Questions tagged [ping]
Ping is a mechanism to see if a remote host is reachable via an IP network
944
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Why is it not possible to establish a connection between these servers?
I have the problem that my two servers (master, worker) can not connect to each other. However, connections outside e.g. "google.com" are possible. I have already tried to allow all ICMP ...
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Ping request generates response but sender doesn't see response
I have an embedded linux system with an ethernet PHY that is connected to a switch and then directly to my PC. After setting static IP addresses I found I could not get a working ping in either ...
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Lowering latency to distant endpoint
I need the lowest possible latency from Bulgaria to Korea.
From what I understand, as an individual there is not much I can do to choose which physical cable my internet traffic travels on across ...
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1
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Why is ping from New Jersey faster than from Tokyo to binance (in Tokyo)?
I am thinking of using vultr as VPS. When I do a ping to binance api.binance.com which have their servers in Japan on the site https://hnd-jp-ping.vultr.com I get much worse ping from Japan than if I ...
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ping fails when bond0 switches slaves, ip stays the same
setup is fresh debian 11
Bonded connection (bond0) is created using all nmcli commands
sudo nmcli con add type bond con-name bondcon ifname bond0 mode active-backup +bond.options "primary=eth0,...
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Why is Linux policy-based routing (PBR) not working for ping?
First of all, it seems as if this question is about Linux, but it seems to me that it is about basic routing concepts.
I happen to have the following configuration:
What I am trying to do is to ...
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43
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Network Skip Pinging Every 3 minutes periodically for 2 sec
I have an application runs in UP Board | UP-CHT01, which will do an operation and send the data to NATS Messaging Server. ( Which is running on another PC i.e, not in the same board)
While testing the ...
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Low cost TCP listener for Azure
We've been going through the process of migrating VMs from our data centres into Azure.
When migrating, one of the gotchas is networking rules; i.e. there are NSGs, hardware firewalls, OS firewalls, ...
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Ping performance improves during iPerf3 network congestion test
I am beginning to learn about networking and testing network performance (specifically on containers). I am trying to learn how to perform good network tests to see networking capabilities of docker ...
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ping 100% packet loss - can't ping to server
when I try to ping my newly created server it shows:
vasanth@vasanth-client:~$ ping -c 4 server.ip.name
PING server.ip.name (server.ip.address ) 56(84) bytes of data.
--- server.ip.name ping ...
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Does frequent ping affect local network speed?
(Sorry for my english)
Hi, I am about to set up a monitoring server and wanted to know if pinging the network devices could significantly affect the speed of the local network.
I want to ping every ...
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debian wheezy has packet loss on ping
There is an old debian wheezy server in my office. Any network operations involving this server are very slow, whether ssh, scp, or using its Apache web server.
Pinging from inside this wheezy server ...
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Setup new router with SQM - Buffer Bloating solution
Scenario. I'm in Tbilisi, Georgia.
I have very high ping to EU servers(100ms+) plus a huge buffer bloating problem, this test gave me the F rank: https://www.waveform.com/tools/bufferbloat
I use an ...
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Host ID's on Network not in succession of 'active' or established devices?
Disclaimer: I am new to networking.
I ran a arp -a command on Terminal to establish what devices are currently active on the network. I was returned a number of devices with Host ID's that were not in ...
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Why do I see more than one IP address for my site when I PING it from CMD? [closed]
I have a website (cimahouse.co).
Every time I wanted to reach my site, I got a different IP address.
Sometimes domain cimahouse.co opens normally, and sometimes it should write it with www.
I tried to ...
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PC/Switch (in one subnet) connect to Switch (in another subnet), but not to PC connected to the switch
[UPDATE]
The problem/behavior described below was caused by the public network connection on the system -which had a default gateway. The unusual behavior was a result of the private network sending ...
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List all active devices in different subnets?
My company has a class A network that contains various subnets. I need to automate a way to produce a list of all online devices (in all the subnets). To start, just a list of responsive private IPs ...
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351
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How can I make my nginx web server reachable from outside its local network?
I am trying to reach a subdomain of my website from outside its local network.
