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• Two threads in a rails initializer file seems to not run them properly

  - by Luccas

  Initially I was using one thread to listen a queue from amazon and works perfectly. aws.rb Thread.new do queue1 = AWS::SQS::Queue.new(SQSADDR['my_queue']) queue1.poll do |msg| ... but now I appended another thread to listen another queue: ... Thread.new do queue2 = AWS::SQS::Queue.new(SQSADDR['my_another_queue']) queue2.poll do |msg| ... and now it seems to not work. Only the last one receives response... I have to join the threads? I can't understand What is going on?

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• Public DNS Server fails on Windows Amazon EC2

  - by Adroidist

  I have started a new Windows server instance on Amazon EC2. The security group has the following rules: Ports Protocol Source 22 tcp 0.0.0.0/0 80 tcp 0.0.0.0/0 443 tcp 0.0.0.0/0 3389 tcp 0.0.0.0/0 53 udp 0.0.0.0/0 -1 icmp 0.0.0.0/0 I am able to ping the public DNS server of the machine and i can connect to it using Windows Remote Desktop connection. However, when i put in my web browser the public DNS server, it fails to connect. Morever, I used filezilla and putty (and in both I loaded the private key .pem) but i receive connection timed out. I disabled the firewall on both my pc and the instance (which I entered using Remote desktop connection). Can you please tell me what I am missing?

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• AWS elastic load balancer basic issues

  - by Jones

  I have an array of EC2 t1.micro instances behind a load balancer and each node can manage ~100 concurrent users before it starts to get wonky. i would THINK if i have 2 such instances it would allow my network to manage 200 concurrent users... apparently not. When i really slam the server (blitz.io) with a full 275 concurrents, it behaves the same as if there is just one node. it goes from 400ms response time to 1.6 seconds (which for a single t1.micro is expected, but not 6). So the question is, am i simply not doing something right or is ELB effectively worthless? Anyone have some wisdom on this? AB logs: Loadbalancer (3x m1.medium) Document Path: /ping/index.html Document Length: 185 bytes Concurrency Level: 100 Time taken for tests: 11.668 seconds Complete requests: 50000 Failed requests: 0 Write errors: 0 Non-2xx responses: 50001 Total transferred: 19850397 bytes HTML transferred: 9250185 bytes Requests per second: 4285.10 [#/sec] (mean) Time per request: 23.337 [ms] (mean) Time per request: 0.233 [ms] (mean, across all concurrent requests) Transfer rate: 1661.35 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 1 2 4.3 2 63 Processing: 2 21 15.1 19 302 Waiting: 2 21 15.0 19 261 Total: 3 23 15.7 21 304 Single instance (1x m1.medium direct connection) Document Path: /ping/index.html Document Length: 185 bytes Concurrency Level: 100 Time taken for tests: 9.597 seconds Complete requests: 50000 Failed requests: 0 Write errors: 0 Non-2xx responses: 50001 Total transferred: 19850397 bytes HTML transferred: 9250185 bytes Requests per second: 5210.19 [#/sec] (mean) Time per request: 19.193 [ms] (mean) Time per request: 0.192 [ms] (mean, across all concurrent requests) Transfer rate: 2020.01 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 1 9 128.9 3 3010 Processing: 1 10 8.7 9 141 Waiting: 1 9 8.7 8 140 Total: 2 19 129.0 12 3020

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• Does Cloud Computing COST a premium? (or is it competitive with shared/managed/co-location)

  - by Pete Alvin

  Since cloud solutions (Google AppEngine, Amazon, etc.) do more for you, at the end of the day do they cost significantly more than doing it "yourself" with co-location hosting, etc. Not just starting out, but when the website is mature and getting many page views a day.

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• CPU Utilization LAMP stack

  - by Max

  We've got an ec2 m2.4xlarge running Magento (centos 5.6, httpd 2.2, php 5.2.17 with eaccelerator 0.9.5.3, mysql 5.1.52). Right now we're getting a large traffic spike, and our top looks like this: top - 09:41:29 up 31 days, 1:12, 1 user, load average: 120.01, 129.03, 113.23 Tasks: 1190 total, 18 running, 1172 sleeping, 0 stopped, 0 zombie Cpu(s): 97.3%us, 1.8%sy, 0.0%ni, 0.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.4%st Mem: 71687720k total, 36898928k used, 34788792k free, 49692k buffers Swap: 880737784k total, 0k used, 880737784k free, 1586524k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2433 mysql 15 0 23.6g 4.5g 7112 S 564.7 6.6 33607:34 mysqld 24046 apache 16 0 411m 65m 28m S 26.4 0.1 0:09.05 httpd 24360 apache 15 0 410m 60m 25m S 26.4 0.1 0:03.65 httpd 24993 apache 16 0 410m 57m 21m S 26.1 0.1 0:01.41 httpd 24838 apache 16 0 428m 74m 20m S 24.8 0.1 0:02.37 httpd 24359 apache 16 0 411m 62m 26m R 22.3 0.1 0:08.12 httpd 23850 apache 15 0 411m 64m 27m S 16.8 0.1 0:14.54 httpd 25229 apache 16 0 404m 46m 17m R 10.2 0.1 0:00.71 httpd 14594 apache 15 0 404m 63m 34m S 8.4 0.1 1:10.26 httpd 24955 apache 16 0 404m 50m 21m R 8.4 0.1 0:01.66 httpd 24313 apache 16 0 399m 46m 22m R 8.1 0.1 0:02.30 httpd 25119 apache 16 0 411m 59m 23m S 6.8 0.1 0:01.45 httpd Questions: Would giving msyqld more memory help it cache queries and react faster? If so, how? Other than splitting mysql and php to separate servers (which we're about to do) is there anything else we could/should be doing? Thanks! UPDATE: Here's our my.cnf along with the output of mysqltuner. It looks like a cache problem. Thanks again! # cat /etc/my.cnf [client] port = **** socket = /var/lib/mysql/mysql.sock [mysqld] datadir=/mnt/persistent/mysql port=**** socket=/var/lib/mysql/mysql.sock key_buffer = 512M max_allowed_packet = 64M table_cache = 1024 sort_buffer_size = 8M read_buffer_size = 4M read_rnd_buffer_size = 2M myisam_sort_buffer_size = 64M thread_cache_size = 128M tmp_table_size = 128M join_buffer_size = 1M query_cache_limit = 2M query_cache_size= 64M query_cache_type = 1 max_connections = 1000 thread_stack = 128K thread_concurrency = 48 log-bin=mysql-bin server-id = 1 wait_timeout = 300 innodb_data_home_dir = /mnt/persistent/mysql/ innodb_data_file_path = ibdata1:10M:autoextend innodb_buffer_pool_size = 20G innodb_additional_mem_pool_size = 20M innodb_log_file_size = 64M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 innodb_thread_concurrency = 48 ft_min_word_len=3 [myisamchk] ft_min_word_len=3 key_buffer = 128M sort_buffer_size = 128M read_buffer = 2M write_buffer = 2M # ./mysqltuner.pl >> MySQLTuner 1.2.0 - Major Hayden <[email protected]> >> Bug reports, feature requests, and downloads at http://mysqltuner.com/ >> Run with '--help' for additional options and output filtering -------- General Statistics -------------------------------------------------- [--] Skipped version check for MySQLTuner script [OK] Currently running supported MySQL version 5.1.52-log [OK] Operating on 64-bit architecture -------- Storage Engine Statistics ------------------------------------------- [--] Status: +Archive -BDB +Federated +InnoDB -ISAM -NDBCluster [--] Data in MyISAM tables: 2G (Tables: 26) [--] Data in InnoDB tables: 749M (Tables: 250) [!!] Total fragmented tables: 262 -------- Security Recommendations ------------------------------------------- -------- Performance Metrics ------------------------------------------------- [--] Up for: 31d 2h 30m 38s (680M q [253.371 qps], 2M conn, TX: 4825B, RX: 236B) [--] Reads / Writes: 89% / 11% [--] Total buffers: 20.6G global + 15.1M per thread (1000 max threads) [OK] Maximum possible memory usage: 35.4G (51% of installed RAM) [OK] Slow queries: 0% (35K/680M) [OK] Highest usage of available connections: 53% (537/1000) [OK] Key buffer size / total MyISAM indexes: 512.0M/457.2M [OK] Key buffer hit rate: 100.0% (9B cached / 264K reads) [OK] Query cache efficiency: 42.3% (260M cached / 615M selects) [!!] Query cache prunes per day: 4384652 [OK] Sorts requiring temporary tables: 0% (1K temp sorts / 38M sorts) [!!] Joins performed without indexes: 100404 [OK] Temporary tables created on disk: 17% (7M on disk / 45M total) [OK] Thread cache hit rate: 99% (537 created / 2M connections) [!!] Table cache hit rate: 0% (1K open / 946K opened) [OK] Open file limit used: 9% (453/5K) [OK] Table locks acquired immediately: 99% (758M immediate / 758M locks) [OK] InnoDB data size / buffer pool: 749.3M/20.0G -------- Recommendations ----------------------------------------------------- General recommendations: Run OPTIMIZE TABLE to defragment tables for better performance Enable the slow query log to troubleshoot bad queries Adjust your join queries to always utilize indexes Increase table_cache gradually to avoid file descriptor limits Variables to adjust: query_cache_size (> 64M) join_buffer_size (> 1.0M, or always use indexes with joins) table_cache (> 1024)

