Perhitungan antenna helical 2.4
Perhitungan Antenna Helical 2.4GHz
Oleh: Onno W. Purbo YC1DAV
Frekuensi 2.437 Ghz
Diameter Pipa (Dlambda) 0.042 meter
Diameter Ground Plane 0.130 meter
Slambda 0.035 meter
Panjang Gelombang (Lambda) 0.1231 meter
Clambda 0.1319 meter 1.0718 Lambda (hrs antara 0.75-1.33 Lambda)
G (Ground Plane Diameter) 0.1300 meter 1.0560 Lambda (hrs antara 0.8-1.1 Lambda)
Slambda 0.2653 Clambda (hrs antara 0.2126-0.2867 Clambda)
Lilitan Gain Beam L (m)
dBi (deg)
1 6.64 94.2 0.04
2 9.65 66.6 0.07
3 11.41 54.4 0.11
4 12.66 47.1 0.14
5 13.63 42.1 0.18
6 14.42 38.5 0.21
7 15.09 35.6 0.25
8 15.67 33.3 0.28
9 16.18 31.4 0.32
10 16.64 29.8 0.35
11 17.05 28.4 0.39
12 17.43 27.2 0.42
13 17.78 26.1 0.46
14 18.10 25.2 0.49
15 18.40 24.3 0.53
16 18.68 23.5 0.56
17 18.94 22.8 0.60
18 19.19 22.2 0.63
19 19.43 21.6 0.67
20 19.65 21.1 0.70
Matching impedance perlu di buat karena impedansi antenna helical 150 ohm, sedang coax 50 ohm.
Matching impedance dibuat dari panel / lempengan metal.
Rabu, 23 Januari 2008
mail server
Mail server
webmail server
#apt-get install apache2 tekan enter
#apt-get install php5-cgi
#apt-get install courier-imap pilih yes
#apt-get install squerrelmail
#cd /var/www
#ln -d -s /usr/share/squerrelmail
#L
#http://ip-server/squirrelmail/src/configtest.php
#vim /etc/courier/authdaemonrc
authmodulelist=”autpam” pada baris ke 27
#squerrelmail-configure
ada opsi 1–10
pilih : 2,A,8,courier,point 9,detect,s,q
Membuat Mail Directori
#maildirmake-courier /root/Maildir
#maildirmake-courier /home/user(nama dari user)/Maildir
#chown user:user -R(rekursif untuk semua direktori) /home/user/Maildir
Mengkonfigurasi Exim4
#dpkg-reconfigure exim4-config
akan ada pilihan dan pilih seperti dibawah ini
yes,ok,pilih atas,enter,enter,enter,enter,enter,no
menambah user
#useradd mailtest(nama user) -d /home/Mailtest
#passwd ailtest
#mkdir /home/mailtest
#chown mailtest:mailtest -R /home/mailtest
#maildirmake.courier /home/mailtest/Maildir
#chown mailtest:mailtest /home/mailtest/Maildir
untuk mencoba ke client buka browser ketik url no_ip_webserver/suqerrelmail
untuk menguninstal
#aptitude purge apache
#aptitude autoclean
#deselect (untuk mengetahui paket2 yg sudah atau belum terinstal)
webmail server
#apt-get install apache2 tekan enter
#apt-get install php5-cgi
#apt-get install courier-imap pilih yes
#apt-get install squerrelmail
#cd /var/www
#ln -d -s /usr/share/squerrelmail
#L
#http://ip-server/squirrelmail/src/configtest.php
#vim /etc/courier/authdaemonrc
authmodulelist=”autpam” pada baris ke 27
#squerrelmail-configure
ada opsi 1–10
pilih : 2,A,8,courier,point 9,detect,s,q
Membuat Mail Directori
#maildirmake-courier /root/Maildir
#maildirmake-courier /home/user(nama dari user)/Maildir
#chown user:user -R(rekursif untuk semua direktori) /home/user/Maildir
Mengkonfigurasi Exim4
#dpkg-reconfigure exim4-config
akan ada pilihan dan pilih seperti dibawah ini
yes,ok,pilih atas,enter,enter,enter,enter,enter,no
menambah user
#useradd mailtest(nama user) -d /home/Mailtest
#passwd ailtest
#mkdir /home/mailtest
#chown mailtest:mailtest -R /home/mailtest
#maildirmake.courier /home/mailtest/Maildir
#chown mailtest:mailtest /home/mailtest/Maildir
untuk mencoba ke client buka browser ketik url no_ip_webserver/suqerrelmail
untuk menguninstal
#aptitude purge apache
#aptitude autoclean
#deselect (untuk mengetahui paket2 yg sudah atau belum terinstal)
SAMBA SERVER
SAMBA SERVER
Langkah-langkah membuat SAMBA server :
MEMBUAT FILE SHARING DI WINDOWS
Samba Client Howto
