zmej.org.ua - Памятки системного администратора.

Идея не моя, вычитал на просторах интернета. Часто бывает, что Вам необходимо видеть текущую нагрузку на Ваш канал. 

#cd /usr/ports/net-mgmt/net-snmp

#make install clean

snmpd_enable=”YES”

snmpd_flags=”-a -Lsd -p /var/run/snmpd.pid”

#snmpconf -i

The following installed configuration files were found:

 

1:  /usr/local/share/snmp/snmpd.conf

 

Would you like me to read them in?  Their content will be merged with the

output files created by this session.

 

Valid answer examples: “all”, “none”,”3″,”1,2,5″

 

Read in which (default = all): all

 

I can create the following types of configuration files for you.

Select the file type you wish to create:

(you can create more than one as you run this program)

 

1:  snmpd.conf

2:  snmptrapd.conf

3:  snmp.conf

 

Other options: quit

 

Select File: 1

 

The configuration information which can be put into snmpd.conf is divided

into sections.  Select a configuration section for snmpd.conf

that you wish to create:

 

1:  System Information Setup

2:  Access Control Setup

3:  Trap Destinations

4:  Monitor Various Aspects of the Running Host

5:  Extending the Agent

6:  Agent Operating Mode

 

Other options: finished

 

Select section: 1

 

Section: System Information Setup

Description:

This section defines some of the information reported in

the “system” mib group in the mibII tree.

 

Select from:

 

1:  The [typically physical] location of the system.

2:  The contact information for the administrator

3:  The proper value for the sysServices object.

 

Other options: finished, list

 

Select section: 1

 

Configuring: syslocation

Description:

The [typically physical] location of the system.

Note that setting this value here means that when trying to

perform an snmp SET operation to the sysLocation.0 variable will make

the agent return the “notWritable” error code.  IE, including

this token in the snmpd.conf file will disable write access to

the variable.

arguments:  location_string

 

The location of the system: Kyiv

 

Finished Output: syslocation  Kyiv

 

Section: System Information Setup

Description:

This section defines some of the information reported in

the “system” mib group in the mibII tree.

 

Select from:

 

1:  The [typically physical] location of the system.

2:  The contact information for the administrator

3:  The proper value for the sysServices object.

 

Other options: finished, list

 

Select section: 2

 

Configuring: syscontact

Description:

The contact information for the administrator

Note that setting this value here means that when trying to

perform an snmp SET operation to the sysContact.0 variable will make

the agent return the “notWritable” error code.  IE, including

this token in the snmpd.conf file will disable write access to

the variable.

arguments:  contact_string

 

The contact information: email@gmail.com

 

Finished Output: syscontact  email@gmail.com

 

Section: System Information Setup

Description:

This section defines some of the information reported in

the “system” mib group in the mibII tree.

 

Select from:

 

1:  The [typically physical] location of the system.

2:  The contact information for the administrator

3:  The proper value for the sysServices object.

 

Other options: finished, list

 

Select section: 3

 

Configuring: sysservices

Description:

The proper value for the sysServices object.

arguments:  sysservices_number

 

does this host offer physical services (eg, like a repeater) [answer 0 or 1]: 0

does this host offer datalink/subnetwork services (eg, like a bridge): 0

does this host offer internet services (eg, supports IP): 0

does this host offer end-to-end services (eg, supports TCP): 0

does this host offer application services (eg, supports SMTP): 1

 

Finished Output: sysservices 64

 

Section: System Information Setup

Description:

This section defines some of the information reported in

the “system” mib group in the mibII tree.

 

Select from:

 

1:  The [typically physical] location of the system.

2:  The contact information for the administrator

3:  The proper value for the sysServices object.

 

Other options: finished, list

 

Select section: finished

 

The configuration information which can be put into snmpd.conf is divided

into sections.  Select a configuration section for snmpd.conf

that you wish to create:

 

1:  System Information Setup

2:  Access Control Setup

3:  Trap Destinations

4:  Monitor Various Aspects of the Running Host

5:  Extending the Agent

6:  Agent Operating Mode

 

Other options: finished

 

Select section: finished

 

The configuration information which can be put into snmpd.conf is divided

into sections.  Select a configuration section for snmpd.conf

that you wish to create:

 

1:  System Information Setup

2:  Access Control Setup

3:  Trap Destinations

4:  Monitor Various Aspects of the Running Host

5:  Extending the Agent

6:  Agent Operating Mode

 

Other options: finished

 

Select section: 2

 

Section: Access Control Setup

Description:

This section defines who is allowed to talk to your running

snmp agent.