I can successfully ping it (ping my.subdomain.com):
PING my.subdomain.com (ser.ver.ip.add) 56(84) bytes of data.
64 bytes ...
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1
answer
95
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Ping device connected to host having LAN access
I've been playing back and forth routing games for a couple of days.
As it is quite hard to describe with words I made a diagram below:
What I want to achieve is being able to ping Rpi 4B from Rpi 3B ...
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pinging over interface fails, pinging over ip address of interface succeeds
I often use the ping -I option to test if an interface forwards packets correctly.
A Raspberry Pi 3 has an interface named eth1. It is a USB to female ethernet connector.
I manually configured this ...
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I can't PING to my Cisco router when I try to access the domain server
I have this network image
I tried to connect the pc1 to the domain (in Windows Server 2012).
To do that I tried to PING from pc1 to the server and that works.
After that I go the pc1(Windows 7) and I ...
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How is it possible that I'm getting a 13ms ping RTT from London to a New York IP?
I have created a Digital Ocean - App Platform app in the New York region.
When I ping my domain, I get this IP address: 172.67.143.96 and this RTT 13.501ms
If this IP address is actually in New York ...
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Static IP configuration with ip command in Linux gives Destination Host Unreachable
I am a total newbie when it comes to network configuration. I would like to configure my Ubuntu 18.04 PC so that it connects to a device.
I use USB to Ethernet converter and connect the ethernet jack ...
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74
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How to make ping-check in case of split-brain?
What I want - in case of split-brain (connectivity loss between two nodes) ONLY, each node should check ping status and start resources if ping is OK. How to implement this?
"pcs config show"...
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358
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Cant ping between 2 machines in same subnet
I have machine A ubuntu with IP address 192.168.1.70 and machine B windows 10 with ip address 192.168.1.45. When i try to connect them using a lan cable i can ping between 2 machines successfully .....
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Unable to ping between two devices in two subnets connected via router
I have two systems running on Windows, the first one S1 in subnet 192.168.3.0 and the second one S2 in subnet 192.168.2.0. Both are connected to my Linux box, say R1, which I want to act as router for ...
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Cannot ping EC2 instance from AWS CloudShell
I cannot ping the private IP either from the AWS CloudShell or another EC2 instance:
[cloudshell-user@ip-10-0-161-171 ~]$ ping 10.1.0.10
ping: socket: Operation not permitted
Ping is enabled on the ...
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How to ping backup interface?
this is my network configuration:
bond interface 192.168.101.50/24 has two salaves: eth1 (192.168.101.1) that is connected to 192.168.101.2 and eth2 (192.168.101.10) that is connected to 192.168.101....
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Oracle Linux 8 can't resolve host names using DNS
EDIT: FIXED -- My Egress Rules were blocking TCP/UDP 53.
I have a stock Oracle Linux 8 server running on Oracle cloud (OCI) with Postfix installed that stopped resolving names through DNS after a ...
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4
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758
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Why is ping time much higher using wifi than Ethernet connection?
I have struggled with API of https://api.materialsproject.org recently. Because it is so slow and unstable when fetching data. I thought it was just the problem of this site. However, I found it is ...
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BGP: I cannot ping an address even though it exists in the routing table
I have the topology from the attached image with I-BGP neighborship between 192.168.21.1 and 192.168.21.2 and E-BGP neighborship between 192.168.6.1 and 192.168.6.2. I have advertised network 2.2.2.2/...
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Access mysql from another computer connected with crossover cable
I have two computers, and i am trying to access mysql via network on port 3322 (mysql listens on this port)
Computer A Server:
Windows 10 home
Added firewall exception to port 3322 (mysql installed ...
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The packet goes through the other router
I want to connect two hosts in parallel with two different models of virtual routers.
These are made redundant by VRRP.
Originally, packets are sent through only one of the routers.
However, when the ...
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How can I get an alert me if ping is not sent from windows service I created?
Let me explain the problem. I created a windows service that should run a method every minute, but it seems to fail at random times for an unknown reason. The application doesn't crash but some how a ...
