These tools often enhance the way systems are installed, configured, and maintained. Jails have been available since FreeBSD 4. Since system administration is a difficult task, many tools have been developed to make life easier for the administrator. X and continue to be enhanced in their usefulness, performance, reliability, and security. One of the tools which can be used to enhance the security of a FreeBSD system is jails.
Which of the available maps shall or shall not be used, and for which purposes they shall be used, is fully at the discretion of the client host’s system administrator. # cd /var/yp # make This updates all database files in /var/yp/`domainname`, with one exception: The file ypservers. To do so, use rcctl(8). Another useful tool for debugging your YP setup is ypmatch(1). Yp is no longer recommended. Otherwise, the YP client daemon will use network broadcasts to find YP servers for its domain. Passwd # pwd_mkdb -p /etc/master. If you have not set up any slave servers, just put the host name of the master server into /etc/yp/`domainname`. # ypcat passwd bob:*:5001:5000:Bob Nuggets:/home/bob:/usr/local/bin/zsh. The second part of configuring a YP client involves editing local configuration files such that certain YP maps get used by various system facilities. Acl(5) security feature of the YP server daemon. # rcctl enable portmap # rcctl start portmap Consider using either the securenet(5) or the ypserv. Db, listing all YP master and slave servers associated with the domain, is created directly from ypinit -m and modified exclusively by ypinit -u. Yp(8) to learn which YP maps require which source files. Enable and start the YP client daemon, ypbind(8). Completing the following steps will allow you to retrieve data from the YP server, but that data will not yet be used by the system: Like on the server, you must set the domain name and enable the portmapper: # echo “puffynet” > /etc/defaultdomain # domainname `cat /etc/defaultdomain` # rcctl enable portmap # rcctl start portmap It is recommended to provide a list of YP servers in the configuration file /etc/yp/`domainname`. # rcctl enable ypbind # rcctl start ypbind If all went well you should be able to query the YP server using ypcat(1) and see your passwd map returned. Passwd For details on selective inclusion and exclusion of user accounts, see passwd(5). The former practice of editing the template file /var/yp/Makefile. If you want to include all groups from the YP domain, append the default YP marker to the group file: # echo ‘+:*::’ >> /etc/group For details on selective group inclusion, see group(5). Not all servers serve all standard maps supported by the operating system, some servers serve additional non-standard maps, and you are by no means compelled to use all those maps. The YP server is not yet running. Finally, start the YP server daemon: # rcctl enable ypserv # rcctl start ypserv To test the new server, consider making it its own client, following the instructions in the first part of the next section. YP uses rpc(3) (remote procedure calls) to communicate with clients, so it is necessary to enable portmap(8). In case you accidentally delete it, run ypinit -u to recreate it from scratch. For a list of standard YP maps and their standard usage, see Makefile. Explicitly specifying the servers is both more robust and marginally less open to attack. Create the initial version of your YP maps using the commands # cd /var/yp # make Do not worry about error messages from yppush(8) right now. For the format of the individual configuration files, refer to passwd(5), group(5), hosts(5) and so on, and look at the examples in /etc. In case you don’t want the server to use its own maps, you can disable the client part after the test with the following commands: # rcctl stop ypbind # rcctl disable ypbind Remember that each time you change a file sourced by a YP map, you must regenerate your YP maps. Setting up a YP client Setting up a YP client involves two distinct parts. First, you must get the YP client daemon running, binding your client host to a YP server. Thus, they only help as long as potential attackers have neither physical access to the hardware of the network segments carrying your YP traffic nor root access to any host connected to those network segments. Create the source directory and populate it with the configuration files you need. But be aware that both of these only provide IP based access control. Changes to that file affect all domains initialized after the change, but do not affect domains initialized before the change, so this is error-prone either way: You both risk that the intended changes do not take effect, and you risk to forget about them and have them affect other domains later which they were never intended for. The most common use cases include: If you want to include all user accounts from the YP domain, append the default YP marker to the master password file and rebuild the password database: # echo ‘+:*::::::::’ >> /etc/master. To test whether inclusion actually works, use the id(1) utility.
PKG(8) FreeBSD System Manager's Manual PKG(8) NAME pkg, pkg-static — manipulate packages SYNOPSIS pkg [-v] [-d] [-l] [-N] [-j <jail name or id> | -c < chroot path> | -r <root directory>] [-C <configuration file>] [-R <repository configuration directory>] [-4 | -6] <command> <flags> pkg [–version] [–debug] [– list] [-N] [–jail .
To achieve greater flexibility in configurations we can have also custom systems based on variety of mATX (microATX) motherboards and cases. Most of this systems are produced as Barebone systems (pre-assembled OEM units), but similar systems can be easily assembled directly from part.
The only one that became public was that BSDi would migrate their source base to the newer 4. 0, which was released on November 1994, was the first version of FreeBSD without any code from AT&T. The lawsuit was settled out of court and the exact terms were not all disclosed. AT&T filed a lawsuit against BSDi and alleged distribution of AT&T source code in violation of license agreements. Although not involved in the litigation, it was suggested to FreeBSD that they should also move to 4.  In January 1992, BSDi started to release BSD/386, later called BSD/OS, an operating system similar to FreeBSD and based on 1992’s BSD release. 386BSD and FreeBSD were both derived from 1992’s BSD release.
The main difference between bhyve and FreeBSD jails is that jails are an operating system-level virtualization and therefore limited to only FreeBSD guests; but bhyve is a type 2 hypervisor and is not limited to only FreeBSD guests. Bhyve allows a user to run a number of guest operating systems (FreeBSD, OpenBSD, Linux, and Microsoft Windows) simultaneously.  For comparison, bhyve is a similar technology to KVM whereas jails are closer to LXC containers or Solaris Zones. Other operating systems such as Illumos are planned. Bhyve was written by Neel Natu and Peter Grehan and was announced in the 2011 BSDCan conference for the first time. Bhyve, a new virtualization solution was introduced in FreeBSD 10.
We have to recreate such a route inside the chroot environment. Sudo pkg install bind99.
The main difference to the original FreeBSD is that they come with pre-installed and pre-configured software for specific use cases. This can be compared with Linux distributions, which are all binary compatible because they use the same kernel and also use the same basic tools, compilers and libraries, while coming with different applications, configurations and branding. All these distributions have no or only minor changes when compared with the original FreeBSD base system.
 All official documentation is released under the FreeBSD Documentation License, “a permissive non-copyleft free documentation license that is compatible with the GNU FDL”.  FreeBSD’s documentation is described as “high-quality”. FreeBSD’s documentation is translated into several languages. FreeBSD’s documentation consists of its handbooks, manual pages, mailing list archives, FAQs and a variety of articles, mainly maintained by The FreeBSD Documentation Project.
ESX don’t support IDE based disks as VM storage and virtual ide controller is only used for CD, so I think then main issue here will be then vCenter Converter will convert disk to SCSI type, but Chromium OS don’t have needed SCSI driver (drivers are reduced to get smaller and faster images). First issue (if I remember it correctly and is still valid for ESX4.
A collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users, a compact and practical reference.
Into the new root fs: chroot /tmp/zroot set -E *Create separate mountpoints for. Boot menu for FreeBSD 9. Off zroot/var/db/pkg zfs create -o compression=lzjb -o exec=on -o setuid=off zroot/var/db. Gpart create -s gpt ada0. Interrupt the FreeBSD boot loader by pressing the escape key.