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

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Windows 2012 R2 Server network fails intermittently

I have 2 windows 2012 R2 servers in a production environment. Both are VM's and configured same with the ip address as different. I haven't recieved alert of any kind of network failure for one ...
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2answers
749 views

Why do tracert latencies not add up to ping latency?

One might expect the sum of the tracert latencies to equal 267ms:
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105 views

Which Log file to check for strange Ubuntu server behaviour (offline for 5minutes at random times)

I am having problems with my Ubuntu 10.04.4 LTS server. My monitor application claims it goes off every morning at about 4 AM for 5 to 10 minutes. I am not sure where to start the troubleshooting ...
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5k views

OSX nslookup can resolve a lan hostname, but ping cannot? [closed]

I'm having an issue which recurs every few days, whereby ping cannot resolve a hostname on my LAN (but nslookup is able to). This is on OSX 10.9.2 (latest). The machine in this case is called ...
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2answers
588 views

What IP addresses to use for monitor the availability of Internet connection?

I would like to check the availability of Internet connectivity by sending ICMP "echo request" messages to some IPv4 addresses. Those IPv4 addresses should be as reachable as possible in stability ...
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2answers
614 views

Windows XP VMs on ESXis not pinging each other

I'm running a virual environment of this sort. There's a UCS box that has several VMs. I've setup 3 Virtual ESXi VMs and vCenter Server appliance. Using the appliance, I installed 3 WinXP VMs on the ...
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2answers
357 views

Why nslookup doesn't use mdns while ping do?

In dnsmasq.conf: address=/local/127.0.0.1 In resolv.conf: # Generated by NetworkManager domain example.com search example.com nameserver 127.0.0.1 nameserver 10.66.127.17 nameserver 10.68.5.26 I ...
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1answer
102 views

How to find vds/hosting with the best ping that I can have?

I'm living in tajikistan, and I want to purchase vps/dedicated server or at least good hosting outside of my country. One of important thing I want is to have a GOOD ping. For example ping to ...
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1answer
335 views

How to ping ipv6 interface

I'm trying to get familiar with ipv6 I don't understand why I can't ping this interface at the inet6 addr eth1 Link encap:Ethernet HWaddr 08:00:27:77:9e:77 inet addr:192.168.33.10 ...
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1answer
129 views

Bandwidth measurement using ping [closed]

How can I measure bandwidth using ping? I know I could use something like iperf on each end to do the measurement, but I can't do that because I don't have access to the remote system. Maybe if I ...
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111 views

Trace Route, Slow Pings, timeouts on after server restore

I am getting bad ping times on my server, especially for large data requests. The stored procedure on the server runs at 1 second, while calling it through my web applicaiton takes 23+ seconds. This ...
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2answers
185 views

packet loss between two specific VMs

I am experiencing some high-percentage packet loss (more than 70%) between two specific VMs in a local network, in a remote cluster (I have no physical access to it). One machine is used as a hadoop ...
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3answers
565 views

DNS issue? I cannot ping FQDN, yet I can ping alias (CNAME)

I'm experencing weird DNS issue and I was wondering if someone has any ideas: # ping -c1 test.XXX.local ping: unknown host test.XXX.local # ping -c1 test PING test.XXX.local (10.52.223.41) 56(84) ...
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1answer
280 views

Why would I get different ping times directly to 10.0.1.1 versus pinging google.com with TTL 1? [closed]

Using mtr to gather some statistics, if I run sudo mtr 10.0.1.1 to ping my router, it looks terrible: My traceroute [v0.85] Johns-MacBook-Air.local (0.0.0.0) ...
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794 views

How can be ping used to measure a server speed? [closed]

When I ping myserver.com, I get this responses: 64 bytes from XXX.XXX.XXX.XXX: icmp_seq=1 ttl=242 time=52.6 ms 64 bytes from XXX.XXX.XXX.XXX: icmp_seq=2 ttl=242 time=55.9 ms 64 bytes from ...
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2answers
216 views

Android/Linux Ping sends another packet before packet timeout

I have to send 10 packet & timeout for each packet should be 3 secs. As Android pings works on Linux ping commands, I am using below ping command in my application: ping -c 10 -W 3 -s 32 ...
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1answer
64 views

