Mailbag

Deividson Luiz Okopnik and Howard Dyckoff · _________________________________________________

From: nick zientarski <nick81z@hotmail.com>
To: editor@linuxgazette.net
Subject: can u help....
Date: Mon, 14 Jul 2008 02:16:57 -0400

[root@linuxamd ~]# sasldblistusers2
listusers failed
[root@linuxamd ~]#
[root@linuxamd ~]# testsaslauthd -u joey -p ******
0: NO "authentication failed"

-- 
Joey Prestia
L. G. Mirror Coordinator
http://linuxamd.com
Main Site http://linuxgazette.net

C-M-s runs the command rmail-summary-by-regexp
as listed on the chart
C-h b describe-bindings

          Key translations:
          key             binding
          ---             -------

          C-x           Prefix Command

          C-x 8         iso-transl-ctl-x-8-map

          ^L
          Major Mode Bindings:
          key             binding
          ---             -------

          C-c           Prefix Command
          C-d           rmail-summary-delete-backward
          RET           rmail-summary-goto-msg
          C-o           rmail-summary-output
          ESC           Prefix Command
          SPC           rmail-summary-scroll-msg-up
          -             negative-argument
          .             rmail-summary-beginning-of-message
          /             rmail-summary-end-of-message
          0 .. 9                digit-argument
          <             rmail-summary-first-message
          >             rmail-summary-last-message
          ?             describe-mode
          Q             rmail-summary-wipe
          a             rmail-summary-add-label
          b             rmail-summary-bury
          c             rmail-summary-continue
          d             rmail-summary-delete-forward
          e             rmail-summary-edit-current-message
          f             rmail-summary-forward
          g             rmail-summary-get-new-mail
          h             rmail-summary
          i             rmail-summary-input
          j             rmail-summary-goto-msg
          k             rmail-summary-kill-label
          l             rmail-summary-by-labels
          m             rmail-summary-mail
          n             rmail-summary-next-msg
          o             rmail-summary-output-to-rmail-file
          p             rmail-summary-previous-msg
          q             rmail-summary-quit
          r             rmail-summary-reply
          s             rmail-summary-expunge-and-save
          t             rmail-summary-toggle-header
          u             rmail-summary-undelete
          w             rmail-summary-output-body
          ...

#define TCPOPT_WINDOW			3
#define TCPOPT_SACK			5
#define TCPOPT_TIMESTAMP 		8

-- 
* Ben Okopnik * Editor-in-Chief, Linux Gazette * http://LinuxGazette.NET *

-- 
Simon Lascelles 
Managing Director
REMS International

Email: simon.lascelles@rems.com <blocked::mailto:simon.lascelles@rems.com> 
Web Site: http://www.rems.com/ <http://www.rems.com/> 
Mobile: 07956 676112
Telephone: 01727 848800; 

> On Mon, Jun 23, 2008 at 11:52:44AM +0530, Amit k. Saha wrote:
>> Hello TAG,
>>
>> I have a text file from which I want to list only those lines which
>> contain either pattern1 or patern2 or both.
>>
>> How to do this with 'gre'p?
>>
>> Assume, file is 'patch', and 'string1' and 'string2' are the two patterns.
>>
>> The strings for me are: 'ha_example' and 'handler'- so I cannot
>> possibly write a regex for that.
>
> Over the years, I've developed a working practice that says "don't use
> grep for anything more than a simple/literal search." Remembering the
> bits that you have to escape vs. those you don't is way too much of a
> pain. Stick with 'egrep', and you don't have to remember all that stuff.
>
> ``
> egrep 'string1|string2' filepattern

-- 
Amit Kumar Saha
http://blogs.sun.com/amitsaha/
http://amitksaha.blogspot.com
Skype: amitkumarsaha

From: Jimmy O'Regan <joregan@gmail.com>
Date: 2008/7/3
Subject: Re: Playing With Sid : Apertium: Open source machine translation
To: Arky <rakesh_ambati@yahoo.com>

