Instalasi Bandwidth limiter dengan HTB di linux

Software Yang dibutuhkan :

• HTB Script
• kernel harus dukung HTB; kernel 2.4.20 ke atas

HTB Script dapat di download dari http://sourceforge.net/projects/htbinit/ .
HTB.INIT adalah suatu shell script yg berasal dari CBQ.INIT yang mempermudah pengaturan traffic control HTB-BASED di Linux. HTB ( Hierachical Token Bucket) adalah suatu disiplin antrian baru yang (mana) mencoba untuk memperbaiki kelemahan dari implementasi CBQ.
Installasinya mudah dengan hanya men-download file tersebut dan anda letakkan di file system init /etc/init.d/htb.init, perintah lengkapnya sebagai berikut :

shell> wget http://heanet.dl.sourceforge.net/sourceforge/htbinit/htb.init-v0.8.5 shell> cp htb.init-v0.8.5 /etc/init.d/htb.init shell> chmod 755 /etc/init.d/htb.init shell> mkdir /etc/sysconfig/htb shell> chown root:root -R /etc/sysconfig/htb

Kompile Kernel >bagian QOS and/or fair queueing

# QoS and/or fair queueing # CONFIG_NET_SCHED=y CONFIG_NET_SCH_CLK_JIFFIES=y # CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set # CONFIG_NET_SCH_CLK_CPU is not set CONFIG_NET_SCH_CBQ=m CONFIG_NET_SCH_HTB=m CONFIG_NET_SCH_HFSC=m CONFIG_NET_SCH_ATM=m CONFIG_NET_SCH_PRIO=m CONFIG_NET_SCH_RED=m CONFIG_NET_SCH_SFQ=m CONFIG_NET_SCH_TEQL=m CONFIG_NET_SCH_TBF=m CONFIG_NET_SCH_GRED=m CONFIG_NET_SCH_DSMARK=m CONFIG_NET_SCH_NETEM=m CONFIG_NET_SCH_INGRESS=m CONFIG_NET_QOS=y CONFIG_NET_ESTIMATOR=y CONFIG_NET_CLS=y CONFIG_NET_CLS_TCINDEX=m CONFIG_NET_CLS_ROUTE4=m CONFIG_NET_CLS_ROUTE=y CONFIG_NET_CLS_FW=m CONFIG_NET_CLS_U32=m CONFIG_CLS_U32_PERF=y CONFIG_NET_CLS_IND=y CONFIG_NET_CLS_RSVP=m CONFIG_NET_CLS_RSVP6=m # CONFIG_NET_CLS_ACT is not set CONFIG_NET_CLS_POLICE=y

shell> make menuconfig
shell> make
shell> make modules_install install
Konfigurasi HTB
make sure (pastikan anda) sudah membuat direktori /etc/sysconfig/htb (dijelaskan secara detail di section berikutnya) dan file exec htb di /etc/init.d/htb.init .Perhatikan gambar berikut :

Membuat file konfigurasi HTB
1 Konfigurasi file downlink (1:1)

shell>mkdir /etc/sysconfig/htb shell>touch /etc/sysconfig/htb/eth1 shell>touch /etc/sysconfig/htb/eth1-10.aa-dl shell>touch /etc/sysconfig/htb/eth1-20.andi-dl shell>touch /etc/sysconfig/htb/eth1-30.adi-dl shell>touch /etc/sysconfig/htb/eth1-40.masterpop3-dl

eth1	eth1-10.aa-dl	eth1-20.andi-dl	eth1-30.adi-dl	eth1-40.masterpop3-dl
R2Q=100	RATE=64Kbit QUANTUM=1500 LEAF=sfq RULE=10.10.10.2	RATE=64Kbit QUANTUM=1500 LEAF=sfq RULE=10.10.10.3	RATE=64Kbit QUANTUM=1500 LEAF=sfq RULE=10.10.10.4	RATE=64Kbit QUANTUM=1500 LEAF=sfq RULE=10.10.10.5

2 Konfigurasi file uplink (1:4)
shell>touch /etc/sysconfig/htb/eth0
shell>touch /etc/sysconfig/htb/eth0-10
shell>touch /etc/sysconfig/htb/eth0-10:20.aa-ul
shell>touch /etc/sysconfig/htb/eth0-10:30.andi-ul
shell>touch /etc/sysconfig/htb/eth0-10:40.adi-ul
shell>touch /etc/sysconfig/htb/eth0-10:50.masterpop3-ul

eth0	eth0-10	eth0-10:20.aa-ul	eth1-10:30.andi-ul	eth1-30.adi-ul	eth1-40.masterpop3-ul
R2Q=100	RATE=64Kbit QUANTUM=1500	RATE=16Kbit QUANTUM=1500 CEIL=64Kbit LEAF=sfq RULE=10.10.10.2,	RATE=16Kbit QUANTUM=1500 CEIL=64Kbit LEAF=sfq RULE=10.10.10.3,	RATE=16Kbit QUANTUM=1500 CEIL=64Kbit LEAF=sfq RULE=10.10.10.4,	RATE=16Kbit QUANTUM=1500 CEIL=64Kbit LEAF=sfq RULE=10.10.10.5,

catatan: untuk konfigurasi file uplink, jika :Linux BOX anda di setting sebagai Router, maka anda akan memerlukan penandaan (MARK), yg di set mangling di dalam firewall iptables.Contoh :

ip : 10.10.10.2 akan di MARK=2 maka :

/sbin/iptables -t mangle -A PREROUTING -i eth1 -s 10.10.10.2 -d ! 10.10.10.0/24 -j MARK --set-mark 0x2

dan di tulis di file konfig uplinknya :

#eth0-10:20.aa-ul RATE=16Kbit QUANTUM=1500 CEIL=64Kbit LEAF=sfq MARK=2