141 lines
6.7 KiB
Groff
141 lines
6.7 KiB
Groff
|
'\" t
|
||
|
|
.\" Title: upsd
|
||
|
|
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
|
||
|
|
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
|
||
|
|
.\" Date: 12/24/2010
|
||
|
|
.\" Manual: NUT Manual
|
||
|
|
.\" Source: Network UPS Tools
|
||
|
|
.\" Language: English
|
||
|
|
.\"
|
||
|
|
.TH "UPSD" "8" "12/24/2010" "Network UPS Tools" "NUT Manual"
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.\" * Define some portability stuff
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
.\" http://bugs.debian.org/507673
|
||
|
|
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
||
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
.ie \n(.g .ds Aq \(aq
|
||
|
|
.el .ds Aq '
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.\" * set default formatting
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.\" disable hyphenation
|
||
|
|
.nh
|
||
|
|
.\" disable justification (adjust text to left margin only)
|
||
|
|
.ad l
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.\" * MAIN CONTENT STARTS HERE *
|
||
|
|
.\" -----------------------------------------------------------------
|
||
|
|
.SH "NAME"
|
||
|
|
upsd \- UPS information server
|
||
|
|
.SH "SYNOPSIS"
|
||
|
|
.sp
|
||
|
|
\fBupsd\fR \-h
|
||
|
|
.sp
|
||
|
|
\fBupsd\fR [\fIOPTIONS\fR]
|
||
|
|
.SH "DESCRIPTION"
|
||
|
|
.sp
|
||
|
|
\fBupsd\fR is responsible for serving the data from the drivers to the clients\&. It connects to each driver and maintains a local cache of the current state\&. Queries from the clients are served from this cache, so delays are minimal\&.
|
||
|
|
.sp
|
||
|
|
It also conveys administrative messages from the clients back to the drivers, such as starting tests, or setting values\&.
|
||
|
|
.sp
|
||
|
|
Communication between \fBupsd\fR and clients is handled on a TCP port\&. Configuration details for this port are described in \fBupsd.conf\fR(8)\&.
|
||
|
|
.sp
|
||
|
|
This program is essential, and must be running at all times to actually make any use out of the drivers and clients\&.
|
||
|
|
.sp
|
||
|
|
Controls in the configuration files allow you to limit access to the server, but you should also use a firewall for extra protection\&. Client processes such as \fBupsmon\fR(8) trust \fBupsd\fR for status information about the UPS hardware, so keep it secure\&.
|
||
|
|
.SH "OPTIONS"
|
||
|
|
.PP
|
||
|
|
\fB\-c\fR \fIcommand\fR
|
||
|
|
.RS 4
|
||
|
|
Send
|
||
|
|
\fIcommand\fR
|
||
|
|
to the background process as a signal\&. Valid commands are:
|
||
|
|
.PP
|
||
|
|
\fBreload\fR
|
||
|
|
.RS 4
|
||
|
|
reread configuration files
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fBstop\fR
|
||
|
|
.RS 4
|
||
|
|
stop process and exit
|
||
|
|
.RE
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fB\-D\fR
|
||
|
|
.RS 4
|
||
|
|
Raise the debug level\&. Use this multiple times for additional details\&.
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fB\-h\fR
|
||
|
|
.RS 4
|
||
|
|
Display the help text\&.
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fB\-r\fR \fIdirectory\fR
|
||
|
|
.RS 4
|
||
|
|
upsd will
|
||
|
|
\fBchroot\fR(2) to
|
||
|
|
\fIdirectory\fR
|
||
|
|
shortly after startup and before parsing any configuration files with this option set\&. You can use this to create a "jail" for greater security\&.
|
||
|
|
.sp
|
||
|
|
You must coordinate this with your drivers, as upsd must be able to find the state path within
|
||
|
|
\fIdirectory\fR\&. See
|
||
|
|
\fBupsdrvctl\fR(8)
|
||
|
|
and
|
||
|
|
\fBnutupsdrv\fR(8)\&.
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fB\-u\fR \fIuser\fR
|
||
|
|
.RS 4
|
||
|
|
Switch to user
|
||
|
|
\fIuser\fR
|
||
|
|
after startup if started as root\&. This overrides whatever you may have compiled in with
|
||
|
|
configure \-\-with\-user\&.
