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Amazon Web Services (AWS), is a collection of remote computing services, also called web services, that make up a cloud-computing platform  operated from 11 geographical regions across the world. The most central and well-known of these services include Amazon Elastic Compute Cloud, also known as "EC2", and Amazon Simple Storage Service, also known as "S3". Other services include Elastic MapReduce (EMR), Route 53 (a DNS web service),  provides a highly available and scalable Domain Name System (DNS) web service, Virtual Private Cloud (VPC), storage, database, deployment and application services.

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how can I have an instace of CENTOS in AWS and be able to login with one user that has a key and other user that will be only able to login with user name and password

is this possible?

Is your NGFW recommended by NSS Labs?
Is your NGFW recommended by NSS Labs?

Ours is! NSS Labs Next Generation Firewall Test gives the WatchGuard Firebox M4600 a "Recommended" rating! Curious where your NGFW landed on the  Security Value Map? See the map and download the full report today!


i want to know if it is possible to import a machine running on Amazon cloud to VMWARE.

hi trying to install jboss on AWS ubunutu and access console from external/Internet

Followed so far
1. Installed Jboss on ubuntu followed these page (
2. Followed this step to allow connections from external (
3. started with -b
./ -b
./ -b <AWS Elastic IP>

when I tried to connect I get below error on the browser
This site can’t be reached.<AWS Elastic IP> refused to connect.

after I enabled TRACE. I get more info but couldn't figure out what is wrong. Please help
Pls check the attached trace.log file

thanks in advance
This is using Amazon t2-micro AMI 64-bit linux EC2 instance. I have a gmail email address, thinking of setting up a mail client, with correct credentials so as email can be sending out from this server. I saw a Sendmail daemon is running. I am thinking of sending a tripwire report to my gmail email address, with the cron job command as shown:

/usr/sbin/tripwire -m c | mail -s "Tripwire Report from HOST"

I heard that sendmail client is pretty difficult to setup. How about other mail client, such as postfix, and so on.

Thanks in advance.
Hello EE,

I have an f5 big ip appliance up and running , however I wish to have 2 interfaces configured . One interface to sit 'out front' of our dmz firewall , and a second network interface to reside 'inside' on the 'lan' to load balance tcp traffic and run irules .

Can someone provide direction please on this matter.

We are trying to bring up a postfix mail server on an AWS EC2 instance. We have gone through SES but we need to manage our mail server rather than AWS managing it for us.

We already have a domain The next step would be to bring up a EC2 instance and install Postfix on it. I would assume we need an Elastic IP assigned and then map a DNS to it so that is is resolvable. I'm next assuming we need to assign an MX record for Would this generally work if you send email to or are there additional steps like assigning SPF records and DMARC.
This is using Amazon web services. This EC2 instance was created using Elastic beanstalk. Using this Elastic Beanstalk, 1 EC2 and 1 S3, plus some other components are created. This EC2 is also having php and MySQL, so it is a LAMP server. It is used to serve dynamic web applications.

Now, I want to setup cloudfront for SSL cert and faster data delivery. I follow the normal steps > choose web delivery, configure origin, distribution, and cache behaviour. I also made use of the route 53 for the public hostname to be pointed to relevant cloudnet. I waited this cloudfront distribution to be "deployed". However, when I access to the web with https, an error message prompts:

cloudfront attempted to establish a connection with the origin, but either the attempt failed or the origin closed the connection.

What would be standard ways of setting up this cloudfront to work with EC2 (LAMP)?

I'm trying to setup a new webrtc instance behind the firewall where tcp 80 and 443 ports are only available.
All is fine as long as udp ports are enabled. Once I block udp, I can't establish a client connection.
The stun/turn server has been setup however connections are not redirected from webrtc.

