Ubuntu Networking :: Suddenly Don't Have Localhost?
Mar 30, 2010
I tend to forget stuff if I don't work with it for awhile. somehow I struggled through and figured out (with a lot of help) how to set up Ubuntu Intrepid server edition on my computer, and am serving my website from my computer. For times when the free DNS nameserver is 'closed' (often lol) I use localhost and can see/work on my site. Suddenly, when I type localhost into the address bar, I get a blank page, nothing! I'm not sure what to do....can someone please help because am going to use my website to present a class project, and was going to use localhost (bring my computer) in case the nameserver was down, I have to be able to display it.
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Mar 14, 2011
I've been using Kubuntu Lucid on a Compaq tc4200 for nearly a month now. Suddenly today I logged into my machine and found that I couldn't connect to anything, Internet, LAN, router, nothing!Upon further investigation, I found that networking services weren't turned on at all!I tried manually starting the network service using
Code:
sudo service networking start
sudo /etc/init.d/networking start
[code]....
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Feb 9, 2010
PVM 3.4.6 cannot add localhost. It says it can't find pvmd3, but why is it even looking for that when that is not part of the installation?
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Jun 6, 2010
So i was trying to Wget some files from a server to test how much i know about Wget. Running Karmic.I think it connecting to localhost is wrong right?
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Apr 26, 2011
When i try to connect to MySQL database with MySQL Workbench using root@localhost i get following message: Failed to Connect to MySQL at localhost:3306 with user root
Access denied for user 'root'@'192.168.0.1' (using pasword: YES) which is ok, becouse 192.168.0.1 is not listed as a host from which MySQL server should accept connections.
I am a little confused, becouse i tell MySQL Workbench to connect using localhost, so server should (at least i think so) receive connection from 127.0.0.1
I think i had similar issue with PostgreSQL some time ago, but i just allowed connections from 192.168.0.1 then.
My host file is:
Code:
127.0.0.1 localhost
127.0.0.1 localhost.localdomain localhost
#::1 ent-pc localhost6.localdomain6 localhost6
127.0.0.1 ent-pc
[Code]...
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May 24, 2011
i re-installed ubuntu 11.04 two days ago, to join 2 partitons into 1,anyway i then setup vnc and ssh as normal but now it just times out on both when trying to connect is there a firewall or something in place by default?ports show as open when scanning my external isp address, ubuntu box is in the dmz so no need for ports being forwarded.i also cannot connect via localhost, the above testing i could not connect from my worki can also netcat to my external ip via ssh/vnc ports and read the banners fine?
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May 27, 2010
I have a laptop with Apache, MySQL, PHP, etc, and I'm able to work on web programming on my local server while at home, connected to my network. But I would like to be able to work on the local websites when I'm not connected to any networks, both for demonstrating a site, or simply working on it.
I was surprised to find that I could not connect to localhost at all without a network connection. I tried my normal Google for a solution, but, of course, that was futile without a network.
Now, I'm at home, and of course, it works because I have wireless. I don't really want to disconnect that to figure it out, so I thought maybe some nice soul here might know how to do this. Surely it can't be hard, can it? But, it's certainly not obvious.
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Jul 22, 2010
i know it all sounds weard but ive been searching google so much now.. look the setup is kinda straight forward. We got a test server for websites. This server has lamp server configured. Now i have a Website in the apache www folder. From here on everything works fine in http://localhost or 127.0.1.1 etc etc. also i have configured virtualhosts. This so we can have a live enviroment but its actually a test enviroment.
Now i try to connect trough the lannetwork! so i goto my windows client and hit in the browser :http://(serverip+port) and also tried http://(serverip) When i do this i get a 403 forbiddin acces. I solved that problem by deleted a line in the apache2.conf wot was called : virtualHost xxx.xxx.xxx.xx: xx
Now Hes loading the page but says he cant connect to 127.0.1.1 Any1 knows a solution? (sorry for my bad grammer btw )
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Oct 19, 2010
Is there a way to only accept SSH Tunneled VNC connections from localhost? I would like to close port 5900 on my router and only have SSH open.
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Dec 31, 2010
I have an application that listens to port 5744. I send to it a command from a terminal like this
Code:
echo my-command > /dev/tcp/localhost/5744
and replies
[code]....
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May 5, 2011
I've got problem with Avahi on my laptop. It can see the other machines and services on the LAN but not it's own local services and I have no idea why. The laptop (hostname: forseti) sports Ubuntu 10.10, installed aavahi-daemon, avahi-dnsconfd and libapache2-mod-dnssd. Firewall is disabled. Other hosts on the LAN are: magni (openSuSE 11.4 with lots of services published and visible from forseti) and freya (Ubuntu 10.10 with gnome-user-share up & running). Forseti can see the other hosts and their services but not itself. The other hosts can't see forseti. Checked both with nautilus and CLI's avahi-browse.
