Which tool(s) can be leveraged to diagnose connection problems between an indexer and forwarder? (Select all that apply.)
Which tool(s) can be leveraged to diagnose connection problems between an indexer and forwarder? (Select all that apply.)
To diagnose connection problems between an indexer and a forwarder, telnet can be used to determine if a connection to a specific port is possible and if the port is open or blocked by a firewall. Tcpdump can be utilized to capture and analyze the network traffic between the forwarder and indexer to identify any issues with the communication. Splunk btool is used for troubleshooting Splunk configuration files and doesn't directly help with network connectivity problems. Splunk btprobe is related to the fishbucket checkpoints and not applicable for diagnosing connection issues.
My Answer is A and B
B, C you wouldn't use telnet you would use ssh
Yes you would use a telnet from forwarder to indexer to see if you can connect to certain port. Like 9997 to see if it will connect and if it is open and passed firewalls.
I think B and C is correct. Don't know why you would use Telnet when u could try to ssh into the instance. Page 83 of the Troubleshooting pdf shows explicitly how tcpdump can be used to troubleshoot the connection. btprobe is used for resetting checkpoints in the fishbucket
AB A: telnet can be used to quickly connect to a host/port to see if it is open/running and blocked by a firewall or not B: tcpdump can be used to show the network traffic to a particular host/port where you can look for what is being sent and returned - errors, etc. But not C or D because those are not network tools for diagnosing connection issues - they are for working with Splunk configurations locally on the host that the tool resides on.
This is the way
Btool does not give information about the conectivity, just the .conf files
I'm always starting with telnet to test if the connection is possible and ports are open. Next step is to check if the connection is actually happening and packets are travelling using tcpdump. On the Forwarder $ curl -v telnet://indexer-ip:9997 (On Windows) $ telnet indexer-ip 9997 (on Windows) $ tcpdump -i any -nn dst indexer-ip and port 9997 btool is for configuration files debugging btprobe queries the fishbucket for checkpoints stored by monitor inputs.
I will say A and B also.
I would have to go with A and B. https://community.splunk.com/t5/Deployment-Architecture/How-to-check-Splunk-components-connectivity-in-a-distributed/m-p/338256
since the question is for diagnosing connection problems. im would have to agree A & B. telnet is not absolutely required, but its useful to determine connection . we normally use nc command in linux to check connection $ nc [-options] [HostName or IP] [PortNumber] $ nc -zvw10 192.168.0.1 22 z: zero-I/O mode which is used for scanning v: for verbose output w10: timeout wait 10 seconds btool is only useful if you want to confirm the stanza and its setting to monitor specific folder is avail.
I would say A and B, just today i was telnetting to see if the port was up.
A & B- We use telnet all the time to check to see the output of the connection attempt for suspected networking issues with Splunk UF's and servers.
A and B for sure
A and B