Ping is a mechanism to see if a remote host is reachable via an IP network

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Ping sometimes resolves the name, sometimes not

Is this a normal behavior, that ping sometimes displays the server name, sometimes only the IP? OS: Ubuntu 12.10 ~# ping development.example.local PING development.example.local (192.168.0.25) ...
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1answer
454 views

Cannot Ping or Resolve DNS Internally; Externally works fine

I have an issue where I cannot seem to access a subdomain from within the same server: I can ping, nslookup, etc subdomian.domain.com externally, but from within the server where subdomain.domain.com ...
4
votes
1answer
196 views

tcpdump on interface when pinging nonexistent hosts on local network

I've statically configured the IP address of an interface on a server: ip addr add 10.40.0.6/16 broadcast 10.40.255.255 dev eth1 If I try to ping a machine on the network (e.g., 10.40.0.1), it ...
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2answers
432 views

arp packet received larger than packet sent, why?

I'm trying to debug a networking issue. During this process, I've noticed that when I try to do an arping, the received arp packets are larger than sent arp packets, as outputted by tcpdump. (Note ...
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6answers
21k views

Enable Ping in Windows Server Firewall?

I've just installed Windows Server 2008 on a server and I'm able to connect through Remote Desktop but can't ping. Do I need to open an special port on the firewall to be able to ping a server?
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2answers
125 views

ping and identify Cisco model without physical access or login?

There are several Cisco devices on my network which I can find with ping or nmap but I have no idea what the type (e.g. switches, routers) or specific model is. Is there some way to find this out ...
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2answers
183 views

Can ping google.com, but can't ping cnn.com

I have just upgraded from 10.04 to 12.04. I didn't notice the problem at first. But when installing horde with the pear installer it failed to download all of the packages. So I did a little hunting ...
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1answer
487 views

ping -a does not return hostname [closed]

The problem i am currently experiencing is with One of my Untangle boxes. We are using IPsec VPN, Microsoft Server 2003 for DNS. I cannot get RDP to work with hostname, FQDN, ONLY IP. When i use ping ...
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1answer
1k views

Server can't ping or connect to self

This SF Answer helped me after nerve's answer below: No network loopback device after security update ubuntu 12.04 Original Question I've been Google-ing and banging my head against the wall for a ...
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1answer
902 views

VirtualBox bridged adapter can ping but can't curl

There is a delicate server running Ubuntu Server 12.04.2. There are 4 useable IPs for this server: A, B, C, D. The server itself takes A. The server is now running two VirtualBox guests, both with ...
0
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1answer
123 views

Low Latency for Google compared to servers located with in my country [closed]

When i ping google.co.in its showing 11.1 ms as average ping www.google.co.in PING www.google.co.in (173.194.36.63) 56(84) bytes of data. 64 bytes from bom04s02-in-f31.1e100.net ...
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0answers
68 views

I have a very strange symptom in my network

I have a very strange symptom in my network, some times a ping to the remote computer doesn't work in the same subnet (same VLAN), for example: [Local Computer (IP:10.10.10.2/16)] --- ping ---> ...
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votes
7answers
688 views

Scan for connected, powered on computers on a network?

I want to scan for powered on computers on my LAN and gather logs about that. I tried nmap but it didn't work very well (a lot of switched on computers are not getting detected). nmap -sP ...
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0answers
79 views

Can't see all servers through VPN

I set up routing and remote access on a customer's 2003 server. Everything works, I can connect no problem. There are two servers in the domain. One is a 2003 Small Business DomainServer, the other is ...
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votes
1answer
104 views

I can ping www server, but cannot ping domain name [closed]

for example, I can ping www.example.com, but cannot ping example.com. It reports: "Ping request could not find host example.com. please check the name and try again" (in DOS mode) How can I fix ...
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0answers
659 views

Ping returns 100% from VM guest, returns sporadically on host

I have an interesting situation on my network right now. I have a 10.1.1.x space that I have a few dozen static IPs on (servers, etc.) and a 10.1.4.x space where we have other machines (DHCP-fed user ...
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1answer
79 views

Ping measurements during throughput measurements

I have been measuring the throughput of file transfers from remote hosts and analysing the results, I understand about payload to overhead ratios, retransmission and other causational factors of ...
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2answers
107 views

I can't ping my server from certain IP

I have 2 internet connections from 2 different ISPs with static IPs, lets call them A and B. A connects to the server in several ways (ping, SSH, HTTP), while B cannot do anything (ping, SSH, HTTP). ...
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1answer
356 views

Reply times vary with ping test

I am seeing the following and I have already scanned all the computers for viruses and there were some but they have been removed. Would anyone have any other ideas on what tools or other things that ...
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2answers
3k views

How to monitor printer host status with zabbix

I need to monitor host status of printers from zabbix. I managed to monitor the inklevel via SNMP. Any ideas to monitor printer reachable or not ?
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1answer
119 views

I am unable to ping two machines each other despite they are on same domain network

I am having two VM's equipped with 180 trial versions of Windows server 2008 R2 SP1. In one i have configured active directory domain services and ran dcpromo.exe on it and added the other server to ...
0
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1answer
83 views

Ping Elastic IP Address from Inside Server Fails

I have an EC2 server set up inside a VPC on Amazon. The server is reachable from the outside via its elastic ip address; however, when I attempt to ping that ip from inside the remote desktop ...
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1answer
125 views

Pinging two machines (mac and a pc) from a wifi hotspot [closed]

I am in India and I use a device like this(Verizon mifi) to connect to internet(Indian version is called Tata photon WiFi hub), this device can connect upto 5 computers but the problem is that none of ...
7
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9answers
4k views

How To Disable Responses To PING

I feel like this should be a really simple thing to do, but googling and checking SF I didn't see anything. I'm trying to make my Fedora server not respond to ping, how do I do that?
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0answers
169 views

Cannot ping any machine on local network (embedded linux device)

I have an embedded linux installation (custom built using buildroot, uClibc and busybox) and I am unable to ping any machine on my local network. My /etc/network/interfaces file is as follows auto lo ...
0
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1answer
216 views

ping debian vpn server from windows clients

Scenario: I have a functioning openVPN connection on my Debian Server (it's a virtual server, so there are some restrictions what I may access/modify) and Windows 7/8 and OS X Lion/Mountain Lion ...
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2answers
3k views

openvpn: connection established, can't ping server tun interface (debian server, windows & os x clients)

My goal: I want to set up openVPN on a vServer from the company netcup, running Debian squeeze. I only want a VPN connection from client to server; clients should not be able to see each other, also ...
0
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1answer
2k views

Can you ping a Cisco Router's Loopback Interface from a PC using PacketTracer

I may be misunderstanding what you can do with a Router's loopback interface. I am trying to ping it from a PC on the same network. I am using Packet Tracer to simulate this, a Cisco 1841 and a PC ...
2
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4answers
2k views

how to check connectivity to server by windows tools?

I need to check if client can connect to server on specific TCP port. Server is listening on it. Tried "telnet server_IP port" but telnet is stuck when I see that it's connected to the server. Seems ...
1
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1answer
83 views

Unable to connect to device across subnet

I have a network printer (Sharp copier) that I am unable to contact from a different subnet . I am on 192.168.100.x. The printer is on 192.168.200.x. I can ping (or remotely connect to) every other ...
0
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2answers
117 views

Why I can ping “anything” and I get a response, instead of getting “Unknown Host” [closed]

I can ping any word or domain in CentOS 6 and I get response from the same IP, if that pinged domain doesn't exist in real world. e.g. ping xxxxxx How can I fix this? I want to have normal behavior ...
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0answers
50 views

ping -4 and ping -6 both connect, but ping doesn't

On a Windows 2008 R2 server I'm having a strange issue with dns. nslookup, ping -4, ping -6, tracert -4 and tracert -6 all work correctly and will resolve the correct IPs. But ping and tracert ...
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1answer
217 views

Pinging between hosts through Layer2 tunnel fails

I have some serious problems with my newly setup network with a Layer 2 VPN tunnel. I draw a little diagram to show the simple version of the setup: The green lines are through the VPN, the blue ...
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3answers
636 views

Cannot ping from a bridged inteface

I am trying to bridge between eth2 and br0 from ubuntu 11.04 within virtual box. There is network bridging to host physical machine. From the guest OS after bridging I can ping from br0 but ...
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votes
1answer
140 views

How to find out why website is not accessible? [closed]

I cannot access a certain website. There are two possible reasons: The block is on the ISP side. The block is at the website. Is there a technical way to figure out which of these are causing the ...
0
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2answers
353 views

Can ping out but not in

What are some of the causes of not being able to ping a server? I have a windows 2003 box that I can remote into but I cannot ping it. What I have checked is: The server can ping my desktop ...
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3answers
310 views

Ping hostname returns another hostname in output : what does it mean?

