Top "Ping" questions

Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer.

How to ping faster when I reach unreachable IP?

I have an app which pings IP or IP range. The problem is that when hosts are closed it takes …

c# winforms ping
Cannot ping google.com from Ubuntu terminal behind a proxy server

I am connected to the internet through a proxy server. I am using an Ubuntu installation and have made the …

ubuntu proxy ping proxy-server
Is there a way to check if a host is up?

I'm trying to do this in PHP. I need to check if a specified host is "up" I thought of …

php ping fsockopen
How to implement PsPing TCP ping in C#

I am trying to implement Mark Russinovich's SysInternals PsPing tool in C# to measure latencies using TCP ping. I am …

c# tcp ping
Java InetAddress.isReachable() timeout

I am trying to find out if specific hosts on my network are reachable. My java code is as follows: …

java ping inetaddress
Pinging personal IP versus pinging loopback

What's the conceptual difference? Yes I realize they're both supposed to produce similar results but I thought the idea with …

networking ping loopback
Difference between a ping and a heartbeat?

I have never heard of the heartbeat until the heartbleed bug. I wonder what is the difference between this and …

ping heartbeat
How to ping an IP address in Delphi 10.1 without using Indy components?

How to ping an IP address (or by server name) in Delphi 10.1 without using Indy components? TIdICMPClient works with elevated …

delphi ping icmp
NSlookup - Non-authoritative answer

When I nslookup behind our firewall i got Non-authoritative answer like this Non-authoritative answer: Name: sitius.com Address: 173.44.39.70 but if …

networking dns firewall ping nslookup
mysql server has gone away in PDO

I am running my php script and getting an intermittent issue: PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[…

php mysql pdo ping reconnect