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Questions tagged [ping]

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

Ping is used to send an ICMP packet to a remote host. The ICMP type sent is an echo request, and the type the remote host will send back is an echo reply. Some firewalls or hosts may block ICMP, so ping should not be the only tool used for troubleshooting.

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Time Capsule giving high ping times for wireless

We've just set up an Apple Time Capsule for our network, and while things run fine in wired mode, with wireless mode ping time fluctuates wildly from 0.5 to 400ms: Ping from a Macbook Pro to 10.0.111.1, which is the time capsule machine itself (DHCP…
Karl
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Are network and broadcast IPs supposed to respond?

I have a /24 network that is subnetted into a bunch of small chunks. I have recently gone into each router on the network (mostly Cisco) in order to document how this network had been divided. Now looking at a ping sweep output from: nmap -sP…
Cory J
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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 ever seen a ping response time of more than a…
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NetBIOS names over VPN

I have a Windows Server 2008 R2 box hosting a VPN to grant remote access to a home network. The network does not and will not have a domain. (I need FUS on XP machines) The VPN works fine, except that I cannot access any other machines by name over…
SLaks
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Cannot ping anything from tun interface

I'm setting up a VPN server using OpenVPN server 2.4. The client connects to the server, but I can not seem to be able to ping any other host except the server or other clients on the VPN subnet. The server can be pinged by the local network address…
Ryan Bester
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Different nslookup answers on different clients in local network with local DNS

Situation: I have a few clients in a local network. I have a server named amp003 with IP address 192.168.4.13 I have two DNS servers (each one on relative DC server). On client 1 I did following: nslookup amp003 DNS1 -DNS1's…
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Hyper-V hosts inconsistent network connectivity

I am having trouble with two of my servers that stopped being able to communicate (in a weird way). Servers are both Microsoft Hyper-V Server 2012 (the ones without GUI). Name: HVS1 Ip Address: 10.0.0.11 Hosts a VM called servidor Name: HVS2 Ip…
pgr
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Server comunication fail on same IP block

Good morning, I own 7 servers in the same DC. Of these, 4 of them are unable to communicate with each other: each of these 4 machines does not communicate with the other 3 via SSH and there is no response to ping ("Destination Host…
Carlo Queirolo
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Authoritative DNS will not respond to pings or digs on domain

I am making an Authoritative DNS for a new site. The site responds nicely to all pings and most digs on its IP address, however rejects anything to its domain name. I would presume this is due to a DNS forwarding problem, but I can't make heads or…
storm
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How to ping OpenVpn server to see if it's up?

I just want to check if my remote openVpn server is running. That's is. How can I do that? It'll be safer to use "top" or "ps aux" but perhaps I can ping it somehow instead, that is, without having to connect/authenticate via ssh first?
Jodari
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Ubuntu 16.04 server is listening but not accepting incoming requests

I recently upgraded my server from Ubuntu 14.04 to 16.04. The upgrade seemed successful (so I'm not sure if it's related) but about a week in I restarted the host and it now will not accept remote requests. I can connect to the terminal using my…
Godwin
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Measure RTT for SSH

I'm trying to figure out a way to measure RTT for SSH connection, but my google-fu is too weak (perhaps I'm asking wrong questions?). Something akin to ping , for cases where SSH works, but ICMP does not.
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Can Only SSH After Ping

I have a virtual machine running RHEL 6, which I can only access after ping. [user@localhost ~]$ ssh remotehost Connection timed out. [user@localhost ~]$ ping remotehost PING remotehost.example.com (10.1.60.93) 56(84) bytes of data. 64 bytes from…
Frederico Martins
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OpenVPN - ping duplicates packets

There is an issue that I cannot find answer for. I have typical setup OpenVPN - 1 server with 10.8.0.0/24 subnet and a 1 client with 10.8.0.5 address. Whether the connection from the server to the client is established or not and I am trying to ping…
Inixi Noisse
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Ping problems with two interfaces, same subnet, direct connections to two separate hosts

I have a configuration of a client machine (Ubuntu 14.04.2 LTS) that directly connects to two server machines. The server machines--while on the same subnet--cannot route to each other. Packets must not route between the client's eth1 and eth2,…
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