Ubuntu Servers :: Unable To Access UEC Instance From Public Ip?
Apr 14, 2010
I have setrup Ubuntu Enterprise Cloud on a single machine.
1) I am able to run the instances from store (karmic) On running the instance two ips are assigned (public and private) as 10.B.C.X and 172.19.1.2
2) I am able to connect to the instance (10.B.C.X) through ssh (using key)
3) However I am unable to access the instance outside the UEC (using public ip). When I try pinging, I get an error Request timed out or sometimes Destination host unreachable.
4) I have provided the following access using euca-authorize
Details below:
1) Hardware : Blade (64 bit)
2) Version : Ubuntu 9.10; Eucalyptus the one using apt-get install eucalyptus
3) Topology : Single physical system
4) Mode : Managed no-vlan
I have set up UEC on a single machine 64 bit blade. I have followed the steps as per the documentation.I am using Managed NOVlan mode. I have installed the Karmic kola image. When I try to run the instance, I get an error "no resources available. Try --addressing private". When I try addressing private, an ip address 172.19.1.2 is assigned and the instance was running.
a) When trying to ping the ip, error displayed that the host is unreachableb) I am also unable to connect to ubuntu@172.19.1.2 using ssh. Error message is displayed that " No route to host".I have searched the forums but couldnt find any solutionPS: I suppose everyone is very busy. I see very limited responses to posts. Sharing your experience and expertise will be helpful for all and will reiterate the meaning of ubuntu
I had installed UEC 10.04. It is a 2 server configuration with CC, CLC, SC and Walrus on one server and NC on another server. I could run instance of images, But when i try to ssh to the instance, it doesn't work.
It shows ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host. This to me seems there is a problem with my network connection. Pl find below the ifconfig output of the two servers:
Controller: eth0 Link encap:Ethernet HWaddr 00:0c:29:90:95:17 inet addr:172.18.144.36 Bcast:172.18.145.255 Mask:255.255.254.0 inet6 addr: fe80::20c:29ff:fe90:9517/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Basically I am trying to set up my own server so that I can ssh into it from anywhere. I am able to SSH into my server when I use the LAN IP of my server but I am not able to SSH into it if I use the public IP address. I have read many threads and in my opinion I've tried almost all of the common fixes suggested. One possibility may be that my ISP has blocked port 22. I have taken this into consideration and sent them an email and I'm presently waiting for a reply. However, I highly doubt that my ISP has restricted acess to port 22. I would really like to be able to SSH into my server from anywhere.
1). I installed openssh client/server using the following commands: Code: sudo apt-get install openssh-client sudo apt-get install openssh-client
2). I forwarded port 22 on my router. (see attachment for the settings)
3). I modified /etc/ssh/sshd_config such that my server has a static LAN address. contents of sshd_config file: Code: # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to ..... I then entered the command: Code: sudo /etc/init.d/ssh restart
4). I turned off the firewall using the command: Code: sudo ufw disable
5). Here is the output of the IP tables: Code: Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination
I'm trying to write a p2p file sharing program using python's built-in libraries. Everything is going well. The only thing is that i'd like to be able to use openssl public and private keys so only a host with the public key could access/decrypt the filesharing. I've gotten these libraries (httplib, basehttpserver, ssl, os) to work using just a pem file containing both the public and private keys but no success with them seperately. Can someone point me in the right direction or offer an alternative? PS, the goal of the project is to create an anonymous, decentralized, secure file sharing program. I want to be able to upload this to sourceforge so everyone can use it, if that's any incentive
I've spent days trying to setup access properly from a public address to a monitoring server that works fine locally. Everything works from public access until I try to link to a CVS repository. The rancid CVS repository is set up as a separate server (virtualhost). It appears the referring link causes a DNS error (105: Server Not Found) when the CVS repository server is accessed from the public address. Things work fine when accessing via localhost.
Localhost link:
[URL]
Public link: (this results in 105 error caused by redirection (bold portion of link))
I have KDE 4.4 and Firefox 3.6. Whenever I click a link from a plasmoid widget, it tries to open Konqueror and another instance of Firefox. The page actually loads in the opened Firefox window, but the task bar shows an instance of Konqueror and another instance of Firefox, that keeps loading for a while then close. See image below:
I currently have setup the browser default application as "firefox". If I set this option to use the default application, it opens in Konqueror and I don't see additional windows in the task bar. If I change the option to "firefox %u", then it exhibit the same issue, but the process is much faster, so the loading windows don't stay for long in the task bar. Additionally, it opens the link on a new Firefox window and opens the page twice. Although Konqueror is not loaded, the bouncing icon next to the mouse pointer shows up and stay for a while.
