Ubuntu :: IP Address Cannot Be Accessed Externally?
Apr 22, 2010
I have finished something simple and would like some people to test it, and when I gave my url of my website that sits on my computer to someone, the response was that she kept getting messages saying that connection has been reset. She tried for a couple of times and could not see my website, which the address is accurate.
Are there specific things I need to do to allow users to see my site? Yet, why does she not get messages saying that "failed to access" or something like that?
We've just setup an Ubuntu server as our main web server. The site's domain, say mydomain.com, has its DNS hosted elsewhere. A records are pointed to the IP address of the new server, so far so good. Email is however handled elsewhere. Sending mail to _anything but_ mydomain.com works fine. However when i try to send mail to me@mydomain.com the mail ends in /var/mail/me
I'm using Ubuntu 9.04 x86_64 and trying to setup SSH to connect to my machine externally. The open ssh server is already installed and I can using ssh localhost. Moreover, I also forward port 22 to my machine and check using [URL] Everything seem to be ok, but when I trying to connect using ssh -vvv <ip-address> I receive the following common error:
It's more just straight networking rather than Linux related - possibly a rather large gap in my knowledge.Been asked to set up a Linux firewall / router for a friend, and he wants an external address on his PC and his firewall. He's got a /30... ISP seem to think this is normal. My understanding was different router interfaces should be in different subnets when it comes to addressing. eg:
WAN 1.1.1.1LAN 192.168.1.1/24 (then PC 192.168.1.2)This is how I'd set up an enterprise router, and from memory how I had to regurgitate networking for my Cisco exams. But they would have been large devices within a BGP environment, how does this compare to home use? Can you have interfaces on the same router within in the same subnet? I'm looking for the real world answer - not my CCNA answer or the config addressing scheme I just blindly followed...Is this right or can different interfaces be in the same subnet?If they can be in different subnets How would you do that with an eternal 1.1.1.1/30? egWAN 1.1.1.1LAN (what IP?) then PC 1.1.1.2Would you actually just set the router up as a /29 and then use the additional IP addresses for the LAN NIC on the router? (yes I'm aware you couldn't route to where it had actually been allocated)
Then with that how do I route the 1.1.1.1/30? Which interface do I point it at? Even with a /29 I'd still have a routing issue right?Or are the ISP expecting you to do something with NAT / port forwarding. (and yes I could do this to get it working - but I want to understand it better) I'm asking the question here, because rather than just wanting a magic file to get things working, I'd actually rather understand the principles rather than just press a button and have it work.
I have 2 servers operating on my home network. One server hosts Bind9 and a few web sites. The other is an Ubuntu repo mirror that I recently configured (10.1.10.26). Inside my network, requests to the olyubuntu.nwlinux domain function as it should. However, external requests do not get forwarded. Instead, they end up at my DNS box at 10.1.10.25. Again, internal requests are forwarded correctly.Any red flags pop-up as to why this is occurring? Firewalls are not an issue.
I am connecting a complete set of four hard disks externally to my linux server.I have certain queries on that
1. How to make it detected. Will the cd which had come with that will install the required drivers? 2. How the cd drive will work out in linux? 3. How to configure all the 4 HDD into one LVM? 4 How to remove an already installed software from a linux system?
Usually the menu bar, and menus, are displayed within the applications main window. With a small screen this obviously wastes space so my idea is to reserve a location, small square space probably on a corner, on the screen that when clicked it will pop out the current selected applications menu, allow selection, and then disappear again. The application itself would look fullscreen, or if windowed will still not have a menu bar but access available via the "square."
Likewise instead of the usual task bar and "applications/places/system" menus (ala, ubuntu) a second square would be reserved which would pop-out and show the running tasks, followed by the menus, and allow selection, then disappear. Is this possible with GTK+ as it stands, as I'm guessing that by default everything must be contained within an applications main window?
Although having said that, gimp allows the tool windows to be external to the edited document, so perhaps it would be possible to make the menu bar into a toolbox? I guess the difficult problem would be how to make the currently selected applications "tool square" be on top when there could be multiple applications running. The "tool square" and "task/menu square" could be transparent (maybe just an outline) so that although always there they wouldn't hide any underlying windows/programs/etc.
