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  • Failover Issuer CAs without Clustering

    - by James Santiago
    I am attempting to setup a Certificate Authority with some failover capabilities for the issuer CAs. I have an offline root CA and am attempting to setup two subordinate CAs on our domain which will handle issuing certificates. I'm trying to determine the architecture needed for these two CAs to allow one to go down and the other to take over without the use of failover clustering, as the two are in different geographic locales. Are there documents regarding this setup?

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  • What ports to open in aws security group for aws?

    - by HarrisonJackson
    I am building the backend for a turn based gamed. My experience is mostly with a lamp stack; I've dabbled in nginx on a node side project. I just read Scaling PHP Applications by Stephen Corona of Twit Pic. He recommends an nginx server over apache. He says that his ubuntu machine has 32768-61000 ports open. On AWS do I need to modify my security to group to allow access to those ports? How do I ensure nginx is taking full advantage of this configuration?

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  • Yum installing wrong MySQL version on CentOS 5 (Amazon)

    - by Marius Stuparu
    I'm having trouble with a CentOS server running on AWS. This is CentOS 5.6 i386 from RightImage, but the problem was the same on all RightScale AMIs. When issuing the following command: yum install mysql mysql-server mysql-devel the only packages proposed by yum are MySQL-devel-community and MySQL-server-community. Which would't be a problem, except this package is old/incomplete, because it does not create a "mysqld" service, only a /etc/init.d/mysql (notice the missing d). That would't be a problem, I can start the service by doing ./etc/init.d/mysql start, and it starts OK, but there is no "mysql" (or other mysql*) command available. If I try to force a different version (yum install mysql50-server...) I get this yum error: mysql-5.0.77-4.el5_6.6.i386 from updates has depsolving problems --> mysql conflicts with MySQL-server-community (even when I don't have MySQL-server-community installed). I have tried this before and after yum update, in a fresh image. How can I install a working version of MySQL? I'm stuck on CentOS 5 because I want to install Kloxo (which does not yet support CentOS 6). I'm not interested in Webmin, and I can't afford cPanel. Thanks!

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  • Odd behavior of setting REMOTE_ADDR between Apache, Nginx, and AWS ELB

    - by Chris Drumgoole
    I have encountered a strange issue and am curious if others have encountered this as well. and if there is absolutely anything that can be done.. We have a set up where we have multiple AWS EC2 Linux machines sitting behind a ELB. The EC2 machines are running Nginx. Let's refer to these as my production machines (because they are!) I also have a Rackspace cloud machine running apache. Completely separate. Let's call this the test server. Now, there's a ISP here in Singapore that seems to be funneling traffic through a transparent proxy or something, and when you do a IP check, the IP often changes. In fact, I noticed that when I check on http://www.whatismyip.com, the ip seems to be stable (doesn't change) across refreshes. But, http://www.whatismyipaddress.com, on refreshing, the IP changes! (so my ISP is doing weird stuff). Now, back to my set up, I noticed a couple of things: Checking the REMOTE_ADDR variable from PHP when connecting to a single Nginx production machine (bypassing the load balancer), is set to the stable IP that does change. Checking the REMOTE_ADDR variable from PHP when connecting to the test Apache server, it is set to the IP that does change on refreshes. Checking the headers when connecting to the nginx production machines through the ELB, the ELB sets the HTTP_X_FORWARDED_FOR to the stable IP. Has anyone experienced this odd behavior? Is there nothing that I can do? And which IP should I "trust"? (the one Apache gives, or the one ELB and Nginx gives?) Thanks! Chris

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  • How do I set up DNS with nic.io to point to an AWS EC2 server?

