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• Website deployment - managing uploaded content?

  - by Legion

  I'm a programmer by trade, "server administrator" by company necessity. We're looking at dumping the old painful "update site by FTP upload" style of deployment. Having the webserver check out the latest code base from version control into a folder and having a "current" symlink point to the latest checkout (allowing for easily stepping back to an older version by changing the symlink) seems to be the way we want to go. But I have a question: what's a good practice for dealing with user-uploaded content? This stuff isn't in version control. I have a couple of ideas for dealing with this, but what is the smart, accepted practice?

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• Web site DNS configuration Without using hosting nameservers

  - by user39110

  Hi, i am publishing my website(www.muratturan.com) by using godaddy's "Total DNS Control". My configuration like this: 1-) I configured my domain to total dns control by setting nameservers to total dns control's. 2-) In total dns control panel i set A host to directly my VPS's ip address. 3-) Also i configured mx records to google apps. Everythings looks good but i am thinking that is this technuqie has any negative effects ? Thanks

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• Assign PowerShell script to run at startup using PowerShell on Window Server 2012

  - by James Toyer

  I'm trying to write a PowerShell script that will run when a Windows 2012 instance is created on AWS using the configuration tools provided by AWS. My problem is that I want to change the name of the machine once it has started up, restart the machine and carry on set up process after. The main reason for this is that one of the applications, Boundary, installed in the set up process takes the name of the server when first installed. It is then doesn't seem possible to change it's name in their portal. Ideally I would have two PowerShell scripts, one to start the set up process, initialised through AWS and another that runs the first time the machine restarts. This second script would ideally be queued to run on the next start by the initial set up script. So I guess my question are: Is this possible? How would I go about doing this. My Google foo is letting me down here so any answers would be appreciated.

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• Godaddy vs. Route53 for DNS

  - by tim peterson

  I have my website set up as an EC2 instance and my DNS is currently Godaddy. I'm considering switching to Amazon AWS Route53 for DNS. The one thing I noticed however is that Route53 charges monthly fees but I never get any bills from Godaddy. Obviously, nobody likes getting charged for something they can get for free. If Godaddy is cheaper, can anyone confirm that the page load speed of an EC2 instance is actually better via Route53 vs. Godaddy? If it is not faster or cheaper, can someone point out other reasons it might make sense to do this switch? thanks, tim

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• Amazon EC2, fastest way to get a node into an existing cluster

  - by imaginative

  I'm new to Amazon AWS. A lot of the time I hear about people folks spawning instances and almost instantly putting them behind a load balancer and into an existing cluster. In the traditional world of managed machines, this would include provisioning hardware, installing an OS, configuring the network on the machine and once the network is available, use a tool of your choice such as CFengine, Puppet or Chef to bootstrap the machine based on its class. It seems like there are "shortcuts" that are able to get a server of a particular class up and running in Amazon EC2. If I have a particular stack running on my server, such as erlang, tomcat6 etc.. what's the fastest way to get these up and running and hooked into Amazon's load balancer? From network, to software stack to kernel tuning? Is it a combination of creating an AMI then running a tool like Puppet against the new instance? Any idea

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• EC2 persistence of machine

  - by Seagull

  I notice that EBS-backed AMIs are much like a VMWare instances -- I can stop them and also persist them to disk, and all this is done relatively quickly. However, I believe that S3 backed machines are different. They cannot be 'stopped', but rather can only be shut-down, written to S3 disk and started up again; with at least a 15 min delay in doing so. Why the difference? How do AMI providers decide whether to use EBS or S3? If I need to stop/persist/restart machines relatively frequently, then I am implicitly limited to just the EBS-backed machines?