Dedicating a server for latency test

I've created a server to test bandwidth from employees working remote (using speedtest.net mini), but was wondering if anyone knew of a way to setup some software in linux to test latency and possibly ...
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1answer
990 views

Linux network namespaces - ping fails on specific veth

I just started to exploring network namespaces. I try to implement the following simple setting following the article in http://www.opencloudblog.com/?p=42 +--------+ ...
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1answer
505 views

Server not responding to http or ping but ssh works

I can access to a VPS through ssh. That VPS has httpd installed on it and running to listen onto port 80. However I can't ping that VPS nor access to his apache but I can log in with ssh. This is ...
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1answer
1k views

Unable to ping 127.0.0.1 … except as local Administrator

I'm having this issue with two Server 2008 R2 domain member servers built as VMWare guests. The DCs built at the same time do not have this issue. When I try to ping 127.0.0.1 (or "localhost") when ...
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1answer
139 views

2 servers with 2 ip adresses cant ping each other

I rent 2 root servers from my provider that run Ubuntu 12.04.01 LTS. I ordered a second ip for each of them and configure them in /etc/network/interfaces as follows: iface eth0:1 inet static ...
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1answer
408 views

Ping to pppoe server fails, while reverse is working

I have created a Linux PPPoE server on CentOS release 5.4 (Final) x86_64 machine (Linux 2.6.18-164.el5 #1 SMP). I have also established the PPPoE connection successfully. However, ping to server from ...
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1answer
2k views

ping -a sometimes returns host name and sometimes returns FQDN. Why? Does this mean DNS is corrupt somehow?

I have a Windows machine called abcd for example and it uses DHCP to receive an IP address (172.28.45.5 for example) When I perform ping -a 172.28.45.5 sometimes I receive abcd as the hostname. ...
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734 views

Setup machines network in Windows Azure

I'm building a web application and I've decided to host it on Windows Azure. My application has three components: A front-end created with Play Framework (machine A) A back-end core written in Java ...
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74 views

Windows servers on same gigabit lan switch, what might cause Windows 2008 R2 to have 50% longer ping times than Windows 2003 server?

After installing a brand new HP Proliant DL380e Gen8 running SBS 2011 (Windows 2008 R2 X64) I noticed a difference in response to ping requests on the wired ethernet local LAN, even before the ...
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709 views

pinging an unknown hosts from centos resolves

I am seeing very strange behavior with servers running CentOS 6.4 x64. If I run a ping on a host which clearly doesn't exist: ➜ ~ ping sdafsadfdsadfsasdfasdoi.com PING ...
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2answers
301 views

Setting up 2 IPv6 Subnets and ping across Cisco router [closed]

I am trying to setup 2 IPv6 subnets across a Cisco 2621 Router. I am having some trouble... I have assigned: fe0/0 2607:fcb8:10::x:x:x:x fe0/1 2607:fcb8:11::x:x:x:x On the fe0/0 side I have a ...
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1answer
126 views

Maximum MTU size

Thought one of the issues I'm experiencing with the following question is due to MTU rightfully so. ESXi 5 VM Putty session hangs, vSphere client timing out However, when I tried testing the ...
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1answer
554 views

ping incorrectly pinging 127.0.0.1

I've got an odd DNS issue. I'm running a dual ipv4/ipv6 environment on Gentoo Linux. Pinging some sites results in ping pinging 127.0.0.1. e.g. #> ping authserver.mojang.com PING ...
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655 views

I can't ping to my EC2 instance although icmp has been set

I wasn't able to ping to my ec2 server although I've done the following command: ec2-authorize default -P icmp -t -1:-1 -s 0.0.0.0/0 when I try this again it gives me: ...
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42 views

Version of Ping that outputs returned Payload?

Is there a version of Ping that has a command line option that outputs the payload returned? If so, can you please point me to it?
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1answer
333 views

AWS EC2 instance not pingable or available in browser

I've seen this questions asked other places, but now I've run through every fix proposed in other questions so I'm re asking it here, in hopes that someone will have a different solution. Problem: I ...
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824 views

Server 2012 intermittently fails to respond to pings from single host, even with firewall disabled, but responds to non-ICMP requests fine

This one is kind of weird. I've got the following machines involved: DC01 - 10.1.2.42, Server 2012, domain controller & DNS server, physical machine nagiosv - 10.1.2.35, CentOS 6.4, Nagios, ...
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129 views

If a server is performing slowly, will ping still appear normal?