    - by Chad Johnson
    I purchased a domain one week ago via nic.io. I have elected to provide my own DNS [because they provided no other option]. I'm trying to point my .io domain at my EC2 server instance. I've allocated an elastic IP and associated it with the instance. I can SSH into the instance and access point 80 via the IP address just fine. The IP is 54.235.201.241. nic.io support said the following: "You have selected to provide your own DNS and therefore if there is an issue with the set-up of the name servers you will need to contact your DNS provider." So, I created a Hosted Zone via Route 53 in AWS. This created NS and SOA records. I then set the Primary and Secondary servers at nic.io's domain admin page to the SOA record domains. Additionally, I set the optional servers to the NS domains. I did this two days ago, and I can't access the server via the domain. I ran a DNS check here...still not sure what I need to do: http://mydnscheck.com/?domain=chadjohnson.io&ns1=&ns2=&ns3=&ns4=&ns5=&ns6=. I have no idea what I'm supposed to do. Does anyone have any ideas?

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  • Windows Server 2012 VPN Server on AWS VPC EC2 Instance

    - by abran
    I'd like to use window server 2012 VPN on a AWS VPC EC2 instance. The VPC has one public subnet and the EC2 instance has one network adapter. I've taken the following steps, but have been unsuccessful; am I missing a step or configuration? Thanks. Configured an elastic IP for the VPC Enabled protocols 47, 50, & 51 Added the RRAS role to the (EC2 instance) server Configured the RRAS for vpn only. Note: I'm able to RDP to the EC2 instance, but not able to ping the external IP.

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  • Intermittent 404 on select assets, LAMP stack

    - by Tom Lagier
    We have a LAMP stack WordPress server that is serving most assets correctly. However, one plugin's CSS file and several images are returning soft 404s roughly 20% of the time. I can't find any reference to the 404 in the access logs, but the browser is definitely receiving a 404 response from somewhere (WordPress, I would assume). When I use an alias URL that does not match the site URL but does resolve to the asset path, the resource loads correctly 100% of the time. However, using the site url only resolves for the select, problematic assets 20% of the time. You can test one of the problematic assets here: http://www.mreco.org/wp-content/uploads/2014/05/zero-cost.jpg However the alias link always resolves correctly: http://mr-eco.wordpress.promocampaigns.com/wp-content/uploads/2014/05/zero-cost.jpg Stranger, if I attempt to access outdated content that definitely does not exist on the server, at the live URL it returns the content roughly 50% of the time. Using the alias link, it 404s 100% of the time - the correct behavior. Error log and PHP error log are clean. A sample access log (pulled from grep 'zero-cost.jpg' /var/log/httpd/mr-eco-access_log) from several refreshes of the live direct link (where I am not seeing any 404's): 10.166.202.202 - - [28/May/2014:20:27:41 +0000] "GET /wp-content/uploads/2014/05/zero-cost.jpg HTTP/1.1" 304 - 10.166.202.202 - - [28/May/2014:20:27:42 +0000] "GET /wp-content/uploads/2014/05/zero-cost.jpg HTTP/1.1" 304 - 10.166.202.202 - - [28/May/2014:20:27:43 +0000] "GET /wp-content/uploads/2014/05/zero-cost.jpg HTTP/1.1" 304 - 10.166.202.202 - - [28/May/2014:20:27:43 +0000] "GET /wp-content/uploads/2014/05/zero-cost.jpg HTTP/1.1" 304 - 10.176.201.37 - - [28/May/2014:20:27:56 +0000] "GET /wp-content/uploads/2014/05/zero-cost.jpg HTTP/1.1" 200 57027 Chrome's dev tools list the following network activity before displaying 404 page content: zero-cost.jpg /wp-content/uploads/2014/05 GET 404 Not Found text/html Other 15.9?KB 73.2?KB 953?ms 947?ms My Apache configuration is standard, I've listed the virtual host entry and .htaccess file below. I can provide other parts of Apache config if necessary. Virtual host: <VirtualHost *:80> DocumentRoot /var/www/public_html/mr-eco.wordpress.promocampaigns.com ServerName www.mreco.org ServerAlias mreco.org mr-eco.wordpress.promocampaigns.com ErrorLog logs/mr-eco-error_log CustomLog logs/mr-eco-access_log common <Directory /var/www/public_html/mr-eco.wordpress.promocampaigns.com> AllowOverride All SetOutputFilter DEFLATE </Directory> </VirtualHost> .htaccess: # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress I have checked for multiple A records and can confirm that there is a single A record pointing at the domain: ;; ANSWER SECTION: mreco.org. 60 IN A 50.18.58.174 I'm fairly new to systems administration, and at a complete loss as to what could cause this. In the past, inconsistently 404ing assets have been because of out-of-sync instances behind a load balancer. In this case, it is a single instance behind the load balancer. Because of the inconsistency, it feels like a caching issue. We don't make use of Apache caching, and as far as I know WordPress should not be caching either. What I've done so far: Reset WordPress permalinks Disabled WordPress plugins Re-generated WordPress .htaccess file Swapped ServerName and ServerAlias directives Cleared browser cache Confirmed disk location of resources Checked PHP, access, and error logs Confirmed correct DNS setup (can post if necessary) I'm at a total loss. Thanks for helping me out!

