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SNMP for <SPANCLASS="emphasis"><ICLASS="EMPHASIS">eCos</I></SPAN></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="net-httpd.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="NET-SNMP-AGENT-MANPAGES-SNMPD.CONF">snmpd.conf</H1><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="SCREEN">SNMPD.CONF(5) SNMPD.CONF(5)NAME share/snmp/snmpd.conf - configuration file for the ucd- snmp SNMP agent.DESCRIPTION snmpd.conf is the configuration file which defines how the ucd-smnp SNMP agent operates. These files may contain any of the directives found in the DIRECTIVES section below. This file is not required for the agent to operate and report mib entries.PLEASE READ FIRST First, make sure you have read the snmp_config(5) manual page that describes how the ucd-snmp configuration files operate, where they are located and how they all work together.EXTENSIBLE-MIB The ucd-snmp SNMP agent reports much of its information through queries to the 1.3.6.1.4.1.2021 section of the mib tree. Every mib in this section has the following table entries in it. .1 -- index This is the table's index numbers for each of the DIRECTIVES listed below. .2 -- name The name of the given table entry. This should be unique, but is not required to be. .100 -- errorFlag This is a flag returning either the integer value 1 or 0 if an error is detected for this table entry. .101 -- errorMsg This is a DISPLAY-STRING describing any error trig- gering the errorFlag above. .102 -- errorFix If this entry is SNMPset to the integer value of 1 AND the errorFlag defined above is indeed a 1, a program or script will get executed with the table entry name from above as the argument. The program to be executed is configured in the config.h file at compile time. Directives proc NAME proc NAME MAX proc NAME MAX MIN Checks to see if the NAME'd processes are running on the agent's machine. An error flag (1) and a description message are then passed to the 1.3.6.1.4.1.2021.2.100 and 1.3.6.1.4.1.2021.2.101 mib tables (respectively) if the NAME'd program is not found in the process table as reported by "/bin/ps -e". If MAX and MIN are not specified, MAX is assumed to be infinity and MIN is assumed to be 1. If MAX is specified but MIN is not specified, MIN is assumed to be 0. procfix NAME PROG ARGS This registers a command that knows how to fix errors with the given process NAME. When 1.3.6.1.4.1.2021.2.102 for a given NAMEd program is set to the integer value of 1, this command will be called. It defaults to a compiled value set using the PROCFIXCMD definition in the config.h file. exec NAME PROG ARGS exec MIBNUM NAME PROG ARGS If MIBNUM is not specified, the agent executes the named PROG with arguments of ARGS and returns the exit status and the first line of the STDOUT output of the PROG program to queries of the 1.3.6.1.4.1.2021.8.100 and 1.3.6.1.4.1.2021.8.101 mib tables (respectively). All STDOUT output beyond the first line is silently truncated. If MIBNUM is specified, it acts as above but returns the exit status to MIBNUM.100.0 and the entire STDOUT output to the table MIBNUM.101 in a mib table. In this case, the MIBNUM.101 mib con- tains the entire STDOUT output, one mib table entry per line of output (ie, the first line is output as MIBNUM.101.1, the second at MIBNUM.101.2, etc...). Note: The MIBNUM must be specified in dotted-inte- ger notation and can not be specified as ".iso.org.dod.internet..." (should instead be Note: The agent caches the exit status and STDOUT of the executed program for 30 seconds after the initial query. This is to increase speed and maintain consistency of informa- tion for consecutive table queries. The cache can be flushed by a snmp-set request of integer(1) to 1.3.6.1.4.1.2021.100.VER- CLEARCACHE. execfix NAME PROG ARGS This registers a command that knows how to fix errors with the given exec or sh NAME. When 1.3.6.1.4.1.2021.8.102 for a given NAMEd entry is set to the integer value of 1, this command will be called. It defaults to a compiled value set using the EXECFIXCMD definition in the config.h file. disk PATH disk PATH [ MINSPACE | MINPERCENT% ] Checks the named disks mounted at PATH for avail- able disk space. If the disk space is less than MINSPACE (kB) if specified or less than MINPERCENT (%) if a % sign is specified, or DEFDISKMINI- MUMSPACE (kB) if not specified, the associated entry in the 1.3.6.1.4.1.2021.9.100 mib table will be set to (1) and a descriptive error message will be returned to queries of 1.3.6.1.4.1.2021.9.101. load MAX1 load MAX1 MAX5 load MAX1 MAX5 MAX15 Checks the load average of the machine and returns an error flag (1), and an text-string error message to queries of 1.3.6.1.4.1.2021.10.100 and 1.3.6.1.4.1.2021.10.101 (respectively) when the 1-minute, 5-minute, or 15-minute averages exceed the associated maximum values. If any of the MAX1, MAX5, or MAX15 values are unspecified, they default to a value of DEFMAXLOADAVE. file FILE [MAXSIZE] Monitors file sizes and makes sure they don't grow beyond a certain size. MAXSIZE defaults to infi- nite if not specified, and only monitors the size without reporting errors about it. Errors Any errors in obtaining the above information are reported via the 1.3.6.1.4.1.2021.101.100 flag and the 1.3.6.1.4.1.2021.101.101 text-string description.SMUX SUB-AGENTS To enable and SMUX based sub-agent, such as gated, use the smuxpeer configuration entry smuxpeer OID PASS For gated a sensible entry might be .1.3.6.1.4.1.4.1.3 secretACCESS CONTROL snmpd supports the View-Based Access Control Model (vacm) as defined in RFC 2275. To this end, it recognizes the following keywords in the configuration file: com2sec, group, access, and view as well as some easier-to-use wrapper directives: rocommunity, rwcommunity, rouser, rwuser. rocommunity COMMUNITY [SOURCE] [OID] rwcommunity COMMUNITY [SOURCE] [OID] These create read-only and read-write communities that can be used to access the agent. They are a quick method of using the following com2sec, group, access, and view directive lines. They are not as efficient either, as groups aren't created so the tables are possibly larger. In other words: don't use these if you have complex situations to set up. The format of the SOURCE is token is described in the com2sec directive section below. The OID token restricts access for that community to everything below that given OID. rouser USER [noauth|auth|priv] [OID] rwuser USER [noauth|auth|priv] [OID] Creates a SNMPv3 USM user in the VACM access configuration tables. Again, its more efficient (and powerful) to use the combined com2sec, group, access, and view directives instead. The minimum level of authentication and privacy the user must use is specified by the first token (which defaults to "auth"). The OID parameter restricts access for that user to everything below the given OID. com2sec NAME SOURCE COMMUNITY This directive specifies the mapping from a source/community pair to a security name. SOURCE can be a hostname, a subnet, or the word "default". A subnet can be specified as IP/MASK or IP/BITS. The first source/community combination that matches⌨️ 快捷键说明
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