I am running Ubuntu Enterprise Cloud on two PCs, one as Controller, one as a node. I have downloaded two Ubuntu virtual machine images from the Ubuntu Enterprise Cloud Store and can successfully start instances of them with: euca-run-instances -k mykey emi-XXXXXXXX -t c1.medium
If I run this command I can see the instance is running: watch -n5 euca-describe-instances
I can ping the IP address of the VM instance from my Controller but I can't make an SSH connection to it. I'm following the instructions @ [URL] so I have tried connecting with: ssh -i ~/.euca/mykey.priv ubuntu@192.168.1.250
The result is: Permission denied (publickey).
If I try adding -v to the ssh command I get: OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for *
I need to set up an ubuntu 10.04 instance on ec2, but there are some instance ready available I tried with few but I am not really happy with that since those are meant for test puporse.
I have to deploy a java/j2ee based web app with mysql. 1)need to install tomcat 2)java runtime 6 3) apache web server
What would be the best image to use for my requirement and I initially planning to launch with the micro instance if my web app demands I may further move to small and larger instances. So it should be eligible for free usuage tier.
We started our project (it's a website "employee performance appraisal system") in windows by starting with some html forms and then slowlyadded php ,javascript and other stuff in windows we had no issues of insertion and retrieval of data from thedatabase.Now,we decided to shift the entire stuff to drupal the html forms along with those php files but we had 2 issues with this1. the first one was ..we created "page" for each html form and copied the html code into "page" but we didn't find where our pages are getting stored (do they get stored in mysql database that we create for drupal siter do they remain as html pages somwhere?)2.second problem was ...for admin in drupal I gave the username "root" and a password ..similarly for mysql also I gave a password.
now I used phpmyadmin and created another database called "appraisal" which is supposed to hold the data of our website.when I try to insert data into one of the tables of this database (attendance table) ,the following error occured "Attempt to connect failed access denied for user 'root'@'localhost'(using password:NO) cannot run querry insert intoattendance values('x','y')" Access denied for user 'root'@'localhost' (usingpassword:NO)Also I'm unable to access mysql as a normal user only super user can access and can we unset the password that's required to reach mysqlprompt?
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I cannot get into Tomcat Manager or Webmin at all through a browser. For Tomcat, I've restarted, stop/started, and verified that Tomcat is running. I installed Webmin all through apt-get commands so any dependencies should have been installed (first time doing it this way), but cannot get to the login screen. But if I just go to the IP, Apache goes to the "It Works." splash page. Did I miss some set up? Is there an internal firewall in Ubuntu Server edition that needs to be set?
I have installed vsftpd. When I run the command sudo service vsftpd restart, I get the following response: restart: Unknown instance. But if I run the command sudo service vsftpd start, I get the following response: vsftpd start/running, process 3804. To understand what is happening, I run the command ps aux | grep vsftpd, I get root 3805 0.0 0.0 27120 620 ? Ss 14:00 0:00 usr/sbin/vsftpd.
I am able to ftp the root of my EC2 instance of fc12 with a private key. However, I am unable to ftp a user account on a EC2 instance of fc12.I do not know what commands were given to fc12 to create an AMI that uses a private key instead of a password.As root administrator I like it. However, I am trying to set up users in such a way that Windows users using "My Network Places" can access my EC2 instance of fc12. I have created accounts for my users and set a password for each of them (useradd). The problem is that I am unable to ftp the fc12 server with the user name and password. The error message the client gets when it tries to do so says there is no supported authentication method available. I presume I must somehow change server security or something to allow access to users with passwords but I do not know how to do this.
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I need to install a program by using the address http://255.255.255.255. However, when I type this address in my browser, I get the following error: "Failed to connect. Firefox can't establish a connection to the server at 255.255.255.255. Though the site seems valid, the browser was unable to establish a connection." Is there an easy way to put this site into the air?