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• Vagrant doesn't detect chef-solo unless re-installed

  - by nightowl

  I am using Vagrant to test my Chef recipes in Amazon AWS, and I am encountering an irritating issue: I initially assumed that Vagrant would install chef itself (as it does when using Virtual Box as the provider) but it seems that this needs to be done using the cloud-init script. However, even after I successfully installed the chef gem via cloud-init I was still getting the following error: The chef binary (eitherchef-soloorchef-client) was not found A quick google of this error suggested three probable causes: Chef had failed to install It had installed, but the directory was not in the $PATH environment variable It had installed and in the $PATH but with incorrect permissions I logged in and double checked; chef-solo and chef-client were installed; The path variable for the user, sudo and root all included /usr/local/bin and permissions were all fine. I managed to solve this problem by uninstalling and reinstalling the gem using sudo gem install chef. I don't understand why this should resolve the issue and it is a bit of a problem if I have to ssh into a test box and manually install the gem every time. Does anyone have any suggestions why this might be happening?

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• MySQL Server hitting 100% unexpectedly (Amazon AWS RDS)

  - by Luc

  Please help! We've been struggling with this one for months. This week we upped our RDS instance to the highest performing instance and although the occurrences have reduced, we're still having our DB all of a sudden hit 100%. It comes out of nowhere. Sometimes 2am, sometimes midday. I've ruled out a DOS - our pages access logs have normal traffic I've ruled out memcached suddenly dieing (hits and misses continue as normal). The SHOW PROCESSLIST while we have issues reports about 500 queries in queue. If I kill them off or restart the server, they just keep coming back and then eventually out of knowhere, our server resumes back to normal. Sometimes up to 3 hours. Our bad performing queries take .02 seconds to execute when the server eventually returns back to normal but while we're in this 100% CPU physco phase, those queries never finish executing. Please help!!!!! Anybody know anything about MYSQL query optimization? Could it be the server deciding to use different indexes all of a sudden, which puts it into a spiral?

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• Can't connect to EC2 instance in VPC (Amazon AWS)

  - by Ryan Lynch

  I've taken the following steps: Created a VPC (with a single public subnet) Added an EC2 instance to the VPC Allocated an elastic IP Associated the elastic IP with the instance Created a security group and assigned it to the instance Modified the security rules to allow inbound ICMP echo and TCP on port 22 I've done all this and I still can't ping or ssh into the instance. If I follow the same steps minus the VPC bits I am able to set this up without issue. What step am I missing?

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• How to statically configure DNS servers on a Cisco router when the WAN interface uses DHCP?

  - by Massimo

  I have a Cisco router (model 887VA, IOS 15.4) used to connect a LAN to the Internet via ADSL. The WAN interface uses DHCP: interface ATM0.1 point-to-point ip address dhcp I need the router to use a statically-defined DNS server for name resolution: ip name-server A.B.C.D However, the router insists on using the DNS servers supplied by the ISP via DHCP: Router#ping www.google.com Translating "www.google.com"...domain server (<ISP DNS>) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 173.194.116.208, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 44/45/48 ms How can I tell the router to ignore the ISP-supplied DNS servers and only use the statically-configured one?

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• MySQL query very slow on Amazon RDS but really fast on my laptop?

  - by Luc

  I would love to know if anybody knows why this is happening. i've just migrated over to Amazon RDS for our website and our biggest query which takes .2 seconds to execute on my macbook takes 1.3 seconds to execute on the most expensive RDS instance. Obviously i've disabled query cache (and tested this) on my local computer and both databases are exactly the same. InnoDB, both have the same indexes etc. It's costing us a fortune ($2000 per month) for the fastest RDS instance and i'm losing faith quickly. any ideas?

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• signing the web server certificate with the CA key

  - by user1064786

  I have problem in running the command below using openssl-0.9.8e and apache in Ubuntu 11.10. do you have any idea to resolve it? first i was receiving this error: No such file or directory:bss_file.c:169:fopen('openssl.cnf','rb') then i copied my modified openssl.cnf file in the /etc/ssl/ directory. now i receive an error regarding -in option: openssl ca -days 3650 –in server/requests/ciise.concordia.ca.csr –cert ./CA/ConcordiaCA.crt –keyfile ./CA/ConcordiaCA.key –out ./server/certificates/ciise.concordia.ca.crt -config openssl.cnf unknown option –in I also copied ciise.concordia.ca.csr in the upper directory, but the problem still persists I would appreciate any help:)

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• How to record a "macro" that saves web pages as PDF in OSX

  - by dwatson

  I frequently save pages as PDF from Chrome on OSX. The page is apple-P then click the PDF button and the "Save as PDF.." menu item. I always use the pre-filled filename and save in the default directory. Is it possible to save this as an automator script? If that is possible I woulld sure like to add this as a button on Chrome somewhere so I can just "save this for reading later" Thanks for any help.

