Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: ping blocking
Special Forums IP Networking ping blocking Post 302531663 by programAngel on Friday 17th of June 2011 11:54:40 AM
Old 06-17-2011
Quote:
Originally Posted by Corona688
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.
thank you for your help.


well I did harp in host OS of the two guest virtual machine (the two scientific linux).

It seem that they are indeed detected.
Because I see their name.

Now since I want to learn the nmap and linux networking, can you guide me how can I find what block the ping in the scientif linux machine.

Since it is VM in my computer I have direct access to it.

What should I do to detect what is blocking the ping?
Is it the iptables or something else?
I am newbie to this issue so any help will be welcome.
 

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 (1 Reply)
Discussion started by: tamemi
1 Replies

2. Shell Programming and Scripting

blocking script help

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

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... (0 Replies)
Discussion started by: steadyonabix
0 Replies

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);... (1 Reply)
Discussion started by: satish@123
1 Replies

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... (0 Replies)
Discussion started by: joker40
0 Replies

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...... (10 Replies)
Discussion started by: sudhansu
10 Replies

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...... (1 Reply)
Discussion started by: gokcell
1 Replies

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();... (4 Replies)
Discussion started by: tavanagh
4 Replies

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 (2 Replies)
Discussion started by: VSSajjan
2 Replies

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... (4 Replies)
Discussion started by: mort3924
4 Replies

LEARN ABOUT DEBIAN

ctrlaltdel

CTRLALTDEL(8)						       System Administration						     CTRLALTDEL(8)

NAME

       ctrlaltdel - set the function of the Ctrl-Alt-Del combination

SYNOPSIS

       ctrlaltdel hard|soft

DESCRIPTION

       Based  on examination of the linux/kernel/sys.c code, it is clear that there are two supported functions that the Ctrl-Alt-Del sequence can
       perform: a hard reset, which immediately reboots the computer without calling sync(2) and without any other preparation; and a soft  reset,
       which sends the SIGINT (interrupt) signal to the init process (this is always the process with PID 1).  If this option is used, the init(8)
       program must support this feature.  Since there are now several init(8) programs in the Linux community, please consult	the  documentation
       for the version that you are currently using.

       ctrlaltdel is usually used in the /etc/rc.local file.

FILES

       /etc/rc.local

SEE ALSO

       simpleinit(8), init(8)

AUTHOR

       Peter Orbaek (poe@daimi.aau.dk)

AVAILABILITY

       The ctrlaltdel command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							   October 1993 						     CTRLALTDEL(8)
All times are GMT -4. The time now is 02:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy