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

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ping timeouts with light http traffic on T1 connection

I have a T1 over copper connection and started to notice that if I run ping while loading an http page (http://google.com) I get intermittent timeouts in ping. Is this normal? I expected some ...
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38 views

[solved]I can't ping the gateway in debian [on hold]

Someone Please help. My system is Debian wheezy. the computer also contains Win8.1 and its network is fine. $ping 10.214.52.1 PING 10.214.52.1 (10.214.52.1) 56(84) bytes of data. From 10.214.52.112 ...
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2answers
26 views

Cannot ping / ssh server after installing VirtualBox on CentOs 6.6 [on hold]

Our server was running fine this morning. I installed VirtualBox and rebooted the server. Since rebooting the server I do not recieve a response when pinging the IP address and I cannot connect ...
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1answer
32 views

Linux: nslookup and dig resolve $HOSTNAME, but ping doesn't

In our private network we have a Consul service discovery server (10.241.232.14) that provides a DNS interface (port 8600). We would like to set our common DNS servers to forward some queries to the ...
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18 views

Gateway to internet on CentOS 6

I have 2 CentOS 6 linux servers say hostnames cent001 and cent002 cent001 has 2 Nic's 1 Bridged and 1 Nat cent001 is able to ping google server 8.8.8.8 with the help of bridged NIC cent002 has only ...
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410 error when using website validator

I am trying to ping my website http://www.saranshsingh.com/ and it fails PING http://www.saranshsingh.com/ (198.105.254.228): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq ...
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18 views

mac osx ping6 only with sudo?

today I encountered a weird problem on Mac OSX 10.8.5 and IPv6: I tried to ping6 a host that is known to be up and running (I am connected to the host in question through ssh using the same remote ...
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1answer
41 views

Can't access (ping, tracert..) from cmd but works from putty

I am not able to ping or tracert to a remote machine from windows command line, but I am able to ping/tracert and access same machine when using putty on same windows machine. What can I do to access ...
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61 views

Server doesn't answer to ping just for me [closed]

I can't reach my server by any means on my own IP. But, if I try to connect to the server through a proxy, it's going well. My hosting company says the server is up too. The server is a debian + ISP ...
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63 views

IP ping internally but not externally

Yesterday, my DEBIAN server went down and I have to reboot. After that, several web sites did not go up and I found that 2 IP above 3 do not ping. The main IP still works and attached web sites work. ...
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49 views

PING icmp open socket: Operation not permitted in vserver

I am running a vserver environment with several virtual machines. A single VM has the following problem: $ ping 8.8.8.8 ping: icmp open socket: Operation not permitted $ ls -l $(which ping) ...
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Ping RTTs vs UDP Ping Pong RTTs

Network Topology (wired): ServerA - 1Gb - Switch - 10Gb - Firewall - 10Gb - ServerB Pinging ServerB from ServerA shows round trip times (RTTs) of ~1.2 milliseconds. UDP packet 'ping pong' between ...
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2answers
122 views

Can ping by IP address but not by hostname [closed]

I have 3 Debian VM. 1)DNS 2)DHCP 3)Client DHCP looks ok. I got my fixed-address on DNS and Client like I want. When I try to ping each of them @ip it's responding. If I try to : ping dhcp But I ...
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2answers
2k views

Pinging an IP address responds with different IP

When I try to ping the IP address 10.10.208.57 I have no response since nothing exist in the network with that IP address. However if I try to ping 10.10.208.057 instead another IP address responds: ...
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15 views

Any tools that can detect if the machine is off similar to Softperfect Wi-Fi Guard?

We have an outage of electricity the other day and some machines (static IP) has been turned off. Because the machines are located in different places is very hard to know. It will be good to have a ...
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76 views

Can't ping ubuntu server after reboot. Where to look for possible problems?

After restarting my Ubuntu Server I can't ping it. My hosting (Herzner) allows to boot server with rescue system, so I can access file system and try to fix it. The questions is, where to look for ...
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1answer
94 views

Why is ping not returning local DNS cache result? (Using DNS caching server on an internal network.)

