freebsd foundation

Background:Because of a project, I have been using FreeBSD to program kernel modules for this period of time. Prior to a period of time for Linux under the driver module programming, Linux module programming is also familiar. Now suddenly transferred to FreeBSD, although both Linux and FreeBSD are Unix-like systems, in the implementation mechanism is still very

FreeBSD Execution System command FreeBSD Execution System command function Do_command ($commandName, $args) { $buffer = ""; if (false = = = ($command = Find_command ($commandName))) return false; if ($fp = @popen ("$command $args", ' R ')) { while (! @feof ($FP)) { $buffer. = @fgets ($fp, 4096); } Return trim ($buffer); } return false; } Determining the execution file loca

= AxelFetch_before_args =-N 10-Fetch_after_args =Disable_size = YesMaster_site_backup? = \Ftp://ftp.tw.freebsd.org/pub/freebsd/distfiles/##dist_subdir }/\Ftp://ftp.cn.freebsd.org/pub/freebsd/distfiles/##dist_subdir }/\Ftp://ftp.freebsd.org/pub/freebsd/distfiles/##dist_subdir }/Master_site_override? =$ {Master_site_backup}4. Install linux_base-f10Modify/etc/rc. c

The best way is, of course, official documents, but there are actually some books that are worth recommending in addition to official documents.Operating system principle:The design and implementation of the FreeBSD operating System.chmThe design and implementation of the 4.4BSD operating System.chmSystem Management and configuration:Absolute.BSD.The.Ultimate.Guide.to.FreeBSD.pdfAbsolute.freebsd.the.complete.guide.to.freebsd.2nd.edition.pdfThe Complet

In the FreeBSD system, the switching device is very important, and it needs to leave enough swap space for the FreeBSD. When the system load is very large, the lack of swap space can also affect the system's execution process. You should usually set the system swap space to 1-2.5 times times the physical memory. Because swap space is used as a virtual memory and exchange data with physical memory, it should

FreeBSD is a multi-user operating system, so there may be multiple users issuing print requests at the same time, and if each request accesses the printer directly, there is a certain conflict problem. To enable the printer to serve all users, FreeBSD uses a pseudo offline print service. In this way, each print user using FreeBSD does not directly access the prin

In the computer World, UNIX has always been a high-end platform. A few years ago, it was only possible to access them in the specialized rooms of large institutions, and even smaller institutions could not afford to buy UNIX workstations. Only a few users have access to and use of UNIX, and fewer computer professionals can manage and maintain UNIX systems, leaving Unix with a veil of secrecy that, in front of ordinary users, is an unwieldy and expensive operating system. However, this has change

FreeBSD 5.1 supports installing VMware's 3.2.1-2237 version, but its latest version has been 3.2.1-2242, so there are some problems with the ports collection installation of the system, which will be addressed in this article. I've also tried to install VMware 4 in FreeBSD 5.1, but because FreeBSD 5.1 's Linux compatibility mode lacks a lsmod simulation under/co

FreeBSD is a UNIX operating system that can be executed on a computer with an Intel compliant, DEC Alpha, or PC98 architecture. Because FreeBSD is a branch of UNIX, it has the characteristics of UNIX and can do the work that UNIX can do. At the same time, FreeBSD is also a set of free operating system, it can make our personal computer become advanced workstation

FreeBSD setusercontext () function bypass security restriction Vulnerability Release date: 2010-08-18Updated on: 2010-08-19 Affected Systems:FreeBSD 8.0FreeBSD 7.2Description:--------------------------------------------------------------------------------Bugtraq id: 42533 FreeBSD is an open-source Unix system that runs on the Intel Platform and can be freely used. The setusercontext () function in the lib/l

Release date: 2010-09-08Updated on: 2010-09-09 Affected Systems:FreeBSD 7.2FreeBSD 7.1FreeBSD 7.0Description:--------------------------------------------------------------------------------Bugtraq id: 43060 FreeBSD is an open-source Unix system that runs on the Intel Platform and can be freely used. From FreeBSD 5.0 onwards, the system supports POSIX extension attributes and allows the storage of file-re