Today I was creating an Ad Hoc network for sharing internet connection and I realized it is not working. I have done it before on Ubuntu 10.10, now on 11.04 it just doesn't work. I create a new connection (Create New Wireless Network) and it is never visible to the other computers (I checked the IPv4 settings, it was Shared to Other Computers). I really do not know what is going on, my wireless card is working perfectly fine (I can connect to other network and on additional driver it is there with a green circle).
I have a few ubuntu servers which have samba shares on the network and for the most part have had little trouble with them. Recently we purchased a few iMac's for one of our deptartments and, while we're able to access the shares, all the files on them are read-only and we are unable to delete/modify files using the iMacs. This is not an issue with any of our windows machines (W2K, WinXP, Vista).
does somebody know how dnsmasq / iptables need to be configured such that requests to my public IP from lan are correctly NAT'ed to the host that handles them? Currently my routing device treats them like "oh, these are anyway for me, gnam gnam" which actually doesn't work.Unfortunatly setting up NAT rules that redirect requests from my lan correctly as they are redirected from wan is an option I would like to use only if there is no other possibility.I would like some kind of solution that treats packets that are sent to my public IP as normal packets that are not looped back before they even get out. So they would need to be at least sent to the wan gateway where they are directed back where my firewall can successfully treat them like all other public requests.
Is it possible to provide remote Windows users access to a LAN via the Internet when the LAN itself is connected to the Internet via a SOHO router that is assigned an IP address dynamically? An LQ thread from 2004 includes a suggestion to use VPN and DynDNS.com. Is that still a good solution? Are there any security issues?
Assuming:VPN is a good choice. DynDNS.com or similar can be used to give remote clients the public IP address of the SOHO router. the SOHO router is configured to forward VPN traffic to a Linux system acting as the VPN gateway. then, for a LAN of ~20 IP nodes and less than 5 simultaneous remote clients, are there any other VPN server software solutions to consider other than OpenVPN, Openswan and strongswan?
I'm on Natty Narwhal and wanted to play with ssh but I can't seem to get ssh to work without having to specify a password. I've installed openssh-server. I've generated a public/private key pair:
ssh-keygen
I can see my id_rsa and id_rsa.pub and known_hosts.
am logged in as user pgroarke and simply trying to run ssh on the same box. Regardless of whether I specify either localhost or hostname I still get asked for a password:
ssh -i ~/.ssh/id_rsa.pub pgroarke@spock date pgroarke@spock's password: Here is the relevant contents of my /var/log/auth: Jun 18 16:21:37 spock sshd[30357]: last message repeated 2 times
I recently installed Ubuntu 10.10 on my sister's HPtx2000 since she isn't going to use it anymore and it worked better than I expect. The touchscreen works without any additional driver tweaking and installation <3, the wireless works fine, the sound works. I listed those because when i was installing, I was looking around at other people that did this and those were the problems they had (but those was of an old OS).
Well anyways, what I want to ask is about the stuff that doesn't work and the stuff I want to do: The buttons that flip the screen and etc doesn't work. Is there a way to map them and flip the orientation of the screen? And the other buttons too, like the media button. Is there a way to map them to open VLC or something? Does anyone know any tablet programs for Ubuntu? E.g a simple text program that can convert stuff written to neat, typed font? A way to write text into a google search bar using the stylus? And while we're on this, is there a way to map a left click on the touch screen?
In Windows, the left click could be mapped to: a). a side button of the pen, b) the top button of the pen, and c) holding the pen down onto the touchscreen. how to use Samba to access a public folder of a Windows computer? And to access the printer connect to the Windows computer? Some of the tutorials I found were only for folders and printers on the Ubuntu computer.
I have two nagging problems on one network which I do not have on another elsewhere, both using uptodate Debian servers. The server is on the private subnet behind a router/adsl modem. The symptoms of the one which does not work
1) Users cannot access their web site from lan. If they try, they get to the router web interface, same as if they entered http:10.0.0.138 which is the router's lan address.
2) Users cannot access smtp or pop3 service using the domain name, they can access it only using the servers LAN address.
I fear that I might have not set up the router properly because appart from that the two servers are almost identical but I do not know where I might have made an error.
In my house I have a small computer running ubuntu karmic that works as a server/media center.
I would like to have a folder (my ~/public folder) openly available to the entire world via anonymous ftp.
I have read somewhere that the defauld vsftpd config is basically this: no local user login, anon only and sharing a folder called /home/ftp, but I can't get this to work.
