2
votes
1answer
30 views

Multiple network interfaces, routing configuration. IP rule fails (debian based instances)

I have debian wheezy based instance with 2 network interfaces (Primary, Secondary). My setup flow: vim /etc/network/interfaces auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet dhcp ifup ...
0
votes
0answers
19 views

Conflicting ip routes with local table on attaching a virtual network interface

I have an EC2 instance with these ip rules: $ sudo ip rule show 0: from all lookup local 32766: from all lookup main 32767: from all lookup default I can attach an elastic network interface to ...
-1
votes
2answers
60 views

Join EC2 instance to my Local Area Network [closed]

Is it possible to join my EC2 instance (running Windows Server 2012 R2) to my LAN? I don't want to make it a domain controller, but I want to have it local enough that I can ping other devices in ...
0
votes
1answer
24 views

Routing of pptp clients

I have just configured a PPTP VPN server in an AWS VPC subnet. However, I am unable to ping through to other hosts in the same subnet (as the VPN server). I am not sure whether I am overlooking a ...
0
votes
0answers
27 views

Postfix+DKIM using Amazon's second private IP address

I use Amazon EC2 with 2 private IPs. I have 2 postfix instances (using multi-instance builtin support) with opendkim. Each instance works when I send email (over telnet) using the primary private IP ...
0
votes
0answers
23 views

Strange network issue when moving EC2 elastic IP

Recently we had an issue with a Windows 2012 EC2 server, which meant that we had to move across to another instance. We duplicated the instance, ran some tests and moved over the elastic IP. Should ...
4
votes
1answer
77 views

Very High Network out in ec2 instance

I launched an ubuntu-14.04-64bit instance in Amazon EC2 two days back. And I started Tomcat 7.0.54 in that instance and deployed my application war files. It has no other software installed other than ...
1
vote
0answers
36 views

cannot reach munin port on other AWS instance

2 AWS instances, in the same region but different availability zones, one is in regular EC2 and the other is in VPC, both have an Elastic IP, both are 64bit Amazon Linux AMI 2014.03.1. Both are ...
0
votes
1answer
67 views

How can I configure iptables to forward and forget?

I'm trying to create a front controller where users can connect to a specific port and have their connection redirected to a different IP/port. The reason I'd like to be able to do this is for ...
0
votes
1answer
71 views

How to setup windows server 2012 NIC settings with 2 NICs?

I have 3 subnets created in a Amazon VPC. Database private: 10.60.1.0/24 Application private 10.60.2.0/24 Public 10.60.3.0/24 I would like to have limited internet access to a server in the ...
0
votes
1answer
135 views

Connection to Amazon AWS highly unreliable [closed]

I have a Java application that connects to MySQL on an Amazon EC2 (USA east region) instance with JDBC (using official latest Oracle drivers, location specified by IP). It also connects to S3 using ...
0
votes
2answers
552 views

1.73 Gbps at best on an Amazon EC2 10 Gigabit instance?

When I test my own '10 Gigabit' instances (c3.8xlarge) with iperf I won't see transfer rates exceeding 1.73 Gbps. This is at least four times worse than what a blogger at scalablelogic reports where ...
0
votes
2answers
71 views

How to increase the speed of the network interfaces on an EC2 h1.4xlarge

The h1.4xlarge instances are meant to be 10gbps capable but when I check in windows it shows a 1gbps. There seems to be no config i can set on the eni, subnet or vpc to adjust this. Anyone have a ...
0
votes
0answers
26 views

EC2, traffic with second interface with EIP go out but not in

I have a micro instance in a VPC, which allows me to have 2 interfaces with two EIP each. Adding a second private address to the existing interface and allocating an additional EIP works. What doesn't ...
2
votes
0answers
198 views

How to make Statsd talk to Ganglia on EC2 (localhost)

As per topic, Im just trying to make this simple setup work. The services are running fine, but as far as I can tell statsd doesn't send anything over to ganglia. Ganglia is working fine I guess since ...
1
vote
0answers
99 views

Apache not responding in 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 the ...
1
vote
2answers
201 views

How to connect a data center network to a cloud provider with VPN

We have our production environment on EC2 classic, and we have a lease on some servers in a managed hosting environment. We would like to put a portion of our backend service in the data center, but ...
0
votes
1answer
38 views

