Author: rdircio

get a vnc session forwarded

rdircio

This is basic ssh port forwarding, but i always forget…
so, you have hosta, hostb and yourpc.
you’re not in the same network as hostb, so you need to connect this way
yourpc –> hosta —> hostb
and you have a vnc session at hostb:1 (5901)
you want to connect to hosta:11 (5911) and get your vnc screen at hostb:1 (5901)
All you have to do is, from hosta
rdircio@hosta $ ssh -g -C hostb -L 5911:localhost:5901
then point the vnc client on yourpc to hosta:11.
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s9y comment spam protection

rdircio

I was been attacked by comment spam in this blog… this had me a bit down for a while.
Soon i found out there is an easy way to make comment spam difficult on serendipity(s9y) blog.
Go to “Configure Plugins” —> “Event Plugins” —-> “Spam Protector”
And you’ll solve all your problems 🙂
– rdircio
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Make a copy of your root disk on solaris 10

rdircio

if you need to make a copy of your boot disk, and you don’t have
disksuite, and you only have one slice as “/”, and this is solaris 10,
you can do:
#prtvtoc /dev/rdsk/c0t0d0s0 | fmthard -s – /dev/rdsk/c0t1d0s0
#newfs /dev/dsk/c0t1d0s 0
#mount /dev/dsk/c0t1d0s0 /a
#cd /
#find . -mount | cpio -pmdv /a
#installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk /dev/rdsk/c0t1d0s0
#vi /a/etc/vfstab
(change references from c0t0d0s0 to c1)
#mkdir /a/tmp
#mkdir /a/dev
#mkdir /a/proc
#touch /a/etc/mnttab
#mkdir /a/etc/svc/volatile
#mkdir /a/system/object
#mkdir /a/system/contract
#umount /a
#init 0
#boot otherdisk -r
And the system will boot fine from the other disk.
Remember it should be better to do this in single user mode, and with apps down.
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random wallpaper in gnome

rdircio

Say you want a random Gnome wallpaper from google each 60 seconds, but if your machine is not connected, just take
the backdrop from a local directory ~/Desktop/backdrops. you can put up a couple of scripts to do this, the main one
would be /scripts/changewall.ksh

#!/bin/bash
mkdir -p /tmp/wallpapers

E=`ps -ef | grep -i changewall | grep -i $USER | grep -iv grep | wc -l`
if [ $E -gt 2 ];then
    echo “wallpaper changer already running for $USER”
    exit 1
fi

i=120
while true;do
    i=`cat /scripts/time.txt`
    rm -fR /tmp/wallpapers/*
    RANGE=10
    number=$RANDOM
    let “number %= $RANGE”
    number=$(($number))
    ping -w 10 -c 2 www.google.com > /dev/null 2>&1
    R=$?
    if [ $R -eq 0 ]  && [ $number -lt 9 ];then
        /scripts/wallpaper.ksh > /dev/null 2>&1
        F=`ls /tmp/wallpapers`
        N=`echo $F | wc -c`
        if [ $N -gt 1 ];then
            gconftool-2 -t string -s /desktop/gnome/background/picture_filename “/tmp/wallpapers/$F”
#            cp “/tmp/wallpapers/$F” $HOME/Desktop/backdrops/
        else
            cd $HOME/Desktop/backdrops
                    ls -1 *.jpg | head -n`expr $RANDOM % `ls -1 *.jpg | wc -l“ | tail -n1 | echo `pwd`/`xargs` | gconftool-2 -t string -s /desktop/gnome/background/picture_filename “`xargs`”
        fi
    else
        cd $HOME/Desktop/backdrops    
        ls -1 *.jpg | head -n`expr $RANDOM % `ls -1 *.jpg | wc -l“ | tail -n1 | echo `pwd`/`xargs` | gconftool-2 -t string -s /desktop/gnome/background/picture_filename “`xargs`”
    fi
    sleep $i
done

Then you would need the support script, to get images from google according to a random word that comes
from /scripts/wallpaper-subjects.txt program: /scripts/wallpaper.ksh

#!/bin/ksh
cat /scripts/wallpaper-subjects.txt | head -n`expr $RANDOM % `cat /scripts/wallpaper-subjects.txt | wc -l“ | tail -n1 > /tmp/subject
QUERY=`cat /tmp/subject | sed ‘s/ /%20/g’`
RANGE=10
number=$RANDOM
let “number %= $RANGE”
number=$(($number + 1))
IMG=`curl -m 10 -A “Mozilla/3.0 (compatible; AvantGo 3.2)” “http://images.google.com/images?as_q=${QUERY}&as_filetype=jpg&biw=1680&bih=1024&safe=active&as_st=y&tbs=isch:1,itp:photo,islt:2mp,isz:l,ift:jpg” 2>/dev/null |sed -e ‘s/>/>n/g’ | awk ‘{s=substr($0,index($0,”http”),index($0,”jpg”));print substr(s,1,index(s,”.jpg”)+3)}’ | grep jpg |egrep -v ‘starkeith|gstatic|scaredmonkeys|tripod|flickr’|sed ‘s/2520/20/g’ | head -$number | tail -1`

mkdir -p /tmp/wallpapers
cd /tmp/wallpapers
wget –timeout=10 $IMG

you can add /scripts/changewall.ksh to your autostart stuff in gnome, going to system –> preferences –>
startup applications
ENJOY!