Basically the idea is to get rid of wasted screen, in ubuntu (on gtk/gnome) a minimum of 5 "bars" is wasted screen real-estate:- 1, Running aplications: 2, Ubuntu's main menu bar: 3, Applications status bar: 4, Applications menu bar: 5, Applications description (min/max/close) bar. Take all the above and replace it with two clickable, potentially invisible, squares say where the default "hide all windows" and "deleted trashcan" icons currently reside.
This has happened several times now, with 9.10 and 10.04. I back up my photos periodically to external drives, using Nautilus. At the next attempted login Gnome won't start and sometimes gives power manager incorrect installation error.
First time this happened I was stumped and eventually did a clean install. Second time, I found advice elsewhere in this forum to solve this by emptying root trash, which did the trick. This time, however, root trash has nothing in it and 2 users trash were insignificant (I emptied them all anyway with rm -r). Tried looking for enormous directories but couldn't find a smoking gun. I would rather not end up doing another clean install - a painful and extreme solution. I'm continuing to look for solutions to the immediate problem, but my question really is, what causes this and how do I prevent it in the future? I've run Computer Janitor regularly and ran apt-get clean but no help. Should I do all my large scale copying from terminal? I'm not a total noob, but close.
Alright guys, I've looked over every thread regarding this issue on this forum, and many others; yet I cannot find out why my mail is being bounced without error from my external gmail account.From what I've seen, you guys need to start off by seeing my postconf -n
I created LAMP server with a wordpress site. I created a sites-available file for the wordpress file pointing to the wordpress directory. Within my server it goes to the site properly. However I also made this server a DNS server, had another test pc use it as a DNS server and it only got the default apache page unless I added /wordpress to the url which makes it point to the directory within /var/www/ that it belongs, but then the wordpress links don't work and this is not what I want it to do anyway. I do not understand why it is working properly internally but not externally. It makes me think maybe the sites-available file is not allowing outside access appropriate permission to use it or something. Can somebody please point me in the right direction I have been working on this for weeks and I am starting to get really frustrated with it. Tell me what config files can help you figure out my issue. Also I eliminated the default index.html file so it wouldn't use it, then placed the index.php file from wordpress in /var/www/ root but in that configuration it doesn't load anything by default but will still work if you point to /wordpress. I believe I have to make some change to my apache2 configs to allow outside PCs to be pointed to the right root directory for the virtual host like is being done internally, I just don't know where to start.
Have previously moved my ssh server from 22 to 4455 just by moving the port in sshd_config. This is done to minimize the log entries resulting from brute force attacks.However, it seems like Zimbra and other local services expect to find the ssh service locally available on port 22, so I figured it's better to move the port in the firewall so that it remains configured on port 22 in sshd_config, and instead use iptables with a nat/port rewrite to move 4455 incoming to 22 locally.
Isolated this works as long as I also keep allowing port 22, but the moment I close port 22, port 4455 is also dead, which sort of defies the purpose
So I keep reading that bonding ethernet devices is supposed to be easy. I have followed several tutorials and tried a few things on my own, and I can't seem to get it right. I currently have a setup that allows me to ping internally on my network, but when I try to ping externally I get the error: connect: Network is unreachable
Before I bonded the interface my connection worked fine. Here are my config files. I am running centos 5.3 on a virtual machine. /etc/sysconfig/network-scripts/ifcfg-bond0
i'm setting up apache on 5.3. i can access the apache test page without a problem from the server via URL... But i can't figure out how to access this page from another computer within the domain (for when i upload my home page.
I have Ubuntu 10.04 x86 installed, trying to get teamspeak 3 beta30.I have followed this guide: http://robert.penz.name/296/howto-in...u-10-04-lucid/
And can not get my network setup correctly to allow people to connect externally from my LAN. I have forwarded every relevant port I could find to the computer hosting TS, I forwarded them first as their respective protocols, and then as the combined UDP/TCP. I tried Forwarding single port numbers, and then port ranges.I have also tried uninstalling selinux.I have tried connecting directly to my cable modem with the server.I had this working perfectly three months ago with all the same software, using the same guide I listed above.The only thing I can imagine has changed is my operating system itself with system updates.
