Can I override the defVersion in host specific conf files?

Ari Rabinowitz <[email protected]> Mon, 21 Apr 2025 15:43:30 -0400
Newsgroups gmane.network.net-snmp.user
Message-ID <CAECnTpP_HubnToDJ=jMztW1KJV_QN5RjcKk8iR+hji1=rTLvVg@mail.gmail.com>
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Hi,

I'm trying to set up SNMP monitoring of many of our devices. Since most of
them support SNMPv3 I've set up the following in my /etc/snmp/snmp.conf:
defVersion 3
defSecurityLevel authPriv
defAuthType SHA
defPrivType AES
defAuthPassphrase REDACTED
defPrivPassphrase  REDACTED
defSecurityName USER

I'm able to override the Version 3 parameters such as defSecurityLevel,
defAuthType and the passphrases for the devices which support SNMPv3 in
host specific configuration files in /etc/snmp/hosts/, but I can't find any
way to specify in a host-specific configuration that the host uses version
2c or version 1. Is there any way to do that, if the general default is
version 3?

I'm running NET-SNMP version: 5.9.1 on an Ubuntu 24.04 system.

Thanks,
Ari

-- 
Ari Rabinowitz
Systems Administrator
IT Infrastructure and Support
Computer Science Department
Columbia University
Tel: 212-853-8418

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<div dir=3D"ltr"><div dir=3D"ltr"><div>Hi,</div><div><br></div><div>I&#39;m=
 trying to set up SNMP monitoring of many of our devices. Since most of the=
m support SNMPv3 I&#39;ve set up the following in my /etc/snmp/snmp.conf:<b=
r>defVersion 3<br>defSecurityLevel authPriv<br>defAuthType SHA<br>defPrivTy=
pe AES<br></div><div>defAuthPassphrase REDACTED<br>defPrivPassphrase=C2=A0

REDACTED<br>defSecurityName USER<br></div><div><br></div><div>I&#39;m able =
to override the Version 3 parameters such as defSecurityLevel, defAuthType =
and the passphrases for the devices which support SNMPv3 in host specific c=
onfiguration files in /etc/snmp/hosts/, but I can&#39;t find any way to spe=
cify in a host-specific configuration that the host uses version 2c or vers=
ion 1. Is there any way to do that, if the general default is version 3?</d=
iv><div><br></div><div>I&#39;m running=C2=A0NET-SNMP version: 5.9.1 on an U=
buntu 24.04 system.</div><div><br></div><div>Thanks,</div><div>Ari</div><di=
v><br></div><span class=3D"gmail_signature_prefix">-- </span><br><div dir=
=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div =
dir=3D"ltr"><div><font size=3D"2" face=3D"arial, helvetica, sans-serif">Ari=
 Rabinowitz<br></font></div><div><font size=3D"2" face=3D"arial, helvetica,=
 sans-serif">Systems Administrator<br></font></div><div><font size=3D"2" fa=
ce=3D"arial, helvetica, sans-serif">IT Infrastructure and Support<br></font=
></div><div><font size=3D"2" face=3D"arial, helvetica, sans-serif">Computer=
 Science Department</font></div><div><font size=3D"2" face=3D"arial, helvet=
ica, sans-serif">Columbia University</font></div><font size=3D"2" face=3D"a=
rial, helvetica, sans-serif">Tel:=C2=A0<a value=3D"+12129397131" style=3D"c=
olor:rgb(17,85,204)">212-853-8418</a></font></div></div></div>
</div>

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