> Arky has sent you a link to a blog:
>
> Accept my kudos
>

> Blog: Playing With Sid
> Post: Apertium: Open source machine translation
> Link:
> http://playingwithsid.blogspot.com/2008/07/apertium-open-source-machine.html
>
> --
> Powered by Blogger
> http://www.blogger.com/
>

From: Rakesh 'arky' Ambati <rakesh_ambati@yahoo.com>
Date: 2008/7/11
Subject: Apertium-transfer-tool info request
To: joregan@gmail.com

> Also; the rules that a-t-t generates are for the 'transfer only' mode
> of apertium-transfer: this example uses the chunk mode - most language
> pairs, unless the languages are very closely related, would really
> be best served with chunk mode. Converting a-t-t to support this is on
> my todo list, and though doing it properly may take a while, I can
> probably get a crufty, hacked version together fairly quickly. With a
> couple of sed scripts and an extra run of GIZA++ etc., we can also
> generate rules for the interchunk module.

> The need for the bilingual dictionary seemed a little strange to me at
> first, but Mikel, Apertium's BDFL, explained that it really helps to
> reduce bad alignments. This probably means that a-t-t can't generate
> rules for things like the Polish to English 'coraz piêkniejsza' ->
> 'prettier and prettier', but I haven't checked that yet.

SL:   the<det><def><sp>   <adj><sint>  <n><sg>
TL:   el<det><def><f><sg> <n><f><sg>   <adj><f><sg>
Alignment: 1:1  2:3 3:2
Rstrictions (indexes refer to the TL part of the AT):
       w_2 = n.f.*  w_3 = adj.*,   

Fedora Core 8 with the latest updates, P4-M, 1GB RAM, 80GB HDD, split 
into the following partitions:

hda1 - primary, WinXP, NTFS
hda2 - extended
hda5 - logical, data disk, NTFS
hda6 - logical, RedHat 9, ext2
hda7 - logical, Fedora Core 8 /boot, ext2
hda8 - logical, Fedora Core 8 LVM volumes (5 of them mapped to /, /usr, 
/var, /home and /var/cache), lvm
hda9 - logical, data backups, NTFS
hda3 - primary, Service/Rescue DOS, FAT

%dd if=/dev/hda of=hda-mbr-full bs=512 count=1 # mbr including partitions
%dd if=/dev/hda of=hda-mbr-nopart bs=446 count=1 # no partition 
information, just the MBR
%dd if=/dev/hdaX of=hdaX-bootsect bs=512 count=1 # boot record of a 
particular partition

Date: Wed, 2 Jul 2008 20:41:13 -0700
From: Greg Robinson <grobinson@google.com>
To: editor@linuxgazette.net
Subject: Understanding threading in Python

!#/bin/bash
# Tested on GNU grep 2.5.1
grep -Ev ^\([[:space:]]*#\)\|\(^$\) $1

alias dense='grep -Ev ^\([[:space:]]*#\)\|\(^$\)'

'. ~/.bashrc'

From: Rafael Laboissiere <rafael@debian.org>
To: Karl-Heinz Herrmann <kh1@khherrmann.de>
Subject: Re: Bug in your img2ooimpress.pl script
Date: Tue, 24 Jun 2008 21:53:36 +0200
User-Agent: Mutt/1.5.17+20080114 (2008-01-14)

> thanks for the patch... actually I stumbled onto the problem myself
> after an upgrade of OODoc some time back and sent a correction to LG
> which got published as talkback for the article. That patch is there:
> http://linuxgazette.net/132/lg_talkback.html#talkback.02
> 
> but as #116 was before they introduced talkbacks the talkback is not
> actually linked in the original article so it doesn't help people
> much. As LG is mirrored in many places the original articles are not
> changed usually.  

