A utility available on all operating systems that helps test network connectivity.

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How to start `mtr` in the d mode? (or: how to send a keypress to a console app)

I love mtr for measuring my internet connections. Unfortunately the mode that I use it in can only be reached by pressing d as far as I know. This is the standard mode, with ping times: This is the ...
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1answer
46 views

Ping IP address, but not on network

I have a weird thing going on! I can ping this address: xx.x.x.x but it is not on the network because I do netstat -a xx.x.x.x and it tells me that there are no hosts. Perhaps, I do not have that ...
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161 views

PING domain is very slow but NSLookup is instant, website takes a long time to appear

My Internet is behaving very strangely the last few days, DNS resolution is very slow, PING domain can take a minute - sometimes the there's no delay for a period of time. PING IP address and ...
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1answer
205 views

Very high latency caused by router?

I'm getting very high pings (2000-10000ms), and intermittent internet connection when using a wireless router (be it on LAN or WAN). When connecting a desktop directly to the cable modem, there are no ...
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1answer
280 views

Ubuntu virtualbox host connection issues

im very new to the server world and trying to follow a book which i should be learning about Magento with but it describes a way of setting up a virtual machine using oracles Virtualbox and installing ...
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1answer
234 views

First ping always fail with “General failure” or “Request timed out”

I'm using Windows 7 Ultimate SP1 and this problem has puzzled me for a while. No matter which address I ping, first ping always fails. Any advice of what to check? Pinging 8.8.8.8 with 32 bytes of ...
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1answer
22 views

ping repeater at bootup and never stop

I have a wireless repeater which for some reason loves to go into sleep mode all the time, even if it is not supposed to. The manufacturer swears it's not a defect, and when it works, it works great. ...
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0answers
57 views

OSX: Can NOT ping to the network interface of NAS

Suddenly, I can NOT access NAS using Finder so I tried to do ping to the network interface of NAS with straight cable which is connected to the box directly. But, I could NOT ping to the interface. ...
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1answer
297 views

Pinging between two different vm's with different subnet on same host

I am running a windows machine and i am running virtualbox on it I have two VM's for cent os. I want the two VM's to ping each other but they should have different subnets. I am not really sure how ...
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58 views

Can 'ping' requests still be used for a DoS attack?

I was reading this question, and couldn't help noticing this part of one of the answers: On the Internet, ping of death is a denial of service (DoS) attack caused by an attacker > deliberately ...
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0answers
216 views

Can ping facebook but not access

I live in Canada, and run a windows 8.1 laptop, primarily using Google Chrome version 35.0.1916.153 m. Within the past week, I find myself no longer able to access www.facebook.com with my laptop... ...
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0answers
27 views

kernel upgrade causes ping to fail

I am facing some strange problem. I compiled the latest linux kernel and used "make localmodconfig" to create my .config file. In the new kernel "ping google.com" does not work. However the following ...
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1answer
17 views

Network between three guest OS on linux

I need to create a network between three guest OS (ubuntu), one of them have to be smth like router between two others. See scheme below: [A] eth0(ip 1.1.1.1)-->(net1)<--eth0(ip 1.1.1.2) [B] ...
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1answer
41 views

www0.sun.ac.za replies to pings?

I am working in a hosting environment. I was troubleshooting a dns issue and meant to ping www.sun.ac.za (local town university) and made a typo while specifying the host. I specified www0.sun.ac.za ...
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1answer
128 views

Cannot connect to or ping network printer

I've just bought my first network printer and I'm having problems setting it up. I've walked through the setup procedure, and it's correctly connected to my home wifi, and it can connect to the ...
83
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7answers
11k views

Is it possible to ping an address:port?

I am not into networking, and I have the following question related to the Linux ping command. Can I only ping an address? For example: miner@raspberrypi ~ $ ping onofri.org PING onofri.org ...
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1answer
54 views

ping -s values on Windows NT 6

Windows NT 6 (Server 2008 R1 32-Bit) offers -s Count : Specifies that the Internet Timestamp option in the IP header is used to record the time of arrival for the Echo Request message and ...
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1answer
227 views

Unable to ping from local os(operating system) to virtual machine(vm ware) os( both on a same machine).

