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location Dublin, Ireland
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Mar
7
comment default gateway and tracert
Can you send the output of ipconfig /all tracert www.google.com route print J
Mar
1
comment Some DHCP clients end up with wrong DNS server
Do you have any reservations set up? For instance the DHCP server can't give its own address or the address of the gateway to any one can it?
Feb
18
awarded  Commentator
Feb
18
answered smart client for dumb tcp socket?
Feb
18
comment smart client for dumb tcp socket?
Download a tool called socket workbench. You get a 30 day trial which will allow you to do most of what you want. However it is worth while buying if you are doing this stuff alot J
Feb
18
answered Apache won't start after upgrade
Feb
18
answered Multi-homed machine with DHCP on isolated network
Feb
18
comment Exchange Disconnecting on EHLO with remote telnet
Are you telneting to localhost on the server or to the publicly facing IP? J
Feb
18
comment Is it possible to port filter traffic over an outbound VPN connection?
ok first things first; I assume the VPN you are talking about you are using a client on you local machine to connect back into your company. What I mean is you use their (your clients) infrastructure to set up the VPN. For example from their firewall to your company. That way your client can set the rules of the firewall. Second a ssh tunnel is a bit more complicated. And if you don't understand it, it is probably not the best choice for you. May be ask some unix heads in your company. J
Feb
17
answered Is it possible to port filter traffic over an outbound VPN connection?
Feb
17
answered Exchange Disconnecting on EHLO with remote telnet
Feb
17
answered ESX servers in a DMZ
Feb
17
awarded  Supporter
Feb
15
comment ESX servers in a DMZ
I think in one of my other post I said I regret mentioning DMZ as it is confusing the issue. But the fact you can't manage an ESX server via a VPN is pretty brain dead. I thought these sorts of protocols like active ftp that require a back connection died a death ages ago. Ah well I plan to build a Rube Goldberg machine of netcat, reverse ssh tunnels and iptables. J
Feb
15
comment ESX servers in a DMZ
Chris. Management is one thing bit the Cool vCenter features is what I want :) But I have to say it is a brain dead Client Server relationship. If I need to set up site to site VPNS for all of my oracle instances then I....I'm not sure but would be bad :) So I'm off to learn about netcap now...
Feb
15
comment ESX servers in a DMZ
Chris. Your dmz solution is fine however this does not resolve the remote site problem which is the crux of the issue. The core issue is you cannot connect an esx server to a vcenter server via VPN, unless it is site to site VPN which out of the question her. I am begining to regret mentioning a DMZ. The best I can think of involves a reverse ssh tunnel, iptables NAT rule and a netcap udp to tcp bridge. But I am unsure how to string it together. :).
Feb
14
comment ESX servers in a DMZ
Helvick, I Agree, however setting up a vCenter server closer to the location will eventually mean that I will have several vCenter servers each managing 1-2 server. This will be a complete pain and mean I will lose a lot of the functionality that makes vCenter so useful, for example sharing clones across servers etc.
Feb
14
awarded  Editor
Feb
14
revised ESX servers in a DMZ
Adding additional explanation
Feb
14
comment ESX servers in a DMZ
Ok maybe this is the bit that I not explaining well. The DMZ is on a remote site, an entirely independent network (network 1). The vCenter server is on our office lan (network 2). Network 2 can connect to any machine on any port on network 1. But network 1 is not allowed to initiate a connection to network 2. Any traffic destined to network 2 from network 1 gets dropped by the firewall as it is traffic to a non-routable address. The only solution I can think of is setting up a VPN from network 1 to network 2, but this is not acceptable.