Peralatan :
Komputer Client : 10.252.108.251[Linux Debian]
Komputer Server : 10.252.102.250[Windows XP]
Konfigurasi Komputer Server
1. Buat folder c:/temp di windows XP
2. Share folder c:/temp
Konfigurasi Komputer Client
1. Install package smbclient dan samba-common
# apt-get install smbclient
# apt-get install samba-common
2. Install package smbfs untuk mount windows share directly
# apt-get install smbfs
3. Testing smbclient untuk browse share directorysmbclient -L [KomputerServer]
# smbclient -L 10.252.102.250
# masukkan password : [password]
Contoh hasil ;
Sharename Type Comment
--------- ---- -------
IPC$ IPC Distant IPC
D$ Disk default ShareShareDocs Disk
islam Disk
temp Disk
ADMIN$ Disk Remote Admin
wwwroot$ Disk Used for file share access to
web projects
C$ Disk default Share
hpdeskje Printer hp deskjet 845c
Server Comment
--------- -------
Workgroup Master
--------- -------
4. Testing me-mount share directory
# cd /mnt
# mkdir tempclient
# mount -t smb //10.252.102.250/temp /mnt/tempclient
5. Cek Hasilnya
# cd /mnt
# ls -l
jika berhasil akan muncul file share directory //10.252.102.250/temp
Langkah-langkah membuat SAMBA server :
MEMBUAT FILE SHARING DI WINDOWS
Samba Client Howto
Peralatan :
Komputer Client : 10.252.108.251[Linux Debian]
Komputer Server : 10.252.102.250[Windows XP]
Konfigurasi Komputer Server
1. Buat folder c:/temp di windows XP
2. Share folder c:/temp
Konfigurasi Komputer Client
1. Install package smbclient dan samba-common
# apt-get install smbclient
# apt-get install samba-common
2. Install package smbfs untuk mount windows share directly
# apt-get install smbfs
3. Testing smbclient untuk browse share directorysmbclient -L [KomputerServer]
# smbclient -L 10.252.102.250
# masukkan password : [password]
Contoh hasil ;
Sharename Type Comment
--------- ---- -------
IPC$ IPC Distant IPC
D$ Disk default ShareShareDocs Disk
islam Disk
temp Disk
ADMIN$ Disk Remote Admin
wwwroot$ Disk Used for file share access to
web projects
C$ Disk default Share
hpdeskje Printer hp deskjet 845c
Server Comment
--------- -------
Workgroup Master
--------- -------
4. Testing me-mount share directory
# cd /mnt
# mkdir tempclient
# mount -t smb //10.252.102.250/temp /mnt/tempclient
5. Cek Hasilnya
# cd /mnt
# ls -l
jika berhasil akan muncul file share directory //10.252.102.250/temp
DHCP SERVER
DHCP server
Install dengan perintah Apt-get install dhcp3-server
Konfigurasi dengan perintah mcedit /etc/dhcp3/dhcpd.conf
Edit seperti di bawah ini
# A slightly different configuration for an internal subnet.
subnet 192.168.10.0 netmask 255.255.255.0 {
range 192.168.10.2 192.168.10.6;
option domain-name-servers tkj.com;
# option domain-name "internal.example.org";
option routers 192.168.10.1;
option broadcast-address 192.168.10.254;
default-lease-time 600;
max-lease-time 7200;
}
Ket: lainnya kasih tanda comment (#)
Install dengan perintah Apt-get install dhcp3-server
Konfigurasi dengan perintah mcedit /etc/dhcp3/dhcpd.conf
Edit seperti di bawah ini
# A slightly different configuration for an internal subnet.
subnet 192.168.10.0 netmask 255.255.255.0 {
range 192.168.10.2 192.168.10.6;
option domain-name-servers tkj.com;
# option domain-name "internal.example.org";
option routers 192.168.10.1;
option broadcast-address 192.168.10.254;
default-lease-time 600;
max-lease-time 7200;
}
Ket: lainnya kasih tanda comment (#)
FTP SERVER
FTP SERVERInstall
dg printah
#Apt-get install vsftpd
Trus konfigurasi dengan perintah mcedit /etc/vsftpd.conf
Edit perintah di bawah ini.