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• What settings need to be changed to allow EC2 instances to use Amazon's Route 53 for DNS?

  - by ks78

  I have a number of Amazon EC2 instances, all running Ubuntu, which I'd like to configure to use Amazon's Route 53. I setup a script, following Shlomo Swidler's article, but ran into script-related issues, which were answered here. Now, I have the script working, but my instances are still not able to access Route 53's DNS. By this I mean, they are not able to resolve hostnames to IP addresses. My instances are currently configured with the DNS server IP address Amazon pushes out to them by default, does that need to be changed when using Route 53? I'm also IP-restricting my instances using the Security Groups. Could that be the problem? Is there a certain IP address or port I should open to allow communication with Route 53? It seems that DNS requests should be originating from my instances so the Security Groups shouldn't be an issue, but I've been wrong before. If anyone has any ideas, I'd really appreciate it.

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• Can't authorize a server for Amazon RDS

  - by Parris

  We are attempting to slowly migrate a website over to AWS among other things. We decided the first thing to move was the database. We have some dedicated server with a different hosting provider. We only have one IP. I am having trouble authorizing the ip so that the old server can connect to RDS. It simply hangs for a while while using the mysql cli, then responds: ERROR 2003 (HY000): Can't connect to MySQL server on 'db.address.us-east-1.rds.amazonaws.com' (110) It did work on my laptop though. I am not quite sure what is wrong. I have a feeling I don't quite understand CIDR/IP. I simply took the ip address and tacked on /32 at the end. Then I gleaned some information that it also has to do with subnet mask? ifconfig reports: 255.255.255.0 I found a calculator and the IP changed a bit and had /24 at the end. That still didn't work. One other note... perhaps i dont know enough about the differences between OS. The hosting provider is using centOS, while our development machines are all ubuntu. Any insight would be extremely helpful! THANKS :)

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• Allowing a private subnet EC2 access to the internet - Amazon AWS

  - by Xavier Hutchinson

  I have a VPC "VPC with Public and Private Subnets" created via the VPC wizard which should include NAT for the private subnet VPCs however it's not working. They are unable to browse the internet, resolve internet names and ping internet IPs. This is a stock standard conf, I am very sure of that so I am unsure why it's not working. Perhaps there was something additional I am supposed to do that I don't know about? Thank you, Xavier.

