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

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1
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3answers
23k views

Can't ping certain IP's on same subnet?

Firstly all devices are ON and have an active/working network connection. Secondly the device I'm trying to ping from is pingable from the devices I'm trying to ping! Right, we have a secure VPN ...
1
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0answers
21 views

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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1answer
44 views

Is there a dedicated server that is legal to ping frequently with a massive number of devices?

I have thousands of devices and all of them need to have some kind of communication pass through them every couple of seconds to stay active. Pinging is sufficient for keeping the devices active. Are ...
2
votes
2answers
772 views

RDP add domain users broken

I have 3 Windows Server 2008 R2 instances, all of which are virtual machines hosted on a single VMware ESX server: Domain controller with DNS services DHCP/RRAS File server All three servers are ...
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2answers
39 views

Ping another IP on LAN resolves my own IP [closed]

I have no network, computers attached to a router with DHCP enabled. I have two computers, both access the internet just fine... Typing into console ipconfig I get my IP: IPv4 Address. . . . . . . ...
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0answers
3 views

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

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 ...
1
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3answers
1k views

Sonicwall NSA2400 - No internet access

We've got a SonicWall NSA2400 configured with a LAN (X0) and a WAN(X1) interface. It was setup and working fine until just recently when a temporary worker changed some settings most likely NAT. We ...
0
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2answers
60 views

Server is reachable from outside but can't reach outside by himself

I have a server running the newest Ubuntu with openvpn and apache2 installed. This server is located in a 192.168.1.* LAN behind a router, the router can reach the internet. Machines inside the local ...
1
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0answers
62 views

Ping not working from tap interface attached to bridge interface with ip on same subnet as that of bridge to outside

My requirement is to create a multiple tap interfaces, each with ip address on same subnet. I tried this by creating a bridge br0 (192.168.1.199) ...
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0answers
38 views

KVM : domain names are resolved, but cannot ping

I've found that in KVM, my networking is acting funny. Oddly (1) I can resolve external internet locations using nslookup or ping , but I cannot actually receive a ping back. (2) I cannot ping ...
0
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1answer
28 views

ping TOS values

Windows Server® 2008 offers ping -v TOS Type Of Service (IPv4-only) Trying to figure out what they mean I came that far that this has to do with IPv4's "Type of Service" Field – ...
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0answers
23 views

NewRelic Availability Monitoring of Third Party Service

Background NewRelic offers availability monitoring whereby you can specify a ping URL for an application and have NewRelic send HTTP GET requests to that URL and GREP the response for selected text, ...
8
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2answers
3k views

DNS can't resolve hostname; nslookup can

I have a user on Windows 7 that is trying to access a local server with a DNS name of windows.cs. We have two internal DNS servers. The DHCP server assigns users the two internal DNS servers as ...
4
votes
3answers
6k views

Ping from specific network adapter on Windows

Hey, I've been troubleshooting network issues on servers with 2 NICs and laptops with wired and wireless cards. How can I force the PING and TELNET to be sent from a specific adapter? I know it's a ...
0
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0answers
60 views

ASA 5540 v8.4(3) vpn to ASA 5505 v8.2(5), tunnel up but I cant ping from 5505 to IP on other side

I am having problems pinging from a 5505(remote) to IP 10.160.70.10 in the network behind the 5540(HQ side). 5505 inside IP: 10.56.0.1 Out: 71.43.109.226 5540 Inside: 10.1.0.8 out: 64.129.214.27 I ...
2
votes
1answer
57 views

Any way to increase the libvirt guest network response time?