EC2 instance passes health checks but no longer can SSH in

I've had my website (an EC2 instance) running for a year now and everything was fine until this morning when I lost access to it and its associated database (an AWS RDS database instance). I can't ...
0
votes
1answer
255 views

Two default Ubuntu instances cannot access each over through Amazon VPC

I am running two Ubuntu 12.04 instances, both of which cannot access each other. Machine 1: eth0 - 10.0.0.20 eth1 - 10.0.0.30 netstat -nr: Destination Gateway Genmask Flags ...
1
vote
1answer
247 views

Failed to bring up eth1:1 when using secondary private IP on secondary network interface on VPC instance

I have created a VPC ec2 instance (t1.micro), in which I have two network interfaces, the primary eth0 and additional eth1. I was able to bring up the eth1 by editing the /etc/network/inteface auto ...
2
votes
2answers
1k views

Running an EC2 server on Ubuntu with 2 simultaneous network interfaces

I have found similar questions relating to this issue but none matching my situation and none of the advice has helped me get this running. I have a 64bit Ubuntu server from the default AMI running ...
6
votes
2answers
336 views

How to address an EC2 instance from both inside and outside datacenter?

I'm trying to find a good way of being able to address my EC2 database instance from both inside and outside of the datacenter. Other EC2 instances need to be able to call into it, and other clients ...
0
votes
0answers
124 views

How to deal with Amazon EC2 network input bytes spikes

I have an Amazon EC2 instance which will periodically receive a spike in network input - always at around 6:45am. It sounds like exactly the same issue in this thread (Analyzing a periodic network ...
1
vote
1answer
134 views

Why can't I associate a private EC2 IP with an Elastic IP from VPC

I have three entries in my /etc/network/interfaces with eth0:0... eth0:1... eth0:2... and the ips 10.0.0.210 10.0.0.211 10.0.0.212 ...they're all working fine. So I added a new entry, eth0:3, ...
0
votes
3answers
162 views

I stopped /etc/init.d/networking, I can't log back in to my server to start it, what do I do?

I was editing the interfaces on my EC2 instance then I used this command to restart it: /etc/init.d/networking restart It restarted fine, but it gave a notice saying that isn't the correct way to do ...
1
vote
1answer
112 views

How do I receive traffic to the public IP of an additional ENI on EC2 Ubuntu?

I've added an additional network interface with elastic public and private ips. In ubuntu I can see the interface getting a local IP from DHCP, but I cannot ssh to the additional public IP. I'm ...
2
votes
1answer
368 views

Managing LXC containers in EC2

I have an EC2 instance running inside a VPC. I need to run a service inside a LXC container started in that instance and to make the service available to the outside world. I have therefore created a ...
0
votes
1answer
335 views

Creating a bridge on EC2 causes connectivity loss

I'd like to create a bridge in my EC2 instance and to associate an IP address to it. Given the default /etc/network/interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp ...
0
votes
1answer
58 views

Can i be hosting on a dedicated server and serve only my homepage from Amazon S3?

I currently host on a dedicated server. I want to serve only my homepage from Amazon S3/CDN. Is this in anyway possible using DNS. Only Homepage should be served using amazon s3/cdn, rest of the ...
0
votes
2answers
84 views

Nginx routing to another site

I've setup nginx on an Amazon EC2 instance I've purchased but I am stuck with the most basic question. How would I be able to route all the requests to another remote address. Assume that you have the ...
1
vote
2answers
284 views

How do I persist a hostname or IP to my Amazon EC2 Instance?

Suppose I spin up a machine in EC2. Every time I stop/start the machine the following things change (reboots are safe--they don't cause these to change): public IP address public DNS record private ...
2
votes
1answer
371 views

Second ENI in AWS VPC is not accessible on Ubuntu instance

I'm just getting into VPC, trying to understand how everything works. So far the biggest hurdle I've run into is that any time I add a second Elastic NIC to a machine, that second IP is not accessible ...
1
vote
1answer
98 views

Maximum packet length reached?