Yet another post about this nslookup works but ping does not. I’ve read a handful of forum posts but could not find anything relevant to my setup and problem, of resolving external domain names on an ...
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3answers
38 views

Ping not answered to hyper-v vw machine and not remote desktop

I got three vhdx files. One for SQL-server, one for AD and the other one is SharePoint. Inside Hypver-v manager, I created three Virutal Machines for those three vhdx files and chose same Internal ...
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1answer
42 views

pingdom sacking my site's resources [closed]

It appears that somebody created a pingdom account to ping my site once a minute, and since my website isn't hosted on a very strong server anyway, those requests get heavy and slow down the server, ...
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0answers
95 views

Does a ping to 127.0.0.1 hit the network card? Which RFC / standard states that? [closed]

I recently did an exam where one of the questions stated that you can run ping 127.0.0.1 on a computer to verify if its network card is working. I have already read on multiple sources that this ...
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1answer
31 views

How can the Windows 7 sees the Windows 2012? [closed]

I have installed a Windows 2012 Standard Server with Active Directory, DHCP and DNS server in Oracle Virtual Box. It has two Network Adapters (Ethernet and Ethernet 2). These Adapters are in same ...
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2answers
71 views

Transatlantic Ping respond times [closed]

Not sure if this the the right place to ask the question. But has anyone had any experience with ping response times or knows of an good to average response time for transatlantic traffic? we have an ...
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88 views

Can ping from PC to cisco router's ipv6 address (from LAN side) but can't ping from one pc to other's ipv6 address

PCs are connected to Cisco switch and up link goes to Cisco 1841 router on router LAN side interface f0/0 ip add: 2001:xx:xx:xx:1000::64/120. IPv6 is not enabled. I am not able to give prefix length ...
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2answers
576 views

Faster way to ping URL than curl [closed]

What would be the fastest way to check whether the specified URL is working? (responding in OK http status code)? For now I'm using curl, but I have bunch of URLs to test in a loop, so I'm looking ...
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1answer
18 views

Finding device network disconnection location (which hop failed) [closed]

If you can't connect to the internet and you know the problem is as simple as one of your devices being disconnected along the line which of the following would you use to find out which? You also ...
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3answers
90 views

Web server is working, but ping returns a request timeout for icmp_seq [closed]

these are my current iptables settings: Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere state ...
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40 views

Find any/first alive host in subnet

I'm trying to find a quick way to check if there are ANY alive hosts in an IP range by pinging them. eg: i don't need to know what hosts are alive, just if one or more is responding to a ping. This ...
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45 views

Difference between ping time and time for first ACK answer

While creating a packet performance monitor I come across the follow problem: if I ping a server, I get about 4ms. If I calculate the time between a POST and its first ACK, I get about 25us ...
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1answer
126 views

ping -a not resolving hostname for one host on Windows 7 client

ping -a 192.168.99.3 does not resolve hostname for vcl.nailit.lab, but does for other hosts on network like pfsense.nailit.lab. nslookup vcl.nailit.lab and ping vcl.nailit.lab work correctly. See ...
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17 views

Automatically start machine if another fails

Is it possible to get a backup server (machine) to automatically start if the main server (machine) fails (i.e. does not longer respond to ping, or something). We're talking physical servers, not ...
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96 views

Getting chunks of high ms when pinging local / external IP addresses?

I am having difficulty identifying what a specific problem with one of your vlaned networks. They have a voip phone which regularly cuts out during long phone calls. I have done several ping tests ...
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73 views

Can't ping hostname, but 'ping -a' resolves

I'm trying to ping a Windows PC through VPN by hostname. WINS is set up on all devices. I only get a reply from some PCs. On devices that can't be ping'd, I can do ping -a to resolve the hostname. For ...
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1answer
118 views

VPS can ping host by IP but not by name

My Debian VPS can ping all host by name and IP but there's one host I can't ping by name. Ping by name failed but successful with IP However on my home PC i can ping that host by name and IP. I ...
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1answer
80 views

