Ubuntu Networking :: Cant Ping Server But Is Still Accessible From Browser?

Jul 22, 2011

It resides at There are numerous domain names on this ip [URL]s Those are a few of them. Now if you try to ping it does not respond, if you ping "www.barrierfree.us" it says pinging but it also does not respond. BUT if you point your browser to one of the above domain names it will work, but it is quite slow.

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Networking :: Can't Ping Past Gateway / Can Ping Server From Outside

Apr 29, 2010

So, I have an Virtual Machine running CentOS 5.4. It sits behind a hardware firewall which also does NAT'ing. I've set up plenty of these, so I know for sure the firewall and NAT rules are set up correctly. From the host, I can ping anything in my subnet and the gateway. But I can't ping anything else beyond the gateway. I can perform DNS queries and when I try to ping, it finds the appropriate IP address.But from the outside, I can ping the PUBLIC address (It's a 1 public to 1 private address NAT, not 1 public to multiple private). I've tried it with IPTABLES on and off, with no change.

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Networking :: Cannot Ping With Command - Ping IP - Address But Can Ping With - Ping IP -I Eth0

Jul 15, 2011

I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.

But if I gave ping -I eth1 <IP> then I can ping.

I cannot install any package, so tell me solution which includes not installing any package.

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Fedora :: Browser-accessible Repositories ?

Jan 11, 2011

How do I find, for example, what version of gfortran is available for Fedora 14 without having to boot Fedora?

From the Fedora Home page or the wiki. I could not find a list of browser-accessible sites for Fedora-14-compatible software. I have in mind something like the Debian repository.

Searching with Google is a problem because of the competing fedora-commons.org repository and the multiplicity of names like RHEL and EPEL that may not be compatible with Fedora and may not be free.

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Ubuntu Networking :: Web Server Only Accessible By Local Network

Nov 3, 2010

I just setup a ubuntu 10.10 box learn linux and to play around with, and want it to host my website. I can see the web site on my local network no problem but the outside world gets a time out message. I check to make sure everything is forwarded correctly on my router and the dns so i has to be something in ubuntu blocking out-of-network traffic how do i turn port 80 on to the outside world

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Ubuntu Networking :: Make Server Accessible With A DHCP Address?

Nov 1, 2010

The cable internet I'm using runs on Dynamic DHCP IP addresses. I changed it to a static IP address in my router settings, but it keeps changing. This means that I can't connect to my home server from a remote location.

Is there anyway to run my ubuntu server on a DHCP IP address without connecting through my router 192.168.1.xxx?

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Networking :: Can't Ping Server From Client But After Run In Server RHEL5

Nov 27, 2010

I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.


then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.

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Networking :: Server Only Responds To Ping Is DMZ Is Enabled For Server?

Apr 12, 2010

I have multiple public ip addresses.My DSL modem blocks ping from a server behind the modem (nb6+4w) modem lan ip (gateway) is xxx.xxx.xxx.105the server is xxx.xxx.xxx.107If I DMZ this server it responds to pings.If i don't want to use DMZ, what service is ping using.I have set up virtual server 443 to this 107 ip as it's a SSL server

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Ubuntu Networking :: Iptables, Allow Ping To The Server

Mar 17, 2010

I have a VPS running Karmic (9.10).

I can ssh it and it serves :80 (http traffic) very well.

I have followed the tutorial from here:[URL]

I would like to ask what should I do in order to get ping to that machine working? (now I can't ping it, I get timeouts)

misha@tataata:~$ sudo iptables -L
[sudo] password for misha:
Chain INPUT (policy ACCEPT)
target prot opt source destination


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Ubuntu Networking :: Server Can't Ping The Router

Jan 2, 2011

I'm setting up a home network and trying to set up a Ubuntu Server (10.04) as a samba file server and a web server.I installed Ubuntu 10.04 Server and the automatic network configuration during installation failed. I've looked into host.conf, networks, interfaces, hosts and resolv.conf and either my settings are wrong or it's something else. I have a Win7 computer connected to same router and DSL modem and it works fine (edit: most of the time--- see below).

More information:

*ifconfig shows eth0 is broadcasting but without an IP address
*route shows an empty routing table


sudo route add default gw doesn't work:
SIOCADDRT: No such process
sudo /etc/init.d/networking restart doesn't work:


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Ubuntu Networking :: Can't Ping Local DNS Server

May 28, 2011

Last night I setup bind9 on my server. I created a local domain (name.local). The server's ip address is

The issue that I'm having is that with my ubuntu laptop, I can't ping the name of the server.

user@prefect:~$ ping name.local
ping: unknown host name.local
But when I do the same ping from both the server and a XP computer, it will respond.

I can ping the laptop with it's name (prefect.name.local) from both the server and the xp computer.

This is my /etc/resolv.conf file:

user@prefect:~$ cat /etc/resolv.conf
domain name.local
search name.local

Also, when I do nslookup name.local or dig name.local, the return with no errors.

Why is it that I can't use the name of the server to access it and that only the ip address works?

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Ubuntu Networking :: Unable To Ping Over Wireless But Can Ping Over Wired?

