################################################# #
# Parsing table routing IIX #
# #
# Tri Budi – tribudi@hijaunet.com #
# $ readIIX.sh, v.1.1 2010/05/21 14:38 $ #
##################################################

NICE=/etc/nice.rsc

cidr=`find $NICE -exec grep ‘[0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*’ {} \;| sed ‘s/^[add list=nice address="]*//’|perl -pe ‘s/.$//’`

for i in $cidr
do
echo “$cidr” >> /etc/iix
done

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pf(4) Perubahan syntax NAT

Menggantikan aturan fungsi nat/rdr/binat dengan aturan fungsi match/filter, contohnya sebagai berikut

nat on $ext_if from 10/8 -> ($ext_if)

 rdr on $ext_if to ($ext_if) -> 1.2.3.4

Menjadi

   match out on $ext_if from 10/8 nat-to ($ext_if)
   match in on $ext_if to ($ext_if) rdr-to 1.2.3.4

dan…

   binat on $ext_if from $web_serv_int to any -> $web_serv_ext

menjadi…

   match on $ext_if from $web_serv_int to any binat-to $web_serv_ext

Semoga bermanfaat….

Upgrade Guide: 4.6 to 4.7

KERNPATH=/sys/arch/i386/conf
SERVER=ftp.openbsd.or.id
DIR='pub/OpenBSD/4.6/packages/i386'
HOSTNAME=`/bin/hostname -s`

# FTP & install dmassage
#-----------------------
get() {
ftplist="" # Set to null in case for second invocation
for item in $@ ; do
full_name=ftp://$SERVER/$DIR/$item
ftplist="$ftplist $full_name"
done

echo "About to get the following:"
echo "$ftplist"

ftp $ftplist
}
get dmassage*
pkg_add dmassage*

# End of process
#---------------

for i in {src,sys}.tar.gz; do
echo "Extract source kernel";
cd /home/
tar -zxf $i -C /usr/src
done

if ls $KERNPATH |grep 'GENERIC'; then
echo "Customize Kernel";
cd $KERNPATH;
dmassage -s GENERIC > $HOSTNAME
fi

echo "option BUFCACHEPERCENT=15" >> $KERNPATH/$HOSTNAME
echo "option MSGMNB=16384" >> $KERNPATH/$HOSTNAME
echo "option MSGMNI=60" >> $KERNPATH/$HOSTNAME
echo "option MSGSEG=4096" >> $KERNPATH/$HOSTNAME
echo "option MSGSSZ=64" >> $KERNPATH/$HOSTNAME
echo "option MSGTQL=1024" >> $KERNPATH/$HOSTNAME
echo "option MAXFILES=8192" >> $KERNPATH/$HOSTNAME

echo "Configuring new kernel" ;
cd $KERNPATH
config $HOSTNAME
cd ../compile/$HOSTNAME
make depend && make && make install
echo "Kernel install succesfully, system would be reboot";
reboot

# EOF

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Yg blom bener mohon direvisi !!!

Letak perbedaan ketemu setelah melakukan static route, problemnya bila kita gunakan mode Access Point di sisi Master dan Station di sisi Slave network yg diroute tadi tidak bisa tercapai, problem tsb dikarenakan layer 2 tidak sepenuhnya transparent bridge.

Berikut adalah contoh konfigurasi untuk transparent bridge Layer 2

Master : Access Point WDS

Slave : Station WDS

Problem Solved

Dengan menambahkan option pada squid.conf sebagai berikut :

acl PURGE method purge
http_access allow PURGE localhost
http_access deny PURGE

Option dalam konfigurasi tersebut detailnya adalah :
1. Membuat ACL PURGE
2. Hanya memperbolehkan methode purge dari local mesin

Cara penggunaan tool tersebut juga sangat mudah :
Misalkan mau menghapus konten “http://s1.wp.com/img/icons.gif” dari cache perintahnya adalah sbg berikut:


~ #squidinfo -m purge http://s1.wp.com/img/icons.gif
HTTP/1.0 200 OK
Server: squid/2.7.STABLE7
Date: Sat, 08 May 2010 13:15:45 GMT
Content-Length: 0
Expires: Sat, 08 May 2010 13:15:45 GMT
X-Cache: MISS from WeduzGibaz.Hijaunet.Com
X-Cache-Lookup: NONE from WeduzGibaz.Hijaunet.Com:8200
Connection: close

Lebih enak pake methode purging daripada ngumpulin conten HIT nya….