Tranquil IT Forum

erickeke wrote: ↑Oct 21, 2019 - 6:56 PM Most of my machines were disconnected.

It's worth noting that this can happen if there's more than a 5-minute time difference between the client and server times.

In my case, that wasn't the problem.

Looking at my machines with TCPVIEW (from Sysinternals), I realized they were trying to use the proxy.

I saw a message from sfonteneau saying that the WebSocket library sometimes insisted on using the proxy.

On my machines, I had defined the environment variables http_proxy, https_proxy, and no_proxy for software like Git, npm, and other Linux-based applications.

However, upon examining the code, I realized that the library couldn't read the `no_proxy` directive for anything in a subdomain, e.g., `.mydomain.com`.

So, I updated my environment variable on all my machines, adding the FQDN of my server, `wapt.mydomain.com`: problem solved!

I only have one remaining issue, but I'm waiting to see if the procedure I started tonight will resolve it:

the Python service on my Wapt server is running at 99% CPU usage, and I'm getting several messages: `
WARNING Invalid session 917a29931507404db3d67aad566bfb38`.

The agents are up to date; I hope this is related to my proxy problem. More news tomorrow.

Detail for the Websocket library:

In C:\Program Files (x86)\wapt\lib\site-packages\websocket\_url.py:

The following function does not support subdomain verification (.mydomain.com)
def _is_no_proxy_host(hostname, no_proxy):
if not no_proxy:
v = os.environ.get("no_proxy", "").replace(" ", "")
no_proxy = v.split(",")
if not no_proxy:
no_proxy = DEFAULT_NO_PROXY_HOST

if hostname in no_proxy:
return True
elif _is_ip_address(hostname):
return any([_is_address_in_network(hostname, subnet) for subnet in no_proxy if _is_subnet_address(subnet)])

return False