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• Website crawler/spider to get site map

  - by ack__

  I need to retrieve a whole website map, in a format like : http://example.org/ http://example.org/product/ http://example.org/service/ http://example.org/about/ http://example.org/product/viewproduct/ I need it to be linked-based (no file or dir brute-force), like : parse homepage - retrieve all links - explore them - retrieve links, ... And I also need the ability to detect if a page is a "template" to not retrieve all of the "child-pages". For example if the following links are found : http://example.org/product/viewproduct?id=1 http://example.org/product/viewproduct?id=2 http://example.org/product/viewproduct?id=3 I need to get only once the http://example.org/product/viewproduct I've looked into HTTtracks, wget (with spider-option), but nothing conclusive so far. The soft/tool should be downloadable, and I prefer if it runs on Linux. It can be written in any language. Thanks

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• amazon aws, rds

  - by b0x0rz

  just need a quick info on two questions but very related. 1 if we use rds on amazon aws, what happens if some of the machines rds is running on crash? i mean what happens with the data? is it gone? 2 if we use rds on amazon aws via beanstalk, and decide to stop them is the database gone, i mean data, is it gone? thnx a lot, simple yes/no will do, but if you can give more info or a solution to mitigate these issues if any of the answers is unfavorable, that would be great.

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• Scheduling Automatic Backups for Virtual Private Web Server running CENTOS 6.3 and WHM

  - by Oliver Farrell

  I'm pretty new to administering my own VPS - but thus far am finding it quite a compelling experience. There's something quite refreshing about having complete control over everything it does. One thing that I would like to look at is a suitable backup solution (a few times a day). My current setup is as follows: I'm running a CENTOS 6.3 VPS with a single 25GB hard drive solely for the purpose of hosting websites. I'm using WHM & cPanel for administering them. I now plan on adding an additional hard disk and hooking it up to my VPS. What I'm not sure about is how I get the two disks talking and get the backup process going. I'm not a seasons SSH-er so don't really know where to start. I'm hosting with Serverlove (one of the best hosting providers I've used) and am provided with a number of unique identifiers for each hard disk so I imagine these may play a part in linking them together. I appreciate that this is a little vague (I'm clutching at straws) but any assistance is very much appreciated.

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• Can't star SSH on Ubuntu 12.10 AWS EC2

  - by Conor H

  So i've just started playing around with Ubuntu on Amazon EC2. I've just issued the following command to restart ssh but it has now "killed" ssh. sudo /etc/init.d/ssh restart I can't seem to ssh to this instance anymore. Putty just gives me "connection refused". NOTE: In this case I just restarted SSH to see the result. I didn't change any settings. This was to confirm that it was the restart command was the problem and not any configs I made. What is the correct way to restart SSH? P.S. That usually works on other Ubuntu boxes. Thanks. EDIT: It is also worth noting that when I ran that command I was taken straight back to a prompt. I didn't get any output on the console.

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• Need some help with Apache .htaccess

  - by Legend

  I am trying to setup an application that was built using the Zend framework. Let's say my subdomain is: http://subdomain.domain.com and that it points to the following: http://www.domain.com/projectdir/ The structure of the project dir is the following: application/ ... ... library/ ... ... public/ ... ... .htaccess The contents of the htaccess are: SetEnv APPLICATION_ENV production RewriteEngine On # skip existing files and folders RewriteCond %{REQUEST_FILENAME} -s [OR] RewriteCond %{REQUEST_FILENAME} -l [OR] RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^.*$ - [NC,L] # send everything to index RewriteRule ^.*$ index.php [NC,L] While this works, the child objects on the page are being directed to the domain i.e., the image URLs (and the CSS files etc.) are broken because they are being redirected to something like: http://www.domain.com/images/image.png Can someone please tell me how to fix this?

