06-17-2011
If you can get it, the arping utility is useful for telling between obnoxious firewalls and actual network problems. A client can't ignore ARP and still communicate over IP, afterall.
[edit] It of course only can send arp over a local subnet, though.
Some distributions of linux do block ping. Can your client ping you? If so it's not likely to be blocked since they're the same distro.
If your client is behind NAT you may not be able to directly ping it from the host.
This User Gave Thanks to Corona688 For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear All ,
Kindly note I have sun solaries 7 .
I want to block a domain who keep sending emails to my domain and users .
thanks (1 Reply)
Discussion started by: tamemi
1 Replies
2. Shell Programming and Scripting
sed -n '/robots.txt/!{s/\(\{1,\}\.*\.*\.*\).*\/\(.*\.txt\).*/\1 \2/p;}' myaapache.log
Above command will search all txt except robots.txt from apache logs and show like
94.136.63.119 idsuper.txt
174.121.67.233 fx29id1.txt
I want to block that ip address automatically, i need script... (1 Reply)
Discussion started by: learnbash
1 Replies
3. UNIX for Advanced & Expert Users
Hi Folks
I have been debugging a script that is called every thirty seconds. Basically it is doing a ps, well two actually, one to file (read by the getline below) and the other into a pipe. The one into the pipe is: -
V_SYSVPS=/usr/sysv/bin/ps
$V_SYSVPS -p$PIDLIST -o$PSARGS... (0 Replies)
Discussion started by: steadyonabix
0 Replies
4. Programming
OS : solaris 10 X86
I created stream socket, tries to connect to port 7 on the remote machine.
After doing the non blocking connect call I did select with time out value is 3 secs. I am always getting timed out though I am writing prior to select.
code:
x=fcntl(S,F_GETFL,0);... (1 Reply)
Discussion started by: satish@123
1 Replies
5. UNIX for Dummies Questions & Answers
I know how to add signal to a set. But what if I want to add 2 or 3 signals to the set.
I know I can use sigaddset (&set,SIGBUS)....but what if I want to add SIGBUS and SIGALRM at once. Do i have to do it like this..
sigaddset (&set,SIGBUS);
sigaddset (&set,SIGALRM);
Is there another way to... (0 Replies)
Discussion started by: joker40
0 Replies
6. Red Hat
Dear all,
I am new to this forum.I need some assistant from you people.
I have a server in which Linux 5 is installed and it is in the network. How i block any user to access my server.. Upto how many users i can block.. send me the procedure....
Thank you in advance...... (10 Replies)
Discussion started by: sudhansu
10 Replies
7. Shell Programming and Scripting
Hi,
I develop simple animation ping script on Solaris Platform. It is like Cisco ping.
Examples and source code are below.
bash-3.00$ gokcell 152.155.180.8 30
Sending 30 Ping Packets to 152.155.180.8
!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.
% 93.33 success... % 6.66 packet loss...... (1 Reply)
Discussion started by: gokcell
1 Replies
8. Shell Programming and Scripting
Hi
I am using perl to ping a list of nodes - with script below :
$p = Net::Ping->new("icmp");
if ($p->ping($host,1)){
print "$host is alive.\n";
}
else {
print "$host is unreacheable.\n";
}
$p->close();... (4 Replies)
Discussion started by: tavanagh
4 Replies
9. Programming
among the below socket programming api's, please let me know which are blocking and non-blocking.
socket
accept
bind
listen
write
read
close (2 Replies)
Discussion started by: VSSajjan
2 Replies
10. Programming
help with bash script!
im am working on this script to make sure my server will stay online, so i made this script..
HOSTS="192.168.138.155"
COUNT=4
pingtest(){
for myhost in "$@"
do
ping -c "$COUNT" "$myhost" &&return 1
done
return 0
}
if pingtest $HOSTS
#100% failed... (4 Replies)
Discussion started by: mort3924
4 Replies
LEARN ABOUT DEBIAN
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_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_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 04/17/2012 OCF_PACEMAKER_PING(7)