...
Ping test, The Ping tool is used to test whether a particular host is reachable across an IP network. A Ping measures the time it takes for packets to be sent from the local host to a destination computer and back.
Code Block ping x.x.x.x #add the ip address you need to reach
Traceroute, is a network diagnostic tool used to track in real-time the pathway taken by a packet on an IP network from source to destination, reporting the IP addresses of all the routers it pinged in between
Code Block traceroute <ip_Node> #add the ip address you need to reach
MTR, Mtr(my traceroute) is a command-line network diagnostic tool that provides the functionality of both the ping and traceroute commands
Code Block sudo mtr -r 8.8.8.8 [sample results below] HOST: endor Loss% Snt Last Avg Best Wrst StDev 1. 69.28.84.2 0.0% 10 0.4 0.4 0.3 0.6 0.1 2. 38.104.37.141 0.0% 10 1.2 1.4 1.0 3.2 0.7 3. te0-3-1-1.rcr21.dfw02.atlas. 0.0% 10 0.8 0.9 0.8 1.0 0.1 4. be2285.ccr21.dfw01.atlas.cog 0.0% 10 1.1 1.1 0.9 1.4 0.1 5. be2432.ccr21.mci01.atlas.cog 0.0% 10 10.8 11.1 10.8 11.5 0.2 6. be2156.ccr41.ord01.atlas.cog 0.0% 10 22.9 23.1 22.9 23.3 0.1 7. be2765.ccr41.ord03.atlas.cog 0.0% 10 22.8 22.9 22.8 23.1 0.1 8. 38.88.204.78 0.0% 10 22.9 23.0 22.8 23.9 0.4 9. 209.85.143.186 0.0% 10 22.7 23.7 22.7 31.7 2.8 10. 72.14.238.89 0.0% 10 23.0 23.9 22.9 32.0 2.9 11. 216.239.47.103 0.0% 10 50.4 61.9 50.4 92.0 11.9 12. 216.239.46.191 0.0% 10 32.7 32.7 32.7 32.8 0.1 13. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 14. google-public-dns-a.google.c 0.0% 10 32.7 32.7 32.7 32.8 0.0- snmpwalk, is a Simple Network Management Protocol (SNMP) application present on the Security Management System (SMS) CLI that uses SNMP GETNEXT requests to query a network device for information. An object identifier (OID) may be given on the command line.
Code Block The following example CLI command will return the IPS temperature information: Command:snmpwalk -v 2c -c tinapc <IP address> 1.3.6.1.4.1.10734.3.5.2.5.5 Command Explanation: In this case the CLI command breaks down as following; snmpwalk = SNMP application -v 2c = specifies what SNMP version to use (1, 2c, 3) -c tinapc = specifies the community string. Note: The IPS has the SNMP read-only community string of "tinapc" <IP address> = specifies the IP address of the IPS device 1.3.6.1.4.1.10734.3.5.2.5.5 = OID parameter for the IPS temperature information Results: SNMPv2-SMI::enterprises.10734.3.5.2.5.5.1.0 = INTEGER: 27 SNMPv2-SMI::enterprises.10734.3.5.2.5.5.2.0 = INTEGER: 50 SNMPv2-SMI::enterprises.10734.3.5.2.5.5.3.0 = INTEGER: 55 SNMPv2-SMI::enterprises.10734.3.5.2.5.5.4.0 = INTEGER: 0 SNMPv2-SMI::enterprises.10734.3.5.2.5.5.5.0 = INTEGER: 85 Results Explanation: SNMPv2-SMI::enterprises.10734.3.5.2.5.5.1.0 = INTEGER: 27 = The chassis temperature (27° Celsius / 80.6° Fahrenheit) SNMPv2-SMI::enterprises.10734.3.5.2.5.5.2.0 = INTEGER: 50 = The major threshold value for chassis temperature (50° Celsius / 122° Fahrenheit) SNMPv2-SMI::enterprises.10734.3.5.2.5.5.3.0 = INTEGER: 55 = The critical threshold value of chassis temperature (55° Celsius / 131° Fahrenheit) SNMPv2-SMI::enterprises.10734.3.5.2.5.5.4.0 = INTEGER: 0 = The minimum value of the chassis temperature range ( 0° Celsius / 32° Fahrenheit) SNMPv2-SMI::enterprises.10734.3.5.2.5.5.5.0 = INTEGER: 85 = The maximum value of the chassis temperature range (85° Celsius / 185° Fahrenheit)
It is important to see that the device is pingable, does not have latency, packet loss, and the SNMP data is been collected.
Service performance
NMIS is using some important services to make the solution work, sometimes devices stop working due to some of these services are interrupted, It is always a good idea to validate if those are running, to validate this you need to execute the next commands. This in order to provide even more security, as some of these services are crucial for the operation of the operating system. On the other hand, in systems like Unix or Linux, the services are also known as daemons. In this case, it is essential to validate the services that make up the OPMANTEK monitoring system (nmis).
| Code Block |
|---|
service mongod status
service omkd status
service nmisd status
service httpd status
service opchartsd restart
service opeventsd status
service opconfigd status
service opflowd status
service crond status
#if someone of this daemons is stopped, you need to execute same commands with start/restart options. |
Server hardware requirements.
...
| Code Block |
|---|
Cpu(s): 6.8%us, 3.8%sy, 0.2%ni, 74.4%id, 28.2%wa, 0.1%hi, 0.5%si, 0.0%st |
User processes of CPU in percentage(6.8%us)
System processes of CPU in percentage(3.8%sy)
Priority upgrade nice of CPU in percentage(0.2%ni)
Percentage of the CPU not used (74.4%id)
Processes waiting for I/O operations of CPU in percentage(28.2%wa) ####### This is not good for the server performance.
Serving hardware interrupts of CPU in percentage(0.1% hi — Hardware IRQ
Percentage of the CPU serving software interrupts (0.0% si — Software Interrupts
The amount of CPU ‘stolen’ from this virtual machine by the hypervisor for other tasks (such as running another virtual machine) will be 0 on desktop and server without Virtual machine. (0.0%st — Steal Time)
4. Memory
These rows will provide you the information about RAM usage. It shows you total memory in use, free, buffers cached.
...