We are running a number of Debian Wheezy VMs on top of Ubuntu Servers 12.04.4 / Libvirt 0.9.8-2ubuntu17.17 The host is connected to the network through a trunk. It then split the VLANs and create a ...
0
votes
3answers
4k views

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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votes
1answer
45 views

Trace route to specific page on a website [closed]

If I can access a site (ie: serverfault.com) through my proxy/firewall, it means that it will allow all it's subdirectories (serverfault.com//)? I can access the website site.com/ but it returns me ...
1
vote
4answers
719 views

When I ping Internet addresses like yahoo or Google, I get 2 reply packets and 2 lost packets

I have Airtel broadband and a Tata broadband connection. i have around 50 PCs connecting through an airtel broadband connection. Both are dsl connections with my phone line going into dsl modems and ...
0
votes
1answer
319 views

RDP working but not able to ping and share can't be accessed through UNC [closed]

I am asking this for my live environment servers. So, kindly requested to consider this while answering.. I have 2 cases asked here. Please do number while answering. 1) I have a server which I can ...
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votes
5answers
1k views

Unable to ping Redhat 5.6 instance on vmware esx 5.1

I am running vmware esx 5.1 and I've created an instance of red hat 5.6 Desktop with a static ip address. When I restart the red hat guest I am able to ping it from another system but then as soon as ...
0
votes
2answers
2k views

arp -n responds with (incomplete) on the wrong subnet, can't remove it

context There are 2 servers: server1 - eth0 10.129.76.16 eth0.2 192.168.0.103 server2 - eth0 10.129.79.1 eth0.2 192.168.62.101 The 192.x.x.x addresses are connected to the ...
1
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2answers
2k views

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 ...
8
votes
9answers
15k views

How to ping in linux until host is known?

How can I ping a certain address and when found, stop pinging. I want to use it in a bash script, so when the host is starting up, the script keeps on pinging and from the moment the host is ...
0
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2answers
66 views

IPv6 address not available from outside

Since Hetzner pretty much doesn't give out any IPv4 addresses, no matter what the reason is, I decided to give IPv6 a try. These is the assigned IP address subnet mask IPs: 2a01:4f8:190:5112:: /64 ...
1
vote
2answers
3k views

Intel 82579LM Gbit Ethernet Controller - magic packet (WOL) right after ping is not working

I am experiencing a very annoying and mysterious behavior when sending magic packets (for Wake On LAN) shortly after pinging an Intel 82579LM GigaBit Ethernet Controller (the onboard ethernet ...
1
vote
1answer
80 views

ping seems to be timing out in a shorter duration than specified?

I'm seeing some weird behavior with the built in ping command that I don't understand. (this is on a windows 2012 r2 box - I haven't verified if this behavior is seen on other windows versions) If I ...
0
votes
1answer
68 views

High ping times and packet loss on Alcatel-Lucent OmniSwitch 9600

We have 2 Alcatel 9600 core switches in a redundant configuration and 2 distribution switches (Alcatel 6850's) on another floor connected by fibre to the core switches. See the diagram below. Pinging ...
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votes
2answers
46 views

How to manage PING replies? [closed]

How can I manage, for example, my Ubuntu mashine so it doesn't (or does) respond to PING(ICMP ECHO_REQUEST - type 8) requests? Normally almost all computers in a LAN network responds to ping with an ...
0
votes
1answer
100 views

When the Service Base Filtering Engine is active, ping and Remote Dsktvp do not work

In a Windows Server 2008 R2 When the Service Base Filtering Engine (BFE) Running is a Ping and RDP are disabled and do not work. But when I disable the service is Both Ping and RDP work. What do ...
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votes
1answer
49 views

domain does not have ping in CentOS VPS [closed]

I have a VPS with CentOS 6.x, DirectAdmin control panel, and CSF. There are about 40 domains on it, but one of them did not load since yesterday (itgates.ir). When I ping this domain, is there not any ...
1
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2answers
115 views

what does `pipe <number>` mean in `ping` output?

