ping blocking Post: 302531659

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

blocking domains

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

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...

3. UNIX for Advanced & Expert Users

ps blocking

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...

4. Programming

non blocking connect

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);...

5. UNIX for Dummies Questions & Answers

Blocking signals

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...

6. Red Hat

Blocking an IP address

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......

7. Shell Programming and Scripting

Animation Ping on Solaris Like Cisco Ping

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......

8. Shell Programming and Scripting

How to get reason for ping failure using perls Net::Ping->new("icmp");?

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();...

9. Programming

Which are blocking and non-blocking api's in sockets in C ?

among the below socket programming api's, please let me know which are blocking and non-blocking. socket accept bind listen write read close

10. Programming

Ping test sends mail when ping fails

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...

LEARN ABOUT REDHAT

arping

ARPING(8)						 System Manager's Manual: iputils						 ARPING(8)

NAME

       arping - send ARP REQUEST to a neighbour host

SYNOPSIS

       arping [ -AbDfhqUV]  [ -c count]  [ -w deadline]  [ -s source]  -I interface destination

DESCRIPTION

       Ping destination on device interface by ARP packets, using source address source.

OPTIONS

       -A     The same as -U, but ARP REPLY packets used instead of ARP REQUEST.

       -b     Send only MAC level broadcasts. Normally arping starts from sending broadcast, and switch to unicast after reply received.

       -c count
	      Stop  after  sending  count  ARP	REQUEST packets. With deadline option, arping waits for count ARP REPLY packets, until the timeout
	      expires.

       -D     Duplicate address detection mode (DAD). See RFC2131, 4.4.1.  Returns 0, if DAD succeeded i.e. no replies are received

       -f     Finish after the first reply confirming that target is alive.

       -I interface
	      Name of network device where to send ARP REQUEST packets. This option is required.

       -h     Print help page and exit.

       -q     Quiet output. Nothing is displayed.

       -s source
	      IP source address to use in ARP packets.	If this option is absent, source address is:

	      o In DAD mode (with option -D) set to 0.0.0.0.

	      o In Unsolicited ARP mode (with options -U or -A) set to destination.

	      o Otherwise, it is calculated from routing tables.

       -U     Unsolicited ARP mode to update neighbours' ARP caches.  No replies are expected.

       -V     Print version of the program and exit.

       -w deadline
	      Specify a timeout, in seconds, before arping exits regardless of how many packets have been sent or received. In	this  case  arping
	      does not stop after count packet are sent, it waits either for deadline expire or until count probes are answered.

SEE ALSO

       ping(8), clockdiff(8), tracepath(8).

AUTHOR

       arping was written by Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>.

SECURITY

       arping requires CAP_NET_RAWIO capability to be executed. It is not recommended to be used as set-uid root, because it allows user to modify
       ARP caches of neighbour hosts.

AVAILABILITY

       arping is part of iputils package and the latest versions are  available in source  form  for  anonymous  ftp  ftp://ftp.inr.ac.ru/ip-rout-
       ing/iputils-current.tar.gz.

iputils-020927							 27 September 2002							 ARPING(8)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

blocking domains

Discussion started by: tamemi

2. Shell Programming and Scripting

blocking script help

Discussion started by: learnbash

3. UNIX for Advanced & Expert Users

ps blocking

Discussion started by: steadyonabix

4. Programming

non blocking connect

Discussion started by: satish@123