Skip to main content

FreeBSD - Custom Kernel

Our previous FreeBSD installation may lack of options like ALTQ for PF (Packet Filter). So we have to compile our kernel to a new kernel with some option enable. Prepare yourself..

• Make sure you are on i386 architecture machine
• Copy the original GENERIC kernel to a new one.
• Bare in mind, you are not allowed to make any changes to the original kernel. Since we will use that for our 'work in hand' kernel if anything goes wrong.

shell>cd /usr/src/sys/i386/conf
shell>cp GENERIC MYKERNEL

• Edit MYKERNEL using your prefered editor. Mine prefer nano :)

shell>nano MYKERNEL

• For this tutorial we will enable ALTQ for PF

#options for pf (packet filter) ALTQ
options ALTQ
options ALTQ_CBQ
options ALTQ_RED
options ALTQ_RIO
options ALTQ_HFSC
options ALTQ_PRIQ
options ALTQ_NOPCC

#pf (packet filter)
device pf
device pflog
device pfsync


• Save and let's build them up!

shell> cd /usr/src
shell>make buildkernel KERNCONF=MYKERNEL

• Install the new kernel

shell>make installkernel KERNCONF=MYKERNEL

• When finished, the output will look like this :

--------------------------------------------------------------
>>> Kernel build for MYKERNEL completed on Tue Dec 29 20:18:53 MYT 2009
--------------------------------------------------------------

• Reboot your machine and make sure you are using the custom kernel

shell>uname -a
FreeBSD web.domain.com 7.2-RELEASE-p5 FreeBSD 7.2-RELEASE-p5 #0: Tue Dec 29 20:10:31 MYT 2009 root@web.domain.com:/usr/obj/usr/src/sys/MYKERNEL i386
Labels:

Comments

Post a Comment

Popular posts from this blog

Warning Nuffnanger's!

Dear Nuffnangers, As you might already know, there are 2 different types of campaigns from Nuffnang: Metered (mCPM) Campaigns , which pay according to the number of visitors who see the ads; and Cost-Per-Click (CPC) campaigns, which pay bloggers based on the number of clicks generated on the ads. It has come to our attention that certain groups have been committing click fraud, which is defined as clicking on CPC advertisements intentionally just to generate earnings for a blog's owner. Do note that this act is an abuse of our Terms & Conditions under Section 6. Banner ads are only supposed to be clicked on if the viewer is interested to find out more about the advertising campaign, and not for the intention of earning extra money. Should this situation worsen, the frequency of ad campaigns might be significantly reduced as we'll only be able to sell ad spaces on blogs with no click fraud record. Our system is capable of tracking these illegal actions...
2 comments
Read more

Zenclouds October Promotion - Malaysia VPS Hosting

For those who are not familiar with what Zenclouds.com is , check this out : Zenclouds subsidiary of Art In Software Sdn Bhd is an industry-leading, privately virtual private server hosting and software services provider with headquarters in Malaysia. Since 2003, the company has provided businesses worldwide with reliable, high-capacity networks to host websites, email, business applications, video and other modern, rich-media content. Zenclouds evolve in one year of research and development mainly focus on Control Panel for managing virtual private server. Zenclouds integrate between Xen technologies and our own Control Panel to ease our customer managing multiple server with different Data Center with one control panel. Zenclouds integrates the industry's best technologies for each customer's specific need and delivers it as a service via the company's commitment and support. For this upcoming October you can win and own a brand new iPod Shuffle, Nano and Touch when y...
3 comments
Read more

MySQL Enterprise thingy

It's been a weird thing when you install MySQL server especially the one that is 'enterprise' version is not working with your PHP. That is the problem that my friend and I facing today. Since PHP require php-mysql extension to connect to MySQL server but php-mysql is only work with mysql-server from the Repos (Redhat/Centos). 1) Remove default mysql-server/php-mysql 2) Install MySQL Enterprise 3) Dependencies conflict occur + headache + install php-mysql shell> yum install php-mysql Loaded plugins: rhnplugin, security Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package php-mysql.x86_64 0:5.1.6-27.el5 set to be updated --> Processing Dependency: libmysqlclient.so.15(libmysqlclient_15)(64bit) for package: php-mysql --> Processing Dependency: libmysqlclient.so.15()(64bit) for package: php-mysql --> Running transaction check ---> Package mysql.x86_64 0:5.0.77-4.el5_4.2 set to be updated --> Process...
2 comments
Read more