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  • WSS and CAG , _layout pages break

    - by Mike
    Alright, I've searched everywhere and I cannot find the answer, due to the rarity of our setup. WSS 3.0/IIS 6.0/WinServer 2003 We have a sharepoint site that is in good shape, almost. Its TCP and SSL port are uncommon and need to be rerouted to work properly. This is where the Citrix Access Gateway (CAG) comes in play. It will redirect any request from URL (something.something.com) to the correct SSL port on the correct server. My AAM is configured to Default something.something.com and nothing else, since the CAG will provide the port. We use FBA, and require SSL. This works perfectly for everything that is safe or that is anything that an end user can see, but if I try to add a webpart, it errors out. Whereas if I add it internally, or bypass the CAG the webpart adds fine. The same goes for most of the _layouts pages, like _layouts/new.aspx. If I add a Link List/Doc library on the something.something.com, it errors out (Page cannot be displayed) and the page won't display, but if I try it with an internal address it will work fine. I found that if I am trying to add something or doing anything administrative, the site will navigate to the pages that I need to go to fine, but when i actually ADD something the URL will change from something.something.com to something.something.com:SSLport, thus erroring out the site. The URL with the SSL port shows on the Site URL when navigating to Site Settings. However, if I bypass the CAG, using the internal address the _layouts page works like a charm and i can add anything. All the CAG does is reroute a DNS request to the provided server and port. I've tried reextending the application, no luck same thing. I've tried changing the AAM to hide the port and the CAG rejects it. I've tried to recreate a new webapp/site collection with the same rules on the CAG, same thing occurs. Correct me if I'm wrong, and please provide me with some feedback and answers. Any suggestions would be very appreciated. Is it the CAG or the Alternate Access Mappings (AAM)?

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  • Throttle connections to web service if load gets too high?

    - by Joseph Turian
    I have a web site that communicates via XMLRPC with an XMLRPC server web service. (The web service is written in Python using xmlrpclib.) I believe that xmlrpclib will block while it is handling one request. So if there are three users with an xmlrpclib request ahead of you, your response takes four times as long. How do I handle it if I receive too many XMLRPC requests and the web service gets bogged down and has slow response time? If I am getting slashdotted, my preferred behavior is that the first users get good response times and everyone else is told to come back later. I think this is superior to giving everyone terrible response times. How do I create this behavior? Is this called load-balancing? I am not actually balancing though, until I have multiple servers.

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  • Windows 7 - Runs in safe mode, crashes in "normal" mode

    - by JonHopkins
    A couple of days ago I came back from a meeting to find my laptop had locked up. Power lights still on but the screen was blank (by which I mean black, though still "backlit" so not dead). Didn't respond to anything. I rebooted and it powered up fine and I got to the login screen. I logged in and it seemed to be going fine for about 30 seconds (gmail notifier and pidgin popped up) then the same thing happened - black screen. If I boot into Safe Mode it's all fine, no problems. I've tried removing everything from the startup folders (All users and my login), everything from the Run section of the registry (Local Machine and my login) and I've disabled every service which doesn't run in Safe Mode (assuming anything running in safe mode is OK) but the problem still exists. I've scanned the memory for errors (all fine). Any thoughts on what else I could try?