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• How can I create multiple identical AWS EC2 server instances with large amounts of persistent data?

  - by mojones

  I have a CPU-intensive data-processing application that I want to run across many (~100,000) input files. The application needs a large (~20GB) data file in order to run. What I would like to do is create an EC2 machine image that has my application and associated data files installed boot up a large number (e.g. 100) of instances of this image split my input files up into 100 batches and send one batch to be processed on each instance I am having trouble figuring out the best way to ensure that each instance has access to the large data file. The data file is too big to fit on the root filesystem of an AMI. I could use Block Storage, but a given Block Storage volume can only be attached to a single instance, so I would need 100 clones. Is there some way to create a custom image that has more space on the root filsystem so that I can include my large data file? Or is there a better way to tackle this problem?

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• Determine Server specs for a Rails with MySQL database (on AWS)

  - by Rogier

  I developed a intranet applications with Rails (3.2) for one of my customers. There will be around 30-40 employees working with it. Backend is MySQL (5). What would be the best way to determine the servers specs needed? Given: max. load will be roughly 2400 (40*60) HTTP requests (mixed GET / POST) per hour. 15% of these calls are JSON calls (iOS) avg request will make between 5-10 database calls 500-800 SQL INSERTS per day webpages are fairly simple (no images, just text) avg webpage is 15 request (css/js/etc) and total size is 35-45 KB More specific, since they need access from multiple geographical locations, we are thinking of running a bitnami Ruby stack in the AWS cloud (uptime is important). Any thoughts on a AWS Instance (small/medium) and Utilization (light/medium/heavy) ? Thanks!

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• How to disable System service from listening on port 80 in Windows Server 2003

  - by Miky D

  I'm trying to install a service on a Windows Server 2003 machine which is supposed to listen on port 80 but it fails to start because some other service is already listening on that port. So far I've disabled the IIS Admin service and the HTTP SSL service but no luck. When I run netstat -a -n -o | findstr 0.0:80 it gives me the process id 4 as the culprit, but when I look at the running processes that process id points to the "System" process. What can I do to get the System process to stop listening on port 80 and get my service to listen instead?

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• Amazon EC2 tools for Debian?

  - by Jonik

  What is the recommended way of getting command-line Amazon EC2 tools on Debian? So, basically the same as this question, but for EC2 instead of S3. Ubuntu has ec2-ami-tools and ec2-api-tools, but I couldn't find equivalent packages for Debian. A blog post titled "Install EC2 AMI & API tools in Debian" talks about installing Amazon's packages outside package management, but that seems a little clumsy.

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• Windows Service SearchIndexer.exe Crashes on Indexing

