Until yesterday everthing was working perfectly. Today I started my Debian Lenny and internet doesn't work. I can't ping my router successfully:
Code:
takada:/home/sam# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.97 icmp_seq=1 Destination Host Unreachable
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i don't understand what I am doing wrong. I started a CentOS Vm through Vmware server 1.05 When I run the machine I preform Dhclient and my machine gets an IP internet works fine.
When I change my IP to static everything stops working I cant ping anything anymore I cant ping my server I cant ping my gateway I cant ping google My config is done through Webmin but I know it can also be done through /etc/sysconfig/network-scripts/ifcfg-eth0 My hosts file has this
127.0.0.1 localhost srvspam
my /etc/sysconfig/network-scripts/ifcfg-eth0 file has this
BOOTPROTO=none
NAME=""
MACADDR=""
HWADDR=00:0C:29:59:91:DE
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I am using Debian 5 and I have some networking experience, however I want to learn to do this the best way possible. I have a Debian box with two nics and I want to connect that to a switch and use my Debian box as a router basically, as well as having a firewall setup within that too.
Should I use iptables to set up nat or the route command or what? I just want to know the group of tools to use in order to set up my network. Network diagram: Internet <------> Debian Box <----> switch <----> hosts I found some guides but they are for linux 2.4 and i'm not sure if they are right.
I am working on Redhat Linux. While connecting internet through modem.Modem is configured. After activate both modem(ppp0) and eth0. When i restart my network service it is showing RTNETLINK :network isn't reachable...
View 1 Replies View RelatedI have been using ubuntu 10.04 LTS for the last 5 months, used tata photon plus for networking. Everything went fine when couple of days ago, after doing normal updates as listed by the update manager, sound went off.. to solve this, I had to remove and reinstall certain packages as listed in [URL] ...+documentation, I had to restart, after restarting, the sound problem was gone but the network manager icon went off, the modem was not getting power from the computer though the LAN wire was connected. To add to dismay, the mobile broadband connections that I had added to the network manager were gone. I tried adding the tata photon plus (huwaein) again but could not be added, reinstalled usb-mode switch data and related packages, but still the computer does not detect the photon as usb device. I have broadband dsl connection and tata photon plus too but cant use any of them.
View 3 Replies View RelatedI 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.
My problem is that my wireless network traffic sometimes just stop.Like when I tries to update my system, update NetBeans or just download using Uget. I have no clue on what's wrong,Here is my system info:
Laptop model:
Code:
Lenovo R500
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I have a remote machine on which my server application runs. The remote server is linux based. What and all steps I would required do to IDENTIFY and SOLVE if The server is not reachable
View 2 Replies View RelatedRight so yesterday my internet worked fine. Today - no connection at all. The light for my cable on the router doesn't even show up. I originally had indicator-network installed, so when the internet first stopped working, I tried a few other options such as tethering to my phone via usb and bluetooth (which I have successfully used in the past). However, these didn't work, and I figured that as connman is still in beta, maybe that was why. So I reinstalled network-manager and network-manager-gnome via a usb stick, uninstalled indicator-network, and rebooted the computer. Still no internet.
When I click on the applet, it says "No network devices are available". This is odd, as I definitely have a network device... it is part of the motherboard. So I thought I'd do the SMARTlan test or whatever it's called. It's part of my BIOS, so I ran that and it returned results that I (kinda) expected: when the cable wasn't plugged in, it returned one set of results. When it was only plugged into my computer (and not the router), it returned another set of results. And when it was plugged into both my computer and the router, it returned a third set of results. So that leads me to believe the cable itself is fine.
And when I move the cable to a different port on the router, nothing changes. The corresponding light still doesn't come on. Network-manager, telling there are no network devices. The BIOS can see the ethernet port and the cable. And the router is functioning perfectly for my parents' computer and my ps3. And I have checked the cable to my computer for physical damage - it follows the same path as the one to my ps3, and on top of that, nothing physical can possibly have happened to it in the last day. This happened once before, except I don't think the network devices were lost.