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  • Copying 500GB Data to EC2 Instances Local Drive

    - by iCode
    Please do not ask me why (they made me) but I have to copy 500GB data to the local drive every 200 node/instances that I am launching in EC2. For reasons beyond this post, this data must by on the local drive and not EBS drive so I can not benefit from snapshots. What is the fastest way that I can manage to this? Copying from S3 to each node takes a long time. I trying to attached an EBS volume to every node with the data and then copy the data from EBS to the local drive but that also take a long time (several hours_) Now, I am also thinking to use bit torrent but not sure how well it is going to be. What is the best way to copy 500GB of static data to each local drive of 200 ec2 instances? The 500Gb of data is composed several hundred of file with varying size but the biggest file is 20GB.

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  • Amazon blocked port 80 and 443 on my instance

    - by Burak
    Amazon AWS sent me an email about warning that my instance have been behaving like Phising that is against AWS Customer Agreement. And they noticed that they blocked port 80 and 443 which are for HTTP and HTTPS respectively. Google Safe Browsing also reported that some code injection was made to one of my websites. After a cleaning, Google stopped blocking my website displaying in the search result. So, how can I unblock my ports?

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  • Is it safe to use S3 over HTTP from EC2, as opposed to HTTPS

    - by Marc
    I found that there is a fair deal of overhead when uploading a lot of small files to S3. Some of this overhead comes from SSL itself. How safe is it to talk to S3 without SSL when running in EC2? From the awesome comments below, here are some clarifications: this is NOT a question about HTTPS versus HTTP or the sensitivity of my data. I'm trying to get a feeling for the networking and protocol particularities of EC2 and S3. For example Are we guaranteed to be passing through only the AWS network when communicating from EC2 to S3 Can other AWS users (apart from staff) sniff my communications between EC2 and S3 Is authentication on their api done on every call, and thus credentials are passed on every call? Or is there some kind of authenticated session. I am using the jets3t lib. Feedback from people with some AWS experience would be appreciated. Thanks Marc

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  • How to access my local host server from internet

    - by rahul.p.33
    How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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  • How to access my local host server from internet

    - by rahul.p.33
    How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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  • How can I automatically cycle a new image in an AWS Auto Scaling Group?

    - by JustinY
    I have a web application setup with a load balancer and auto scaling group to manage scaling. The source code is in a git repository so I don't have to update the images when the code changes, but occasionally the environment changes so we create a new image. Then that image needs to be cycled into the auto scaling group. Is there a way to cycle the images automatically? Right now I schedule a scale up and scale down action which gets rid of the old instances.

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  • Drive Mapped On Amazon EC2 Instance Startup Disconnected After Logon

    - by jsn
    I am launching an Amazon EC2 instance (Windows Server 2012), and on startup (though User Data field), it runs this powershell script: <powershell> NET CONFIG SERVER /AUTODISCONNECT:-1 # clear all prior connections net use * /delete /y > C:\delLog.txt 2>&1 # mount new drive net use R: \\dbHost\share /user:username pass /persistent:yes > C:\useLog.txt 2>&1 ipconfig /all > C:\ipLog.txt </powershell> When it launches and I connect to it through RDP, it shows in explorer "Diconnected Network Drive (R:). If I double click it, error message displays "R:\ is not accesible. Access id denied". Normally, it would ask me for credentials to reconnect. I need for this drive to be connected through the duration of the instance. delLog.txt contents: You have these remote connections: T: \\dbHost\share Continuing will cancel the connections. The command completed successfully. useLog.txt contents: The command completed successfully. ipLog.txt contents as expected. The net use commands works fine by itself, it connects. Anyone have any idea what could be wrong? There is only one account on these machines - Administrator. It is a samba share to a Linux server on a private network.

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  • How do I make an exe into a service on Windows?