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Can not connect to Linux instance using SSH through Putty
Just signed up for GCP account and created a Linux VM on GCP (SUSE) and having issues to connect via SSH through Putty.
Also tried through CMD prompt on Windows 10 and get the same issue. Followed up ...
google-compute-engine
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"ping" fails when running from google- cloud on specific IP
I'm trying to access www.fastlane.co.il trough google cloud servers.
I got the IP 81.218.67.65. When i ping it locally on my computer it works fine.
Local results:
Pinging www.fastlane.co.il [81.218....
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Can ping OPC UA server, but cannot connect to it
I have an OPC UA server running on a PLC from BR Automation and would like to connect to it from UaExpert running on a Windows 10 machine.
It has worked previously, but after physical re-placement of ...
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957
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FreeNAS unable to resolve hostnames, ping of any external IP returns host's ip instead
The internal IP address of my router changed, and ever since TrueNAS has been misbehaving. None of the jails can resolve a hostname anymore. In troubleshooting this, I discovered that the client ...
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Why IPv6 neighbor solicitation uses multicast instead of unicast address?
I'm on Linux and I want to ping fe80::1234:56ff:fe12:3456%eth0 which is connected to the same Ethernet switch as my eth0 interface. I haven't yet communicated with fe80::1234:56ff:fe12:3456 so I don't ...
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Slow traffic(high ping) of MikroTik on Hyper-V
I am new to networking.
I installed MikroTik with one Windows server and two Windows 10 clients within Hyper-V. It is routing and I can access the internet from one of the Windows VMs but it is super ...
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782
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DNS cache: systemd-resolve and ping resolve different IP addresses
I have changed the IP address in a DNS record (on Google Cloud DNS), associated to a subdomain test.example.com
From my Google Cloud VM:
if I ping test.example.com, I get the old IP address
if I ...
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answer
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Why when I ping the FQDN of an EvenHub in Azure I get three different IP addreses?
I got connectivity problems with azure behind a firewall, so I made an script to ping every one minute.
Why when I ping the FQDN of an EvenHub in azure I get three different IP addreses?
why there are ...
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Cant ping my PC on LAN until user is log in directly. destination host unreachable
It shows this when pinging from other devices in the local network
From 192.168.0.191 icmp_seq=1 Destination Host Unreachable
However once I log in my PC (192.168.0.191) I can ping it from other ...
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WSL PING "system error"
I have a weird PING error in WSL2, Ubuntu 20.04 distribution.
When I'm doing nslookup - all ok:
root@i:~# nslookup google.com
Server: 172.19.224.1
Address: 172.19.224.1#53
Non-...
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702
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Routing Issue: Cannot reach target server from local network
1. my setup:
I've got an optical fibre ZTE router from my ISP for internet and telephone.
My old analog phone is connected directly to the router using the dedicated phone port on my router.
(For ...
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1
answer
1k
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Local devices aren't reachable via VPN
I have a VPN configured on a router (router model is bintec be.ip plus).
VPN Connections are successfully established by the clients using IKEv2 (router is reachable via DynDNS).
Router's local ip ...
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370
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How to check if a remote server is up through a proxy?
I have a series of lab linux server (centos/rh) that are built using an automated PXE install via kickstart file. I would like to use another automated process (ansible) to monitor when the ...
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284
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Can't ping PetaLinux machine if both NICs on same subnet and unplug eth0
I have a PetaLinux machine (Embedded Linux on a Xilinx Zynq device, debian fork, kernel 4.19). If the two NICs are on different subnets, then I can disconnect one NIC, and the other will continue ...
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Subdomain with variable IP
Subdomains like http://3qax.munzer.webproxy.idc-lorien-apiver01-repay-action.bh-arppofind.comssets.mealcardhss-int-bh-awwwppofind.wire.2.homeetingroom.walmartmobile.cn presents a behavior that when I ...
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Permission denied (publickey) - in setting up Kubernetes cluster with Kubespray
This issue is from the following documentation How to deploy Kubernetes using Kubespray. I followed their documentation word by word and reached at this point:
ansible -i inventory.ini -m ping all
...
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