> I hope -- apart from having to find and fix that bug -- that script
> was helpful   

> Please don't drop TAG from the CC list; we all get "paid" for our time
> by contributing our technical expertise to the Linux community, and that
> can't happen in a private email exchange.

>>    Here is my plan (funny enough I was about to start doing this in about 2
>>    hours and possibly spend the whole of tomorrow - Sunday - depending in
>>    what kind of a mess I may end up in):
>>
>>    1. Backup my entire current /boot partition (it is about 52MiB).
>>    2. Restore a month-old backup of this /boot partition to a safe' location
>>    (USB drive). As this backup is old apart from the new kernel version it
>>    won't contain anything wrong with the partition and my first task will be
>>    to compare the files, which may cause my partition not to boot (menu.lst
>>    etc) as well as the boot sector. I would expect to see changes and will
>>    ignore the ones caused by the kernel updates (like new versions of the
>>    vmlinuz- file).
>>    3. If I find such changes between the 'old' backup and the new one, which
>>    prevent me from booting up the new partition then I will reverse them and
>>    see if I can boot up.

>>    4. If there are NO changes I could find (the least favourable option for
>>    me as I will enter uncharted waters here!) then I would have no option,
>>    but to run grub-install /dev/sda while within FC8 Live CD to restore GRUB
>>    in the hope of getting GRUB to load. If I could then boot normally from
>>    the hard disk then I would compare what has been done (both in terms of
>>    files and the boot sector - bot on the /boot partition as well as the
>>    absolute on /dev/sda) and see if I can find any differences. If not, well
>>    ... it will remain a great mystery what really went wrong, sadly!
>>     

$ hash

hits	command
   1	/usr/bin/which
   2	/usr/local/bin/log4cpp-config
   1	/usr/bin/gnome-screensaver

-- 
Amit Kumar Saha
http://blogs.sun.com/amitsaha/
http://amitksaha.blogspot.com
Skype: amitkumarsaha

$ mkdir newVideo

[newVideo]$ mkdir 00black1001-1010 01title1011-1110 02video1111-1410 03credi1411-1510 04black1511-1520 05makeVideo originals 

blackScrn.ppm
titleScrn.ppm
image0001.ppm
image0002.ppm
image0003.ppm
crediScrn.ppm

    $ convert -size 640x480 blackScrn.ppm -resize 320x240 00blackScrn.ppm
    $ convert -size 640x480 titleScrn.ppm -resize 320x240 01titleScrn.ppm
    $ convert -size 640x480 image0001.ppm -resize 320x240 02image0001.ppm
    $ convert -size 640x480 image0002.ppm -resize 320x240 02image0002.ppm
    $ convert -size 640x480 image0003.ppm -resize 320x240 02image0003.ppm
    $ convert -size 640x480 crediScrn.ppm -resize 320x240 03crediScrn.ppm
    $ convert -size 640x480 blackScrn.ppm -resize 320x240 04blackScrn.ppm

    [newVideo]$ mv 00blackScrn.ppm 00black1001-1010/
    [newVideo]$ mv 01titleScrn.ppm 01title1011-1110/
    [newVideo]$ mv 02image000?.ppm 02video1111-1410/
    [newVideo]$ mv 03crediScrn.ppm 03credi1411-1510/
    [newVideo]$ mv 04blackScrn.ppm 04black1511-1520/

    [newVideo]$ mv *.ppm originals/

    #!/bin/bash
    ############################################################################
    #name: duplicateFile
    #date: 2008-06-20
    ############################################################################
    if [ $# -ne 4 ]
    then
       echo "Usage: `basename $0` begin_range end_range filename duplicate" 
       exit 1
    fi
    # $1 is beginning of range
    let num=$1
    # $2 is end of range
    while [ ${num} -le $2 ]
    do
        # $3 is filename
        # $4 is duplicate
        cp $3 $4${num}.ppm
        num=$(($num+1))
    done
    ############################################################################