While running a test to diagnose some alleged network problem, I got this output from ping: --- r01c01b11n02 ping statistics --- 30000 packets transmitted, 29995 received, 0% packet loss, time 6309ms ...
1
vote
1answer
113 views

“Destination Host Unreachable” and ARP returns no addresses over LAN

I am currently trying to setup LAN over two machines with a network mask of 255.255.255.0 however I am receiving the following message when trying to communicate between them both; [root@alpha ~]# ...
0
votes
1answer
85 views

Server not pinging even after setting gateway and ip

I am configuring an Icinga monitoring server. I am entirely new to Linux, so configuring after googling each and every bit. I have configured ip address, subnet mask and default gateway correctly. ...
0
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0answers
29 views

Very strange ping times [duplicate]

Since yesterday I get very strange ping times. Please have a look: root@serverek:~# ping onet.pl PING onet.pl (213.180.141.140) 56(84) bytes of data. 64 bytes from sg1.any.onet.pl (213.180.141.140): ...
0
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0answers
34 views

Network setup issue with no connection between virtual machines

I have the following network setup: EDIT: NOTE: WARNING: In the above Windows1 should have the ip 192.168.137.1 The issue that i am having is that every machine can ping and connect to every other ...
1
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1answer
94 views

Did you see similar icmp ever? [closed]

ping ya.ru PING ya.ru (213.180.193.3) 56(84) bytes of data. 64 bytes from www.yandex.ru (213.180.193.3): icmp_req=1 ttl=60 time=97.6 ms 64 bytes from www.yandex.ru (213.180.193.3): icmp_req=2 ttl=60 ...
0
votes
1answer
126 views

Windows 2012 R2 Server network fails intermittently

I have 2 windows 2012 R2 servers in a production environment. Both are VM's and configured same with the ip address as different. I haven't recieved alert of any kind of network failure for one ...
4
votes
2answers
273 views

Why do tracert latencies not add up to ping latency?

One might expect the sum of the tracert latencies to equal 267ms:
0
votes
0answers
39 views

Which Log file to check for strange Ubuntu server behaviour (offline for 5minutes at random times)

I am having problems with my Ubuntu 10.04.4 LTS server. My monitor application claims it goes off every morning at about 4 AM for 5 to 10 minutes. I am not sure where to start the troubleshooting ...
1
vote
0answers
431 views

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 ...
1
vote
2answers
387 views

What IP addresses to use for monitor the availability of Internet connection?

I would like to check the availability of Internet connectivity by sending ICMP "echo request" messages to some IPv4 addresses. Those IPv4 addresses should be as reachable as possible in stability ...
1
vote
2answers
75 views

Windows XP VMs on ESXis not pinging each other

I'm running a virual environment of this sort. There's a UCS box that has several VMs. I've setup 3 Virtual ESXi VMs and vCenter Server appliance. Using the appliance, I installed 3 WinXP VMs on the ...
5
votes
2answers
117 views

Why nslookup doesn't use mdns while ping do?

In dnsmasq.conf: address=/local/127.0.0.1 In resolv.conf: # Generated by NetworkManager domain example.com search example.com nameserver 127.0.0.1 nameserver 10.66.127.17 nameserver 10.68.5.26 I ...
0
votes
2answers
84 views

packet loss between two specific VMs

I am experiencing some high-percentage packet loss (more than 70%) between two specific VMs in a local network, in a remote cluster (I have no physical access to it). One machine is used as a hadoop ...
0
votes
1answer
24 views

How to find vds/hosting with the best ping that I can have?

I'm living in tajikistan, and I want to purchase vps/dedicated server or at least good hosting outside of my country. One of important thing I want is to have a GOOD ping. For example ping to ...
2
votes
1answer
192 views

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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votes
1answer
103 views

Bandwidth measurement using ping [closed]

How can I measure bandwidth using ping? I know I could use something like iperf on each end to do the measurement, but I can't do that because I don't have access to the remote system. Maybe if I ...
0
votes
0answers
44 views

Trace Route, Slow Pings, timeouts on after server restore

I am getting bad ping times on my server, especially for large data requests. The stored procedure on the server runs at 1 second, while calling it through my web applicaiton takes 23+ seconds. This ...
1
vote
3answers
215 views

DNS issue? I cannot ping FQDN, yet I can ping alias (CNAME)

I'm experencing weird DNS issue and I was wondering if someone has any ideas: # ping -c1 test.XXX.local ping: unknown host test.XXX.local # ping -c1 test PING test.XXX.local (10.52.223.41) 56(84) ...