Reputation
24,394
Top tag
Next privilege 25,000 Rep.
Access to site analytics
Badges
1 30 58
Newest
 Necromancer
Impact
~1.2m people reached

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
answered What does verify return:1 mean in the openssl output
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.
Dec
31
comment Linux memory fragmentation
@SaveTheRbtz A good reason to use swap on a production system is that it gives the system more options that it will use only if it thinks they are beneficial. Also, it permits modified pages that haven't been accessed in hours (and may never be accessed) to be ejected from precious physical memory. Lastly, it allows the system to sanely handle cases where much more memory is reserved than is used.
Dec
22
awarded  ubuntu
Dec
21
comment Is it possible having two Ethernet connections simultaneously on the same UTP Cat6 cable?
"you will greatly increase interferences and noise between the copper pairs" Do you have any reference for that claim? If that was true, then how would GigE work over the same physical wires?
Dec
12
comment Server exploited, bruteforcing ssh machines. Exploit keeps coming back
It honestly sounds like you've been assigned a security critical task that you're not qualified to do, and you should probably say so.
Dec
11
comment Super confused about possible NAT kerfuffle
When ping doesn't work, you try each of the components of a ping in turn to see which one fails. Does ARP work? Does the ping request go out? Does the destination machine receive it? Does it send a reply?