Clients are having issues connecting to perforce revision server I have set up for them to use. It appears that they have too many checked out/added files that need to be put into the system and they ...
0
votes
0answers
98 views

Cannot see an EC2 VPN server from another EC2 instance

I'm using openVPN to connect to one EC2 instance from another. The client cannot see the server, however, despite that servers outside of AWS can see the server and successfully negotiate with it. ...
1
vote
2answers
276 views

Squid showed up on port 8080. Possible Rootkit?

I recently attempted to connect to my EC2 server on 8080 and had some strange issues that weren't occurring earlier. NGinx (though setup for :81) captures any requests on port 8080. If I stop ...
0
votes
2answers
480 views

NAT and NGINX on the same server

I'm setting up a VPC cluster for my collaborative todo list application www.getdoneapp.com. To have my servers on the private network I need a NAT server so my servers on the private network can ...
2
votes
1answer
971 views

Cause of slow download speed on a particular EC2 instance?

I have a networking issue I'm trying to solve. I have two EC2 instances, same zone, same type. On one of the two EC2 instances (the 'bad' instance), the download speed is really poor (200k/s), while ...
2
votes
1answer
171 views

Justification of Amazon EC2 Performance

I have a .jar file that represents a server which receives over TCP an image in bytes (of size at most 500 kb) and writes it file. It then sobels this image and sends it over TCP socket to the client ...
1
vote
4answers
3k views

Amazon EC2 Public DNS is useless?

Seems the Public DNS, e.g. ec2-x-x-x-x.compute-1.amazonaws.com will be changed when you stop or terminated the instance. So this mean they have the same life span as the ec2 public IP address, so why ...
-4
votes
1answer
337 views

Creating ethernet alias for eth0 network device on EC2 instance

i'm trying to create an ethernet alias for eth0 network device for two EC2 instances following instructions in this tuotorial guide ...
1
vote
1answer
3k views

Amazon EC2 instance missing Network Interface

I am running Linux on a t1.micro instance at Amazon EC2. Once I noticed bruteforce ssh login attemtps from a certain IP, after litle Googling I issued the two following commands (other ip): iptables ...
1
vote
0answers
866 views

Cannot connect to MySQL on RDS (Amazon Web Services) from my laptop

I'm having some trouble connecting to a MySQL 5.1 server on an RDS instance on AWS from my laptop. The detailed description of the problem is here: ...
0
votes
1answer
456 views

Securing EC2 machines with VPC + a VPN?

Right now, my company is pre-launch and is getting away with a few dirty hacks. The biggest one is that our staging, ci, and monitoring boxes are available at staging.ourcompany.com, ...
0
votes
4answers
790 views

Mapping a Local Drive to Drive on Windows 2008 Server running on Amazon EC2?

We are exploring the use of a Windows Server 2008 micro instance running on Amazon EC2 for a Apache+MySQL+PHP development web server that we could could administer for our client to allow their ...
0
votes
1answer
268 views

amazon aws network latency issues

We have just started to move our infrastructure to Amazon's AWS (EU West). Since we started the move we have started seeing some quite substantial spikes in network latency. Our setup is quite simple, ...
0
votes
1answer
394 views

estimating network capacity on AWS/EC2

I have a rapidly growing (10Ms calls/day) web service currently on one EC2 app instance running ubuntu10.04+ apache + APC + memcache (+ several master/slaves mysql farms on other instances). I ...
0
votes
1answer
205 views

Access mysql database from an Amazon Windows EC2 instance to another EC2 windows instance

I have 2 Amazon EC2 instances running WAMP stack. They are both in the same amazon account but different regions. Normally if I had this setup on Godaddy I would have used SOAP service to access data ...
0
votes
2answers
4k views

ssh connection refused only from my mac, my linux box connects without issue

I am having a strange issue. I have an EC2 server (Arch Linux) that I am able to access (via ssh) from my local linux server without issue, however when I try to ssh into my EC2 server from my ...
2
votes
1answer
90 views

EC2 security group settings are not allowing SSH access

So when I open port 22 and 80 in the default security group I'm not able to ping the domain. I've opened TCP, UDP, and ICMP to all and now it works but of course I need to find another solution. ...
1
vote
1answer
342 views

Does Amazon AWS block multiple connection from the same IP?

I use Amazon AWS, however, I am noticing a problem. I have a machine I host outside of AWS which needs to make multiple connections to a database located within AWS. It needs to make several queries ...