 

Select from:

 

1:  a SNMPv3 read-write user

2:  a SNMPv3 read-only user

3:  a SNMPv1/SNMPv2c read-only access community name

4:  a SNMPv1/SNMPv2c read-write access community name

 

Other options: finished, list

 

Select section: 3

 

Configuring: rocommunity

Description:

a SNMPv1/SNMPv2c read-only access community name

arguments:  community [default|hostname|network/bits] [oid]

 

The community name to add read-only access for: pcbsd

The hostname or network address to accept this community name from [RETURN for all]: localhost

The OID that this community should be restricted to [RETURN for no-restriction]:

 

Finished Output: rocommunity  pcbsd localhost

 

Section: Access Control Setup

Description:

This section defines who is allowed to talk to your running

snmp agent.

 

Select from:

 

1:  a SNMPv3 read-write user

2:  a SNMPv3 read-only user

3:  a SNMPv1/SNMPv2c read-only access community name

4:  a SNMPv1/SNMPv2c read-write access community name

 

Other options: finished, list

 

Select section: finished

 

The configuration information which can be put into snmpd.conf is divided

into sections.  Select a configuration section for snmpd.conf

that you wish to create:

 

1:  System Information Setup

2:  Access Control Setup

3:  Trap Destinations

4:  Monitor Various Aspects of the Running Host

5:  Extending the Agent

6:  Agent Operating Mode

 

Other options: finished

 

Select section: 6

 

Section: Agent Operating Mode

Description:

This section defines how the agent will operate when it

is running.

 

Select from:

 

1:  Should the agent operate as a master agent or not.

2:  The system user that the agent runs as.

3:  The system group that the agent runs as.

4:  The IP address and port number that the agent will listen on.

 

Other options: finished, list

 

Select section: 4

 

Configuring: agentaddress

Description:

The IP address and port number that the agent will listen on.

By default the agent listens to any and all traffic from any

interface on the default SNMP port (161).  This allows you to

specify which address, interface, transport type and port(s) that you

want the agent to listen on.  Multiple definitions of this token

are concatenated together (using ‘:’s).

arguments: [transport:]port[@interface/address],…

 

Enter the port numbers, etc that you want the agent to listen to: localhost

 

Finished Output: agentaddress  localhost

 

Section: Agent Operating Mode

Description:

This section defines how the agent will operate when it

is running.

 

Select from:

 

1:  Should the agent operate as a master agent or not.

2:  The system user that the agent runs as.

3:  The system group that the agent runs as.

4:  The IP address and port number that the agent will listen on.

 

Other options: finished, list

 

Select section: finished

 

The configuration information which can be put into snmpd.conf is divided

into sections.  Select a configuration section for snmpd.conf

that you wish to create:

 

1:  System Information Setup

2:  Access Control Setup

3:  Trap Destinations

4:  Monitor Various Aspects of the Running Host

5:  Extending the Agent

6:  Agent Operating Mode

 

Other options: finished

 

Select section: finished

 

I can create the following types of configuration files for you.

Select the file type you wish to create:

(you can create more than one as you run this program)

 

1:  snmpd.conf

2:  snmptrapd.conf

3:  snmp.conf

 

Other options: quit

 

Select File: quit

 

The following files were created:

 

snmpd.conf installed in /usr/local/share/snmp

#/usr/local/etc/rc.d/snmpd.sh start

#sockstat -4 | grep snmpd

root     snmpd      621   7  tcp4   *:199                 *:*

root     snmpd      621   9  udp4   127.0.0.1:161         *:*

#cd /usr/ports/net-mgmt/mrtg/

#make install clean

#cfgmaker –global ‘WorkDir: /usr/local/www/data-dist’ –global ‘Options[_]: bits,growright’ –output /usr/local/etc/mrtg/mrtg.cfg pcbsd@localhost

#chown -R www /usr/local/etc/mrtg/

#chown -R www /usr/local/www/data-dist

*/5 * * * * root /usr/local/bin/mrtg /usr/local/etc/mrtg/mrtg.cfg

indexmaker –output /usr/local/www/data-dist index.html –columns=1 /usr/local/etc/mrtg/mrtg.cfg