RTCMultiConnection.js config:

var IceServersHandler = (function() {
        function getIceServers(connection) {
            var iceServers = [];
iceServers.push(getTURNObj('', 'user', 'pass'));
            if (window.RMCExternalIceServers) {
                iceServers = iceServers.concat(getExtenralIceFormatted());
            } else if (typeof window.getExternalIceServers !== 'undefined' && window.getExternalIceServers == true) {
                connection.iceServers = iceServers;
                window.iceServersLoadCallback = function() {
                    connection.iceServers = connection.iceServers.concat(getExtenralIceFormatted());

            return iceServers;

        return {
            getIceServers: getIceServers

turnserver.conf config


All is running in AWS cloud.

I have a FIX engine running in the cloud and I'm entertaining the idea of streaming FIX messages over websockets vs aws SNS.  Does anyone know pros'cons for either or at least some concrete resource to be able to compare the 2?

I built lightweight clients for both and both seem to be able to be tuned for high usage as well as low usage, so its just matter of price seems like.  Need help deciding.
Simply put.. I connected to a free micro instance of a postgres DB I created on AWS RDS.

It worked fine. I set up a database and a couple tables on it.

Now that I'm trying to connect to it from my app.. it's just timing out.

AND.. I can no longer connect to it from PSequel or.. anything. It just keeps timing out.

I'm not even sure what more detailed questions to ask or what to direction to poke in on this one.
Transaction Monitoring Vs. Real User Monitoring
Transaction Monitoring Vs. Real User Monitoring

Synthetic Transaction Monitoring Vs. Real User Monitoring: When To Use Each Approach? In this article, we will discuss two major monitoring approaches: Synthetic Transaction and Real User Monitoring.

I need to do a disaster Recovery  test this year and I was thinking about backing up our data from  our domain controller to  Amazon(AWS) cloud

HAs anyone ever  done this?
 I am talking about 600 gb of data

any tips or ideas would be appreicated
Hi I have developed a powershell script to logrotate on aws s3. The procedure is that  through script I create archive using 7zip and then use aws put-object. But the script fails to create archive in first step and cites it cannot read archive.

The second approach I did was used compress-archive to create archive and it worked successfully to create archive. But when I download the archive from s3 manually I find that sub-directory files are all present in root folder and all files named as filepaths. This happens as compress-archive fails to send metadata of archive.
What are the advantages and disadvantages of migrating to the cloud instead of physically hosted , any contributed answer will be rewarded.
I am setting up a SQL 2012 failover cluster in AWS, My two sql nodes are in different availability zones (2 x Subnets) (Zone A) and (Zone B). I have configured windows failover cluster / sql cluster and am able to failover between the two servers. There are two DNS entries for the sql cluster name,


Currently the host in Zone A is online and servers in that subnet can connect to the instance but servers in Zone B are trying to connect to AWS-SQL-CLUS - which is offline.... how do i get the servers in other subnet to resolve the DNS entry of the online server ??

I have a public nat instance and private instance with only private ip. Without iptables in nat instance , private instance is getting internet. But after adding iptable rules in nat instance, private instance is not getting internet. I added iptable rules with output drop,input drop ,forward drop chain. After adding this rule nat is not working.

Do I need to add any pre routing or post routing rule to my iptable rule list.
Is it Possible to have Active Directory On AWS without On-Premise Active Directory?

I wanted to join my on-premise users desktop/laptop to Active Directory On AWS .

Basically, i do not want to have on-premise Active Directory.
Hello Experts,

Currently the Atlassian applications along with the Postgres databases reside on 1 VM.

I am looking for any recommendations for splitting up the applications/databases and platform options to integrate the Atlassian applications on (VM, Docker or AWS).

