Mailbag

Deividson Luiz Okopnik and Howard Dyckoff · should

-- 
Kat Tanaka Okopnik
Linux Gazette Mailbag Editor
kat@linuxgazette.net

----------------------------------------
prog "screenshot" /usr/share/pixmaps/khelpcenter-16.xpm  scrot -s -q
100 -e 'feh $f'
------------------------------------------------

---------------------------------
# Super is the microsoft key at key board

key "Super+g" grun
key "Super+Power" gmrun
key "Super+s" /home/joy/call

----------------------------------

    KERNEL=="sda"
    SUBSYSTEM=="block"
    DRIVER==""
    ATTR{range}=="16"
    ATTR{removable}=="1"
    ATTR{size}=="15687680"
    ATTR{stat}=="      77      421     2292     1436        0
0        0        0        0      956     1436" ATTR{capability}=="13"

'/devices/pci0000:00/0000:00:10.3/usb4/4-5/4-5:1.0/host7/target7:0:0/7:0:0:0':
KERNELS=="7:0:0:0" SUBSYSTEMS=="scsi"
    DRIVERS=="sd"
    ATTRS{device_blocked}=="0"
    ATTRS{type}=="0"
    ATTRS{scsi_level}=="3"
    ATTRS{vendor}=="JetFlash"
    ATTRS{model}=="Transcend 8GB   "
    ATTRS{rev}=="8.07"

10-usb.rules
--------------------------------
SUBSYSTEM=="block", KERNEL=="sda", ATTRS{vendor}=="JetFlash",
ATTRS{model}=="Transcend 8GB   ", ACTION=="add", RUN+="mount -t
reiserfs /dev/sda2 /mnt/pen"
-------------------------------------

---------------------------------------
debian udevd[2874]: parse_file: reading
'/etc/udev/rules.d/10-usb.rules' as rules file
-----------------------------------------------

> Ben I have been experimenting.
> First off ;  I am quite familiar with cut and past in Windows.
> However this Linux webmail does not seem to allow me to open two  windows
> or emails simultaneously. Every time I try to write you a reply, the
> webmail vanishes as soon as  I open the second window.  When I try to
> backtrack by clicking the back arrow, the first window has vanished. There
> is no sign of the message I began in Drafts. Scrolling jumps me right out
> of webmail and I have to log back in again and start over.
> Apparently webmail is not designed to work like this. At least not on what
> my ISP uses.

/sbin/ifconfig

eth0  yada yada ....
       inet addrIP-Address>

netstat -tlpn

sudo aptitude install openssh-server

1) download putty, from here:
http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe
2) run the program
3) In the line where it says "Host name" enter the written down IP-Address
4) Either hit Enter or click "open" at the bottom of the window
5) a black window opens
6) if you get prompted for a user (login as enter your user name on 
the ubuntu box, hit enter and do the same with the password.

1) On the windows machine, in the webmail-thing: copy a line
2) bring the black putty window to the front and push the right mouse 
button in there. It should paste the copied stuff.

> 2009/3/31 Ben Okopnik <ben@linuxgazette.net>:
> > On Mon, Mar 30, 2009 at 11:12:46PM -0700, Rick Moen wrote:
> >
> > Thanks for saying that, Rick - I was just telling Kat much the same
> > thing while reading it. We'll preserve it, in standard LG fashion, for
> > the education of the young. 
> >
> 
> Is there enough time for it to figure on LG?
> 
> Thats so cool it should be turned into an article 

-- 
Chris.
======
I contend that we are both atheists. I just believe in one fewer god
than you do. When you understand why you dismiss all the other
possible gods, you will understand why I dismiss yours.
                                           -- Stephen F Roberts

python -m SimpleHTTPServer &

-- 
http://amitksaha.blogspot.com
http://amitsaha.in.googlepages.com/
*Bangalore Open Java Users Group*:http:www.bojug.in

