Reputation
24,359
Top tag
Next privilege 25,000 Rep.
Access to site analytics
Badges
1 30 58
Newest
 Necromancer
Impact
~1.2m people reached

Feb
2
comment Why does a URE cause loss of array during RAID 5 rebuild?
@StrongBad It doesn't make things worse. You're describing a process that requires figuring out which files are affected, restoring those specifically, determining whether the medium is still reliable, and so on -- all before you can resume operation. The whole point of RAID is to minimize this time and risk. Doing a full restore/rebuild is almost always faster and safer.
Feb
1
comment SSL encryption with CNAME redirect
What do you mean by "which server"? There's only one server in your architecture.
Feb
1
comment port listening in netstat can't telnet
Show us the hadoop config the causes the port to be listened on.
Feb
1
comment port listening in netstat can't telnet
What is listening on port 8020?
Jan
27
comment Top - what does Virtual memory size mean? …linux/ubuntu
This answer spreads the misconception that virtual memory is the same as swapping or paging. Using disk as an extension of RAM predates virtual memory. And there are lots of systems (such as most SoHo routers) that have virtual memory but do not use disk as an extension of RAM. (And this is not the answer to the OP's question either, since he's not using any swap.)
Jan
25
comment UDP destination address during port forwarding?
It's very unlikely that you're going to get this to work the way you want.
Jan
25
comment IP Conflicts from mikrotik router for multiple ip addresses (that it isnt assigned)
Is the point-to-point wireless connection acting as a bridge? Or what?
Jan
11
comment Packets in bridge get up to the user space without being redirected there
What do you mean by "an application with a TCP listener on port 80"? Do you just mean that a regular TCP socket bound to port 80 on which you called listen? Or something else?
Jan
8
comment Are HDD <-> SSD transfer speeds completely bottlenecked by HDD speed?
@penu It makes a huge difference. With lots of small files, HDD performance is dominated by seek time. With large files, HDD performance is dominated by transfer time. Whether OS or filesystem matters depends a lot on the specifics of the setup and at least knowing the OS, we'd know which questions to ask.
Jan
8
comment Are HDD <-> SSD transfer speeds completely bottlenecked by HDD speed?
@penu You could start by specifying the type of transfer. Are we copying lots of small files? Are we copying one large file? You could specify filesystem or OS. You could specify specific SSDs or HDDs.
Jan
8
comment ARP behavior in Linux
Can either host ping the switch?
Jan
7
comment how to give subnets for IP addresses in rewrite condition?
Rather than asking for help implementing a specific solution to your problem, tell us what your problem is. Why do you want to do this? What problem will it solve?
Jan
7
comment Can Cat6A connector fit to normal gigabit network switch?
If the connector is an RJ45 connector, it will connect to a standard jack. If not, not.
Jan
7
comment Netcat - socket in time_wait when echoing and piping, but not when invoked directly
What's the point of both piping something to nc and redirecting its input from /dev/null?
Jan
7
comment Netcat - socket in time_wait when echoing and piping, but not when invoked directly
Pass it --send-only, I think.
Jan
6
comment Low iops,read and write performances
Hard to comment on results we can't see.
Jan
5
comment Centos clear swap usage
Can you fix Nagios so it doesn't trigger the false alerts? Clearly, the amount of used swap can't actually be greater than the total swap.
Jan
5
comment Centos clear swap usage
What is the actual problem you're trying to solve?
Jan
3
comment UPS Requirements - Max load or actual load?
You mean maximum, not average. The UPS has to be able to handle the peak load that you experience.
Jan
2
comment Avoid SSL warning when certificate is issued for root domain only
If there were such a way, that would be a huge security hole. A person who punches https://www.domain.com/ into their browser should either get something that can prove it's www.domain.com or it should get a security error. they should definitely not get some other site without a warning.