(hanya menghilangkan tanda comment/# aj)
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=YES
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.dirmessage_enable=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
# xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
# data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
# nopriv_user=ftpsecure
Setelah itu restart dengan perintah /etc/init.d/vsftpd restartkemudian cek pada client windows, masuk windows explorer trus ketikkan ftp: ip yang anda pakai
dg printah
#Apt-get install vsftpd
Trus konfigurasi dengan perintah mcedit /etc/vsftpd.conf
Edit perintah di bawah ini.
(hanya menghilangkan tanda comment/# aj)
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=YES
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.dirmessage_enable=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
# xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
# data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
# nopriv_user=ftpsecure
Setelah itu restart dengan perintah /etc/init.d/vsftpd restartkemudian cek pada client windows, masuk windows explorer trus ketikkan ftp: ip yang anda pakai
Jumat, 11 Januari 2008
membuat server dengan linux debian
FTP SERVER
Install dg printah
#Apt-get install vsftpd
Trus konfigurasi dengan perintah mcedit /etc/vsftpd.conf
Edit seperti di bawah ini/yang bergaris bawah
(hanya menghilangkan tanda comment/# aj)
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=YES
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
Ket : yang di perlu d edit hanya yang bergaris bawah J aj lainnya biarin aj
Setelah itu restart dengan perintah /etc/init.d/vsftpd restart
kemudian cek pada client windows, masuk windows explorer trus ketikkan ftp: ip yang anda pakai
DHCP server
DHCP SERVER
Install dengan perintah Apt-get install dhcp3-server
Konfigurasi dengan perintah mcedit /etc/dhcp3/dhcpd.conf
Edit seperti di bawah ini
# A slightly different configuration for an internal subnet.
subnet 192.168.10.0 netmask 255.255.255.0 {
range 192.168.10.2 192.168.10.6;
option domain-name-servers tkj.com;
# option domain-name "internal.example.org";
option routers 192.168.10.1;
option broadcast-address 192.168.10.254;
default-lease-time 600;
max-lease-time 7200;
}
Ket: lainnya kasih tanda comment (#)
DNS server
Pertama install dengan perintah
#Apt-get install bind9
Konfigurasi named.conf
dengan perintah mcedit /etc/bind/named.conf
Kemudian tambahkan
zone "tkj.com" { =====è tergantung nama server yang anda
type master; pakai
file "/var/cache/bind/db.tkj"; =è letak zone file
};
zone "192.in-addr.arpa" { =====è ip yang anda gunakan
type master;
file "/var/cache/bind/db.192";
};
Konfigurasi zone file
Buatlah file dengan perintah touch db.tkj atau anda copy dari /etc/bind/db.local
Kemudian edit file db.tkj
;
; BIND data file for local loopback interface
;
$TTL 604800
@ IN SOA tkj.com. root.tkj.com. (
1 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS tkj.com.
@ IN A 192.168.10.1
www IN A 192.168.10.1
Buatlah juga file db.192 dengan perintah touch db.192 atau anda copy dari /etc/bind/db.127
Kemudian edit file db.192
;
; BIND reverse data file for local loopback interface
;
$TTL 604800
@ IN SOA tkj.com. root.tkj.com. (
1 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS tkj.com.
1.10.168 IN PTR tkj.com.
1.10.168 IN PTR http://www.tkj.com/.
seting IP
File konfigurasi d debian terletak di /etc/network/interfaceEdit dengan perintah# mcedit /etc/network/interface atau#vi /etc/network/interface
Masukkan konfigurasi ip seperti berikutauto lo
iface lo inet loopbackallow-hotplug eth0
iface eth0 inet static
address 192.168.0.111 =====> ip yang akan anda gunakan
netmask 255.255.255.0 =====>netmask dari ip yg anda pakai
gateway 192.168.0.1 =====> gateway ip anda(biasanya ip paling awal)Untuk address dan netnask diisi dengan ip dan netmask jaringan anda.Setelah selesai simpan file tersebut dan kemudian restart jaringan# /etc/init.d/networking restartSelesai dech...
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