Networking :: IP And Port Forwarding From Cloud To Cloud?
Oct 24, 2010
So best if you take a quick look at this image, which describes a network topology: [URL]
I am behind a firewall in the university dorm and many ports are banned. Well pretty much everything besides 80, 8080, 110, 21, 22 and the most basic ones. So I'd like to get around that.
I have a home server that is connected and reachable on the internet. So if you type in 90.90.90.90:80 into a browser it's reachable.
The task would be to set up a port forwarding or how you call it in a way that if I access my home server from the dorm or anywhere, it would act as a forwarder and forward that packet or connection to the 80.80.80.80 server on a specific port, say 2083 so that I can even access my hosting Co's admin user interface.
To sum it up: I'd like to access the 80.80.80.80 server from the dorm on port 2083 which is blocked by a firewall, but I have a home server that is reachable on non blocked ports. The home server has no ports blocked.
what kind of network between cloud controller and nodes, is required for a proper cloud installation? I mean, Does all machines needs to be in same network, in same lan, or may be in MAN or WAN ? how much should be network throughput? 1Mbit/sec , 10Mbit per sec, or 1Gbit/sec? I ask because I need to know the possibility of running nodes on different locations.
I have set up a cloud (Ubuntu) environment in my test lad and it's working fine I am confused setting up the public IP in the production environment. The cloud instance will get only a Internal IP address ( Private) we cannot bind the Public Ip to the cloud instance as it uses Elastic IP, so I am confused how can I set up this if I have about 250 Public Ip to 250 cloud instance. How will I map this 250 Public IP with the 250 internal IPs is there any hardware device.
To be short and to the point, I want to setup a service with my clients and allow them to back up to one of my servers. What I would like to do is allow client connections via WinScp to a ssh server that has home directories for each user to backup data. If users want their data I would like them to be able to connect to my apache web server (same as ssh) and download from anywhere.
Is there a way for apache to link web directories on the server to the actual /home/user account and use the same login information/authentication?? Does this make sense? I really appreciate the help. I am not a developer or else I would simply develop a user friendly front end for to an ssh server. Since that is the case I think this is the best solution for me, as well as the easiest for the client.
Over the last 3 or 4 days, I have been unable to load sites that serve their images, scripts and whathaveyou from Amazon's cloudfront domain.
[URL]
I have made no changes to any of my networking files, hosts{allow,deny}, or dns settings.
Connections don't provide any errors, just continually fail to load. Stopping the page load after a while reveals the raw HTML in some cases (quora and blekko).
Tested in Firefox, Chromium, Midori and Vimprobable.
I have booted into another distro and pages resolve immediately.
I have disabled IPV6 and my firewall - to no effect.
I have just set up shorewall on my router running Arch Linux. The external network is on eth0 and the internal network on eth1.I have set it up for masquerading and that works fine and I can open ports to the firewall. But I'm having trouble with port forwarding to my internal machines.The problem I have is that when port 22350 is forwarded to 192.168.1.3 on my local network, checking the port with nmap from a remote computer gives me:
I have read just about every page about the UEC project, and I now know everything about it, except... WHAT IT DOES! I can't seem to find a coherent example of what it does. To the best of my understanding, it runs a virtual machine across multiple servers. Allowing the VM to use the RAM, CPU, and HDD resourced on all servers involved.
I have (had) most of my pictures backed up on Ubuntu One. I have several Computers and everything was in sync. The first time took weeks as I have around 20GB of pictures and a mediocre internet connection. So I installed Ubuntu 11 on one PC, and as I wanted to repartition things, I took a copy of the Ubuntu One folder, then reinstalled from fresh. When it was done, I copied the Ubuntu One folder back. Ubuntu One didn't seem to like this, and has basically decided to upload everything again, but my used space is not showing up as 1.8GB. Where have my online files gone?
I have a number of questions related to Ubuntu and private cloud: I would be working on cloud computing for my final year project soonest. 1. What are the things to be done after installing ubuntu to deploy a private cloud. 2. My computer is running 32bit Intel CPU, is there anyway I could possibly install 64bit Ubuntu/Fedora OS on VM installed on this computer? 3. what are the other software applications that I need to install on ubuntu to enable me create a private cloud.
In our school I was thinking of moving to virtual desktops for the students, that would revert to a pure state upon every log out. No changes preserved after a session. We use Google docs for office, so that works. But where can we store stuff like Inkscape drawings?As far as I can tell Google storage can't be reliably mounted yet on Ubuntufor a good cloud storage option that we can quickly log into that will give us a folder for storage online?