It is not freebsd, It is freenas7.2. Due to a problem with freenas installed for a friend, I studied how to operate raid1 in freebsd command mode yesterday and the night before. I should say how to configure freenas. In fact, freebsd manual says: Http://www.freebsd.org/doc/zh_CN.GB2312/books/handbook/geom-mirror.html The operation is as follows:Gmirror label

at ease.After the network problem is fixed, we will upgrade and compile the kernel with the system. First, we will upgrade the system.System upgrade (src and ports)To upgrade the system, we must use a software: cvsup, which can be installed on a CD (in the second CD) to save time.# SysinstallSelect Configure to enter[Packages]-> [CD/DVD]-> [devel]Select the [X] cvsup-without-gui-16.1h_2Select OK and return to the previous page. Select Install. Wait until the installation is complete.After CVSUP

. After CVSUP is installed, cvsup is installed in/usr/local/bin by default. # Rehash After the cvsup is installed, we can upgrade the src and ports directories of our system. # Cd/usr/share/examples/cvsup # Ls Cvs-supfile # upgrade CVSUP's own Doc-supfile # Operating System document upgrade file Gnats-supfile # FreeBSD BUG database Ports-supfile # Ports upgrade file Stable-supfile # stable version

Top monitoring commands on FreeBSD use top monitoring tools to display processes whose CPU usage is the first few, and provide the real-time CPU activity syntax: top [-stime] [-dcount] [-q] [-h] [-nnumber] [-ffilename] [-ofield] [-Uusename... Use of top monitoring commands on FreeBSD The top monitoring tool displays the processes whose CPU usage is the first few, and provides real-time CPU activity. Synta

System: FreeBSD 4.1 Install the gd-1.8.3 and libpng,jpeg6b with Sysinstall. Make sure you have libgd.so.* and libpng.so.* under the Usr/local/lib. CD PATH_TO_PHP_SRC ./configure--with-mysql=/path_to_mysql --with-apache=/path_to_apache_src --with-gd=/usr/local, don't add lib here. --with-png-dir=usr/local Ibid. --enable-track-vars --enable-discard-path --disable-debug Then everything goes as usual. The West brother of the 3.4 is gd-1.7.0 do not know wh

closed port Accounting_enable= "YES": Enable system Audit function ifconfig_alc0= "inet 10.1.1.10/8" #可设置为 "DHCP" Get IP automatically ifconfig_alc0= "inet 10.1.1.11/32" #同一网络的多个地址, except for the first one, the remaining netmask are set to 255.255.255.255 ifconfig_alc0_alias0= "inet 172.16.10.10/16" #设置多个 IP Defaultrouter= "10.1.1.1": Default gateway Sshd_enable= "YES": Set random Start /etc/sysctl.conf Common parameters kern.ipc.somaxconn=32768: Number of

Zfs: failedwitherror6 under FreeBSD. Solution environment for zfs: failedwitherror6 in FreeBSD: re-compile the kernel, restart the kernel after installation, and display: zfs: failedwitherror6, followed by the mountroot prompt. This is a solution that rarely solves the zfs: failed with error 6 error in FreeBSD. Environment: After the kernel is re-compiled, the sy

machine ##### DNS Address Configuration################################ # Ee/etc/resolv. confNameserver 202.96.209.20.Nameserver 202.96.209.5 Nic control switch################################ Ifconfig fxp0 upIfconfig fxp0 down ###### Routing configuration################################ View routesNetstat-Rn Add a route (equivalent to configuring gateway)Route add default 192.168.8.1#192.168.8.1 is the gateway address If you want to modify the current route configuration, You need to delete i

[Switch] Provision of time synchronization and NTP service for FreeBSD system China National Time Service Center Time Server IP Address: 210.72.145.44 Http://www.cnfug.org/journal/archives/000038.html Original article of NTP at www.cnfug.org: Tonight If you ignore the computer time, there will be an error soon.This error is reflected in the time stamp of the email sending time, and in the posting time of your forum post. At least I have enc