I'm using ubuntu 10.4The hardware is a usb adapter with ew-7718unThe network is recognized, but never succeeded to connect. all the network setting are equal to a laptop which connect using on-board card (same linux distribution). the adapter performed well on windows. The problem persist with two different computers both with ubuntu 10.4
View 1 Replies View RelatedI have a remote machine on which my server application runs. The remote server is linux based. What and all steps I would required do to IDENTIFY and SOLVE for following two problems
1. The server is not reachable
I thought to uninstall Gnome Network manager since it was always asking for to connect with wireless internet but it was working fine with wired internet.I uninstalled it and installed wicd. and then for some unknown reasons the internet disappeared.Kindly let me know How can i get back network manager without having internet and make internet work on my computer.I did searched a lot on Ubuntu forums using somone's else computer but no success.So if you let me know how to approach the problem in right manner it shal be great .
View 6 Replies View RelatedI dont even know where to start looking on Google.Just in case this matters, for completeness.I've an inactive eth0 (wired ethernet link) with static IP.Other possibly relevant details:I'm using an old 802.11b card. Cant imagine this is relevant, because the internet is working fine as far as pinging anything outside the local network goes.
View 2 Replies View RelatedWas trying to understand the behavior of TCP when the server becomes unreachable . For this I am using vsftpd and the default linux ftp client to check the behavior.I was trying the following things. Was Trying to download a file from an FTP server using the FTP client as anonymous user. While the file is getting downloaded, I removed the network cable from the FTP server to understand the behavior of TCP when the server becomes unreachable.
As per the functionality of TCP/IP , when the server becomes unreachable for whatever reason , the client tries retransmitting the data till it can send the data or it timeouts. But in my above experiment using FTP , I can see that the FTP client is not trying to retransmit data at all . This I came to know using by sniffing FTP traffic at the client side. Is this expected or default FTP client available in Linux does not obey TCP/IP functionality properly ?
Running Ubuntu 9.10. In the Remote Desktop config dialog I get: "Your desktop is only reachable over the local network. Others can access your computer using the address 127.0.0.1 or tabatha.local." I understand this means only the loopback ip address is available. All my other machines show their true local ip address (e.g., 192.168.1.104) in this dialog. Thus I cannot log on to this desktop from other machines.
When I try to do a remote logon from another Ubuntu 9.10 box (or from an XP box using a VNC viewer), I get: "Connection to 192.168.1.102 has been closed." What steps are needed to make this machine show its actual ip address? All file sharing between the various machines is working properly and all windows shares back and forth between XP and 'nix, and among the the vaious XP boxes and linux boxes are available as designed.
I installed a fresh copy of Ubuntu 11.04 on my server about 2 weeks ago, I setup remote desktop and figured to just leave the password field out as it suppose to be pre-configured to only accept local connections, well, apparently not. I was noticing some strange network activity and checked my router connections and sure enough I see port 5900 to the server, open vino icon and see that there is someone else connected! (IP of unauthorized user: 77.29.51.239 ).. Immediately kick them and set a password. This should really be addressed and/or a password should be defaulted or at the very least the "Your desktop is only reachable over the local network." should be removed.
View 9 Replies View RelatedI have installed php 5.3.6-4 on centOS 5.6. When i try to install some modules of php then it gives an error
php53-common-5.3.3-1.el5_6.1.i386 from updates has depsolving problems
--> php53-common conflicts with php-common
Error: php53-common conflicts with php-common
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I have reinstall it twice but each time i get same error.
I have the following scenario:
- Server installed in wired network. The server has a static IP. It has Ubuntu Server 9.10 installed.
- I have two Ubuntu notebooks (Ubuntu Desktop 9.10) and I want them to connect (mount) to the server on bootup (fstab or equal) if the network is available.
- I don't want to store the password in cleartext in the fstab file. So what other options do I have? What would be the most common practice here?
Today I changed my home router's security setting from WPA to WPA2, and my openSUSE 11.4 Tumbleweed system's network stopped working.It is very strange, because it can connect to the wireless no problem and it gets ip address and everything, but I cannot access any websites. I tried to revert the router setting back to WPA, but still the same.Funny thing is I can actually open the router admin page.