I have read several articles online trying to get a grasp and understand on a simple question. What is main difference and functions of cloud server infrastructure and cluster server infrastructure
To my understanding, the the basic setup is sort of identical in a way. They both have a master server (3 GHz, 2GB RAM 50GB HDD), from there it connectes to a switch, then a number of nodes (each 2 GHZ, 4 GB RAM, 100GB HDD) connect to the switch.
The cluster combines node resources so it looks like one computer (5 nodes = 2GHZ x 5, 4GB x 5, 100GB x 5 = 10GHZ, 20GB RAM, 500GB HDD). If this is correct, this sounds good for possibly Database or File server. The resources on cluster would be constant. Example would be Database Server. While running DB server it starts to slow down because of all the data it is trying to store and retreive. If you ned more resources, just add another node.
The cloud uses only resources it needs to run (same numbers as cluster). This is good for Database or Web Server. Example: Web server is hosting 10 domains each with 20 pages. One hour it uses 3 GHZ and 8 GB RAM, next hour it is getting heavy traffic so it uses 9 GHZ, 15GB RAM.
But from what I have gathered and read, this is how I am interpreting the information and understaing it. Plain and simple.
I hope this post is in the right area of the forum.I am searching for the right operating system and application(s) to build a cloud data storage server business like Backblaze.Backblaze uses Debian but uses their own custom application to manage the data, uploads, accounts, encryption, etc... So my real question here is: does anyone have any recommendations for existing application(s) I could use on top of Debian to handle this stuff?
I've been looking for a good alternative to Dropbox - just a little too pricey for me. And I just discovered Amazon Cloud Drive. Has anyone here had any luck setting up some sort of automated backup solution using Amazon Cloud Drive? I've been all over their site, but I just don't see any other way to access the cloud drive other then via their web interface.
Optimally, I am looking for a solution that will allow me to simply set up an rsync script or similar that would sync up a folder to a cloud drive every few days. Maybe their S3 tools can be used to do this?
I have multiple video streaming servers(Red5 running on machines internally on LAN. For different subdomains.Ubuntu 10.04 The front end to the is apache2 on a Bastion Host. To be able to reach the streaming server I embed a javascript in HTML pages as follows
Code:
<embed ..... var="rtmp://site1.my_domain.com" >
[code]....
how will I make sure this rtmp request is mapped to a port different than 1935 as there are three other streaming servers which are also to respond to their respective requests.
I get error during install when searching for and trying to add node from the Cloud Controler: New node found on 192.168.1.182:add it? [Yn] y Connecting to 127.0.0:8774...failed: Connection refused. Error: you need to be on the CC host and the CC needs to be running.
We do have a problem on running the images on the cloud server.. how we can use or how we can run the eucalyptus cloud images using elastic fox? or there is another simple way to activate those images provided by eucaplypus... thanx in advance... and were trying to activate the private cloud only..
What's the difference in terms of scalability? We would be hosting videos and FOSS collaboration tools (wiki, forums, etc.) on 4 separate servers. If I install the cloud server, I will need to install the GUI anyways. The servers are all brand new
I have installed Ubuntu enterprise cloud on two machines(Cluster and node)and trying to set up an image and test my internal website in private cloud. if there is any documentation or any steps?
I have a plan to deploy a private or public cloud computing. And I've been considering Eucalyptus, OpenNebula, Nimbus, vSphere, abiCloud and Joyent.
I'm very interested in Eucalyptus and OpenNebula, since they are both open source, they have many features, they both support Amazon EC2 and Amazon APIs and they seem to be able to work with different hypervisors, such as KVM, Xen, VMWare ESXi, etc.
Eucalyptus seem to be very supported by Canonical, because it can work with Centos Server, so I bet it will grow more and more, and we have a good experience with Linux and in particular redhat.
On the other hand, many people told me that right now OpenNebula is better. So the question is:
- which one between Eucalyptus and OpenNebula? The other three choices? vSphere is probably free (if we use ESXi and not ESX) but it's not open... abiCloud seems to be similar to Eucalyptus and OpenNebula... about Joyent, many people say very good things, but I want to know more, and then, is it open source? I mean here, can I use it as free ?
After having built the private cloud, we probably want to also use an external service and create an hybrid cloud. If for private cloud we chose OpenNebula,Eucalyptus, abiCloud or Nimbus I guess the best thing is to use Amazon EC2.