"Recursion is the basic iteration mechanism in Scheme"
--- http://c2.com/cgi/wiki?TailRecursion

#!/bin/bash 
PROG=$(basename $0) 
VERSION="1" 
USAGE="A tiny example" 

# call process-getopt functions to define some options: 
source ./process-getopt 
SLOT_func()   { [ "$1" ] && SLOT="yes"; }      # callback for SLOT option 
add_opt SLOT "boolean option" s "" slot 
TOKEN_func()  { [ "$1" ] && TOKEN="$2"; }      # callback for TOKEN option 
add_opt TOKEN "this option takes a value" t n token number 
add_std_opts     # define the standard options --help etc: 

# The next 4 lines call the callbacks and remove the options from the command line:
TEMP=$(call_getopt "$@") || exit 1 
eval set -- "$TEMP" 
process_opts "$@" 
shift "$?"    # remove the options from the command line 

# The hard lifting is done - $@ just contains our arguments:
echo "SLOT=$SLOT" 
echo "TOKEN=$TOKEN" 
echo "args=$@" 

$ tiny --help 
Usage: tiny [-shVvq-] [--slot --help --version --verbose --quiet] [-t ,--token=] 

A tiny example 

Options: 
  -s, --slot                boolean option 
  -t n, --token=number      this option takes a value 
  -h, --help                print this help and exit 
  -V, --version             print version and exit 
  -v, --verbose             do it verbosely 
  -q, --quiet               do it quietly (negates -v) 
  --                        explicitly ends the options 

$ tiny -s --token="my token" arg1 arg2 
SLOT=yes 
TOKEN=my token 
args=arg1 arg2 

gs.tar       65003520 bytes  (original file)
gs.tar.lzma  12751330 bytes  (159.05s to compress, 1.48s to decompress)
gs.tar.xz    12768488 bytes  (155.17s to compress, 1.54s to decompress)
gs.tar.lz    12804165 bytes  (161.12s to compress, 1.97s to decompress)
gs.tar.bz2   16921504 bytes  ( 14.72s to compress, 3.45s to decompress)
gs.tar.gz    19336239 bytes  (  7.31s to compress, 0.63s to decompress)
gs.tar.Z     29467629 bytes  (  2.39s to compress, 0.78s to decompress)

http://www.7-zip.org/sdk.html  (for lzma_alone)
http://tukaani.org/xz/  (for xz and lzma)
http://www.nongnu.org/lzip/lzip.html  (for lzip)

gzip -c -d source.tar.gz | lzma_alone e -si source.tar.lzma
bzip2 -c -d source.tar.bz2 | lzma -c > source.tar.lzma
gzip -c -d source.tar.gz | xz -c > source.tar.xz
bzip2 -c -d source.tar.bz2 | lzip -c > source.tar.lz

lzma_alone d source.tar.lzma -so | tar -xvf -
tar --use-compress-program=lzma -xvf source.tar.lzma
tar --use-compress-program=xz -xvf source.tar.xz
tar --use-compress-program=lzip -xvf source.tar.lz

to-lzma -k *.tar.gz *.tar.bz2

[root@alien ~] ssh root@192.168.0.15
ssh_exchange_identification: Connection closed by remote host

[root@alien ~] ftp 192.168.0.15
Connected to 192.168.0.15.
421 Service not available.

strings -f <program_name> | grep hosts_access

[root@alien ~] strings -f /usr/sbin/* | grep hosts_access
/usr/sbin/in.tftpd: hosts_access
/usr/sbin/sshd: hosts_access
/usr/sbin/stunnel: hosts_access
/usr/sbin/stunnel: See hosts_access(5) manual for details
/usr/sbin/tcpd: hosts_access_verbose
/usr/sbin/vsftpd: hosts_access
/usr/sbin/xinetd: hosts_access

[root@alien ~] strings -f /sbin/* | grep hosts_access
/sbin/portmap: hosts_access_verbose

daemon_list : client_list  : shell_command 

daemon_list - This is a list of one or more daemon process names or wildcards

client_list - This is a list of one or more host names, host addresses, patterns or 
              wildcards that will be matched against the client host name or address.