vlc http streaming from a TV card

rdircio 
I got a TV card, it appears like this in lspci:
 01:08.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast
 Decoder (rev d1)
 In order to stream 3 simultaneous streams, very low, low and high quality, you can do this:


 #!/bin/ksh
 #
 /sbin/modprobe saa7134-alsa
 sleep 2
 DEV=/dev/tvcard
 ps -ef | grep -i vlc | grep -v grep |grep -i $DEV | awk '{ print $2 }'| while read P;do
 kill -9 $P
 done
 VBR=96
 ABR=24
 W=320
 H=240
 ### --deinterlace-mode {discard,blend,mean,bob,linear} : deinterlacing mode (default: discard)
 # width=320,height=240 qpmax=40 x264{crf=5,profile=extended,level=1.0}
 # :standard{access=http{user=video,pwd=cable},mux=asf,dst=0.0.0.0:8088}
 #
 venc=x264{level=2,nr=1000,me=tesa,b-pyramid,bitrate=64,ref=4,b-adapt=2,bframes=2,partitions=all, keyint=2500}
 VLC="/usr/local/bin/cvlc --logo-file /disk2/logox.png v4l2://$DEV :input=2 :standard=8 :input-slave=alsa://hw:1
 ,0 --alsa-samplerate=32000 --deinterlace-mode linear --sout "
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 VERYLOW="transcode{vcodec=h264,acodec=mp4a,channels=1,width=160, height=120,vb=24,ab=16,venc=x264{bframes=0,leve
 l=5,nr=1000,b-pyramid,b-adapt=2, hurry-up},audio-sync,sfilter=logo}:standard{access=http,dst=0.0.0.0:8011/stream
 .flv}"
 LOW="transcode{vcodec=h264,acodec=mp4a,channels=1,width=${W},height=${H},vb=${VBR},ab=${ABR},venc=x264{bframes=
 0,level=5,nr=1000,b-pyramid,b-adapt=2},audio-sync,sfilter=logo}: standard{access=http,dst=0.0.0.0:8012/stream.fl
 v}"
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 HIGH="transcode{vcodec=h264,acodec=mp4a,channels=2,ab=128,venc=x 264{bframes=0,level=5,nr=1000,b-pyramid,b-adapt
 =2,hurry-up},deinterlace,audio-sync,sfilter=logo}:standard{access=http,dst=0.0.0.0:8013/stream.flv}"
 /usr/local/bin/v4l2-ctl -d $DEV --set-tuner=stereo
 /usr/local/bin/v4l2-ctl -d $DEV --set-standard=0
 /usr/local/bin/ivtv-tune -d $DEV -t us-cable -c3
 #--- audio codecs can be mpga or mp3 or m4a
 #--- mux can be ogg,ts,mp4,asf,ps,mpeg1,asfh, mpjpeg
 #--- low quality
 #$VLC "#$VERYLOW"
 #--- low quality
 #$VLC "#$LOW"
 #--- LAN quality
 #$VLC "#$HIGH"
 #---- single command, high quality AND low quality using h264_vdpau and x264 as encoder
 $VLC "#duplicate{dst="$VERYLOW",dst="$LOW",dst="$HIGH"}"
 #$VLC "#duplicate{dst="$VERYLOW",dst="$HIGH"}"
 #$VLC "#duplicate{dst="$LOW",dst="$HIGH"}"
 #$VLC "#duplicate{dst="$VERYLOW",dst="$LOW"}"
 

"#duplicate" is used in order to have 2 streams working simultaneously from the same input device, for each
 output srteam we use a "dst="

Quick and dirty script to query NIC speed

rdircio 
I already have a script like this in "miniexplorer", but it generates html and that may be overkill, so this is a quickie one to
 query all network card ports in your solaris server about NIC speed.
 
#!/bin/ksh
 ifconfig -a | grep flags | grep -v 'lo' |awk -F: '{ print $1 }' |uniq|while read IF;do
 D=`echo $IF| sed s/[0-9,:]*$//`
 IN=`echo $IF| sed 's/^[a-z]*//'`
 echo "$D $IN -------------------------------------------------"
 ndd -set /dev/$D instance $IN
 (ndd -get /dev/$D ?|awk '$1!~/^?/{print$1}'|while read p;do
 /usr/ucb/echo -n $p:;ndd -get /dev/$D $p;
 done
 kstat ${D}:${IN}) | egrep 'adv|link|speed' |sed 's/ //g'
 done

changing a label from EFI to SMI

rdircio

If your slice 2 is empty and you got partitions 0-9 in your disk when checkign it in “format”, you have an EFI label.
If you want to change it to a SMI label, you need to use “format -e” and when prompted for the label type,
choose SMI
partition> label
[0] SMI Label
[1] EFI Label
Specify Label type[1]: 0
Warning: This disk has an EFI label. Changing to SMI label will erase all
current partitions.
Continue? y
Auto configuration via format.dat[no]?
Auto configuration via generic SCSI-2[no]?
partition>
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