Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: gethostbyname_r returns NULL when hostname has dash
Special Forums IP Networking gethostbyname_r returns NULL when hostname has dash Post 302202047 by uunniixx on Tuesday 3rd of June 2008 11:21:01 PM
Old 06-04-2008
I tried ways to dump tcp packets in windows and Unix but unfortunately unable to succeed cause I have a windows network login and ssh to unix development servers as developer.

Is there any other way I can do away with findings?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Solaris - unknown hostname - how can I change hostname?

Hello, I am new to Solaris. I am using stand alone Solaris 10.0 for test/study purpose and connecting to internet via an ADSL modem which has DHCP server. My Solaris is working on VMWare within winXP. My WinXP and Solaris connects to internet by the same ADSL modem via its DHCP at the same... (1 Reply)
Discussion started by: XNOR
1 Replies

2. Programming

PEM_read_RSAPublicKey returns NULL

Hi all, I am trying to write a program in C which will generate private and public keys using openssl RSA and use these for encryption and decryption. I am able to generate the keys successfully and write these to files. I am able to read the private key successfully. I can encrypt and decrypt... (1 Reply)
Discussion started by: Treasa
1 Replies

3. Shell Programming and Scripting

remove dash

hi I am using ksh #A="abc-def" #typeset -u B="$A" #echo $B ABC-DEF how to remove the dash? i.e. ABCDEF? thank you (1 Reply)
Discussion started by: melanie_pfefer
1 Replies

4. UNIX for Dummies Questions & Answers

echo statement when find returns null

Hi, How do you echo something once when a find statement returns null results? This is when using mutiple locations and mutiple arguments. The below find command the inner loop of a nested for loop where the outter loop holds the $args and the inner loop holds the locations. find... (2 Replies)
Discussion started by: tchoruma
2 Replies

5. Shell Programming and Scripting

awk returns null?

hi i try to check if awk returns null and i dont know how it's works this is the command set EndByC = `ls -l $base | awk '/.c$/ {print $9}'` if ($EndByC=="") then #check if ther is XXX.c directory echo Sorry ther is no XXX.c folder "in" $base path echo the XXX.c folder is necessary... (6 Replies)
Discussion started by: frenkelor
6 Replies

6. Shell Programming and Scripting

Insert string 'NULL' where there is a null value

I have an input file having 7 fields delimited by , eg : 1,ABC,hg,1,2,34,3 2,hj,YU,2,3,4, 3,JU,kl,4,5,7, 4,JK,KJ,3,56,4,5 The seventh field here in some lines is empty, whereas the other lines there is a value. How do I insert string NULL at this location (7th loc) for these lines where... (8 Replies)
Discussion started by: zilch
8 Replies

7. Emergency UNIX and Linux Support

HP UX - ILO Console hostname different than Machine Hostname...

Hi All, So we added a new HP-UX 11.31 machine. Copied OS via Ignite-UX (DVD)over from this machine called machine_a. It was supposed to be named machine_c. And it is when you log in...however when I'm in the ILO console before logging in, it says: It should say: What gives? And how do... (4 Replies)
Discussion started by: zixzix01
4 Replies

8. Red Hat

hostname command prints nothing a null value

Hi , On my box everything works fine. But whenever I run command It returns nothing as you see @(none) too. Its very strange issue I have never noticed on any other system yet. Any one have any idea about this. Thank you (2 Replies)
Discussion started by: pratapsingh
2 Replies

9. UNIX for Advanced & Expert Users

Hostname -f hostname: Unknown host

deleted (0 Replies)
Discussion started by: hce
0 Replies

10. Shell Programming and Scripting

A dash to GOTO or a dash from GOTO, that is the question...

Well, guys I saw a question about GOTO for Python. So this gave me the inspiration to attempt a GOTO function for 'dash', (bash and ksh too). Machine: MBP OSX 10.14.3, default bash terminal, calling '#!/usr/local/bin/dash'... This is purely a fun project to see if it is possible in PURE... (3 Replies)
Discussion started by: wisecracker
3 Replies

LEARN ABOUT SUSE

ss

SS(8)							      System Manager's Manual							     SS(8)

NAME

       ss - another utility to investigate sockets

SYNOPSIS

       ss [options] [ FILTER ]

DESCRIPTION

       ss  is  used  to  dump socket statistics. It allows showing information similar to netstat.  It can display more TCP and state informations
       than other tools.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       -h, --help
	      Show summary of options.

       -V, --version
	      Output version information.

       -n, --numeric
	      Do now try to resolve service names.

       -r, --resolve
	      Try to resolve numeric address/ports.

       -a, --all
	      Display all sockets.

       -l, --listening
	      Display listening sockets.

       -o, --options
	      Show timer information.

       -e, --extended
	      Show detailed socket information

       -m, --memory
	      Show socket memory usage.

       -p, --processes
	      Show process using socket.

       -i, --info
	      Show internal TCP information.

       -s, --summary
	      Print  summary  statistics. This option does not parse socket lists obtaining summary from various sources. It is useful when amount
	      of sockets is so huge that parsing /proc/net/tcp is painful.

       -4, --ipv4
	      Display only IP version 4 sockets (alias for -f inet).

       -6, --ipv6
	      Display only IP version 6 sockets (alias for -f inet6).

       -0, --packet
	      Display PACKET sockets.

       -t, --tcp
	      Display only TCP sockets.

       -u, --udp
	      Display only UDP sockets.

       -d, --dccp
	      Display only DCCP sockets.

       -w, --raw
	      Display only RAW sockets.

       -x, --unix
	      Display only Unix domain sockets.

       -f FAMILY, --family=FAMILY
	      Display sockets of type FAMILY.  Currently the following families are supported: unix, inet, inet6, link, netlink.

       -A QUERY, --query=QUERY
	      List of socket tables to dump, separated by commas. The following identifiers are  understood:  all,  inet,  tcp,  udp,  raw,  unix,
	      packet, netlink, unix_dgram, unix_stream, packet_raw, packet_dgram.

       -D FILE
	      Do not display anything, just dump raw information about TCP sockets to FILE after applying filters. If FILE is - stdout is used.

       -F FILE, --filter=FILE
	      Read filter information from FILE.  Each line of FILE is interpreted like single command line option. If FILE is - stdin is used.

       FILTER := [ state TCP-STATE ] [ EXPRESSION ]
	      Please take a look at the official documentation (Debian package iproute-doc) for details regarding filters.

USAGE EXAMPLES

       ss -t -a
	      Display all TCP sockets.

       ss -u -a
	      Display all UDP sockets.

       ss -o state established '( dport = :ssh or sport = :ssh )'
	      Display all established ssh connections.

       ss -x src /tmp/.X11-unix/*
	      Find all local processes connected to X server.

       ss -o state fin-wait-1 '( sport = :http or sport = :https )' dst 193.233.7/24
	      List all the tcp sockets in state FIN-WAIT-1 for our apache to network 193.233.7/24 and look at their timers.

SEE ALSO

       ip(8), /usr/share/doc/iproute-doc/ss.html (package iproutedoc)

AUTHOR

       ss was written by Alexey Kuznetosv, <kuznet@ms2.inr.ac.ru>.

       This manual page was written by Michael Prokop <mika@grml.org> for the Debian project (but may be used by others).

																	     SS(8)
All times are GMT -4. The time now is 08:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy