openssh connectivity challenge

Running a Power 5 Blade on AIX, with remote connectivity issues via putty.

AIX V 6.1.00-02
openssh V5.2.0.5300
openssl V0.9.8.1103

Intermittent remote connections. Seems to connect every other time I try via my putty client.

Using hosts.allow and hosts.deny to filter IP Addrss connectivity.

Any comment's would be appreciated, as IBM states they don't support openssh and openssl.

check

  • issues with IP address (duplicates?),
  • problems with name resolution (does it make a difference whether you connect via IP or name, do you use DNS or hosts?),
  • routing issues (check route to target and route back from target)
  • flapping etherchannel
  • any other redundant component you might use in the network

and so on.

We had a similar problem here and the solution was to download the latest version of putty.exe. That stopped the calls.