My network looks like:
Comcast cable modem--->Netgear WNR3500L Router----->Ubuntu 10.04 x86 desktop edition
what else I could possibly check? I can connect to and manage the TS server fine using localhost:9987 or 192.168.1.x:9987, it just wont allow any connections from outside the network.
My server is Ubuntu 10.04 which is used to test an Open ERP system. However, once I setup everything and trying to be access from other workstations, it doesn't work! Also, the server cannot found any Windows PCs in the network.
I have installed ubuntu9.10-desktop-i386,then I install the vsftpd to transfer files with my another computer which own a win xp os.And the ip ofin computer is "192.168.2.10",this address is fixed.the ip of the Ubuntu compuer is "92.168.11.1",the address is dynamic,since I use the wireless network.When I startup the ftp server in my ubuntu, I can not access it from my win computer,but I can access it in my ubuntu .However when I startup the tomcat in my win machine, I can access it in my ubuntu using"http://192.168.2.10:8080/files
I have a teenage daughter that understands Ubuntu, but not so much the terminal, and she does not know the superuser password. Unfortunately, she regularly goes on the Internet during the nighttime and in the early morning. What I am attempting to do is prevent anyone from going onto the Internet during the night (11 PM - 5:30 AM) unless they know the superuser password or a fair bit about the terminal.
I have already tried some commands, however all of them can be bypassed by restarting the computer. ex. sudo ifconfig eth0 down
For additional information on my Internet:
My Internet connection is relatively slow, so I would prefer if the solution does not hinder it any further. It is slow because there is no high-speed in my area, and I am forced to use Xplorenet -> "Fixed Wireless". I do not have a router.
I have installed ubuntu 10.10 inside windows using wubi installer on drive "D".Now inside ubuntu I can excess contents of all other drives except drive "D". Why it is so? Is there an way to access the data on drive "D" within ubuntu?
In order to get internet access at my school I have to log into a vpn. No other addresses can be accessed before login. With XP the login is authenticated through the browser (IE and Firefox supported) and run by a juniper network connect applet.
Now when I try to do this in firefox in Ubuntu it tells me that I'm not allowed to login. So I started doing a little research and found out that I should be able to authenticate with VPNC. Trouble is I can't get internet to install anything. Which means I have to download the packages in XP and reboot into Ubuntu. And every time I hit a snag I have to reboot into XP to look up what I need to do. So what I'm wondering is if there is some work around that will get me logged in (maybe through the browser authentication?) so that I can work through issues in one os instead of two?
My Ubuntu 10.04 freezes continually when it starts accessing the HDD. I will be working normally, then when i switch windows, it will suddenly access the HDD and spin up for 4 to 7 mins. I can't access anything during this period. The processor is generally only 1-5% impacted during this. I think its accessing the swap.
I admit, it's an older computer with only 2gb of RAM. Wondering how to debug this and if I should install an older version of Ubuntu to fix the issue. I've tried three different harddrives, so i know it's not errors on the disk.
I recently set up a computer running Ubuntu 9.10 Desktop for use as a server, and successfully have it hosting game servers.I'm relatively new to Ubuntu, so I'm not sure how to go about this, but ideally I would like a user to be able to access a single folder on the server over the internet, and be able to upload and download files from it.It would be nice to set up multiple folders like this, so different people would have access to their own personal folder, but not anyone else's.
Few years ago i tried a linux in a browser, i do not remember the distro. I'm currently trying to find a distro that where the X session can be accessed via the browser
I have two networks on a server. One being my internal network, and the other being an external IP address. This is on Debian Lenny. Here is my /etc/network/interfaces file:
I can reboot my system and sometimes eth1 is accessible from SSH, and other times eth0 is accessible. Then sometimes eth1 will just stop being pingable alltogether. This is a fairly fresh install of Debian, and the only thing I have running is VMWare Server 2.0, bridged to both of my network connections.
