Host Discovery Returns Dead/Unreachable Hosts on Dual Homed ...

Upon conducting a host discovery Nessus is reporting that hosts 3 and 4 are dead/unreachable and not responding to pings.

Nessus Finding That a "LIVE" host, is "DEAD" - Tenable University

For your host discovery are you using more than one type? IE, ping and TCP probes? The device could be blocking ping probes which is why SC would say it is dead ...

Host Discovery showed the hosts are dead, which are not.

I did a host discovery from Tenable SC against a few ranges, it shows that all hosts are dead but they are reachable from the scanner itself, both ping and ...

How to detect UNREACHABLE HOSTS in Ansible - Stack Overflow

you can use changed_when , when the changed is false, get the unreachable host - name: Test connection and gather facts hosts: all serial: 1 ...

Host Discovery | Nmap Network Scanning

The list scan is a degenerate form of host discovery that simply lists each host of the network(s) specified, without sending any packets to the target hosts.

Dumb problem, comes and goes. Host names resolve when pinging ...

Host names resolve when pinging but I get: Reply from (my local IP): destination host unreachable ... It was also only on two hosts. Upvote 1

Host Discovery error message when trying to di... - HPE Community

... two messages below for each server: HostAgentCollectorThread ... This is an XP512 discovering HP-UX 11.11 hosts. Any ideas are welcome. 0 ...

Nmap says host down when host is up

Yes, this definitely sounds like a promiscuous mode issue. Please show us the output of running ip addr show on the server that you are ...

Linux: ip neigh show says "FAILED". What can be the cause?

To identify the cause, you need to ping multiple hosts in your subnet and check your arp cache status as the connectivity problem occurs. If ...

ansible: silently skip unreachable hosts - Super User

- hosts: new # Does not seem to do anything ignore_errors: True tasks: - name: configure freshly discovered host # ... ... unreachable=1 failed=0 ...

Common LSF problems

If the /etc/hosts file on the host where the master LIM is running is configured with the host name assigned to the loopback IP address (127.0.0.1), LSF client ...

Failed to connect to the host via ssh: Permission denied (publickey ...

Comment all lines in your hosts file add this line ... [webserver] 35.165.79.66 ansible_user=ubuntu ... and try to run ... ansible webserver -m ping - ...

Timing and Performance | Nmap Network Scanning

These two options are global, affecting an entire scan, not individual hosts. They only affect port scans and host discovery scans. Other features like OS ...

ssh tunnel refusing connections with "channel 2: open failed"

Problem solved: $ ssh -L 7000:127.0.0.1:7000 user@host -N -v -v ...apparently, 'localhost' was not liked by the remote host.

Service critical on unreachable hosts - Nagios Support Forum

* Added all hosts (two from two subnets; production and lab) * Turned off the lab network * Defined Parent/child relations & restarted nagios -> lab shows ...

Scan Results show host as Alive, but logs say it's dead

Probably the host is responding to the host discovery, but disallow(or even actively block) further connections. Please check for firewalls o the way or ...

Why is the destination host unreachable when pinging but the laptop ...

So you have two laptops one is using internet from Tata Photon and another one is from different WiFi connection. And you are trying to ping ...

Network or DNS problem for some pods #535 - k3s-io/k3s - GitHub

The cert-manager pod can resolve everything correctly, but my test pods cannot resolve anything no matter what host they run on, same as metrics ...

Pivoting in Metasploit

In order for pivoting to work, you must have compromised a host that is connected to two or more networks. This usually means that the host has ...

Destination Host Unreachable - Machines - Hack The Box :: Forums

Nmap done: 1 IP address (0 hosts up) scanned in 3.31 seconds ... Host discovery disabled (-Pn). All addresses will be marked 'up' and ...