  - by Josh Jay

  Relevant Specs: Windows 7 Professional 64-bit SP1 Outlook 2010 Version 14.0.7116.5000 (32-bit) Original Symptom: In outlook, I attempted to search for an email but nothing ever returned and the indicator kept going like it was searching. Attempted Resolutions: I investigated the search options and with some research noticed the Windows Service "Windows Search" (SearchIndexer.exe) was not running. I attempted to start it but I receive this error message: "Windows could not start the Windows Search service on Local Computer. Error 1067: The process terminated unexpectedly." The Event Viewer gives this error entry: Log Name: Application Source: Application Error Date: 6/3/2014 11:02:05 AM Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: ***REMOVED FOR POST*** Description: Faulting application name: SearchIndexer.exe, version: 7.0.7601.17610, time stamp: 0x4dc0d019 Faulting module name: KERNELBASE.dll, version: 6.1.7601.18229, time stamp: 0x51fb1677 Exception code: 0xc0000005 Fault offset: 0x000000000000940d Faulting process id: 0x6a0 Faulting application start time: 0x01cf7f3cc83757c6 Faulting application path: C:\Windows\system32\SearchIndexer.exe Faulting module path: C:\Windows\system32\KERNELBASE.dll Report Id: 06424160-eb30-11e3-9555-843a4b07b336 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Level>2</Level> <Task>100</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2014-06-03T15:02:05.000000000Z" /> <EventRecordID>602923</EventRecordID> <Channel>Application</Channel> <Computer>M6700-12011.ncaa.org</Computer> <Security /> </System> <EventData> <Data>SearchIndexer.exe</Data> <Data>7.0.7601.17610</Data> <Data>4dc0d019</Data> <Data>KERNELBASE.dll</Data> <Data>6.1.7601.18229</Data> <Data>51fb1677</Data> <Data>c0000005</Data> <Data>000000000000940d</Data> <Data>6a0</Data> <Data>01cf7f3cc83757c6</Data> <Data>C:\Windows\system32\SearchIndexer.exe</Data> <Data>C:\Windows\system32\KERNELBASE.dll</Data> <Data>06424160-eb30-11e3-9555-843a4b07b336</Data> </EventData> </Event> The regular windows search (from start menu) works fine, and if I reboot the machine the service starts up OK but as soon as it kicks off when I let the machine idle for long enough it crashes (same Event Viewer entry). We also tried the Microsoft Utility to no avail. Has anyone seen this issue before?

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• log4j-1.2.8.jar gets deleted from the path when a Webservice is created from Eclipse

  - by Seema

  When I try to create a Webservice from Eclipse, the log4j-1.2.8.jar which is configured in the project's build path just gets deleted, and when I try to invoke the Webservice it gives error as below: 2014-06-05 11:47:48,742 ERROR ServiceRequester:55 - RemoteException 2014-06-05 11:47:48,742 ERROR ServiceRequester:56 - ------ AxisFault faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException faultSubcode: faultString: java.lang.NoClassDefFoundError: org/apache/log4j/Logger; nested ex ception is: java.lang.NoClassDefFoundError: org/apache/log4j/Logger faultActor: faultNode: faultDetail: {http://xml.apache.org/axis/}hostname:INPUSCPC07719 java.lang.NoClassDefFoundError: org/apache/log4j/Logger; nested exception is: java.lang.NoClassDefFoundError: org/apache/log4j/Logger We also tried to place this jar to a different path than where the project is located, but it still delete this jar from that path too. Can anyone help in this?

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• Why is awstats reporting my static IP instead of Domain Name?

  - by Austin

  In AWStats under: "Links from an external page (other web sites except search engines)" it has generated a list of pages that had linked to my page. I see pages like: Bing, YouTube, HotFrog, etc.. However, there are many internal links within the pages. Towards the bottom it is reporting as followed: http://72.249.150.9/distributors.php 5 2.4 % http://72.249.150.9/contact/ 5 2.4 % http://72.249.150.9/catalog/ 4 1.9 % http://72.249.150.9/flex-point-hockey-grip.php 5 2.4 % http://72.249.150.9/sticky-grip-foam.php 5 2.4 % http://72.249.150.9/video.php 10 4.8 % http://72.249.150.9/dealers/ 5 2.4 % http://72.249.150.9/feedback/ 5 2.4 % http://72.249.150.9/products.php 10 4.8 % http://72.249.150.9/ergo-hockey-grip.php 5 2.4 %

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• How do you get AWS VPC EC2 instances to be able to see the AWS APIs?