We have 100 users split between the US and UK.
can any body send me any urls that help me to create a openVPN  connetion to AWS vpc and my personal laptop
Here's my AWS linux apache directory structure:
/var/www   rwx rws r-x  2775
/var/www/html   rwx rws r-x  2775
/var/www/html/AWS_s   rwx rws r-x  2775
/var/www/html/AWS_s/nm-app   rwx rws r-x  2775
/var/www/html/AWS_s/cr-app   rwx rwx r-x  0775
/var/www/html/AWS_s/cr-app/media   rwx rwx -wx  0773

Open in new window

I had to make the media directory 'other' -wx in order to be able to copy a file to it, which succeeded.
In order to increase security I want to chmod 'other' using PHP to r-x.

The script is in the cr-app directory:
if(chmod('/media/', 0775))
    echo "Successful chmod";
    echo "An error occurred during chmod'ing";

Open in new window

However, it fails to change permissions.
Any ideas?
Containers and Docker for Everyone
Containers and Docker for Everyone

Containers are an incredibly powerful technology that can provide you and/or your engineering team with huge productivity gains. Using containers, you can deploy, back up, replicate, and move apps and their dependencies quickly and easily.

i have a Symantec Endpoint manager Console and we are setting up AWS Servers - does anyone have any recommendations/experience on installing endpoint client on AWS servers?

any specific configuration/policy need to be made? etc...
I have a Sonicwall NSA 240 running firmware SonicOS Enhanced, setup using tunnel interface to AWS.
We disabled the load balancing and failover feature at AWS's request.
Ever 8 hours when my Sonicwall and AWS vpn renegotiate Phase 1, I loose access to http on an EC2 server running Oracle.
I can ping and ftp to the EC2 server but can not get to the web gui.
Confirmed life time on both sides of the tunnel match up.
Hi All,

I have an application where Developers and content team will update content in site frequently.

Due to cloudfront cache, the content is not getting updating on live site immediately and end user is seeing updated content after 4 hours.  

Any idea how to flush cache in updated content on cloudfront automatically?
Hi Experts,
could you please help by giving some lead and list of applications/products that can be used to view dashboard on mobile

Also pls suggest few options on below scenarios

Scenario 1:
1. Data will be flow in from different format. E.g csv, txt, mysql, oracle etc.
2. Need a product to consume this and produce report/chart basically dashboard especially supporting Mobile device. Also on a web browser.
3. Interesting to these products....splunk and tableau. But not sure how well they support mobile device.
4. suggestions on licensed and open source dashboard.
5. Any application/product specialized for mobile device

Scenario 2:
1. Develop dashboard in house which should support mobile device and web browser (responsive ?)
2. what are the best set tools available to achieve this.
3. If you could provide high-level tool set and their integration point. E.g. java + plugin/module + AWS + etc etc. (I'm just mentioning what comes to my mind.) :)

Thanks in advance
I need help with Amazon MWS.

1) How do I set up an Amazon Marketplace Web Service MWS account to test developer applications?
2) How can I set up this account without being having a Amazon professional seller's account?
3) If this MWS account is set up using a professional seller's account, can the MWS account access Amazon products that are NOT in the seller's account?
I'm building a news application. Each article can be tagged with words like "Politics", "Food", "San Jose, CA". I'd like users to be able to select a tag, and see all related articles. What would be the recommended way of storing this data?

My instinct is to use S3 for each news article and tag, and then to use DynamoDB to store the relationship of tag to article (edges). So, when a user wants to view articles for a tag, I'd retrieve the S3 object for that tag, do a DynamoDB query for the ID's of articles associated with that tag, and then retrieve the S3 objects for each article.

Does this sound like a good plan, or is there a better way?





Articles & Videos



Amazon Web Services (AWS), is a collection of remote computing services, also called web services, that make up a cloud-computing platform  operated from 11 geographical regions across the world. The most central and well-known of these services include Amazon Elastic Compute Cloud, also known as "EC2", and Amazon Simple Storage Service, also known as "S3". Other services include Elastic MapReduce (EMR), Route 53 (a DNS web service),  provides a highly available and scalable Domain Name System (DNS) web service, Virtual Private Cloud (VPC), storage, database, deployment and application services.