#
# hosts.allow   This file describes the names of the hosts 
#               allowed to use the local INET services, as decided
#               by the '/usr/sbin/tcpd' server.
#
# My new rule below
sshd : 192.168.0.14 

#
# hosts.deny    This file describes the names of the hosts 
#               *not* allowed to use the local INET services, as decided
#               by the '/usr/sbin/tcpd' server.
#
# The portmap line is redundant, but is left to remind you that
# the new secure portmap uses hosts.deny and hosts.allow.  In particular,
# you should know that NFS uses portmap!
#
# My new rule below
ALL : ALL

Last login: Tue Apr  7 06:45:09 2009 from station14
[root@station15 ~]#	

[root@alien ~]# ssh 192.168.0.15
ssh_exchange_identification: Connection closed by remote host
[root@alien ~]#

sshd : .example.com
vsftpd : 192.168. 
ALL : 192.168.1.0/255.255.255
sshd : station1.example.com : allow
sshd : station15.example.com : deny
vsftpd : ALL EXCEPT *.hacker.org

vsftpd : station6.example.com \
: twist /bin/echo "Service suspended for abuse!"

vsftpd : .example.com  \
: spawn /bin/echo $(/bin/date) access granted to %h>>/var/log/ftp_access.log 

% EXPANSIONS

       The following expansions are available within shell commands:

       %a    The client host address

       %A    The server's host address

       %c    Client information: user@host, user@address,  a  host  name,  or just an address

       %d    The daemon process name

       %h    The client  host name or address, if the  host  name  is unavailable

       %H    The server host name or address, if the  host  name  is unavailable

       %n    The client host name (or "unknown" or "paranoid")

       %N    The server host name (or "unknown" or "paranoid")

       %p    The daemon process id

       %s    Server  information: daemon@host, daemon@address, or just a daemon name

       %u    The client user name (or "unknown")

       %%    Expands to a single "%" character.

       (Characters in % expansions that may confuse the shell are replaced by underscores)

May 2009 (#162):

Mailbag

This month's answers created by:

Editor's Note

Our Mailbag

Typing in Indian languages

configuration problem in icewm keys file

udev rules ca't auto mount my pen drive

Followup: linking my sound card to xoscpe

Talkback

Talkback:161/lg_gems.html

2-Cent Tips

2-cent Tip: 'Serve' your current directory

News Bytes

Contents:

News in General

Linux Foundation to Host Moblin Project

Linux Foundation Adds openSUSE Build Service To Linux Developer Network

Linux Foundation Announces "We're Linux" Contest Winner

LPI Revises LPIC-1 and LPIC-2 Linux Certification Exams

Kernel 2.6.29 released, 2.6.30 RC2 available

Trusted Computing Group Announces Certification Program

Oracle Buys Sun for Java and Solaris

Questions remain for OSSw Community

Conferences and Events

Distro News

Ubuntu 9.04: Server, Desktop, Netbook Remix

Ubuntu 9.04 Netbook Remix

Ubuntu 9.04 Desktop

Ubuntu Server 9.04

Novell Ships SUSE Linux Enterprise 11

Interoperability with Mono

Global Data Center Evolution Tour

Fedora 11 Preview available

SimplyMEPIS 8.0.06 Update Available

Software and Product News

Protecode Announces Release 2.0 of Its Software Intellectual Property Management Products

Sun Announces MySQL 5.4, MySQL Cluster 7.0

Command-Line Processing with 'process-getopt'

You know you oughta...

A solution

New Options in the World of File Compression

Joey's Notes: TCP Wrappers on Red Hat Enterprise Linux

Introduction

Description

Advantages

How TCP Wrappers Work

Implementing TCP Wrappers

Commands

Using Twist

Using Spawn

Conclusion

Resources

XKCD