    # set PATH so it includes user's private bin if it exists
    if [ -d ~/bin ] ; then
        PATH=~/bin:"${PATH}"
    fi

    [bin]$ chmod u+x duplicateFile

    [00black1001-1010]$ duplicateFile 1001 1010 00blackScrn.ppm frame

    [00black1001-1010]$ rm 00blackScrn.ppm

    [00black1001-1010]$ cd ../01<TAB>  (Use TAB completion.)
    [00black1001-1010]$ duplicateFile 1011 1110 01titleScrn.ppm frame
    [02video1111-1410]$ rm 01title.ppm 

    [01title1011-1110]$ cd ../02<TAB>  (Use TAB completion.)
    [02video1111-1410]$ duplicateFile 1111 1210 02image0001.ppm frame
    [02video1111-1410]$ duplicateFile 1211 1310 02image0002.ppm frame
    [02video1111-1410]$ duplicateFile 1311 1410 02image0003.ppm frame
    [02video1111-1410]$ rm 02image0*.ppm

    [03credi1411-1510]$ duplicateFile 1411 1510 03crediScrn.ppm frame
    [03credi1411-1510]$ rm 03crediScrn.ppm

    [04black1511-1520]$ /duplicateFile 1511 1520 04blackScrn.ppm frame
    [00black1001-1010]$ rm 04blackScrn.ppm

    #!/bin/bash
    ############################################################################
    #name: fade 
    #date: 2008-06-20
    ############################################################################
    if [ $# -ne 3 ]
    then
        echo "Usage: `basename $0` in|out filename fileNumber"
        exit 1
    fi

    if [ $1 = "in" ]
    then
    num=$3 
    count=1
    while [ $count -le 25 ]
    do
        fadein=$(($count*4))
        mogrify $2$num.ppm -modulate $fadein $2$num.ppm
        count=$(($count+1))
        num=$(($num+1))
    done
    fi

    if [ $1 = "out" ]
    then
    num=$3 
    count=1
    while [ $count -le 25 ]
    do
        fadeout=$(($count*4))
        mogrify $2$num.ppm -modulate $fadeout $2$num.ppm
        count=$(($count+1))
        num=$(($num-1))
    done
    fi
    ############################################################################

    [newVideo]$ cd ../01title1011-1110/
    [01title1011-1110]$ fade in frame 1011
    [01title1011-1110]$ fade out frame 1110
    [01title1011-1110]$ cd ../02video1111-1410/
    [02video1111-1410]$ fade in frame 1111
    [02video1111-1410]$ fade out frame 1210
    [02video1111-1410]$ fade in frame 1211
    [02video1111-1410]$ fade out frame 1310
    [02video1111-1410]$ fade in frame 1311
    [02video1111-1410]$ fade out frame 1410
    [02video1111-1410]$ cd ../03credi1411-1510/
    [03credi1411-1510]$ fade in frame 1411
    [03credi1411-1510]$ fade out frame 1510

    [newVideo]$ cp 00black1001-1010/*.ppm 05makeVideo/
    [newVideo]$ cp 01title1011-1110/*.ppm 05makeVideo/
    [newVideo]$ cp 02video1111-1410/*.ppm 05makeVideo/
    [newVideo]$ cp 03credi1411-1510/*.ppm 05makeVideo/
    [newVideo]$ cp 04black1511-1520/*.ppm 05makeVideo/

    [newVideo]$ ls 05makeVideo/ | wc -l
    520

    [newVideo]$ cd  05makeVideo/
    [05makeVideo]$ make_mpeg2encode_parfile frame*.ppm

   lines
      2. frame%4d  /* name of source files */
      7. 2         /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */
      8. 520       /* number of frames */
      9. 1         /* number of first frame */
     13. 1         /* ISO/IEC 11172-2 stream (0=MPEG-2, 1=MPEG-1)*/
     14. 0         /* 0:frame pictures, 1:field pictures */
     15. 320       /* horizontal_size */
     16. 240       /* vertical_size */
     17. 8         /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */
     18. 3         /* frame_rate_code 1=23.976, 2=24, 3=25, 4=29.97, 5=30 frames/sec. */

