4
votes
1answer
170 views

Is listening on a port on the localhost of a server the same as listening on that port of the server's public IP address?

I set up a free Amazon EC2 instance in order to use a Node app outside of my localhost environment. The instance is allocated a public IP address at launch, mine for example being 54.187.31.42. Does ...
0
votes
1answer
30 views

Telnet between two linux machines on Amazon EC2

I am not a networking guy, so I apologize if my question is dumb. I have two Ubuntu machines setup via Amazon EC2. I need to "talk" from one to the other over port 3000. On my receiving machine, I ...
-1
votes
1answer
44 views

Sample (working) configuration for openvpn in AWS

I've been trying to set up openvpn on AWS EC2 instance and I'm having lots of trouble with that... I followed the guide on ubuntu help center but it either blocks all connections or doesn't work ...
0
votes
1answer
40 views

Unable to connect to custom port on Amazon EC2 instance

I saw many posts about the subject, but none of the suggested solutions seem to address my problem. I am using simple echo client-server programs test connectivity to Amazon EC2 instance running ...
0
votes
0answers
50 views

Apache not responding on port Amazon EC2

Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find ...
1
vote
0answers
60 views

EC2 instance with two internal IPs - using ifconfig

I am trying to allocate another internal IP to an EC2 (classic - not VPC) instance with the following command. sudo ifconfig eth0:0 inet 10.80.7.40 netmask 255.255.255.0 Here, 10.80.7.40 is just a ...
2
votes
1answer
61 views

puzzling DNS behaviour (ubuntu)

(All IPs and names have been censored, hopefully) This morning we had some connectivity problems in one of our servers. It turns out that changing our connection configuration to be IP-based (not ...
0
votes
1answer
402 views

How to point domain name to Amazon EC2 subdirectory

I'm having trouble pointing a domain name to a subdirectory on an Amazon EC2 instance. FYI - I'm not too experienced with DNS or networking ... So jumping right in ... I set up an Amazon EC2 ...
2
votes
2answers
381 views

Having bridged network for lxc containers in Amazon ec2

I am trying to setup LXC containers on top of Amazon. I am very much new to Amazon and VPC especially. In fact created VPC for the first time to experiment lxc. My Goal: My goal is to have lxc ...
2
votes
1answer
79 views

rsync via gateway ssh while defining .pem key

I need to sync my local files through a gateway to an Amazon EC2 instance that requires specifying my .pem key. I can do this as a three step like so (assuming no typos): rsync -avzh -e ssh ...
0
votes
2answers
702 views

Finding my network's public IP address range

I am referring to the following instructions to setup Amazon EC2 web services on my local machine: AWS-Security-Group I do not know how to complete the first bullet under step 6. How do I find my ...
0
votes
0answers
137 views

Amazon EC2 Instance + Bluehost mysql = unable to connect

From the Amazon EC2 server I am getting this error: ERROR 2003 (HY000): Can't connect to MySQL server on 'bluehost dedicated IP here' (110) The Bluehost mysql server remote database access allows ...
0
votes
0answers
96 views

EC2 — can't connect to my web server

I can ssh into my machine but can't connect to my jetty server running at port 8080. I've disabled the firewall. I've setup Forward rules correctly (Security Group) Inside the machine, If I do ...
0
votes
2answers
123 views

How to extract IP address from Amazon hostname?

I really don't know why, but Amazon Web Services provided me with some weird hostnames for my machines. Now I need to list all them with knife to use in a bash script. I'm saying that the IPs are ...
0
votes
0answers
406 views

Unable to connect to amazon ec2 instance over ssh

I am unable to connect to my amazon instance through ssh from a particular internet provider's connection. But I am able to traceroute to that ip from the same internet provider's connection. ssh ...
1
vote
1answer
616 views

How do I configure a Netgear FVS336g for use with Amazon VPC?

I think it should be possible to create an IPSec tunnel between a Netgear FVS336Gv2 firewall/router and AWS VPC however, I've been unable after several tries. How do I setup a connection for a Amazon ...
2
votes
6answers
6k views

What can cause a MAC Address to change?

I would like a summary of common scenarios that can cause a MAC address to change? Does hopping on a new network give you a new MAC? Does installing a new network device (e.g. WiFi card) cause a ...