Questions tagged [ping]
Ping is a mechanism to see if a remote host is reachable via an IP network
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OS X: Can't Resolve Windows Machine Names [closed]
I'm running a mixed environment at home and at work. My server machines are Win Vista, and I have a Unibody Macbook Pro running 10.5.7
On my mac, I can ping some home windows by name (If I use the ...
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Ping Equivalent For Checking If A Port Is Open
How do I check if a port is consistently alive? For example, I could use
ping 192.168.1.1 -t > results.txt
This will ping 192.168.1.1 continuously so that I could monitor it.
Is there an ...
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Does a High Variation in Ping Response Times Indicate a Potential Network Issue?
My department has recently moved offices. The previous office was fine, but in the new office, the ping times from my PC to the 2 data centres usually varies a lot, like this:
Reply from 123.123.123....
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IPv6: Can't ping anything - "Operation not permitted"
I've been working on getting IPv6 support into my network, and had everything working properly for a short while. The server is running Ubuntu Server 8.10.
Now however whenever I attempt to do ...
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A non-recoverable error occurred during a database lookup
Short version: Why does Test-Connection report "A non-recoverable error occurred during a database lookup" for an offline host on a different subnet?
I'm using PowerShell to ping a remote host with ...
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Public hosts for ping
For my firewall scripts to determine whether my ISP is up I need a few reliable, geographically distributed addresses to ping.
I could just use some major sites like Google, Akamai, etc. But that ...
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Time to live exceeded, result after pinging the gateway from host in one subnet
I got a server with XenServer 6.0.2 and this server has 3 nic with 3 different ip addresses,
because I am using 3 different subnet
The first 2 card are working and from the first 2 subnet I have ...
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How can I enable Ping on an Azure Linux VM
How can I enable Ping on an Azure Linux VM, Centos 6.6 - I know we can enable this on a Windows VM, but how to do this for a Linux VM?
Thanks.
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Linux : Ping all the host in the subnet
There is one solaris command to ping all the hosts in the subnet by issuing :
ping -s 255.255.255.255
Is there anything similar to this one in linux ? My intention is to find one mac address as ...
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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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Why would ping give me fast rtt values, but take a long time for each response to come back?
I've got a bit of a basic networking question here regarding ping.
When pinging a particular host on a completely different subnet, I get a response like this:
PING myhost.example.com (1.2.3.4) 56(...
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Ping request could not find host www.google.com. Please check the name and try a gain [duplicate]
I'm using Windows XP Professional Version 2002 Service Pack 3.
I have issues with DNS (after affected by some malware). I cannot ping the sites, but I can browse using a web browser.
I have tried the ...
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ping fails but ssh succeeds
I'm facing a situation where one app(using ssh) can connect from Machine A (Linux) to Machine B (windows), whereas Machine A cannot ping Machine B. Another app on Machine A which connects to Machine B ...
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able to dig a hostname but doesn't resolve via ssh or ping
I am using Snow Leopard and cannot ping or ssh into a host but am able to dig:
dig some.value.host.com
When the ip address comes back in the answer section, then I am able to ssh via ip address (
...
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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 ...
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ping with line numbers
Simple question: how to make ping on Linux to show line numbers in output?
I mean:
1 64 bytes from www.site.com (2.7.1.1): icmp_req=1 ttl=247 time=17.9 ms
2 64 bytes from www.site.com (2.7.1.1): ...
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Monitoring: What does mysqladmin ping report?
I'm trying to monitor whether our mysql server is up. The command I'm using for this is:
mysqladmin ping
It will return the following:
mysqld is alive
Does this just check whether the process is ...
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Can't ping EC2 instance after enabling ICMP packets [closed]
I followed this guide to allow me to ping my EC2 instance. In my security group I have Custom ICMP Rule - IPv4, Echo Reply, N/A, Anywhere.
However it simply doesn't work. If i run ping ec2-X-X-X-X.ap-...
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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 ...
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Is it possible to ping through a NAT?
It it possible for a PC behind a NAT ping to a device that is on the outside of the NAT and get a successful response? (assuming the firewall permits it)
This is a Cisco RV 120W router
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VirtualBox bridged adapter can ping but can't curl
There is a dedicated 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 "...
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Slow ping responses on LAN, but only in one direction
I've been investigating intermittently dropping RDP connections from my laptop and decided to ping another machine on the same subnet to see if there are any dropped packets or slow responses. The ...
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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 'solo',...
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Why is ping to Google servers and Google DNS so low?
I noticed that ping to Google DNS and to google.com from Serbia is about 15ms, but google servers are located in California! http://www.geoiptool.com/en/?IP=173.194.39.110 My dedicated server is ...