    - by user3677994
    I recently made an application that has multiple parts. One of the parts is a networking tool - it always starts with the OS, and it never displays any sort of message. It does, however, start an incredibly irritating console, which is impossible to get rid of without closing the program itself (please just accept this one as given). I have decided to work around this problem by starting the program (it's a *.exe) as a service, thus stopping it from showing up at all. As the application will be distributed to various computers (hence the need for a networking tool in the first place). I need a way to make this program install as a service (so, I don't really want answers that tell me to go through a series of menus on the Control Panel or download a 3rd-party application that has to stay on whichever computer the service will run on). How can I do this?

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  • Is there an equivalent command for 'init.d/networking restart' in OS X

    - by l0c0b0x
    From time to time, I've encountered issues with OS X clients' network connections (Wired and Wireless, Leopard/Snow Leopard) where nothing will fix the issue, until you reboot. Is there a particular 'network service/process' I should be watching out for? I was thinking it would be useful to know of a command that will reset a 'network connection' type service/process (same as running a sudo /etc/init.d/networking restart). Thanks!

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  • Configuring DNS on my Amazon AWS [closed]

    - by Ricardo
    So, I have an AWS EC2, and I need to configure a dns server, I have a Ubuntu 11.04 and webmin is configured, I have a domin point to my ip. So, know I need to redirect my domain to my ip and configure BIND dns server? What configuration I have to do to redirect my domain account to my ip and create my own dns server? I see some videos on youtube but, i don´t know what is the best of for me. Thank´s for any help.

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  • Windows 2008 R2 AWS CloudFormation Elastic beanstalk configuration

    - by Webmonger
    I'm looking for some configuration advice. I have a need for a load balanced windows environment with shared media across all instances that are hosting the app. The best explanation i can give is that there will be multiple Windows 2008 server with IIS hosting the app going through an ELB to load balance. Users must be able to upload content (images, video etc...) to the site that will be hosted. When a user uploads media it needs to be kept on a shared location so all windows IIS instances can access the files, I can't host the files on S3 because of the app architecture so they need to be in a place where all IIS server will have access. In addition I need to run an update each IIS server instance that updates a local memory cache when SQL data is updated. I was thinking of a configuration like this: [ELB] - [Win 2008 IIS (multiple servers)] - [Win 2008 File & SQL Server(possibly RDS?)] Does this configuration make sense? If not could you provide an idea of how I should configure it. Thanks in advance

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  • How can I manage AWS VPC ssh access accounts and keys across multiple instances?

    - by deitch
    I am setting up a standard AWS VPC structure: a public subnet some private subnets, hosts on each, ELB, etc. Operational network access will be via either an ssh bastion host or an openvpn instance. Once on the network (bastion or openvpn), admins use ssh to access the individual instances. From what I can tell all of the docs seem to depend on a single user with sudo rights and a single public ssh key. But is that really best practice? Isn't it much better to have each user access each host under their own name? So I can deploy accounts and ssh public keys to each server, but that rapidly gets unmanageable. How do people recommend managing user accounts? I've looked at: IAM: It doesn't like like IAM has a method for automatically distributing accounts and ssh keys to VPC instances. IAM via LDAP: IAM doesn't have an LDAP API LDAP: set up my own LDAP servers (redundant, of course). Bit of a pain to manage, still better than managing on every host, especially as we grow. Shared ssh key: rely on the VPN/bastion to track user activities. I don't love it, but... What do people recommend? NOTE: I moved this over from accidentally posting in StackOverflow.

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  • Terminal Server Logging Software

    - by Jacob
    I have recently been trying to find software to monitor users' activities on our terminal server. After a quick search, I found http://www.softactivity.com/tsm.aspx. Has anyone ever heard of or used this program? I just want to make sure this company is legit and the software runs efficiently. The server I would be installing it on has about 40-50 users on it. I am hoping the software has some type of setting to only monitor certain users, because i would hate to waste resources. If this is not good software, does anyone have any recommendations?

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