    [05makeVideo]$ mpeg2encode mpeg2encode.par video.mpg

    [05makeVideo]$ audacity your_sound_file.ogg

    [05makeVideo]$ ffmpeg -i sound.ogg -s 320x240 -i video.mpg finishedVideo.mpg

    [05makeVideo]$ ffplay finishedVideo.mpg

>>>import phm 		#Phoenix library
>>>p = phm.phm()	#Initialize a Phoenix "object"
>>>p.read_inputs()	#Read the digital inputs (all internally pulled up to HIGH when open)
15
>>>

>>>import phm
>>>p = phm.phm()
>>>p.write_outputs(1) 	#Set D0 HIGH to Energize the coil
>>>p.clr2rtime(0,3)	#Release the ball and measure time of fall (returns time in microseconds)
317345
>>>

search linuxmafia.com deirdre.org
nameserver 198.144.192.2
nameserver 198.144.192.4
nameserver 198.144.195.186

$  dig [nameserver IP or hostname] porttest.dns-oarc.net in txt

/dev/zero
dd
#!/bin/bash
# Created by Ben Okopnik on Wed Jul 16 18:04:33 EDT 2008

########    User settings     ############
MAXDIRS=5
MAXDEPTH=2
MAXFILES=10
MAXSIZE=1000
######## End of user settings ############

# How deep in the file system are we now?
TOP=`pwd|tr -cd '/'|wc -c`

populate() {
	cd $1
	curdir=$PWD

	files=$(($RANDOM*$MAXFILES/32767))
	for n in `seq $files`
	do
		f=`mktemp XXXXXX`
		size=$(($RANDOM*$MAXSIZE/32767))
		head -c $size /dev/urandom > $f
	done

	depth=`pwd|tr -cd '/'|wc -c`
	if [ $(($depth-$TOP)) -ge $MAXDEPTH ]
	then
		return
	fi

	unset dirlist
	dirs=$(($RANDOM*$MAXDIRS/32767))
	for n in `seq $dirs`
	do
		d=`mktemp -d XXXXXX`
		dirlist="$dirlist${dirlist:+ }$PWD/$d"
	done

	for dir in $dirlist
	do
		populate "$dir"
	done
}

populate $PWD

options_description
popt::options_description desc("Options for fspopulate");
desc.add_options()
    ("debug,d", popt::value<unsigned int>(&opt_debug)->default_value(0),
     "Set debug level of the code.")
    ("dirlevels,D", popt::value<unsigned int>(&opt_dirlevels)->default_value(16),
     "Set maximum number of directory levels.")
    ("help,h", "Show a short help message with explanations.")
    ("logfile,l", popt::value(&opt_logfile), "Log file for recording information.")
    ("maxfilesize", popt::value<unsigned int>(&opt_max_filesize)->default_value(INT_MAX/2),
     "Maximum size of created files.")
    ("maxnamelen", popt::value<unsigned short>(&opt_max_namelength)->default_value(100),
     "Maximum length of file and directory names.")
    ("numdirs", popt::value<unsigned int>(&opt_number_directories)->default_value(512),
     "Maximum number of created directories.")
    ("numfiles", popt::value<unsigned int>(&opt_number_files)->default_value(1024),
     "Maximum number of created files.")
    ("path,p", popt::value(&opt_path), "Path to directory that is to be populated.")
    ("quiet,q", popt::bool_switch(&opt_quiet), "Be quiet about the whole operation.")
;

--debug
-d
variables_map
store
notify
popt::store(popt::parse_command_line(argc, argv, desc), vm);
popt::notify(vm);

vm
// Check for help option.
if ( vm.count("help") > 0 ) {
    cout << desc << endl;
    return(rc);
}
// Extract debug level
if ( (vm.count("debug") > 0) or (vm.count("d") > 0) ) {
    opt_debug = vm["debug"].as<unsigned int>();
}

path
path
leaf()
newpath = arg_path / "foo" /
"bar"
/dev/random
/dev/urandom
/dev/urandom
/dev/random
lrand48()
init_gen_rand()
gen_rand32()
gen_rand64()
genrand_res53()
fill_array32()
fill_array64()
SFMT/SFMT.h
fill_array32()
fill_array64()
gen_randXX()
fill_arrayXX()
-DSSE2
/proc/cpuinfo
memalign()
MEXP
MEXP
SFMT-params.h
namespace fs = boost::filesystem;

void populate( fs::path path, unsigned int level ) {
    unsigned int i;
    unsigned int depth_level;
    string dirname;
    string fullpath;
    unsigned int nr_directories;
    unsigned int nr_files;
    unsigned int size;

    fullpath = path.root_directory() + path.relative_path().string();
    if ( opt_debug > 0 ) {
        cout << "DEBUG: Entering <" << fullpath.c_str() << ">" << endl;
    }
    if ( chdir( fullpath.c_str() ) != 0 ) {
        cerr << "ERROR: Cannot chdir into directory <" << fullpath.c_str()
             << "> (" << strerror(errno) << ")" << endl
             << "ERROR: Level " << level << endl;
        return;
    }

    // Keep track of directory depth level
    depth_level = level+1;

    // Create files in current directory
    nr_files = (gen_rand32() % opt_number_files)+1;
    for ( i=1; i<=nr_files; i++ ) {
        size = gen_rand32() % opt_max_filesize;
        if ( ! create_random_file( size, opt_max_namelength ) ) {
            cerr << "ERROR: Cannot create file (" << strerror(errno)
                 << "). Aborting." << endl;
            return;
        }
    }

    // Check for depth, we only create directories when not scratching the depth limit.
    if ( depth_level < opt_dirlevels ) {
        // Create random number of directories
        nr_directories = (gen_rand32() % opt_number_directories)+1;
        for ( i=1; i<=nr_directories; i++ ) {
            // Create name and directory
            dirname = create_random_string(opt_max_namelength);
            if ( mkdir( dirname.c_str(), S_IRWXU|S_IRWXG|S_IROTH|S_IXOTH ) != -1 ) {
                // Populate directory
                fs::path newpath = path / dirname;
                if ( opt_debug > 0 ) {
                    cout << "DEBUG: New path <"
                         << newpath.root_directory() + newpath.relative_path().string()
                         << ">" << endl;
                }
                populate( newpath, depth_level );
                // Change to upper directory again. This is important since populate() chdirs into
                // a deeper directory and we can't climb up again if we don't do a second chdir()
                // after the function returns.
                if ( chdir( fullpath.c_str() ) != 0 ) {
                    cerr << "ERROR: Cannot chdir into directory <"
                         << fullpath.c_str() << "> (" 
                         << strerror(errno) << ")" << endl;
                }
            }
            else {
                cerr << "ERROR: Cannot create directory (" << strerror(errno) 
                     << "). Aborting." << endl;
                return;
            }
        }
    }

    return;
}

Makefile
Makefile
CFLAGS
LDFLAGS
Makefile
fspopulate
cp /etc/sysconfig/network /etc/sysconfig/network.bak
ifcfg-eth0
ifcfg-eth1
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/ifcfg-eth0
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=08:00:27:4B:3B:06
ONBOOT=yes

DEVICE=eth0				
ONBOOT=yes				 
BOOTPROTO=static			 
IPADDR=192.168.0.17			
NETMASK=255.255.255.0			
NETWORK=192.168.0.0			
BROADCAST=192.168.0.255			

DEVICE=eth0
BOOPROTO=static
IPADDR=192.168.0.17
NETMASK=255.255.255.0

DEVICE=eth0
BOOTPROTO=dhcp

/etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.localdomain
GATEWAY=192.168.0.254