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
\fB\-V\fR
|
||
|
|
.RS 4
|
||
|
|
Display the version of the program\&.
|
||
|
|
.RE
|
||
|
|
.SH "RELOADING"
|
||
|
|
.sp
|
||
|
|
upsd can reload its configuration files without shutting down the process if you send it a SIGHUP or start it again with \-c reload\&. This only works if the background process is able to read those files\&.
|
||
|
|
.sp
|
||
|
|
If you think that upsd can\(cqt reload, check your syslogs for error messages\&. If it\(cqs complaining about not being able to read the files, then you need to adjust your system to make it possible\&. Either change the permissions on the files, or run upsd as another user that will be able to read them\&.
|
||
|
|
.sp
|
||
|
|
DO NOT make your upsd\&.conf or upsd\&.users world\-readable, as those files hold important authentication information\&. In the wrong hands, it could be used by some evil person to spoof your master upsmon and command your systems to shut down\&.
|
||
|
|
.SH "DIAGNOSTICS"
|
||
|
|
.sp
|
||
|
|
upsd expects the drivers to either update their status regularly or at least answer periodic queries, called pings\&. If a driver doesn\(cqt answer, upsd will declare it "stale" and no more information will be provided to the clients\&.
|
||
|
|
.sp
|
||
|
|
If upsd complains about staleness when you start it, then either your driver or configuration files are probably broken\&. Be sure that the driver is actually running, and that the UPS definition in \fBups.conf\fR(5) is correct\&. Also make sure that you start your driver(s) before starting upsd\&.
|
||
|
|
.sp
|
||
|
|
Data can also be marked stale if the driver can no longer communicate with the UPS\&. In this case, the driver should also provide diagnostic information in the syslog\&. If this happens, check the serial or USB cabling, or inspect the network path in the case of a SNMP UPS\&.
|
||
|
|
.SH "ACCESS CONTROL"
|
||
|
|
.sp
|
||
|
|
If the server is build with tcp\-wrappers support enabled, it will check if the NUT username is allowed to connect from the client address through the /etc/hosts\&.allow and /etc/hosts\&.deny files\&. Note that this will only be done for commands that require to be logged into the server\&. Further details are described in \fBhosts_access\fR(5)\&.
|
||
|
|
.SH "FILES"
|
||
|
|
.sp
|
||
|
|
The general upsd configuration file is \fBupsd.conf\fR(5)\&. The administrative functions like SET and INSTCMD for users are defined and controlled in \fBupsd.users\fR(5)\&. UPS definitions are found in \fBups.conf\fR(5)\&.
|
||
|
|
.SH "ENVIRONMENT VARIABLES"
|
||
|
|
.sp
|
||
|
|
\fBNUT_CONFPATH\fR is the path name of the directory that contains upsd\&.conf and other configuration files\&. If this variable is not set, \fBupsd\fR uses a built\-in default, which is often /usr/local/ups/etc\&.
|
||
|
|
.sp
|
||
|
|
\fBNUT_STATEPATH\fR is the path name of the directory in which \fBupsd\fR keeps state information\&. If this variable is not set, \fBupsd\fR uses a built\-in default, which is often /var/state/ups\&. The \fBSTATEPATH\fR directive in \fBupsd.conf\fR(5) overrides this variable\&.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.SS "Clients:"
|
||
|
|
.sp
|
||
|
|
\fBupsc\fR(8), \fBupscmd\fR(8), \fBupsrw\fR(8), \fBupslog\fR(8), \fBupsmon\fR(8)
|
||
|
|
.SS "CGI programs:"
|
||
|
|
.sp
|
||
|
|
\fBupsset.cgi\fR(8), \fBupsstats.cgi\fR(8), \fBupsimage.cgi\fR(8)
|
||
|
|
.SS "Drivers:"
|
||
|
|
.sp
|
||
|
|
\fBnutupsdrv\fR(8), \fBapcsmart\fR(8), \fBbelkin\fR(8), \fBbelkinunv\fR(8), \fBbestuferrups\fR(8), \fBbestups\fR(8), \fBcyberpower\fR(8), \fBenergizerups\fR(8), \fBetapro\fR(8), \fBeverups\fR(8), \fBgenericups\fR(8), \fBisbmex\fR(8), \fBliebert\fR(8), \fBmasterguard\fR(8), \fBmge-shut\fR(8), \fBmge-utalk\fR(8), \fBoneac\fR(8), \fBpowercom\fR(8), \fBsafenet\fR(8), \fBsnmp-ups\fR(8), \fBtripplite\fR(8), \fBtripplitesu\fR(8), \fBvictronups\fR(8),
|
||
|
|
.SS "Internet resources:"
|
||
|
|
.sp
|
||
|
|
The NUT (Network UPS Tools) home page: http://www\&.networkupstools\&.org/
|