That means that there isn't even a Layer-2 connection in place.
ARP (address resolution protocol) is working on its own address schema (the "MAC-addresses") and works below IP (=Layer 3).
When a IP-Host wants to contact another IP-Host on the same Ethernet segment this is how the communication is finally resolved: each host maintains a table (the so-called "ARP-cache", which the command arp lists) about which IP-address on the same segment relates to which MAC-address (=identifier for a certain network card) and uses this to contact the right host (more precisely: the correct IP-Interface of a certain host). For communication across segment boundaries there are bridges (or routers, switches, ...., which work the same in this regard), which are used as relays. Say, "hostA" (on segment A) wants to contact "hostB" (on segement B):
Hi, is there anyway i can view a remote linux desktop on my windows desktop?
i am aware that X11 can see 'certain screens'. For eg if i type 'xclock &' and i have a client running on my windows, i can see the clock.
If i am interested to see the entire desktop of my linux, how can i do it? (4 Replies)
hi,
what is the exact procedure to to set up printer on linux machine?The printer is a network hp 3050 printer configured on windows xp machine and i want to setup it on linux fc9 machine to print from it.is samba is compulsory for that?
please give the exact procedure to do the same? (1 Reply)
I basically want to login into different linux machines( on the same network) from a windows machine. I know i can use ssh <machine name>. But i want to automate this process. I dont want to enter the username and password. Is there any way to do it. Can i make some sort of a batch script for it. (4 Replies)
hi
Am trying to connect from Solaris 9 installed Sun server and having Tomcat 5.5.9 installed on top of it to Windows 2003 server with IIS installed for web application.
Scenarios am facing are
1. From Sun system am able to ping and telnet ip with port 80 of windows 2000 system which is... (2 Replies)
Hello,
I am very unfamiliar with linux/unix (don't even know the difference), but am trying to get some linux software to run on my Windows machine for my research. I have the makefiles for the software, and it is designed to be compiled in the PGI complier, which I also have. When i... (6 Replies)
I need a shell script to copy files frm a linux machine to a windows machine using SCP. The files keeps changing day-to-day. I have to copy the latest file to the windows machine frm the linux machine.
for example :In Linux, On July 20, the file name will be 20.txt and it should be copied to... (3 Replies)
Hello,
I need to create a shell script which will copy files - which are created on particular date and starting with particular name - to local windows XP machine.
Is this possible.?
Currently it is being done manually using winscp (1 Reply)
Discussion started by: NarayanaPrakash
1 Replies
LEARN ABOUT CENTOS
ocf_pacemaker_ping
OCF_PACEMAKER_PING(7) Pacemaker Configuration OCF_PACEMAKER_PING(7)NAME
ocf_pacemaker_ping - node connectivity
SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_name=string] [OCF_RESKEY_multiplier=integer]
[OCF_RESKEY_host_list=string] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string]
[OCF_RESKEY_failure_score=integer] [OCF_RESKEY_debug=string] ping [start | stop | reload | monitor | meta-data | validate-all]
DESCRIPTION
Every time the monitor action is run, this resource agent records (in the CIB) the current number of ping nodes the host can connect to. It
is essentially the same as pingd except that it uses the system ping tool to obtain the results.
SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/ping-]
PID file
OCF_RESKEY_dampen = integer [5s]
Dampening interval
The time to wait (dampening) further changes occur
OCF_RESKEY_name = string [pingd]
Attribute name
The name of the attributes to set. This is the name to be used in the constraints.
OCF_RESKEY_multiplier = integer []
Value multiplier
The number by which to multiply the number of connected ping nodes by
OCF_RESKEY_host_list = string []
Host list
The list of ping nodes to count.
OCF_RESKEY_attempts = integer [2]
no. of ping attempts
Number of ping attempts, per host, before declaring it dead
OCF_RESKEY_timeout = integer [2]
ping timeout in seconds
How long, in seconds, to wait before declaring a ping lost
OCF_RESKEY_options = string []
Extra Options
A catch all for any other options that need to be passed to ping.
OCF_RESKEY_failure_score = integer []
failure_score
Resource is failed if the score is less than failure_score. Default never fails.
OCF_RESKEY_debug = string [false]
Verbose logging
Enables to use default attrd_updater verbose logging on every call.
AUTHOR
Andrew Beekhof <andrew@beekhof.net>
Author.
Pacemaker Configuration 06/10/2014 OCF_PACEMAKER_PING(7)