I am unable to ping from my windows 7 to virtual machine (ubuntu 14) which is installed on the same system or vice versa. But form other system i am able to ping and everything is working fine. What ...
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160 views

I can't ping google, local ping is okay, resolv.conf is okay

I use Debian7 image under VMware player for Windows 7. All was okay. Pinging google was okay. But after resuming the Linux machine, something happened with network connection. After some playing with ...
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2answers
156 views

What is 67.63.55.3?

On my Mac, if I ping a single-word domain, I see: PING asdfsad (67.63.55.3): 56 data bytes 64 bytes from 67.63.55.3: icmp_seq=0 ttl=241 time=93.308 ms 64 bytes from 67.63.55.3: icmp_seq=1 ttl=241 ...
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1answer
212 views

Online computer not responding to pings

I was doing a bit of scanning on my network lately, knew all the hostnames to each computer connected. But whilst pinging one of them ping returned Request timed out.. This is strange as I know the ...
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2answers
91 views

How to monitor changes in the frequency of network latency spikes over time?

I'm currently trying to troubleshoot an issue with my network in which I get latency spikes up to 200 seconds (normally around 50 secs) in an apparently random way at apparently random moments of the ...
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1answer
161 views

Can ping localhost but can't browse

I know this is a pretty common question but I did my research and couldn't find a solution for this issue. I'm configuring a development application server and I came to the point where I can ping ...
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0answers
81 views

Ping results “echo'd” out to a text file on Windows XP machine has unusual character rather than the expected outcome

I have a Windows XP machine on which I would like to ping another machine and send the output to a text file for review at a later date. This is quite a standard question with several answers on this ...
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2answers
735 views

Ping exit code and python

I am using os.system ("ping 192.168.178.5") command to ping a machine. Funny thing is, I get exit code 0 even if ping fails. How can I get something that tells me the ping failed/host is offline?
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31 views

Machines in my local network can ping my machine only if I ping that machine

I have Lenovo G580 laptop with Centos 5.9 installed in it. My machine is accessible by some machines in my network, but many machines(both windows and linux) are not able to access my machine. But ...
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1answer
43 views

Ping of 2 VMs does not work

I installed 2 VMs on a VirtualBox. I used Host Only NetWorking and NAT. VM 1: Windows XP with the following network settings: VM 2: Ubuntu Server 11.04. Network Settings: when I ping a given VM ...
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2answers
340 views

Can only ping on LAN, not internet

I have 2 computers running Ubuntu 12.04 connected to a router on the 192.168.3 subnet. This router is connected to another router via the first router's modem port, so the 192.168.3 router has access ...
3
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1answer
501 views

Can't ping printer on one computer, can on the other

I'm trying to ping a printer with a manual IP address of 192.168.1.5 on a 192.168.1.0/24 network. I have two computers and a printer with the following ip settings: Windows 8: IP: 192.168.1.100 ...
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0answers
48 views

Ubuntu: Gateway does not forward broadcast PING

I try to set up a test environment using Ubuntu VMs to generate IDS data for the Smurf attack. For that I need broadcast PING to work. The setup is pretty simple. There is a victim network and an ...
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2answers
140 views

Loopback address set for facebook and youtube

I have Windows 7 laptop. I can not access facebook and youtube. It is a office laptop and Symantec Antivirus is installed with centralize management. If I ping both the site like : ping ...
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1answer
1k views

Why does it take longer to ping by hostname than by IP address?

I've noticed that pinging by hostname is slower than using the IP address. For example, in the Linux command line: $ time ping google.com -c 1 PING google.com (150.101.213.160) 56(84) bytes of data. ...
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2answers
1k views

From where do I get a reply if I ping broadcast address 255.255.255.255 from a router

When I do a ping to the broadcast address, I get reply from self-loopback 127.0.0.1. Is this scenario correct or should I get reply from the longest-prefix IP? ping 255.255.255.255 PING ...
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0answers
239 views

Why can I only ping if my command prompt is running as Administrator?

