Hitchhiker's Guide to Openbsd

Other relevant files
http://www.openbsd.org/faq/faq10.html (17 of 32)9/4/2011 10:02:15 AM

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10 - System Management
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/etc/ftpwelcome - This holds the Welcome message for people once they have connected to your ftp 
server. 
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/etc/motd - This holds the message for people once they have successfully logged into your ftp 
server. 
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.message - This file can be placed in any directory. It will be shown once a user enters that 
directory. 
10.14 - Confining users to their home directories in ftpd(8)
By default, when logging in by ftp, users can change to any directory on the filesystem that they have 
access to. This may not be desirable in some cases. It is possible to restrict what users may see through ftp 
sessions by chrooting them to their home directory. 
If you only wish to allow chrooted ftp logins, use the -A option to 
ftpd(8)
. 
If you wish to apply them more finely, OpenBSD's 
login capability infrastructure
 and 
ftpd(8)
together 
make this easy. 
Users in a login class with the 
ftp-chroot
variable set are automatically chrooted. Additionally, you 
can add a username to the file /etc/ftpchroot to chroot those usernames. A user only needs to be listed in 
one of these locations. 
10.15 - Applying patches in OpenBSD
Even with OpenBSD, bugs happen. Some bugs may lead to reliability issues (i.e., something may cause 
the system to stop functioning as desired). Other bugs may lead to security vulnerabilities (which may 
allow others to "use" your computer in unintended and unauthorized ways). When a critical bug is found, 
the fix will be committed to the -current source tree, and patches will be released for the 
supported 
releases
of OpenBSD. These patches appear on the 
errata web page
, and are separated into "common" 
errata that impact all 
platforms
, and errata that impact only one or more, but not all, platforms. 
Note, however, that patches aren't released for new features or additional hardware support for OpenBSD, 
and are only published for important reliability fixes or security problems that should be addressed right 
away on impacted systems (which is often NOT all systems, depending on their purpose). 
There are three ways to update your system with patched code: 
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