Jul 24, 2010

I have two machines on this network, one running Ubuntu and the other running Fedora.

When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.

If I switch over to the Wired Network then I can ping the other machine.

I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.

I tried asking on IRC and they ran out of ideas too to find out where the problem is.

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Networking :: Cannot Ping Gateway Server Within Windows Networking Environment

Jul 11, 2011

I am trying to get a Linux (Slackware 13.37) working in a Windows networking environment. The IT support for this organisation does not extend to Linux support, so I'm limited in what help I can get for this.

I'm trying to get to the point where I can get to the internet to download what I need on this Linux machine.

The situation is this (*fictitious addresses used) -My Linux machine uses a fixed IP address (
My Windows machine uses a DHCP assigned IP address ( Linux and Windows machine are configured to access the gateway server (, I can ping the Linux machine from the Windows machine and vice-versa.I can ping the gateway machine from the Windows machine.I can browse Windows Shares on the network via SMB from the Linux machine.I CANNOT ping the gateway machine from the Linux machine with the Destination Host Unreachable message being the error message.

For actual internet access I need to access a proxy server but since the Linux machine can't even ping the gateway server, it fails to ping the proxy.Now, I have been told the gateway is a HW based router and for Windows machine they use some software for authentication to connect to the network. This software isn't available for Linux, so that's why I've been told to use a fixed IP address.My experience of networking is pretty basic and most of the Linux setup is done via running Slackware's setup program.

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OpenSUSE Network :: Ping Works But DNS Not Working In Browser / Sort It?

May 30, 2011

Originally after an installation of openSUSE 11.4, I had no internet connection at all, even when connecting with ethernet cable. But then I tried switching back to YaST and then back to Network Manager, and restarted a couple times, and now I have internet connection. DNS is also working, for Ping. The problem is that firefox does not use DNS and cannot resolve host names. I can use Firefox with IP numbers.

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Networking :: Cannot Ping Windows From 5.4 Server

Dec 20, 2010

I have connected my Windows XP2002 laptop with Linux 5.4 server through a direct LAN cable. I have made following configurations:


eth0:0 IP:
eth0:1 IP:
route add -host gw

I can ping the Linux server from my Windows, but cannot do so from Linux to Windows.

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Networking :: Can't Ping Anything Behind The Server End Of The Tunnel?

Apr 5, 2010

I am building up a site-to-site OpenVPN tunnel between two locations. I am setting this up in two CentOS 5.4 boxes each containing two NIC's. I can get the tunnel up and running, and I can ping across the tunnel, however, from the client end of the tunnel I can not ping anything behind the server end of the tunnel. In other words, I can't ping anything on the server's LAN. On both servers, eth0 is the WAN side and eth1 is the LAN side.

OpenVPN server:
eth1 -
OpenVPN client-server:
eth1 -
I have IP forwarding enabled in the kernel on both machines.
[root@vpn01 openvpn]# cat /proc/sys/net/ipv4/ip_forward


I'm sure that the answer is right in front of me, but I can't seem to get it cleared up. I can't hit anything on the,, or networks from the client server.

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CentOS 5 Networking :: Cannot Ping Server From Outside?

May 20, 2009

I have configured (bind) my server with multiple static IP. I can ping the main IP from outside but not the other IP . I can ping all the IP from localhost but not from the internet. I do not have any external firewall or blocking device. server is directly connected via modem. If anyone could advice me for why i cannot ping other Ip's

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Networking :: SSH To Server But Cannot Ping The Server - OpenSUSE 10.1?

Aug 10, 2010

I have a OpenSUSE 10.1 system on my college network and I am able to ssh to other college servers, but I cannot ping these servers. More importantly than pinging when I try install one particular program it needs to be able to access one of the college servers (which has the license for it) but it is not able to contact the server.I have installed this program on other computers (windows and redhat linux) on the college network and they can connect to the server (and they can also ping the server).But Idon't know how to fix this problem.I have googled lots of things but I am a bit bamboozled.I have turned off the firewall but it doesn't make a difference.

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Networking :: Debian 5 - After SysCp Installation And Configure Ping Valure - Ping - Unknown Host

Jul 9, 2010

Ive got a problem on my server ....installed Debian 5 , Webmin and than syscp settung up syscp ready ....

I try to ping "localhost" ansver ping: unknown host
I try to ping "localhost." there is a host with IP

I need it to change it in "localhost"

Is that the bind9 maybe?

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Ubuntu Networking :: Server: Dhcp - No Static - Cannot Ping Router ?

Dec 9, 2010

Fresh install of 10.04.1 server; installs seamlessly; finds network no problem.

However, establishing static connection is driving me batty. Will not take. I've reconfigured "interfaces" file several times. My fingers are numb ifdown-ing and ifup-ing and /etc/init.d/network restart-ing.

I have two files in /etc/network ... interfaces and interfaces~ (one static and the other dhcp). I can switch them in and out of play. The dhcp works and pings out like a champ. static is dead, just dead. Cannot ping router ... nothing.