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Jul 22, 2011
One of the computers attached to the network is giving localhost instead of 192.168.x.x in Remote Desktop config page therefore I'm unable to access it:
Quote: Your desktop is only reachable over the local network. Others can access your computer using the address localhost. Other computer and even other accounts on the same computer are showing something like:
Quote: Your desktop is only reachable over the local network. Others can access your computer using the address 192.168.0.8. How can I fix this?
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Oct 30, 2010
I'm trying to copy folders from one ubuntu machine to another. Both have ssh and openssh-server installed and have worked in the past.ing "scp -r Pictures username@192.168.1.1:/home/username" after entering the remote password, I get a bunch of lines.
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Dec 30, 2010
I am running the HTTP server (Jetty) from Eclipse IDE, which listens on port 8888. I can connect to it in the browser with URL [URL] but not with http://192.168.1.100:8888/home, where 192.168.1.100 is my local IP. Not from this PC or any other PC in the LAN. Firewall is disabled. I can successfully ping to 192.168.1.100. I can share from this PC with SAMBA.
All configuration and logs look fine.
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Jul 8, 2010
I'm having trouble pinging localhost, specifically, pinging localhost when I'm not connected to a network. When I try it keeps telling me the operation is not permitted:
Code:
matt@mubuntu:~$ ping localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
if I connect to the network, start pinging then disconnect it continues pinging. Google seems to think it could be something to do with my iptables setup:
Code:
matt@mubuntu:~$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
[code]....
When not connected to network
Code:
matt@mubuntu:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
But as far as I can tell there isn't anything in there which would stop me connecting to the localhost (I also can't connect to my local apache instance when offline)... (It's worth mentioning that a couple of weeks ago I had the pc setup to share it's internet connection with a laptop, ala this guide, however I've since disabled the iptables rules and disabled ip forwarding.)
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Jan 7, 2011
Installed apache2 and php5, got the message "It works!" and phpinfo() displays the info page from withing the my folder. But when i put my index.php and rest of the files in www/mysite/ I only get a blank page displaying nothing, as if my php scripts wont parse. If I create a plain html "hello world" doc it displays that.. I've used this guide before [URL] and got it to work last time some months ago, but this time around after clean ubuntu reinstall it's showing nothing, remember I struggled with some permission things last time doing sudo chmod a+rwx /var/www/* and same for subfolders css and images. but now nothing happens, no errors or nothing. I didnt have to do enything else last time, no php.ini or nothing, it just worked, after I set permissions to get css and images to display correctly. Tried to put my files in www alone but dont work either (also cannot delete the default index.html in the www folder). Tried to restart apache2 and the computer, but no luck. My site also works online from other servers, so this is a local problem.
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Jul 16, 2011
I'm going to be going off to college in the fall and the internet probably won't be blazing fast like it is at home, so I was wanting to set my desktop up so that it would act as a local cache of the parts of the internet i frequent the most, but I can't find anything like that. All the tutorials I've found are either for sharing the load on a server or for setting up a separate machine as the squid.
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Aug 8, 2011
I have developed a site in localhost in my laptop. Here are the specs: Ubuntu 11.04, Joomla! 1.7, Db Ver: 5.1.54-1ubuntu4, PHP Ver: 5.3.5, Web Server Apache/2.2.17
This laptop is connected to a wi-fi network. Task: I like to see this local site from my laptop to other desktop computers in the same network. I understand that I need to do some changes in /etc/hosts what changes I need to do to be able to see my localhost site in the network.
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Apr 21, 2011
I've been running Ubuntu 10.10 (Maverick) x64 quite happily on my Dell e6500 for the past few months until today when I woke the computer up from sleep mode and could not use the wireless. The network-manager applet simply has 'Wireless' greyed out. I tried rebooting, thinking it was an issue with the wireless card not re-powering on properly after sleep, but to no avail. how to begin here?
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Jul 2, 2011
My internet connection was just perfect until yesterday it stopped working. I used to connect via wireless and suddenly its not working any more, I use a Dell Inspiron 15R model.
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Aug 2, 2011
I used my computer this morning before leaving for the office, but when I returned this evening, I am unable to reach the internet. Also the light on the mobo where the ethernet cable is plugged in is steady yellow.
My limited experience would tell me it is a hardware failure, but it seems so strange with nothing happening during the day. How might I best diagnose the problem from within Ubuntu (10.04)?
