would be awesome if the picasa web client or evernote allowed actual clipboard pasting. Instead they ask for a file to upload.

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• Dedicated server: managed hosting or manage it myself?

  - by ddawber

  We're currently hosting a number of sites on a self-managed dedicated server. Some companies, however, offer a managed dedicated server hosting service. They offer: Roughly the same server spec Ticketing system support Managed daily backups Virtual firewall (but with a limit of 10 IP addresses allowed through at any one time) Now, this managed hosting is at extra expense - somewhere in the region of $500 per month, and the limit on the number of IP addresses they'll manage on the firewall is also a real pain. My thinking is it would be better and cheaper to Stay with the same host since the dedicated box is fine Get an Amazon AWS account and use their server to manage backups; there are a number of good tools that can be used to automate the process Configure iptables so that I have complete control of the firewall I want to know Is a managed virtual firewall likely to be more secure than me configuring iptables? Whether, in your opinion, it's best to let someone else take care of backups? If, from your experience, there's anything else i'm missing that warrants using managed hosting over a DIY service? I think there is some reluctance to not having managed hosting since a managed host in effect takes responsibility for your server, whereas any hardware or security issues with a server that we manage would mean we are forced to hold our hands up when a client site goes down. That said, I personally don't think a managed host does that much in the day to day running of your server (backups are automatic, OS updates are carried out with ease, etc.).

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• LAMP setup - phpmyadmin says the mysqli extension is missing (but its listed in phpinfo)

  - by WebweaverD

  I regularly set up virtualbox ubuntu setups to run as local webservers. I have set these up several times and never had an issue. Recently I have been cloning them but wanted to do a fresh install this time in the hopes of fixing some niggling problems which have propagated through my setups. However, something has changed: 1)vb guest additions no longer allow me to copy and paste (i'll worry about that later) 2)more importantly phpmyadmin no longer works as installed - Initially going to localhost/phpmyadmin gave a message that the page could not be found. So I have followed some instructions (sorry I know its vague I cant find them now) which have created a phpmyadmin directory in /var/www but now I get an error saying: the mysqli extension is missing. If I run phpinfo mysql and mysqli are listed. All I have done so far is install apache2 (working) install php5 (which I think used to come with apache) Install mysql server (and client for good measure) and install phpmyadmin I found a post of a similar question which suggested I should install php5-mysql (done) and edit php.ini and uncomment the line extension-mysqli.so - this is not there, so I tried adding it with no joy. I have restarted apache and still no joy on phpmyadmin. Any help is much appreciated as this is driving me nuts. Why the change for the worse - I was just starting to like linux! I'm running a windows 7 machine and the guest os is ubuntu 12.04 - I ran apt-get update before doing anything so all packages should be the latest versions.

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• Oh snap! My RPi was upgraded to 512MB! Woo-hoo!

  - by hinkmond

  I ordered a Raspberry Pi Model B (256MB) over 4 months ago on backorder. When it finally came I saw it was upgraded to the new half a gig model! Woot! But, all was not perfect. Gary C. told me the shipped configuration of the new RPi models didn't have the right firmware for 512MB, and I had to upgrade the start.elf in the /boot directory to recognize all of the 512MB RAM. I did a "free" command, and sure enough saw only 240MB. Sadness. But, Gary gave me a copy of his start.elf which worked after some trail and error. For anyone ordering the new RPi Model B w/512MB, here are the steps to get you going with full 512MB RAM: sudo apt-get update --fix-missing sudo apt-get upgrade --fix-missing # NOTE: This step takes at least a couple hours on a # fast network wget https://raw.github.com/raspberrypi/firmware/\ 164b0fe2b3b56081c7510df93bc1440aebe45f7e/boot/\ arm496_start.elf sudo mv /boot/start.elf /boot/orig-start.elf sudo mv arm496_start.elf /boot/start.elf sudo reboot free total used free shared buffers cached Mem: 497768 210596 287172 0 16892 169624 -/+ buffers/cache: 24080 473688 Swap: 102396 0 102396 So of course this means... (drumroll) there is now 498MB available for the Java Embedded heap! java -Xmx400m -version java version "1.7.0_06" Java(TM) SE Embedded Runtime Environment (build 1.7.0_06-b24, headless) Java HotSpot(TM) Embedded Client VM (build 23.2-b09, mixed mode) Yeah, baby! Hinkmond

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• connection to apache server switches sockets connection

  - by Newben

  I have just post a question but I post an other one because the problem is not the one I had in thought when asking the latter. So, I am running some rails app on osx, when I run rails s, everything works fine. If I shut down the apache server (mamp) and if I run rails s again, I have this message Can't connect to local MySQL server through socket '/Applications/MAMP/tmp/mysql/mysql.sock', which for sure is normal. For info, my mamp server is running, and the connection must pass through /Applications/MAMP/Library/bin/mysql, so I aliased it by setting in my bash profile : alias mysql="/Applications/MAMP/Library/bin/mysql" Now, when I launch a rails generate command type, I get this message : /$root/vendor/bundle/ruby/2.0.0/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `connect': Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) (Mysql2::Error) So how it can be ?

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