565 reputation
210
bio website zlynx.org
location Greenwood Village, CO
age 40
visits member for 5 years, 6 months
seen Dec 21 at 2:08

Nothing interesting about me. This is not the user you are looking for. Move along. Move along.


Dec
13
comment How do I speed up and cache mmap file access over NFS on Linux?
Sequential read/write runs at 80MB/s per second, so that part of the NFS tuning is okay.
Dec
13
awarded  Student
Dec
13
asked How do I speed up and cache mmap file access over NFS on Linux?
Nov
30
comment In TCP/IP terms, how does a download speed limiter in an office work?
@TessellatingHeckler: The method that I like also enables the use of ECN which actually does tell the sending server to slow down without dropping packets. This method is to apply the rate limiter such as RED to packets leaving on the LAN interface, instead of trying to use an ingress filter on the WAN interface.
Nov
23
comment Networking Units: Not getting expected performance from 100Mb Ethernet
@MarkM: If you look at the reviews of NAS equipment, you will find that 40/20 MB/s is not an unusual speed.
Nov
23
comment Hot spare or extra parity drive in RAID array?
+1: I agree. I see no reason to use RAID-5 when RAID-6 is available. Benchmark the hardware. It should be able to do RAID-6 at full speed, or nearly.
Nov
23
revised Networking Units: Not getting expected performance from 100Mb Ethernet
Fix 10x faster to say faster and can reach the NAS speed.
Nov
23
comment Networking Units: Not getting expected performance from 100Mb Ethernet
@Sirex: Oh well, yes that is true. But the network will be 10x faster.
Nov
23
answered Networking Units: Not getting expected performance from 100Mb Ethernet
Nov
23
comment What happens when a consumer switch receives a VLAN-tagged Ethernet frame?
Eh. Linux end-point devices handle tagged frames just fine. I have seen them do it.
Nov
18
comment Copy large files to multiple machines on a LAN
@user606723: Doesn't everything modern? Maybe some consumer junk does not, but I haven't run into anything with broken multicast in a while. Too much uses it these days. I think Windows Active Directory even uses multicast.
Nov
7
comment What is ECC ram and why is it better?
@JeffAtwood: And, like everyone I am sure, I've occasionally had to reinstall an application (Office. Visual Studio.) because it has apparently gone insane. App bug or ECC error causing a corrupt disk file? Who knows if you don't have ECC?
Nov
7
comment What is ECC ram and why is it better?
@JeffAtwood: Nothing usually, but I have had the occasional blue-screen for no apparent reason. On systems I have which do have ECC I will see a couple of single bit errors each month.
Oct
28
answered Is there a good way to keep IPv6 multicast packets off WiFi?
Oct
28
comment Is there a good way to keep IPv6 multicast packets off WiFi?
If it is multicast packets then why is the wifi sending them? It should only be sending a multicast packet to a network if there is someone listening for it on that network.
Oct
28
comment Linux IPv6 Transparent Proxy (but Linux doesn't support NAT on IPv6!?)
@coredump: Because transparent "Just Works" while automatic proxy only sometimes works and the users think the internet is broken.
Oct
28
comment Will everyone having Globally Accessible IP's in IPv6 be kind of a security nightmare?
@JohnGardeniers: Your concern is why IPv6 added temporary private addresses. Windows uses them by default. What it does is outgoing connections use a randomized temporary address. Incoming connections can connect to the permanent system address if you have publicized it.
Oct
19
comment How do you make it obvious you are on a production system?
#1 is an interesting idea but impractical because scripts running as daemon users might need to use rm, chmod, etc.
Oct
19
comment How do you make it obvious you are on a production system?
@symcbean: that is not what Sionide said. He could have meant after you SSH into your user account.
Oct
10
comment Make a program un-uninstallable by Local Admin
Agreed that the problem is users having admin. On the other hand, I would not want to work anywhere that won't let me have admin on my workstation.