When I ping the server sip3.voip-centrex.net, I get this output: PING sip3.voip-centrex.net (194.98.81.144) 56(84) bytes of data. 64 bytes from mpfrrelay.michaelpage.fr (194.98.81.144): icmp_req=1 ...
0
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1answer
2k views

Icinga/Nagios to ping different machine on local network

I have 3 machines, all remote IPs and all of them running nsclient++ with remote and local IP addresses: 46.*.*.1/192.168.1.1 46.*.*.2/192.168.1.2 46.*.*.3/192.168.1.3 I want nagios/icinga to ...
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2answers
2k views

Ping one interface from the other

I have a computer (running Linux) with 2 interfaces eth0 and eth1. eth0 with address 10.0.0.100/24 eth1 with address 192.168.1.100/24 They are connected to 2 different networks (10.0.0.0/24 and ...
0
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1answer
226 views

ubuntu set up as router lan pc can ping one direction and get shares but other direction can not ping or connect shares

I have ubuntu router questions. you can see tracert can complete on way but not other way. How to make that work? (a better visual layout exists here) ...
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1answer
252 views

2 nic cards in ubuntu PC, one to router, one to win7 pc, make connected pc on router talk to win7 on 2nd nic

There are 2 win7 pc, 2 100 mb/s routers and 1 ubuntu 12.04 pc. I scanned a diagram of the Lan setup with IP's ...
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4answers
5k views

What is the difference between ping and tracert?

I basically know the difference in my head but I'm having trouble formulating it on paper. If someone could tell me a little more detailed explanation about the two I'd really appreciate it. So ...
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1answer
186 views

problems pinging a hyper-v VM

On a Windows 2008R2 server, I am hosting another 2008R2 server VM using Hyper-V. The server appears to be running fine. From the host server, I can ping the VM: Pinging SRV-ADTEST ...
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1answer
240 views

Have access to internet but ping 4.2.2.4 results in 100% packet loss [closed]

I am running openSUSE 12.2 on my machine. When I try ping 4.2.2.4 in my konsole I get 100% packet loss, but I have access to internet. How can I fix this? I always thought if ping 4.2.2.4 doesn't ...
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1answer
989 views

Cannot ping Windows 2008 R2 by hostname

I cannot ping the Windows 2008 R2 server by hostname from Windows XP Home machines, but I can ping it from Windows 7 Ultimate machines. I already disabled ipv6. I need to access a shared folder: ...
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2answers
461 views

The ping response time doesn't reflect the real network response time

I encountered a weird problem that the response time returned by ping is almost fixed at 98ms. Either I ping the gateway, or I ping a local host or a internet host. The response time is always ...
4
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2answers
3k views

nmap does not find alive hosts with ping scan

I try to ping scan my local network using nmap, but it doesn't seem to find machines that are for sure alive. It responses to ping but on to ping scan. Results for ping: $ ping 192.168.0.2 PING ...
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1answer
264 views

does ping command to a dns name uses DNS PTR type messages?

Okay I cant understand this, when I try to ping to a machine on my network using the name associated I get a response from that machine, thats normal.. But there are messages that the sender sends to ...
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0answers
197 views

Odd DNS behavior on multiple Ubuntu 12.04 VMs. NSlookup and Dig resolves hostname but ping cannot

In attempting to set up a VoIP server, I came across some interesting behavior from Ubuntu. My VoIP account was assigned a unique hostname that I am to connect to, however, Ubuntu is unable to ...
0
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1answer
277 views

iptables blocking ability to ping/reach domain names

I'm trying to set up some firewall rules for allowing SSH, incoming ping, munin, and MySQL between one server and another (all those services are working fine with my rules), but when I apply the ...