Sponsored Content
Full Discussion: TTL field???
Top Forums UNIX for Advanced & Expert Users TTL field??? Post 8405 by LivinFree on Thursday 11th of October 2001 02:32:55 AM
Old 10-11-2001
This can be used to help defeat OS guessing in tools like queso and nmap. It's one of the easiest changes you can make to mess with the results. I recall that there were a few such hints/hacks in Hacking Linux Exposed...

The best part, however, is that the 2.4.* series kernels are able to obfuscate the OS completely. Any nmap scan will report that you are whoever you choose to be - for example, you can make yourself appear to the casual scanner to be a MacOS 7.1 machine, or a HP LaserJet Printer!

Check out the netfilter man pages, and this link:
http://sourceforge.net/projects/ippersonality/

Happy obfuscating!
 

9 More Discussions You Might Find Interesting

1. IP Networking

TTL for IP addr from DNS through C code

Hi All, I know that getaddrinfo() return the multiple IP addresses (if present) for a hostname. But, I want to know how to get the TTL value for this list from DNS. I want to get this TTL value and cache this IP address list for that much time and then again go for DNS resolution if TTL expires. ... (2 Replies)
Discussion started by: softindia
2 Replies

2. Shell Programming and Scripting

Sort alpha on 1st field, numerical on 2nd field (sci notation)

I want to sort alphabetically on the first field and sort in descending numerical order on the 2nd field. With a normal "sort -r -n" it does this: abc ||| 5e-05 ||| bla abc ||| 3 ||| ble def ||| 1 ||| abc def ||| 0.2 ||| def As you can see it ignores the fact that 5e-05 is actually 0.00005... (1 Reply)
Discussion started by: FrancoisCN
1 Replies

3. Solaris

Set up TTL on process

Is there a way to setup the TTL (Time To Live) on a process. We have many ssh processes that seem to just stack up. These processes do not need a static connection all the time and it might cause problems on our servers. Does anybody know how to setup the TTL on a process? (10 Replies)
Discussion started by: jastanle84
10 Replies

4. Shell Programming and Scripting

awk, comma as field separator and text inside double quotes as a field.

Hi, all I need to get fields in a line that are separated by commas, some of the fields are enclosed with double quotes, and they are supposed to be treated as a single field even if there are commas inside the quotes. sample input: for this line, 5 fields are supposed to be extracted, they... (8 Replies)
Discussion started by: kevintse
8 Replies

5. Shell Programming and Scripting

AWK: Pattern match between 2 files, then compare a field in file1 as > or < field in file2

First, thanks for the help in previous posts... couldn't have gotten where I am now without it! So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following: If $1... (4 Replies)
Discussion started by: right_coaster
4 Replies

6. Linux

How do I format a Date field of a .CSV file with multiple commas in a string field?

I have a .CSV file (file.csv) whose data are all enclosed in double quotes. Sample format of the file is as below: column1,column2,column3,column4,column5,column6, column7, Column8, Column9, Column10 "12","B000QRIGJ4","4432","string with quotes, and with a comma, and colon: in... (3 Replies)
Discussion started by: dhruuv369
3 Replies

7. Shell Programming and Scripting

Command/script to match a field and print the next field of each line in a file.

Hello, I have a text file in the below format: Source Destination State Lag Status CQA02W2K12pl:D:\CAQA ... (10 Replies)
Discussion started by: pocodot
10 Replies

8. Shell Programming and Scripting

Display combination of 4 field uniqe record and along with concatenate 5th and 6th field.

Table ACN|NAME|CITY|CTY|NO1|NO2 115|AKKK|ASH|IND|10|15 115|AKKK|ASH|IND|20|20 115|AKKK|ASH|IND|30|35 115|AKKK|ASH|IND|30|35 112|ABC|FL|USA|15|15 112|ABC|FL|USA|25|20 112|ABC|FL|USA|25|45 i have written shell script using cut command and awk programming getting error correct it and add... (5 Replies)
Discussion started by: udhal
5 Replies

9. Shell Programming and Scripting

awk to adjust coordinates in field based on sequential numbers in another field

I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines. If $4 matches in each line then the first matching sequential $6 value is added to $2, unless the value is 1, then the original $2 is used (like in the case of line... (3 Replies)
Discussion started by: cmccabe
3 Replies
XSetPointerMapping(3X11)					     MIT X11R4						  XSetPointerMapping(3X11)

Name
       XSetPointerMapping, XGetPointerMapping - manipulate pointer settings

Syntax
       int XSetPointerMapping(display, map, nmap)
	  Display *display;
	  unsigned char map[];
	  int nmap;

       int XGetPointerMapping(display, map_return, nmap)
	  Display *display;
	  unsigned char map_return[];
	  int nmap;

Arguments
       display	 Specifies the connection to the X server.

       map	 Specifies the mapping list.

       map_return
		 Returns the mapping list.

       nmap	 Specifies the number of items in the mapping list.

Description
       The function sets the mapping of the pointer.  If it succeeds, the X server generates a event, and returns Element map[i] defines the logi-
       cal button number for the physical button i+1.  The length of the list must be the same as would return, or a error results.  A zero ele-
       ment disables a button, and elements are not restricted in value by the number of physical buttons.  However, no two elements can have the
       same nonzero value, or a error results.	If any of the buttons to be altered are logically in the down state, returns and the mapping is
       not changed.

       can generate a error.

       The function returns the current mapping of the pointer.  Pointer buttons are numbered starting from one.  returns the number of physical
       buttons actually on the pointer.  The nominal mapping for a pointer is map[i]=i+1.  The nmap argument specifies the length of the array
       where the pointer mapping is returned, and only the first nmap elements are returned in map_return.

Diagnostics
       Some numeric value falls outside the range of values accepted by the request.
		 Unless a specific range is specified for an argument, the full range defined by the argument's type is accepted. Any argument
		 defined as a set of alternatives can generate this error.

See Also
       XChangeKeyboardControl(3X11), XChangeKeyboardMapping(3X11)
       X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys

															  XSetPointerMapping(3X11)
All times are GMT -4. The time now is 05:09 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy