configuring snmpd when setting up jailed environment

[Jonathan Horne]

> I am trying to make snmpd listen on a specific address for the JAIL
> HOST(aka physical server) and each jailed environment (aka JAIL).
>
> The server is server configured using the ezjail framework.
>
> As I read "man (8) snmpd", I should be able to do this.
>
> I am trying to make the JAIL HOST listen on udp:161 192.168.222.90
> and a JAIL to listen on udp:161 192.168.222.91
>
> obviously, each JAIL alias IP would be distinct for each jailed environment.
>
> I have edited JAIL HOST /usr/local/etc/snmp/snmpd.conf to include
>     "agentaddress udp:161 192.168.2222.90"
>
> Where do I profile this?
> How do I make this work?
> What am I doing wrong?
>
> I am humbly asking for assistance :)
>
> Thanks
> Don
> ===============
> Section: Net-SNMP (8)
> SNMPD
>
> SYNOPSIS
> snmpd [OPTIONS] [LISTENING ADDRESSES]
>
> -x ADDRESS
>     Listens for AgentX connections on the specified address rather
> than the default "/var/agentx/master". The address can either be a
> Unix domain socket path, or the address of a network interface. The
> format is the same as the format of listening addresses described
> below.
> ==============
>
> ==== some of my notes ===
>
> JAIL Host hier, separate partition for jails
> /usr/jails
>
> basejail & newjail
> /usr/jails/basejail
> /usr/jails/newjails
>
> I did not modify the ezjail.conf file
>
>>From JAIL HOST
> # mount_procfs proc  /usr/jails/web/proc
>
>>From within the JAIL
> I installed /usr/ports/net-mgmt/net-snmp
> # make
> # make install clean
>
> mkdir /snmp in /usr/local/etc
> create snmpd.conf file
> # cp /usr/local/share/snmp/snmpd.conf.example /usr/local/etc/snmp/snmpd.conf
>
> Made minial changes to snmpd.conf in JAIL Host and JAIL.
> # sec.name  source          community
> # com2sec   local      localhost       public
> com2sec     local 192.168.222.91 public
> com2sec     mynetwork 192.168.222.0/24      public
>
> Added to JAIL rc.conf and JAIL HOST rc.conf
> # vi /usr/jails/web/etc/rc.conf
> snmpd_enable="YES"
> snmpd_flags="-a"
> snmpd_pidfile="/var/run/snmpd.pid"
>
> restart the JAIL
>
>>From JAIL
> #  snmpwalk -c public -u com2sec -v 1 web system
> This does output allot of expected snmp data EXCEPT that it is listing
> the data for the JAIL HOST, not the JAIL.
>
> #  less /var/log/snmpd.log
> init_kmem: kvm_openfiles failed: /dev/mem: No such file or directory
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