I have a problem where, if I open a command prompt and try to ping a server, it gives me the following error: PING: transmit failed. General failure. However, if I run the command prompt as ...
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110 views

Is it possible to “ping” an embedded device connected through a JTAG interface (USB)?

I currently have an atmel at91sam7x256 embedded device that is connected to my Windows machine through a JTAG interface of USB type. I am having difficulties getting the ethernet port to work, and ...
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1answer
94 views

Difference between DNS and /etc/hosts in name resolving during an HTTPS request

My question is: what is the difference between DNS and the static resolution method based on /etc/hosts in name resolving during an HTTPS connection? In order to connect to a site using https the ...
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1answer
4k views

Batch File, PING, errorlevel and > null what do they do?

This seems like a really easy question (running Windows 7). But I have looked for the answer and couldn't find anything at Microsoft's sites (XP PING & Everything else PING) or from a bunch of ...
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1answer
464 views

Cannot ping from one physical machine's internal network to another physical machine's external network

I wanted to know why I am not able to ping from a physical machine's network interface (a private network) to another physical machine (this one has two network interfaces: a private interface that ...
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1answer
99 views

Ping works, other commands fail

I'm behind a proxy at work. When I try to ping google, it works. When I try to wget, I got stuck on the "Connecting to [proxy name]". I tried both via the "google.com" adress and via the IP adress I ...
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2answers
125 views

ping behind firewall, success for some hosts, fail for others?

I'm under firewall, I can ping to some hosts but not to other hosts my IP addresss 172.19.7.111 mask 255.255.240.0 I can ping to host 172.19.2.111 (that I discovered with Angry IP Scanner) but not ...
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1answer
535 views

Windows 8 - Cannot send outgoing pings

Recently I seem to have encountered an issue within my computer being that I cannot ping or be pinged. this has existed for quite some time, but i've ran out of troubleshooting ideas. (I have tried 3 ...
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0answers
778 views

Windows: ping's timestamp option

The Windows "Shell" (cmd) provides the following option for ping: -s Count : Specifies that the Internet Timestamp option in the IP header is used to record the time of arrival for the Echo ...
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0answers
24 views

Losing first hundred pings

My internet connection seemed slow, so I did: sudo ping -f www.google.com The strange thing is that I see I'm losing the first couple hundreds of pings, but after that it behaves as it should ...
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2answers
55 views

ping and traceroute not running despite I'm connecting to internet

I'm under firewall, I'm using linux, I try ping www.google.com and traceroute www.google.com. traceroute reach gateway and ping give nothing dispide I'm connecting to internet.
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1answer
61 views

Unable to connect Ubuntu remote machine

In Ubuntu I've installed Tomcat and deployed the web application. I started tomcat and trying to access from Windows like below http://54.85.125.1:8080/manager Error could not connect to ...
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144 views

ping doesn't run after a windows server update

I break my head with this new problem ... At beginning of April, my windows server sbs 2003 was updated (8 updates) automatically by Microsoft. The OS restarted after these updates during the ...
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1answer
88 views

I want to ping IP using LAN cable not wireless

I have one machine connect to network using two method : Wireless - got internet access - Class C ip : 192.168.2.xx - Connect with local network with few PCs. LAN do not have internet access ...
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2answers
73 views

Apparent IP doesn't take me to website

I noticed that sometimes, when ping requesting a website, I receive an IP Address that doesn't in fact take me to that domain name. It instead takes me to the default server page. For example, if I ...
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0answers
18 views

can a successfully pinged IP address not be in the arp table

Basically the whole Q is in the subject... Is it possible or how would it make sense that I have pinged an IP address that is on the same local network that I am on, And still when I do arp -a this ...
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0answers
62 views

Why does Windows use the same identifier for different ping sessions?

I noticed while debugging some NATing issues at work that Windows (Windows 7 in this case) echo reply and echo responses are always setting the ICMP identifier field to the same value regardless of ...