Check for open ports on external server instances from the command line

[feixfb]

Hi,

sry for this question.... I hope i am only blind.

Is there a possibility to check if an externe Port is open and reachable?

I try telnet and nc both are not installed and i am not sure it would be a good idea to install these pakages from an rpm file.

Using  vRealize Log Insight appliance Version 4.7

greetings

feix

[daphnissov]

Not sure what you're asking. Are you trying to check if a port is open on an external system from the Log Insight appliance itself?

[feixfb]

Exactly,

the connection between my log insigh installation an the AD is not working.. there are al lot of posibilitys why it is not working..

The first thing i checked was the name resolution.. the next would be to check if the ip on the specific port is reachable by the log insight installation. For this i normaly use something like tcproute. In the case of vmware appliances this is not installed. So i use nc or telnet. But both are no installed on the log insight appliance.

[daphnissov · Accepted solution]

Yeah, you can't upload those tools to a VMware appliance and start using them. But curl is there (among others) which can be used to troubleshoot.