Even I plugged the wired lan cable to my laptop, but still the same. It connects, but no internet.Where should I look? My the other laptop with openSUSE 11.4 connects to the same router without any problem.
I am trying setup nfs mount points on my system. when i try to restart nfs-common servic, I get following error. client :~ sudo /etc/init.d/nfs-common restart bash: /etc/init.d/nfs-common: No such file or directory
apt-get install nfs-common gives this message :
apt-get install nfs-common
Reading package lists... Done
Building dependency tree
Reading state information...
nfs-common is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.what am i doing wrong? I'm running Linux client 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 02:39:34 UTC 2010 x86_64 GNU/Linux (karmic)
I'm trying to simulate a script for two UES connected with a high speed common channel. The file is the same I've used in not enhanced umts with some changes, and it worked perfectly. The changes are indicated in the EURANE guide.
There are two lines of code:
Code:
$bs setErrorTrace 0 "UE1_trace_file"
$bs setErrorTrace 1 "UE2_trace_file"
that give me an error when I try to run the file .tcl
I've downloaded files I needed from EURANE page: SNRBLERMatrix and Ray_corr-3kmh-300m-0-200s-UEnr1,Ray_corr-3kmh-500m-0-200s-UEnr1,Ray_corr-3kmh-700m-0-200s-UEnr1
I've tried to use the first and the third for UE1 and UE2 respectively
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I edit: The definition of the connection of TCP agents and sinks was incorrect.
I have a DNS server with 3 zonesone is dynamic with an associated reverse and one is static
Everything was fine until I added a single host in the staticzone then the server stopped resolving names in that zoneThe only way I could get it to work again was delete the whole zone and re enter the zone and hosts
I hope I am not repeating a thread. I am trying something very simple: To remotely connect from a ubuntu desktop to another ubuntu server (physically not reachable). When I ping the server, it seems to be fine. However, when I try to ssh, the connection is closed by the host. I am the only one using the server. It worked fine a few hours ago and I was trying to copy a lot of data using a couple of scp sessions. At some point the connection was closed and I cannot access the server anymore.
View 2 Replies View RelatedJust for information in case if it is important to start dhcpd and named: Sep 16 20:26:44 LINUX-SRV named[2417]: nss_ldap: could not search LDAP server - Server is unavailable Sep 16 20:26:44 LINUX-SRV named[2417]: nss_ldap: could not search LDAP server - Server is unavailable
Secondly Both config files in /etc/sysconfig set parameters to start in jail root but
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I have an Atheros ar5007eg wireless card, and I haven't had problems with this card in GNOME. However, when I made the switch to KDE recently, I can't connect to any wireless networks. A wired connection works fine (that's how I'm writing this), but when I try to connect to any wireless network, it hangs at Acquiring IP Address, then asks me for my WEP key again, I enter it, and the process starts over. I tried using WICD, but I'm not sure if I set it up properly.
View 2 Replies View RelatedI'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
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I have a A7V8X-X motherboard with VT6102 [Rhine-II] on board network device. Internet connections work fine for long time on openSuse 10.3, 11.1 11.2 and 11.3. But since a few weeks ago, internet connections began to fail: several times when I want to open any Internet site with Firefox, it answers:
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need to talk to ubuntu 10.04 via normal telnet. nstalled telnet from repository, this allows me now to contact other machines from this ubuntu, but I need also to contact this ubuntu from other machines. What do I need to do to enable telnet service reachable via standard p 23?
View 4 Replies View RelatedI have two machines, one used as client and the other as server. I want to check if the port 7080 on server reachable from the client machine.How can I do that? Using telnet?
View 12 Replies View RelatedA question that I've asked myself (and google) many times but never got to an answer.Scenario:ServerA) postfix Primary MXServerB) postfix Backup MXAccording to the rfc a source mailserver can decide where to send email e.g.send an email to backup even is primary is reachable up and running.So my questions are: 1) how do I (live I mean) replicate messages arrived on any server to the other?2) How do I synchronise sent messages, message deletion, folder creation/deletion.Imapsync goes half way towards the solution but it needs to be run manually one off and you must specify source and destination.All I wanted really is a user to be able to use either server without having to worry about primary/secondary or what so ever.
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