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How network devices affect TTL
When I do a ping, I can see the TTL value for each packet. For every router that I insert in between my computer and the router that connects to the internet, the TTL value goes down by one. However, ...
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Unable to ping, although can download packages
I've installed Debian Squeeze on a Dell PowerEdge server. However, I'm facing some problem with configuring the network. Although I can ping machines inside my network, I'm unable to d0 so outside the ...
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Command line tools for ping HTTP? [closed]
Background : It's a common question as we can search at google "ping works but http does not"
ping is not a reliable test of network connectivity.
ping working just means enough of the IP stack is ...
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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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Fast pinging without requiring the response [closed]
I am trying to measure one way latency between two machines and I would like to use ping to send ICMP packets from one machine to another. The interval between the packets should be 1 micro second (...
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IP address used by nslookup and ping is different
I have a web server hosted in the network. It has a domain name registered. However, I also host a DNS server for the LAN. So, when someone wants to access the web server, it would check the DNS ...
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Hyper-V: Not able to ping my local VM from Host
I have an external ethernet switch which I'm using to connect to my VM. I'm able to access internet on my local VM. The problem is that I'm not able to ping it.
I've done the following after reading ...
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ping -f shows problems but regular ping doesn't
I have a strange issue, hosting at Softlayer Washington data center.
Test from an EC2 instance to my server at Softlayer :-
[root@EC2-box ~]# ping -f -c 100 MY-SL-BOX
PING MY-SL-BOX (MY-SL-BOX) 56(...
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Ethernet Loopback plug - running a ping
For a project at work, I need to be able to test various Ethernet NICs by connecting them to a "loopback adapter plug", like this one on various embedded Linux boxen that come off a production ...
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Why EC2 instance continues responding to a ping request after deleting the inbound security group rule?
While playing around with AWS console, I tried the following
Launched an EC2 instance (public IP enabled) in the default VPC with the default security group, and default subnet.
EC2 launched in the ...
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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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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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Does Linux support IPv4 mapped IPv6 addresses?
I work in a mixed IPv4 / IPv6 environment. I read that IPv4 addresses can be mapped into the IPv6 space with this syntax
::ffff:1.2.3.4 (1.2.3.4 is the IPv4 address)
Does Linux support this ...
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How can I use ping with a large packet size to troubleshoot network issues?
What types of network problems can be identified with ping of a large packet size?
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Pings from VPN network to VPN client work; pings into from VPN client to VPN network fail - why?
We are in the process of setting up an OpenVPN server for some servers running in a cloud. We are stumped with a connectivity problem whereby the hosts on the VPN server's LAN can ping te VPN client, ...
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Intermittent high ping/latency problem
I have been working with my ISP (which is a WISP, actually Fixed Broadband Wireless) trying to figure out why I intermittently get high latency. The latency is detectable in online games and other ...
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Max ping response time?
I'm wondering what a maximum (practical) ping response time might be. As far as I know, there isn't a max defined anywhere (TTL, but that's hops, not time). As I think about it, I'm not sure I've ...
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ping: sendmsg: Operation not permitted (sometimes)
On a Ubuntu 14.04 running Haproxy, after a service haproxy reload, Haproxy is suddenly reporting all servers behind it as down.
After some digging around, I noticed that ping is not working properly, ...
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Linux ping command exits early due to ICMP host unreachable
An automated script runs shutdown -r now on a machine, and after a 30s delay, uses ping to determine when the machine is available. I've recently switched the OS from Centos 5 to Oracle Linux 6 and ...
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Loop redirect when ping my gateway
I have a router with WAN and LAN setup and act as DHCP server/gateway on my local LAN. The IP address is 192.168.1.1.
Today, I was hit by an internet failure and I checked the ping and get this ...
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Wget works, Ping doesn't
There are some anomalies on a Virtuozzo virtualized Debian 4 (I know, I'm gonna upgrade this one asap, but there dependences). We run some Websites on this one. And a view Days ago exmi4 wasnt able to ...
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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 192.168.1....
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Can't ping host from vmware guest using bridged networking
Host is Windows 7
Guest is Ubuntu 11.04
Network adapter is wireless
I can ping other computers on the network but not the host. No firewall are involved.
Sniffing the traffic with wireshark it ...
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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 ...
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Why am I Unable to ping port 443 on Ubuntu?
I have opened port 443 through iptables:
pkts bytes target prot opt in out source destination
45 2428 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0
6 1009 ACCEPT tcp -- * * 0.0.0.0/0 ...
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Why can't I ping my server?
I am logged onto my Windows Server 2003. I am trying to ping another server that is Windows 2008 by using the command promt and putting in the ip address that I had given it. For some reason it seems ...
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