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Full Discussion: Accept SNMP Packets...
Special Forums UNIX and Linux Applications Infrastructure Monitoring Accept SNMP Packets... Post 302471552 by karlochacon on Saturday 13th of November 2010 05:45:33 PM
Old 11-13-2010
hi again

by the way I have to configure this SNMP stuff on a firewall that is part of a SNMP project
so they want to allow only some hosts to send SNMP packets a across this Linux firewall

Since I still don't get how to do it on SNMP like in Windows

I was thinking using hosts.allow and deny like this

Code:
hosts.allow
snmpd : 192.168.2.1 192.168.2.2 192.168.2.3 


hosts.deny
snmpd : ALL

but I read this
# Never configure TCP Wrappers on firewall host.
# Put TCP Wrappers behind a firewall systems as TCP Wrappers is no substitute for netfilter or pf firewall.

on
Explain Linux / UNIX TCP Wrappers / Find Out If Program Compiled With TCP Wrappers


so any guidance on SNMP way?
thanks a lot
 

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SNMPD.INTERNAL(5)						     Net-SNMP							 SNMPD.INTERNAL(5)

NAME
snmpd.internal - internal configuration of the Net-SNMP agent DESCRIPTION
The snmpd.conf(5) man page defines the syntax and behaviour of the main configuration directives that can be used to control the operation of the Net-SNMP agent, and the management information it provides. However there are several other configuration directives (many of which, though not all, start with a leading underscore) that are recog- nised by the agent. These are typically used to retain configuration across agent restarts, and are not intended for direct user access. This man page list these directives, giving a brief indication of where they are used. For full details - see the relevant source files. If you can't follow that source, you probably shouldn't be fiddling with these directives! AGENT BEHAVIOUR
quit ACCESS CONTROL
VACM Configuration vacmView / vacmGroup / vacmAccess These directives are used to retain dynamically configured access control settings. SYSTEM INFORMATION
System Group setSerialNo This directive is used to implement the advisory lock object snmpSetSerialNo. psyslocation / psyscontact / psysname These directives are used to retain dynamically configured system settings. They will be overridden by the corresponding sysLoca- tion, sysContact and sysName directives. ACTIVE MONITORING
Notification Handling pauthtrapenable This directive is used to retain the dynamically configured setting of whether the agent should generate authenticationFailure traps. It will be overridden by the corresponding authtrapenable directive. snmpNotify*Table targetAddr / targetParams These directives are used to retain dynamically configured notification destination settings. DisMan Event MIB _mteE*Table, _mteOTable, _mteT*Table These directives are used to retain dynamically configured event, object and monitor trigger settings. mteObjectsTable / mteTriggerTable These directives are for compatibility with the previous disman/event-mib implementation. DisMan Schedule MIB _schedTable This directive is used to retain dynamically configured scheduled events. EXTENDING AGENT FUNCTIONALITY
Arbitrary Extension Commands extend-sh exec2 / sh2 / execFix2 These directives were defined by analogy with equivalent directives in the previous ucd-snmp/extensible implementation. They are deprecated, and should not be used. FILES
/etc/snmp/snmpd.conf SEE ALSO
snmpconf(1), snmpd.conf(5), snmp.conf(5), snmp_config(5), snmpd(8), EXAMPLE.conf, netsnmp_config_api(3). V5.6.2.1 06 Dec 2005 SNMPD.INTERNAL(5)
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