  - by Peter Mounce

  We're spinning up infrastructure inside of an AWS VPC via CloudFormation. We're using auto-scaling groups to bring up VPC-EC2 instances (so, we don't bring up instances directly; ASGs manage that). Inside of a PVC, EC2 instances only have a private IP; they cannot see the outside world without further work. When these instances spin up, we have some bootstrap tasks that require talking to the various AWS APIs. We also have some ongoing tasks that require AWS API traffic. How are you tackling this apparent chicken-egg problem? We've read about: NAT instances - but don't like this so much because it's another layer to our stack. assigning elastic-IPs to each VPC instance that needs to talk - but a) they all do, and b) since we're using ASGs, we don't know which instances to assign EIPs to at provision-time, and c) we'd need to set up something to monitor those ASGs and assign EIPs when instances are terminated and replaced spinning up an instance (actually, a load-balanced pair, probably spanning AZs) to act as an AWS-API proxy for all API traffic I guess I'm wondering whether there's some kind of back-door we can open that allows our VPC EC2 instances access to the AWS API endpoints, but nothing else, for cheap-complexity setup, that doesn't add another network-hop layer to our infrastructure for serving requests.

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• Create an AWS AMI for Ubuntu with GUI which automatically launches web browser

  - by Rory MacDonald

  I've got an ubuntu AMI setup with ubuntu desktop installed and Chrome installed and set to boot on load (via the startup programmes menu within the ubuntu desktop) I've created an image of this AMI, but any time I launch a new instance running this, the Ubuntu GUI doesn't seem to load, until I SSH into the machine, enable VNC and then connect via Chicken VNC to the machine. At that point, the desktop appears to load + starts the browser. I really need the machine to boot and the browser to load without having to VNC into the machine.. Any help would be appreciated.

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• Windows 2008 R2 RDS - Double Login

  - by colo_joe

  Issue: Double logins when connecting to RemoteApps or Remote Desktop Environment: Gateway = 1 server 2008 R2 - Roles = Gateway, Session Broker, Connection Mgr, Session Host Configuration server Session hosts = 2 servers 2008 R2 - Roles = App Manager and Session host configuration Testing: I can get to the url http://RDS.domain.com/rdweb - I get prompted for authentication (1) Pass authentication, get list of remote apps. Click on remoteapps or remote desktop, get prompted for authentication again (2). Pass authentication, I get access to app or RDP. Done so far. On session host Signed rdp files with cert. Added the following to the custom RDP settings: Authenticaton level:i:0 = If server authentication fails, connect to the computer without warning (Connect and don’t warn me). prompt for credentials on client:i:1 = RDC will prompt for credentials when connecting to a server that does not support server authentication. enablecredsspsupport:i:1 = RDP will use CredSSP, if the operating system supports CredSSP. Edited the javascript file as found in http://support.microsoft.com/kb/977507 Added Connection ID, and added Web Access server to TS Web Access Computers group on the Session host servers, and Signed apps as found in hxxp://blogs.msdn.com/b/rds/archive/2009/08/11/introducing-web-single-sign-on-for-remoteapp-and-desktop-connections.aspx Note: This double login happens internally and externally.

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• How to Setting up Amazon EC2 with own OS and DB ?

  - by Spencer Lim

  i got my own version of OS and DB which are window server 2008 Hyper-V R2 and Sql server R2 2008 both in enterprise version may i know how to configure it up and running ? with amazon EC2, what other is a must combination to make it run ? also how could i install the operating system and DNS ? i never doing server before, but i just need something like VPS to support my development and testing. Amazon Ec2 seem the best and cheapest service due to only $1 per hour. Appreciate if Any brief guide provided, Thx =D

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• How can I launch RemoteApp on Windows Server from server itself at startup

  - by Rusted

  I have Windows Server 2008 R2 with RDS and custom desktop (GUI) application installed on the server. The app is started as RemoteApp on server by user from his desktop computer (or, sometimes, he can work from notebook over VPN). Some details about environment: the server automatically shuts down every evening and automatically power-on every morning (this is a requirement) desktop application do some precalculations/precaching on startup and it can take lot of time mentioned application have some memory leaks, so I can't use hibernate instead of shutdown When user launching this app from his computer, he can't start work with it until this app finishes pre-initialization. Is there any way to start RemoteApp session at the server startup (without actual user logon), so that the user could connect to this session from his computer later? I don't want to involve the user's computer to make it work. I have tried to do it by Windows startup script, but have no luck - starting RDP session requires actual user session.

