CentOS 5 Networking :: Unable To Ping - No Reply From Certain Address While Others Work Ok

Jun 25, 2009

I run an centos server. From the console I can ping google.com and get a reply. But when I ping another address say xyz.com, the IP address is resolved ( but there is no reply. In the same network in our office from my desktop I ping [URL] and there is a reply.I turned of the firewall but still the same problem.

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Ubuntu Servers :: DNS - Ping A LAN Device By Name - Get Reply With Only The IP Address

May 2, 2010

I have configured DNS on ubuntu server 8.10 and it is working fine. There is one question I have though. Everytime I ping a LAN device by name I get the reply from the server with only the IP Address.

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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 Networking :: Ping's Reply Even When Domain Is Invalid?

Jul 31, 2009

I was using my ISP's DNS server. When I would ping something that doesn't exist, e.g. blahtest.com, it would reply anyway. When I tried to go to the site in a browser, it was some page like "I hope we can help you find what you're looking for". I thought that was ridiculous, so I changed to OpenDNS's DNS server.

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Ubuntu Networking :: DNS - Ping Command For Receiving Reply

Apr 8, 2010

If I type
$ ping [URL]
or even

$ ping google.com
should I receive a reply?

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Server :: DNS In Centos - Enter Ip Or Address Nslookup Does Not Reply Any Answer

May 5, 2010

When i enter ip or address nslookup does not reply any answer. It shows no server found. "servfail". This is my named.conf file:


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Ubuntu Networking :: Install NIC Wired RC-400 - Error Comes Out - Unable To Access The Internet Or Ping Any IP Address?

May 5, 2010

we are trying to install this NIC Rosewill RC-400 Chipset RTL8169S-32 in Ubuntu 9.04 we downloaded the drivers from Rosewill website (For kernel 2.4.x and 2.6.x V 3.1) but when we follow the instruction in the readme file and do make clean modules and error comes out

make -C src/ clean
make[1]: Entering directory `/home/trinity/Desktop/r8169-6.006.00/src'
rm -rf *.o *.ko *~ core* .dep* .*.d .*.cmd *.mod.c *.a *.s .*.flags .tmp_versions Module.symvers Modules.symvers rset[code]...

So I went do realteak downloaded latest available drivers that seems to be were release yesterday did same command and same error So I made only make and it went fine did then make clean modules and went fine so made make install, depmod -a and modprobe r8169 verify int was up and getting correct ip from router but I'm not able to access the internet or ping any IP address

xxx@xxx-desktop:~$ uname -a
Linux xxx-desktop 2.6.28-18-generic #60-Ubuntu SMP Fri Mar 12 04:40:52 UTC 2010 i686 GNU/Linux

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Networking :: Unable To Ping Between Centos And Windows XP

Dec 16, 2010

In my office i have a network of and a squid proxy server running, all other systems have windows XP and one system has centos. On centos system i have three lan cards and i want to test some things on it. So i assigned another IP on it of range and same range on another windows system. And all the systems connected through a same network switch.

Unable to ping between Centos and Windows system. If i ping from one centos to windows system with the series of then it replies very well but same thing is not happening in other IP series.

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Ubuntu :: 9.04 - Do Not Get Ping Reply

Mar 18, 2010

I have install ubuntu 9.04 on my machine. When I am trying to ping google.com, I do not get ping reply but I am able to browse Internet. Also, I am able to ping any of the local machine on LAN.

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CentOS 5 Networking :: Secondary IP Address Won't Work On Eth0

Jul 1, 2011

Everything worked fine until very recently, and without apparently ANY change to the settings on the server, a secondary IP that was assigned to my server won't work anymore..Any IP attached to the same server works fine.. So in my case, the problematic IP is The other IP ( works without any problem.How would I go about troubleshooting this?

eth0 Link encap:Ethernet HWaddr 00:26:B9:44:11:3A
inet addr: Bcast: Mask:
inet6 addr: fe80::226:b9ff:fe44:113a/64 Scope:Link


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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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CentOS 5 Server :: Cannot Ping Webmail Address Inside Proxy

Dec 23, 2010

I am using CentOS 5.5, I installed squid3 in that machine. From my users machine i am not able to use our webmail address. Outlook shows pop3 error.cannot ping webmail address inside proxy.

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Networking :: Accessing (ping - Ssh) Via MAC Address Only

May 29, 2010

I am not able to move original thread so I am linking to it: [URL]

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Networking :: Can't Ping Outside On Specific IP Address

Oct 14, 2010

Something strange with my firewall i used firestarter I dont know why i cannot ping outside on a specific IP address here is my setup. I have IP from ISP - eth0 - eth1

with DHCP features from - 254. my problem is i cannot ping this specific IP address which is if you can try there and pinging is ok but here cannot because that IP address ( they used that to connect to our openvpn which is the IP is <---- this system linux(centos) or IP has no firewall enabled. meaning i separeted this connection. which my setup is like this for OPenVPN


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General :: Ping - Gives Unknown Host Error - Ping To LAN Address Works Fine

May 13, 2011

Even ping google's ip address doesn't work. unknown host error using backtrack4 able to browse net with these settings.

My network settings:

What's the problem with these settings...

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Ubuntu Networking :: Ping Gets Wrong IP Address?

Mar 14, 2010

my network expertise is tenuous at best. This started because one computer on my network is having trouble updating Google Toolbar information. This is a laptop which joins other wifi networks outside of the house.

BROKEN:~$ ping toolbar.google.com
PING toolbar.google.com ( 56(84) bytes of data.


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Ubuntu Networking :: Can Connect But Cannot Even Ping Address

Jul 29, 2011

I have installed openvpn on an ubuntu 10.04 server. I run 11.04 on my desktop. It can connect to my VPN server. The problem is, I have ZERO internet access. I cannot even ping an IP address.