I'm trying to troubleshoot an intermittent slow application problem without direct access to the network. There is a server on one network providing webpages to a VLAN on a different network via a ...
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2answers
836 views

root domain to www forwarding issue

I want to forward my root domain(yourdomain.com) to www.yourdomain.com Should I delete the A record of the root domain and then setup 301 permanent forwarding to www.yourdomain.com? I am hosting my ...
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1answer
680 views

Some clients on a VPN network are not reachable

The problem of this model is that some (only some) clients cannot be reached. See the link below for more information about the model which is being described in the upcoming section. Problem ...
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3answers
214 views

Why 160ms to ping <5miles [closed]

My server is sunnyvale, CA. 2 (64.71.128.221) goes to Cupertino which is close but away from mountain view. The destination is mountain view. It takes 160ms to ping there. I can ping the other side of ...
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185 views

openvpn setup ping/routing fail

My problem is that after setting up VPN on a virtual machine (Ubuntu Linux) with that has an IP I cant ping anyone at all over the tun interface from the client. VPN Connection is however successful. ...
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1answer
774 views

ICMP echo-reply packets with a much lower TTL (-190) than ICMP time-exceeded packets

When I ping the last three hops of a traceroute path to facebook.com from my location, the ICMP echo-reply packets I get back all have a TTL of respectively 58, 57 and 56. The hops in question are the ...
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1answer
289 views

Why does an IPv6 route added before virtual machine is started not work

I have an external server at Hetzner with Debian 7 and trying to setup KVM with IPv6 Routing (the same setup works for IPv4 without problems). I have one Ubuntu Server VM with two interfaces which ...
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181 views

Continuous ping on proxy preventing https requests, why?

I hope someone can help me solve this mystery. I have a small linux box which is configured as a transparent proxy on my network. I'm trying to run a script at startup that does a continuous ping to ...
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1answer
175 views

Ping time jumps from 0.9ms to between 11 and 28ms

I have a server with 5 other devices all plugged into a single switch. I can ping all devices with nice low ping times (between 0.6ms and 0.9ms). But, all of a sudden, the ping time to one of the ...
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1answer
82 views

Router Behavior for MAC Address Change for same IP

+-----------+ +------------+ +---------+ | LAN |eth0 lan0| Router |wan eth0| | | PC |===========| |===========| WAN-PC | | | ...
2
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1answer
302 views

Hosted Network Latency

Background I have a new hosted, dedicated database server behind a dedicated firewall (Cisco ASA 5505 Sec+). The plan is to have a virtual (aka "cloud") web server or two on the other side of the ...
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315 views

Connect Navicat to Linux server

Im trying to connect to my remote Linux CentOS server with Navicat. If I try to connect with the relevant details it just hangs with "connecting to ...." I've tried to ping the server (with the ...
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1answer
176 views

How light is a ping?

Hopefully this question isn't too dumb. I'm wondering how expensive (system resource, and bandwidth wise) a ping is. If I have a small embedded linux device that has very limited ram, cpu, and ...
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1answer
636 views

Cannot ping gateway

I replaced my aging fileserver with a new server running ESXi 5.1 and migrated my fileserver in a virtual machine running on it. Now I have the following problem with this VM: I'm getting the ...
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3answers
5k views

How to Ping explicitly from eth1 instead of eth0

I'm trying to execute a ping with eth1, but the program uses eth0(the default network device). Any tips, tricks, or alternate techniques available?
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1answer
227 views

How to run putty on a particular network adapter

I have a loopback adapter which uses SLIP to communicate to a microcontroller. The issue I have is on Windows I dont know how to run putty on that particular network adapter. Does anyone know how to ...
2
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2answers
714 views

Unexplained 0.1% packets time out when pinging from router

I'm troubleshooting a customer who requires the ability to send 5000 pings from the router to their remote site over a satellite link with zero timeouts, yet they keep experiencing one to five packets ...