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• Server 2003 answers ping, but wont serve http, ftp,smtp or pop3

  - by Manfred

  After reboot, my server wont respond to any incoming request until it is rebooted again. Then, about 5-6 hrs later, any website on it will return a ping, but it will not serve the page, nor will it serve ftp, pop3 or smtp requests. The System log shows W3SVC errors 1014 and 1074, which relate to an Application pool not replying; I have one phpAdmin app pool which I have stopped - it is showing a solitary website as the default App, but the server no longer serves php extensions, and I can't transfer the default website to another pool to kill the whole app pool. I would appreciate your help.

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• Monitoring AWS Systems Behind ElasticBeanStalk

  - by A. Avadis

  So I'm getting a company set up in the Amazon Cloud -- creating IAAS protocol/solutions/standardized implementation, etc while also being the SysAdmin for individual systems, app environments, and day-to-day uptime. One of the biggest issues I'm having is tracking various system/application logs, as well as logging/monitoring/archiving system metrics like memory usage, cpu usage, etc etc In a centralized fashion. E.g. -- Nagios + Urchin. The BIGGEST impediment to my endeavors is the following: The company application is deployed in the form of a Java *.WAR file, uploaded to an Elastic BeanStalk application environment, load balancing and auto-scaling between 3(min) and 10(max) servers, and the EC2's that run the application are fired up and disposed of ad-hoc. That is to say, I can't monitor the individual EC2's for very long because so many are being terminated then auto-provisioned/auto-scaled on the fly -- so I'd constantly be having to "monitor what I'm monitoring", and continuously remove/add EC2 machine addresses to my monitoring lists. IS there some sort of way to use monitoring tools like Zabbix or Nagios to monitor the ElasticBeanStalk, and have it automatically add on new EC2's, and remove terminated/failed EC2's from its monitoring list automatically? Furthermore, is there anything I can do with GrayLog to achieve similar results with the aggregation/centralization of my application logs from multiple EC2 instances into ONE consolidated set of logs/events? If not GrayLog, is there ANYTHING LIKE GrayLog that can automatically detect what EC2 members are being added/removed from the environment, and collect the logs from them automatically? Any and all advice or direction is appreciated. Thanks much, and cheers!!

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• IIS web service responds on server, not from remote client

  - by Aharon Manne

  I have installed a web service on a server running IIS (v6, as far as I can tell). There is another service installed, which responds as expected. My service responds correctly when a browser is pointed to localhost, but there is no response when a remote client tries to query the service. Fiddler on the remote client simply reports a timeout. Wireshark on the remote client shows no response at all from the server, no NACK, nothing. Wireshark on the server detects no query at the relevant port (the service is installed on port 8080). There are no relevant entries in the event viewer. Obviously there is some issue of permissions or authentication. I have tried to compare my service to the service that works, but I have not been able to locate relevant parameters. Any help would be greatly appreciated.

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• GlassFish change port of web-service

  - by Dror

  Hi, I am new to Java and Linux. I have a JSP site and a java web service deployed on a GlassFish server (working OK). I need to change the port of both the application and web-service. I have changed the listener port in the domain.xml file, but the web application is still trying to connect to the WSDL on port 8080. How can I change the configuration of the web service port? Thanks

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• One-Way Backup Service? [closed]

  - by Jon Rodriguez

  Up until a month ago, my girlfriend has used MobileMe to backup all the files on her MacBook. This turned out terribly when a quirk of MobileMe caused it to erase all of her files on MobileMe, and then sync the newly-erased MobileMe down to her computer, erasing everything. A week's worth of college essays and CS homework were gone. Now, I am terrified of any commercial cloud-backup solutions because of the possibility of this happening. Going off the list provided in these answers, could you please help me find a good backup service that is completely one-way? I want a service where there is literally not a single line of code that has the possibility of writing to my computer's drive. I want a pure one-way backup service.

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