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SNMP can not be deleted
Closed, DuplicatePublicBUG

Description

To reproduce

set service snmp community public client 127.0.0.1
commit

delete service snmp
commit

[ service snmp ]
Job for snmpd.service failed because the control process exited with error code.
See "systemctl status snmpd.service" and "journalctl -xeu snmpd.service" for details.

Journalctl

vyos@r4# journalctl -xeu snmpd.service
░░ The job identifier is 2624 and the job result is done.
Nov 04 13:27:41 r4 systemd[1]: Starting snmpd.service - Simple Network Management Protocol (SNMP) Daemon....
░░ Subject: A start job for unit snmpd.service has begun execution
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ A start job for unit snmpd.service has begun execution.
░░ 
░░ The job identifier is 2688.
Nov 04 13:27:41 r4 snmpd[4088]: /etc/snmp/snmpd.conf: line 16: Error: Blank line following iquerySecName token.
Nov 04 13:27:41 r4 snmpd[4088]: /usr/share/snmp/snmpd.conf: line 3: Error: Blank line following rwuser token.
Nov 04 13:27:41 r4 snmpd[4088]: net-snmp: 2 error(s) in config file(s)
Nov 04 13:27:41 r4 snmpd[4088]: /etc/snmp/snmpd.conf: line 16: Error: Blank line following iquerySecName token.
Nov 04 13:27:41 r4 snmpd[4088]: iquerySecName has not been configured - internal queries will fail
Nov 04 13:27:41 r4 snmpd[4088]: /etc/snmp/snmpd.conf: line 22: Error: You must specify a default user name using the agentSecName token
Nov 04 13:27:41 r4 snmpd[4088]: /etc/snmp/snmpd.conf: line 23: Error: You must specify a default user name using the agentSecName token
Nov 04 13:27:41 r4 snmpd[4088]: /usr/share/snmp/snmpd.conf: line 3: Error: Blank line following rwuser token.
Nov 04 13:27:41 r4 snmpd[4088]: net-snmp: 4 error(s) in config file(s)
Nov 04 13:27:41 r4 snmpd[4088]: Warning: no access control information configured.
                                  (Config search path: /etc/snmp:/usr/share/snmp:/usr/lib/x86_64-linux-gnu/snmp)
                                  It's unlikely this agent can serve any useful purpose in this state.
                                  Run "snmpconf -g basic_setup" to help you configure the snmpd.conf file for this agent.
Nov 04 13:27:41 r4 snmpd[4088]: Error opening specified endpoint "6:161"
Nov 04 13:27:41 r4 snmpd[4088]: Server Exiting with code 1
Nov 04 13:27:41 r4 systemd[1]: snmpd.service: Main process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ An ExecStart= process belonging to unit snmpd.service has exited.
░░ 
░░ The process' exit code is 'exited' and its exit status is 1.
Nov 04 13:27:41 r4 systemd[1]: snmpd.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ The unit snmpd.service has entered the 'failed' state with result 'exit-code'.
Nov 04 13:27:41 r4 systemd[1]: Failed to start snmpd.service - Simple Network Management Protocol (SNMP) Daemon..
░░ Subject: A start job for unit snmpd.service has failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ A start job for unit snmpd.service has finished with a failure.
░░ 
░░ The job identifier is 2688 and the job result is failed.
[edit]
vyos@r4#

It is trying to restart the service instead of delete and generates part of config that already not in the dictionary.

For example, after deleting line 16 is empty

vyos@r4# cat -n /etc/snmp/snmpd.conf
     1	### Autogenerated by snmp.py ###
     2	
     3	# non configurable defaults
     4	sysObjectID 1.3.6.1.4.1.44641
     5	sysServices 14
     6	master agentx
     7	agentXPerms 0777 0777
     8	pass .1.3.6.1.2.1.31.1.1.1.18 /opt/vyatta/sbin/if-mib-alias
     9	smuxpeer .1.3.6.1.2.1.83
    10	smuxpeer .1.3.6.1.2.1.157
    11	smuxsocket localhost
    12	
    13	# linkUp/Down configure the Event MIB tables to monitor
    14	# the ifTable for network interfaces being taken up or down
    15	# for making internal queries to retrieve any necessary information
    16	iquerySecName 
    17	
    18	# Modified from the default linkUpDownNotification
    19	# to include more OIDs and poll more frequently
    20	notificationEvent  linkUpTrap    linkUp   ifIndex ifDescr ifType ifAdminStatus ifOperStatus
    21	notificationEvent  linkDownTrap  linkDown ifIndex ifDescr ifType ifAdminStatus ifOperStatus
    22	monitor  -r 10 -e linkUpTrap   "Generate linkUp" ifOperStatus != 2
    23	monitor  -r 10 -e linkDownTrap "Generate linkDown" ifOperStatus == 2
    24	
    25	# Remove all old ifTable entries with the same ifName as newly appeared
    26	# interface (with different ifIndex) - this is the case on e.g. ppp interfaces
    27	interface_replace_old yes
    28	
    29	# T4902: exclude container storage from monitoring
    30	ignoreDisk /usr/lib/live/mount/persistence/container
    31	
    32	########################
    33	# configurable section #
    34	########################
    35	
    36	# Default system description is VyOS version
    37	sysDescr VyOS 
    38	
    39	
    40	# Listen
    41	agentaddress unix:/run/snmpd.socket,:161,6:161
    42	
    43	# SNMP communities
    44	
    45	# Default RESTRICTED view
    46	view RESTRICTED    included .1 80
    47	# ipRouteTable oid: excluded
    48	view RESTRICTED    excluded  .1.3.6.1.2.1.4.21
    49	# ipNetToMediaTable oid: excluded
    50	view RESTRICTED    excluded  .1.3.6.1.2.1.4.22
    51	# ipNetToPhysicalPhysAddress oid: excluded
    52	view RESTRICTED    excluded  .1.3.6.1.2.1.4.35
    53	# ipForward oid: excluded
    54	view RESTRICTED    excluded  .1.3.6.1.2.1.4.24
    55	
    56	
    57	
    58	
    59	
    60

Details

Version
VyOS 1.5-rolling-202311040021
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Bug (incorrect behavior)

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