- Is it also possible to use VMWare solution?
- And if we chose abiCloud or Joyent, what can we use to create an hybrid cloud?
About Microsoft Azure and Google App Engine, it seems to me they have many limitations and I prevent it because it could be have a highly cost, so I'm not considering them.
I have collected a number of computers over the years, and now I would like to put them to good use. I considered UEC, but many do not support hardware virtualization and all I really need is storage. Over all the machines, I estimate that I have 4-5 terabytes of storage, all going to waste because each one has relatively low storage space. Is there any way I could setup a redundant storage solution that utilities these machines in a networked system?
what cloud computing is and i think it can help me with some of my clients i want to switch my clients from a normal ubuntu server to a ubuntu cloud. as of right now i have to send out a bill to them and if they dont pay i have to shut down there service till they pay. what i would like to do is to have a cloud where i can sell them based on what they use not a set price like it is now. and have them be able to pay there bill on the cloud and if they miss the bill then the cloud can shut off there service till its payed.
i dont know if this is possible and i have looked everywhere and all i can find is info on other businesses billing and now how to set up a cloud to do this. i wish there was some kind of tutorial for this. if anyone can direct me to some good notes/tutorials that would be very helpful. this could be a big changing point in my business if i can do this. it would save a lot of time and cash.
I downloaded the latest 10.4 server CD with the intention of running a small Ubuntu Enterprise Cloud. I am following the directions here: [URL] Ive got 2 laptops that are capable of the tasks assigned to them. Both have dual core Intel chips that are VT enabled, 4GB of RAM, 250GB hard drives. Ill use one ( "server" ) as the front end server running cc, clc, walrus and sc.The other one ( "node1" ) will be the only node controller on my little network. Ive also got another laptop as a client, running euca commands to make instances and what not.These three laptops are connected to a switch. server is 192.168.1.100, node1 is going to be 192.168.1.110, the client laptop is 192.168.1.120.
the server seems to install fine, I select Install Ubuntu Enterprise Cloud, use it as the Cluster, give the cluster a name and 10 IPs to assign, 192.168.1.150-192.168.1.160 After the server is done installing and reboots, I boot the node machine off the CD and again select Ubuntu Enterprise Cloud. It's at this point the install craps out, because it does not recognize a cloud computer on the network.
Indeed, as I go to the server I run
Code:
ps -aux | grep euca
and see nothing running. So I start the eucalyptus service, and run
Code:
sudo euca_conf --list-clusters
and nothing shows up. Ive done some googling, ran some more euca_conf commands, registering the cluster, enabling walrus, cloud and sc. I can access the web gui on the client laptop, then restart the node install on the node laptop. This time it does see the server as a cluster controller, but when it tries to fetch the preseed file, it seems to not know the cluster's IP, as the red box that complains about the lack of a preseed file lists the URL as [URL] ( or whatever the file is called, I dont have the error in front of me. )
Last night my old Sony Vaio laptop which connects via wired Ethernet and runs Ubuntu 10.10 started hammering the network out onto the Internet. Fired up Wireshark and found lots of traffic between my machine and 174.129.193.12 which I did a whois on and found belonged to Amazon EC2 Cloud Server. The port on my machine was an unknown 5000+ but the port on the remote system was 443 the port used by https, however no browser was running. Did a search and put together a couple of iptable commands to block this IP address which stopped the traffic. I then used nmap and netstat and found port 3000 open and another connection to IP address 91.189.89.76 which I also blocked. Unusually no info exists on this IP when you do a whois. At first I thought it might be some sort of sync as this machine has Ubuntu One running on it, however it could also be something else.
I am in the process of setting up a couple of virtual servers in a cloud environment. I am currently working on my application server (Server 1) and am stuck on the creation of my ruleset for this server.
I need to allow SSH, FTP, HTTP, HTTPS, and PING on this server. This server will also need to be able to talk with a couple of database servers as well as a memcache server (all internally within my cloud environment)
I have been reading on iptables, since I have never messed with them before, and have come up with the ruleset I will paste below. I have taken other steps to secure my server...changing ssh port, not allowing root to login via ssh without logging in as a user, turning off unnecessary daemons, editing my hosts allow/deny files, just to name a few.
I am a newbie to iptables, so I would love a bit of helpful advice, criticism, and even a good explanation why I should add or remove or edit something. I really want to know the how AND the why!