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CentOS 5 Networking :: Can't Ping DHCP Server Even Was Able To Get An IP From It

May 7, 2010

I have installed Centos 5 on a virtual machine (esx4i). I set it to obtain an IP address from the DHCP sever, which is a broadband router, it has been given an IP address of the router is but I can't ping the router and I can't get any access to the network! I have a SCO Openserver server on the same physical box and it works fine so I know the network card & cable is ok.

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Networking :: BIND9 SLOW Ping When Ping By Hostname

Feb 1, 2011

I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.

I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.

I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.

Configs below:

Ping by hostname - there is a 5-6 second delay between each one of the responses:


Ping by IP - the responses come VERY quickly one after the other:







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Networking :: Ping Connection To Router OK But No Ping Between Boxes In LAN

May 26, 2010

I have Mandriva One 2009.0 ( on one box and Mandriva Free 2010.0 ( on the other. I can ping router ( from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.

Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.

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Networking :: IPTables - Cannot Ping Or Access Internal Server

Mar 31, 2010

Basically, I have a windows 2003 server virtual machine (vmware) inside Ubuntu 9.10.

The Ubuntu machine has IFconfig:
Code: sam@sam-laptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:c5:b8:c8:8b
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Why can't I ping or simply access the internal server on my ubuntu machine from a another computer on the (slash)25 physical network? Do I need a bridge? Iptables?

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Networking :: CentOS-5 Server Cannot Ping Default Gateway

Jul 2, 2010

I posted it on another forum, but could not get response,So I have this cenOS, Ubuntu and windows operating system running on virtual machines.Now I gave them manual ip address, both ubuntu and windows machines can ping the default gateway, but not the CentOS.It should forward to my cisco router address(,

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Networking :: Dell Server With Fedora 12 - Can Browse But Cannot Ping

Jul 18, 2011

I have a small Dell PowerEdge 1650 server with Fedora 12 loaded. We can access the internet, (Google, our home page, Etc.) but can not ping any local or outside IP addressed. Our internal computers can ping each other but not the server. No, it is not the server firewall because we also disabled it and still the same results.

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Networking :: Server Can't Ping Other Boxes On Private Network

Jul 27, 2011

I run a server that is connected to several other boxes in a private network ( I have had no problems previously, but upon a reinstall of Debian squeeze I have no connectivity to the private network: a ping of other addresses on that network fail. Ping and connection to outside world is fine. This box is configured similarly to another on this private network which connects successfully. I have quadruple-checked all my basic information. I post my ifconfig below of the malfunctioning device, then the ifconfig for equivalent nic on a box connected succesfully to the private network.


1.Could it be a cable problem? (I don't see how since the cables have not been changed I do not believe since my reinstallation).

2. What about the difference in the last lines of eth1 below and eth2 of the successful box. Is it significant that the bad eth1 reads Memory:fc3a0000-fc3c0000

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Networking :: Ubuntu Server Cant Ping Or Connect External / Can Resolve Hostname And Domain

Oct 15, 2009

As the title suggest, I have downlaoded the latest copy of Ubuntu Server from the ubuntu website.Everything installed fine. DHCP configured ok as far as I can tell. I can ping other machines on my network (which are running Windows) and they can ping the Ubuntu machine and conenct to Apache which is running on it.If I try to ping google.com or any other domain, it gives the correct IP address but gives no response to any pings, dont telnet on port 80 (or any toher potr for that matter) on any machine on the internet. I checked the settings using ifconfig to see what DHCP had assigned, and they matched the windows machines configuration (other than the IP address obvisouly). I tried assigning a static IP, even reserving a particular IP for my NIC.

Whatever I do, i cant connect to any machine outside the network via IP or domain.I have searched everywhere and tried everything i can find on the net but still to no avail.The Windows machines are part of a domain called alcom-uk.local and run off of a Windows Small Business 2003 Server. Not sure if i need to manually setup Ubuntu to connect using a domain or anything.

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Networking :: New ISP / Modem... Unable To Connect To Ssh Server (or Ping) Remotely?

Jun 4, 2010

Tried turning firewall off, i tried port forwarding tcp port 22, but it still doesn't work. Also am unable to ping modem over WAN, i can ping the modem locally though. Tech support claims pinging and ssh is not part of the internet so they wont support it in any way.

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CentOS 5 Networking :: Can Ping Server Network But Cannot Share Resources

Feb 15, 2010

I have OpenVPN running successfully on a CentOS Linux server. All remote clients connect without a problem and can ping the server LAN ( . The server address is All network shares on the server are available to the remote clients via SAMBA shares and this works well.The problem is that I am unable to get the remote clients to access services on the LAN clients. For example, there is a webserver running on a Windows XP PC (on the server LAN @ with no firewall enabled. The remote VPN clients can ping this webserver at, but cannot browse the webserver at [URL]. All clients on the server LAN can however browse the webserver. The remote clients are using Windows XP and VISTA with OpenVPN 2.1.1.

I am new to VPNs and networking, but from my research, it seems as if this may be a routing issue. I would appreciate any help you may give in getting the remote clients to access the services on the LAN clients (other than the server @

The server configuration is:

port 1194
proto tcp


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