Need a high throughput WAN solution? If latency isn't much of a concern, consider IPoAC. Effective throughput can approach 600 Gb/sec (depending on configuration/equipment used). Implementation costs can be under $1000 with ongoing maintenance costs of less than $50/month.
PSEXEC vulnerability! Must-read for admins who use it. Please note that you might not be aware that you use it since it is incorporated into some software products that interact with remote systems, so read it anyway!
0patch has issued a patch, Microsoft has not (yet). Only patches psexec v2.2!
Update: Microsoft released a new patched version. To use it against machines that you used the old version against, you need to launch this command 1st, or it will fail:
net stop psexecsvc & sc remove psexecsvc