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Martin Hope
royco
Asked: 2020-09-13 19:56:25 +0800 CST
  • 0

I need a SSH tunnel from my home to private IP 10.4.100.6 as diagrammed here:

+-------+    +-----------------+  +------------+  +-------------+
|       |    |                 |  |            |  |             |
| Home  +----+ foo.example.com +--+ 10.4.100.5 +--+  10.4.100.6 |
|       |    |                 |  |            |  |             |
+-------+    +-----------------+  +------------+  +-------------+

I have root access on 10.4.100.5 and 10.4.100.6. I have zero access to foo.example.com. When I ssh to foo.example.com, I somehow land on 10.4.100.5, which is a different host. We're talking about 4 separate hosts. I assume foo.example.com uses one-to-one NAT.

I tried:

ssh -L 8080:10.4.100.6:80 [email protected]

No luck. Any tips?

Edit: It turns out the tunnel works, but not for websockets. Connections to ws://localhost:8080 fail with this:

<snip> WebSocket connection to 'ws://localhost:8080/' failed: Error during WebSocket handshake: Unexpected response code: 200

I didn't realize this at first. I thought the connection just hung.

Edit 2: My apologies, but I figured this out. I didn't realize that the app involves 2 servers: nginx on port 80 and a websocket server on port 8080. I created 2 separate SSH tunnels, and all works now. I got confused because the local port I chose, 8080, was also the port used by the remote websocket server.

Summary: nothing special is required to create a SSH tunnel through one-to-one NAT.

ssh nat ssh-tunnel
Martin Hope
royco
Asked: 2017-10-07 16:14:00 +0800 CST
  • 2

I have a LSI MegaRAID controller. I pulled out a failed drive and replaced it with a good one. I didn't run any special storcli commands before this, I just swapped the drives. Unsure if that was a mistake.

It shows up as UGood:

32:8    26 UGood  F 1.818 TB SATA HDD N   N  512B ST32000645NS U  -

I want to add it as a hotspare, but the command fails:

# ./storcli64 /c0/e32/s8 add hotsparedrive
Controller = 0
Status = Failure
Description = Add Hot Spare Failed.

Detailed Status :
===============

------------------------------------------------
Drive       Status  ErrCd ErrMsg                
------------------------------------------------
/c0/e32/s8 Failure   255 Device state invalid. 
------------------------------------------------

What should I set the drive state to first? Should I also initialize the drive?

lsi
Martin Hope
royco
Asked: 2010-03-14 10:31:12 +0800 CST
  • 0

I need to receive SMTP mail and pipe it to a program. Can the IIS SMTP server deliver mail to a script or program?

I've looked on 2008 R2, but don't see an option for this.

EDIT: This is for a company which processes orders via email. I need to pipe those emails to a script which processes the order. I can think of a few ways to accomplish this in the UNIX world, but would prefer a Windows solution for this project.

smtp iis
Martin Hope
royco
Asked: 2009-12-11 14:11:01 +0800 CST
  • 3

I have a CentOS 5.4 system successfully bound to Active Directory. "net ads testjoin" says it's OK. I can run "id username" for AD users and see their accounts. However, I cannot log in remotely via SSH. /var/log/secure says the password is incorrect, but I know it's correct.

I suspect my /etc/pam.d/sshd is incorrect. What should it look like?

Does anything in /etc/security need to be changed?

active-directory