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• Strange behaviour when creating/deleting subdomains

  - by Saif Bechan

  This can be a DNS cache issue from my local machine, but I am not sure. This is what happens. I have a domain that does not use wildcard subdomains, so they have to be created. Without creating the domain, and I point my browser to test.domain.com, I get a page server not found. Now when I create the subdomain, I keep getting the same problem. Now when I first create the domain, without ever visiting the page, I get the normal page, but now when I delete the subdomain, it never goes away. Can this be a DNS cache issue, I am working on a shared environment, maybe the router has a cache but I doubt that. Can this have something to do with my setup. I have tried to use the Google DNS hosting, but this gives me the same results. I have also tried some tools that clear my local DNS cache, they were some add-ons for FireFox. Anyone have any ideas what can be the problem. Are there any tests I can do to see if there is some kind of cache between me and the server.

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• What is the best tool to draw an idea?

  - by Abhishek

  I have one twitter based idea which I have put in words. But I would like to have a prototype which contains screens and will show how exactly the homepage, other pages will look like. Basically it should explain the complete flow of the application. What is the best and easiest tool to do that?

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• AWS ELB as backend for Varnish Accelerator

  - by addisonj

  I am working on a large deployment on AWS that has high uptime requirements and variable loads throughout the day. Obviously, this is the perfect use case for ELB (Elastic Load Balancer) and autoscaling. However, we also rely on varnish for caching of API calls. My initial instinct was to structure the stack so that varnish uses ELB as a backend which in turn hits an appGroup. Varnish -> ELB -> AppServers However, according to a few sources that isn't possible as ELB constantly changes the IP address of its DNS hostname, which varnish caches on start, meaning changes to the IP won't be picked up by varnish. Reading around however, it looks like people are doing this so I am wondering what workarounds exist? Perhaps a script to reload the vcl periodically? In the case of where this is really just not a good idea, any idea of other solutions?

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• How to become a successful Host reseller or is it possible?

  - by Zack

  As a webmaster, sometimes I want to do the host reseller job, but I am not sure if this is a good choice, is there anyone has done this? I am looking for some experience sharing. Thanks.

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• Apache /folder redirect to different IP

  - by Physikal

  We have a site, www.domain.net running on xxx.xxx.xxx.1, we would like to have a folder/alias of www.domain.net/time redirect to the root of a site at xxx.xxx.xxx.2. How would you do this with apache directives? Examples would be awesome. Or guides. Thank you very much in advance.

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• Start tomcat webapp with root privileges

  - by Hagay Myr

  I built a webapp that uses libpcap (via jpcap). In order to be able to get the network interfaces list or to bind to a network interface, the application (in this case a webaap that runs from tomcat server) must be running with root privileges. During development I simply ran Eclipse with root privileges (sudo eclipse) and my webapp worked just fine with Eclipse's local tomcat server. However, when I try to deploy my webapp to the "real" tomcat server, it isn't working. I Also tried to start the tomcat6 service with sudo and changed the TOMCAT6_USER definition (defined in /etc/init.d/tomcat6) from "tomcat6" to "root" but it made no difference. What should I do to make it work?

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• How can I limit CloudFront downloads

  - by Alex Crouzen

  I'm looking to use Amazon's CloudFront to host some content in the near future. Currently, I'm keeping it very simple and I'm just uploading my content to S3 and then making a distribution available via Cloudfront. However, because I have a limited budget, I'd like to be able to limit the number of downloads or the money spent on bandwidth. As far as I can see, I can't set any quotas or budgets like you can in Google's App Engine, so I'm looking for another way of doing this. Has anyone had any experience doing this? One approach I'm thinking of is having to place a webserver with redirects in between, but that kind of defeats the simplicity of CF for me.

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