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Oct 13, 2010
I've started to set up a server at my house, where I eventually want to run it headless, and I can just VNC in from my other Desktop. I installed Ubuntu 10.10, setup remote desktop on the server, and from there was able to do any work remotely. That was nice. I turn the computer off at night, and the next day when I was going to work on it, I cannot VNC in anymore. One day passed, and now every time I try to use VNC it comes up with "Failed to connect to server" I also set a static IP address on the server too, so I know the address isn't changing every so often.
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May 2, 2010
i am trying to use a local DNS service (unbound), and for that, i want each connection (eth0, wlan0) to first use localhost as DNS (127.0.0.1) and then try the DNSs it gets from the DHCP. this is a laptop so it is not just setting it for a single connection but a system default.
i looked and searched and there does not seem to be a straightforward way of doing it. i am usign gnome with networkmanager, and setting the method as "get IP only" is not suitable, as it omits the DHCP-provided DNSs, and also cannot be set as the default method.
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Jul 28, 2010
I am looking how to fix a problem like is in the subject. I searched internet and lots of people wrote that to fix this problem need to add a line in /etc/hosts file:127.0.0.1 localhostMoreover i added later also line:127.0.0.1 localhost.localdomain localhostbut it didn't help.
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Mar 21, 2010
I am running Karmic on a Compaq Presario V3000 and this morning my wireless card is not being detected by Ubuntu's NetworkManager. I have no idea what caused this... literally, it was working when I shutdown my laptop last night. When I right-click the NetworkManager icon in the panel it does not show "Enable Wireless" (only "Enable Networking"). When I run ifconfig in terminal it shows my wireless card as being there (UP Broadcast Multicast). One weird thing - on the front of the laptop there is an LED which lights up blue when the card is working (ie normally), but right now it is orange (ie, if you flick the switch on the front of the laptop to toggle the wifi on or off... I have toggled it back and forth but nothing changes!)
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May 26, 2010
Hope this saves some1 an immense amount of time;First type this;
Code:
rfkill list
check if the problem looks like this
[code]....
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Jul 24, 2010
I'm using Ubuntu 10.04. I was happily connected to internet and surfing some forum, when wireless connection suddenly stopped working.
Now I can't find any access point, and I'm pretty sure I didn't do anything to justify this behaviour.
It already happened a month ago, but I had to format my drive, so I didn't really bother to try to solve the problem.
Anyway. I'm posting here the results of the commands I think I can help with a diagnosis; if something else is needed.
I'm using a different computer to post this thread, so I'm manually writing the output.
Code:
sudo iwconfig wlan0
wlan 0 IEEE 802.11bg ESSID: off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
sudo iwlist wlan0 scan
wlan0 No scan results
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Aug 12, 2010
Version: Ubuntu 10.04 Relavant hardware: P5QL Pro built-in ethernet, cable modem with linksys wireless-G router (although problem is with ethernet connection, not wireless)
One minute my ethernet was working, and the next it stopped working. The only thing that I did between it working and not working was install electricsheep from Synaptic and then I shut down the computer. When I restarted a bit later, no ethernet connection shows up.
I checked the cables, made sure they are in tight.
My laptop connects using the same ethernet cable fine. So its not the cable or the router.
I reset the router and the computer at the same time. Still doesn't work.
I don't know where to even start with troubleshooting this sort of problem. Everything to the extent of my computer knowledge seems to be working fine.
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Dec 21, 2010
I have three computers on the network, one is using Windows Vista, one is in an office room using Ubuntu 10.10, and one is in the living room using Ubuntu 10.10. All three computers have folders shared, and were all three reading files just fine with one another for a couple of months. To share the folders, I just right clicked on them, selected sharing options, and checked the boxes for "share this folder" and "guest access". Both Ubuntu computers have samba installed and configured so the Vista computer can see their shares. Tonight, the Ubuntu computer in the living room stopped being able to see the other computers under places -> network. The other Ubuntu computer and Vista computer can still see each other's shares just fine.
I also created a test share folder with a file in it on the living room Ubuntu computer, and it can be seen by the other Ubuntu computer. I can ping the computer in the living room, and the computer in the living room can ping the other two computers. I set a static IP address on the Ubuntu computer in the living room to rule out an IP address conflict. Under network, if I go to "go -> location..." I'm not quite sure what to type in there to find other computers. Under places -> network, the only thing that comes up on the Ubuntu computer in the living room is it's own shares. I tried using the search feature, but was unable to come up with anything resembling my particular problem within a reasonable amount of time.
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Dec 28, 2010
Only been using linux for about 2 weeks now. Yesterday my internet worked without a hitch now today all of a sudden it wont connect. I had the "Install problem! The configurataion defaults for gnome manager have not been installed correctly" so I deleted my music directory and now it boots fine, dont know if that might be part of the issue/ I dual boot win7 and i can get wireless on that partition but not ubuntu
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