Is it possible to offer failover even using DNS round robin? [closed]

A company X has five ips to a given service. $ host www.example.com.br www.example.com.br has address 13.194.4.159 www.example.com.br has address 13.194.4.152 www.example.com.br has address ...
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2answers
219 views

Fastest way to scan all hosts that are online

I am looking to find all the hosts that are online in a set of networks. I would like to find all hosts that are online in the entire network of 170.10.. (there are ~64K possible hosts). The network ...
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1k views

Can browse, but can't ping

I am behind a corporate network. I am unable to use git, since it can't resolve server names fatal: Unable to look up someserver.org (port 9418) (No such host is known. ) I can't ping that server ...
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92 views

Destination host is unreachable

Points to Note I am installing cloudera 4.6.0 using docker in pseudo distributed mode. I have created two docker containers. One is for hadoop and another is for flume. I linked two containers as ...
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1answer
69 views

First Reply on Ping is Unreachable the rest is okay [closed]

please check this weird ping i'm having What may have caused this problem
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2answers
102 views

Why Ping starts showing results only after a minute

I am running a Solaris 11 system over a local private network 192.168.100.0/24 and I run ping -s to get continuous ping. From the Gateway to my server I get root@mygateway:~# ping -s 192.168.100.42 ...
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2answers
171 views

extreme ping latency in WDS network

I have setup a wireless network at work office with the following config: 192.168.1.1: TP-Link 941 Router, Root AP, connected to internet 192.168.1.2: TP-Link 901 AP, WDS Repeater, connected to ...
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1answer
557 views

Cannot ping to localhost into CentOS

I'm connecting to my server (Centos 7) with ssh and I try to ping to localhost: ping 127.0.0.1 but doesn't work: ping 127.0.0.1 PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data. ^C --- 127.0.0.1 ping ...
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53 views

Bad ping results while testing 6000 TCP clients with 18 mbytes/s total traffic on Windows Web Server 2008

The clients are running on the machine #1. The server is installed on the machine #2. The machines have a gigabit connection through a switch on their private vlan. There are no errors in the switch ...
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2answers
146 views

TTL in ping vs dig

When I ran ping google.com, I get a ttl value of 55: 64 bytes from 173.194.127.103: icmp_seq=68 ttl=55 time=16.4 ms When I ran dig google.com @ns1.google.com., it get a TTL value of 300. ...
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What does ipg/ewma mean in an output of ping -f?

I pinged in a flood mode: # ping -c 1000000 -f 127.0.0.1 and I got the following output: PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data. --- 127.0.0.1 ping statistics --- 1000000 packets ...
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2answers
124 views

how to force linux to accept packet with loopback ip

i have an embedded system with an Ethernet interface that needs to accept external packets with IP of 127.x.x.xx. is there a way to force Linux to accept external packets with this loop back address ...
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1answer
239 views

DNS and PING failure - Windows 2003 DNS and SonicWall NSA240

I am hoping someone can shed some light on this one... I have two Windows 2003 DC's - both running DNS, there are several Windows 2008 R2 and one Windows 2012 Standard server running as member ...
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2answers
142 views

Domain not resolving from some locations

I need help collecting some sort of proof of what might be wrong here Problem description location 1 Ping <domain.net> Ping request could not find host <domain.net>. Please check the ...
4
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1answer
2k views

HP Procurve 2920 VLANs with DHCP cannot ping

I have problem setting up working VLANs and DHCP server on HP Procurve 2920. My problem is that I cannot even ping computers between VLANs with static ip addresees. winXP pc on VLAN101 with ...
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1answer
1k views

Server 2012 Can't Ping Local Network

I have four Windows Server 2012 servers hosted on ESXi 5.5. The first one is the firewall box with two network adapters. One with an external connection to the internet, that is shares its connection ...
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1answer
279 views

Linux ping network namespace

I added namespace to my host-machine and made it available by using this: ip netns add h1 ip link add veth01 type veth peer name veth1 ip link set dev veth1 netns h1 ifconfig veth01 10.0.0.1/24 up ip ...