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Networking :: 2 Ip Address In The Same Nterface, The Second One Only Respond Ping?

Apr 7, 2010

I have a server with centos 5 and plesk 9 and I have buy an additional IP address for my server, when i create it in plesk, there is no problem, all its ok I can assign it to a new domain, but the ip only responds ping, none of other services as http, ssh or smtp.I paste here the configuration of files



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Ubuntu Networking :: Able To Ping IP Address But Not Domain Names?

Jun 15, 2010

Since two days i m not able to browse websites using the domain names but able to ping/browse using IP addressed. I have done the following:

1. Using wireless i m able to get IP address of DNS (8.8.8., Gateway, localhost & router ip address
2. Disabled wireless and connected ETH0 but still the same problem
3. not able to edit resolv.conf

sudo gedit resolv.conf
** (gedit:4179): WARNING **: Hit unhandled case 0 (Error opening file: Input/output error) in parse_error.


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Ubuntu Networking :: Ping To Offline Host Returns Arbitrary Ip Address?

Mar 17, 2011

A brief description of my network:It is a small home network consisting of an Ubuntu 10.04LTS server edition, an Iomega ix2 NAS, a WinXP pro server and several family laptops.This is all routed through a Netgear WNDR3300 home router. All are assigned IP's via DHCP and all but the laptops are static (via DHCP though). The WAN address/DNS is assigned via DHCP from my ISP.The problem:When one of the machines is offline, Ubuntu does not resolve the netbios name correctly. No surprise here. But what is happening is that it is finding some arbitrary machine on another network. Below is what a ping to an offline host reveals:

ping -c3 hostname
PING hostname ( 56(84) bytes of data.


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Networking :: Getting An Ip Address From The DHCP Router, But Cannout Ping Any Other Ips Or Connect To The Internet?

Jan 31, 2010

I've only been using linux for a few days so I don't know all the tricks. I'm pretty savy configuring windows networks however.My adapter is (according to windows) a: CNet PRO200WL PCI fast ethernet adapterLinux says it is a: 21x4x DEC-tulip compatible 10/100 EthernetI do seem to be getting an ip address from the DHCP router, but I cannout ping any other ips or connect to the internet.I've tried a bunch of different options, switching things back and forth, but it still doesn't work, and honestly i don't even know what some of the options mean.

ALSO, if this helps:
paladin:~ # ifconfig eth0
Eth0 Link encap:Ethernet HWaddr 00:08:A1:03:3C:99


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Networking :: DNS Lookup Doesn't Work, Ping, Firefox Will Not Work Properly?

Apr 23, 2009

I have this annoying problem since day one.I am testing out Red Hat RHEL5, everything is fine except DNS look up.If I ping www.google.com, it doesn't work, ping ip address it all works;if I bring up browser, put www.google.com it doesn't work, can't find the name, however, simply put ip address there it works.My DNS seeting seems ok, and the DNS works from Windows box.

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Networking :: Unable To Ping Win XP Box From RH9 Box?

Oct 15, 2010

I have installed redhat 9 on my pc i want to configure samba i connect these two pc with cross cable i given both c class ip add when i going to ping from linux pc getting ping but xp getting ping

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Ubuntu Networking :: Can't Get `ping' To Work?

Mar 15, 2010

I can't seem to get ping to work on my home computer. I actually have two separate installations of Ubuntu 9.10. One is at home, sharing space with Windows Vista (dual-boot) on a Dell Inspiron 1525. The other is at workusing Sun VirtualBox on a Windows XP host. ping works quite well at work, through VirtualBox. For example, Code:ping linuxcommand.org always gets 0% packet loss. However, when I do the same thing at home, I always get 100% packet loss.

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Networking :: Unable To Ping To Internet?

Mar 24, 2010

My Internet Router is on

I have 2 NICs in my Linux Box: (Firewall OFF)

Eth0 -> and cross-cable connected to Internet Router (
Eth1 -> Connected to switch hub

Default gateway of Eth0 is to Internet Router (

From Linux-Box.. I able to ping to internet(ie. ping

Client PC: (Firewall OFF)
Default Gateway is

I am unable to ping to internet (ie. ping

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Networking :: Ping Works But Telnet Does Not Work?

May 20, 2011

When I ping a destination IP address, it responds. However, when I try to telnet or ftp or sftp to the same IP address, it does not connect.

I do not know the physical location of the machine.

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Fedora Networking :: Unable To Ping Router

Jun 9, 2010

i have Fedora 13 dual booting with Win XP and i cannot ping my router in Fedora. just reinstalled and i'm still unable to ping my router.everything looks like it was installed correctly except in the ifcfg-eth0 it has IPV4_FAILURE_FATAL=yes dont think this should have a value of yes.

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Ubuntu Networking :: Unable To Ping To Windows?

Jan 8, 2010

I have am having some network troubles. I can't access my samba share. Trying to resolve this I realized I couldn't ping from ubuntu to windows. (default ubuntu.jaunty.server.x64)

Windows IP..
Ubuntu IP...
Laptop IP...
Router IP...


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Ubuntu Networking :: Unable To Ping On Network

Jan 11, 2011

I have ubuntu 10.4 running on both my desktop and laptop. Both machines are connected to the router in wireless mode with Wifi.I can access internet from both machines without any issues, however I cant ping one machine from another. (and vice versa)

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Networking :: Unable To Ping Virtual Ethernet

Mar 24, 2010

My Eth0 has 3 virtual Ethernet (eth0:1, eth0:2, eth0:3)

Eth0 ->
Eth0:1 ->
Eth0:2 ->
Eth0:3 ->

I am unable to ping them ( - from Client's PC.

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