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ruptime(1) [osf1 man page]

ruptime(1)						      General Commands Manual							ruptime(1)

NAME
ruptime - Displays the status of each host on a network SYNOPSIS
ruptime [-ar] [-l | -t | -u] ruptime [-ar] [-l | -t | -u] [machinename] The ruptime command displays the status of each host on a local network that is running the rwhod daemon. If machinename is specified, only the status of that machine is displayed. OPTIONS
Includes all users. Without this option, users whose sessions are idle an hour or more are not included. Sorts the list by the load aver- age over 5-, 10-, and 15-minute intervals prior to a server's transmission. The load averages are multiplied by 10 to represent the value in decimal format. Reverses the sort order. Sorts the list by the length of uptime. Sorts the list by the number of users. DESCRIPTION
The status lines are sorted by hostname unless the -l, -t, or -u option is indicated. The status information is provided in packets broad- cast once every 3 minutes by each network host running rwhod. Any activity (such as the power to a host being turned on or off) that takes place between broadcasts is not reflected until the next broadcast. Hosts for which no status information is received for 11 minutes are reported as down. EXAMPLES
To get a status report on the hosts on the local network, enter: $ ruptime Information similar to the following is displayed: host1 up 5:15, 4 users, load 0.09, 0.04, 0.04 host2 up 7:45, 3 users, load 0.08, 0.07, 0.04 host3 up 2:28, 0 users, load 0.01, 0.02, 0.03 host4 up 3+01:44, 1 user, load 0.01, 0.02, 0.03 host7 up 7:43, 1 user, load 0.06, 0.12, 0.11 (Output may be formatted differently on your system.) To get a status report sorted by load average, enter: $ ruptime -l Information similar to the following is displayed: host2 up 7:45, 3 users, load 0.08, 0.07, 0.04 host1 up 5:18, 4 users, load 0.07, 0.07, 0.04 host7 up 7:43, 1 user, load 0.06, 0.12, 0.11 host3 up 2:28, 0 users, load 0.01, 0.02, 0.03 host4 up 3+01:44, 1 user, load 0.01, 0.02, 0.03 (Output may be formatted differently on your system.) FILES
Indicates data files received from remote rwhod daemons. SEE ALSO
Commands: rwho(1), rwhod(8) ruptime(1)

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rwhod(1M)																 rwhod(1M)

NAME
rwhod - system status server SYNOPSIS
DESCRIPTION
is the server that maintains the database used by and (see rwho(1) and ruptime(1)). sends status information to and receives status infor- mation from other nodes on the local network that are running is started at system boot time if the RWHOD variable is set to 1 in the file As an information sender, it periodically queries the state of the system and constructs status messages that are broadcast on a network. As an information receiver, it listens for other servers' status messages, validates them, then records them in a collection of files located in the directory. By default, both sends and receives information. also supports the following options: Configures server to be an information sender only. Configures server to be an information receiver only. Status messages are generated approximately once every three minutes. transmits and receives messages at the port indicated in the service specification (see services(4)). The messages sent and received, are of the form: All fields are converted to network byte order before transmission. System load averages are calculated from the number of jobs in the run queue over the last 1-, 5- and 15-minute intervals. The host name included is the one returned by the system call (see gethostname(2)). The array at the end of the message contains information about the users logged in on the sending machine. This information includes the contents of the entry for each non-idle terminal line and a value indicating the time since a character was last received on the terminal line (see utmp(4)). discards received messages if they did originate at a server's port, or if the host's name, as specified in the message, contains any unprintable ASCII characters. Valid messages received by are placed in files named in the directory. These files contain only the most recent message in the format described above. WARNINGS
does not relay status information between networks. Users often incorrectly interpret the server dying as a machine going down. AUTHOR
was developed by the University of California, Berkeley. FILES
Information about other machines. SEE ALSO
rwho(1), ruptime(1), gethostname(2), services(4), utmp(4). rwhod(1M)

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