NETWORKING=yes
HOSTNAME=server1.example.com

/etc/resolv.conf
; generated by /sbin/dhclient-script
search example.com
nameserver 10.0.2.3

search example.com
nameserver 10.0.2.3
nameserver 216.239.32.10

nameserver 10.0.2.3

/etc/nsswitch.conf
c:\Windows\system32\drivers\etc\hosts
/etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1          localhost.localdomain localhost 
::1           	   localhost6.localdomain6 localhost6

64.236.91.24	 www.myspace.com 	myspace.com

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain localhost 
::1             localhost6.localdomain6 localhost6
192.168.0.17	station17.example.com
192.168.0.100	workbox.example.com workbox
192.168.0.110	nfsbox.example.com nfsbox
192.168.0.120	mail.example.com mail 

127.0.0.1          localhost.localdomain localhost 

127.0.0.1          localhost.localdomain localhost 
::1           	   localhost6.localdomain6 localhost6

/etc/sysctl.conf
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0 

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename
# Useful for debugging multi-threaded applications
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message, in bytes
kernel.msgmnb = 65536

# Controls the default maximum size of a message queue
kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes
kernel.shmmax = 4294967295

# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 268435456

/etc/sysctl.conf
[root@localhost ~]# sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 4294967295
kernel.shmall = 268435456
[root@localhost ~]# 

      print "Hi there, World"

      obexftp -b 00:21:08:nn:nn:nn -c E:\\Python -p hello.py

     PCBTADDR=00:21:08:nn:nn:nn
     port=4
     btsock = socket(AF_BT, SOCK_STREAM, BTPROTO_RFCOMM)
     target = (PCBTADDR, port)
     btsock.connect(target)

btsock
     running=1
     while running:
       e32.ao_sleep(0.1)
       e32.ao_yield()
       handle_redraw(())
       if keyboard.is_down(EScancodeLeftArrow):
         canvas.text((0,32),u"Left key pressed",fill=0xff0000)
         btsock.send('Left')

          :    # many more 

       if keyboard.is_down(EScancodeHash):
         canvas.text((0,48),u"Hash key pressed",fill=0xff0000)
         btsock.send('Hash')
         running=0

     server_sock=BluetoothSocket( RFCOMM )
     server_sock.bind(("",port))
     server_sock.listen(backlog)
     client_sock, client_info = server_sock.accept()

     running=1
     while running:
       data = client_sock.recv(10)
       if data=='Hash': running=0
       if data=='Left': os.system("xevent -r -10 0")

           :

     client_sock.close()
     server_sock.close()

     python remote_on_pc.py

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

Directives	Required / Optional	Expected Settings	Comment
DEVICE=	Required	ethX	You must have this entry specifying the Linux device name.
ONBOOT=	Optional	yes / no	Start the device on boot? This will default to yes.
BOOTPROTO=	Required	static / dhcp / none	Static hard set our IP, or do we want a dhcp assignment? "dhcp", "none" is the same as static.
IPADDR=	Optional	IP address of machine	The address we want if we are setting a static IP for the interface.
NETMASK=	Optional	Subnet mask	Required for static IPs. The subnet mask.
NETWORK=	Optional	Network address	Recommended for static IPs. The network that we are on.
BROADCAST=	Optional	Network broadcast address	Recommended for static IPs. The broadcast address.
HWADDR=	Optional	Device MAC address	The MAC address of our network card. Normally provided by the Anaconda installer at install time.
USERCTL=	Optional	yes / no	Allow normal non-administrative user to take down and bring up the device. Defaults to "no".
GATEWAY=	Optional	IP address of gateway	The network gateway IP address.

Directives	Required / Optional	Expected Settings	Comment
NETWORKING=	Required	yes / no	Enable networking.
HOSTNAME=	Required	Hostname	The machine hostname. It's a good practice to put the Fully Qualified Domain Name in here.
GATEWAY=	Recommended	IP address of gateway	The gateway out of our network.
NETWORKING_IPV6=	Optional	yes / no	Enable IPV6 networking capability.
NISDOMAIN=	Optional	NIS domain name	The name of our NIS domain, if we are connecting to one.
GATEWAYDEV=	Optional	ethX	Gateway device to use if we have more than one NIC.

Directives	Required / Optional	Expected Settings	Comment
search	Optional	Domain name	The search domain.
domain	Optional	Domain name	The domain the machine is on.
nameserver	Required	IP address of nameserver	One or more nameservers are required to perform name resolution.

Key on the Phone	Action on the PC
Select Key	Left mouse click
Left	Move mouse left by 10 pixel on PC screen
Right	Move mouse right by 10 pixel on PC screen
Up	Move mouse up by 10 pixel on PC screen
Down	Move mouse down by 10 pixel on PC screen
1	Enter key pressed
2	Middle mouse click
3	Right mouse click
4	Page Up
5	Text cursor up
6	Page Down
7	Text cursor left
8	Text cursor down
9	Text cursor right
Asterisk (*)	Tab key pressed
0	Escape key pressed
Hash (#)	Exit the program

August 2008 (#153):

Mailbag

This month's answers created by:

Still Searching

Reg:Postfix mail redirection

Getting started with Linux & OLPC

Our Mailbag

Averatec n40bers and sy0b3es

inquiry on tcpdump

[OT] Nagware from Google Translate

SMTP Auth Problem

Regular Expressions

What other existing RMAIL Emacs commands or techniques or mechanisms are useful for sorting out spam messages?...

kernel inquiry

Tool to populate a filesystem?

Multi-host install of FC6

Auto detect and mount SD Card

SCP Sensing Remote file presense

asking about MIB structure of SNMP agent running on various type of Solaris, HP-UX and Windows

is it possible to make CUPS daemons cooperate between themselves?

thanks for CUPS tips

Followup: US sanctions-compliant Linux

Searching for multiple strings/patterns with 'grep'

Mailbag 2

This month's answers created by:

Editor's Note

Cuneiform OCR source available for linux

Playing With Sid : Apertium: Open source machine translation

Apertium-transfer-tool info request

[Apertium-stuff] Apertium-transfer-tool info request

Talkback

Talkback:116/okopnik.html

Talkback:107/pai.html

Talkback:152/lg_tips.html

Talkback:152/oregan.html

Talkback:116/herrmann.html

Talkback:116/okopnik.html - success!

2-Cent Tips

2-cent Tip: Caching in the Shell

News Bytes

Contents:

News in General

Xandros Buys Rival Linspire

Red Hat Voted "Greenest" Operating System

Kernel 2.6.26 Released with New Virtualization Support, KDB

Conferences and Events

Distro News

openSUSE 11.0 goes GA

Gentoo 2008.0 Released

Elyssa Mint, Xfce Community Edition RC1 BETA 025 Released

Software and Product News

MindTouch Deki Wiki releases OSSw Enterprise Collaboration Platform

WINE 1.1.1 Released with Photoshop Improvements

Genuitec announces the general availability of Pulse 2.2

Skyway Builder CE now GA

New Canoo UltraLightClient for Faster Web Application Development

Making a Slideshow-type MPEG1 Video with GNU/Linux

Recent Developments in the Phoenix Project

Introduction

What is Phoenix?

The Interface

Using Phoenix

Graphical User Interface

Workshops

Ready for the Market!

Phoenix Live CD

Recent Developments

Future Direction and Challenges

Acknowledgements

Suggested Reading

DNS source port randomisation

Picking a Local, Caching, Recursive-Resolver Nameserver

Testing your nameserver's randomness of source port selection

Populating a Filesystem with Random Data

Why Random Data?

Using a Bash Script

Using C++

Program Options

Filenames and Paths

Twisting Randomness