Reputation
643
Top tag
Next privilege 1,000 Rep.
See votes, expandable usercard
Badges
3 11
Newest
 Yearling
Impact
~55k people reached

  • 0 posts edited
  • 1 helpful flag
  • 245 votes cast
Jan
28
comment How to find what processes were running at a time in the past?
@Shiv: Unless you had something running to record them in the past, there is no way to get that information now. So the only way to get what you want in the future is to install something now, like atop, or run a custom shell script from cron. Or I suppose you could download atop, configure it to run in your user directory and run it from there, if you really cannot install system packages.
Jan
9
comment Iptables are blocking WildFly10 on CentOS 7
I believe that the old style iptables-save init scripts still work. I would edit those then do a restore.
May
13
awarded  Yearling
May
13
answered Preventing theft of data on remotely deployed servers exposed to physical access
May
13
comment Preventing theft of data on remotely deployed servers exposed to physical access
@André: Not exactly easily, but yes. Even systems like the Xbox 360 got cracked. Not sure about the Xbone.
Feb
24
comment Linux: ps command's output is randomly different than expected, can you find the reason?
It works for me. Tested on Ubuntu 14 LTS and Fedora 21. Maybe CentOS 6 is just too old. I didn't realize it was a new thing.
Feb
24
comment Linux: ps command's output is randomly different than expected, can you find the reason?
Instead of etime use etimes. Put the s on the end.
Feb
7
awarded  Nice Answer
Jan
19
comment Although 80 and 443 are system ports, how are most web servers able to bind to them anyway?
On Linux you can also apply CAP_NET_BIND_SERVICE capability to the program or you can use iptables to redirect a system port to a regular port.
Jan
5
comment Linux: ps command's output is randomly different than expected, can you find the reason?
You have your answer. What you didn't ask was how to do this better. Use etimes to get seconds. Then you have no weird parsing of the time to do.
Dec
5
comment Linux - Is there a way to prevent/protect a file from being deleted even by root?
Taking this a bit further, you can use squashfs or cramfs which are compressed and read-only. It needs a special tool to build the filesystem.
Nov
22
comment Write caching in linux
I am not sure about Windows but Linux may defer non-sync writes up to the sysadmin's configured time. Defaults are 5 or 60 seconds depending on the filesystem.
Nov
22
comment Would the data on the RAID Card Cache and Drive Cache be lost when a kernel panic happens?
The machine's power distribution board or motherboard might also fail. Although personally I've seen more RAID card failures.
Nov
18
comment TCP Dump, cannot understand these 4 lines?
That can also be caused by a messed up router/firewall. See lwn.net/Articles/92727
Aug
16
awarded  Citizen Patrol
May
22
comment Packet loss on between firewall and uplink?
I've seen these intermittent problems caused by either bad cable or failing ports combined with link autonegotiation. It glitches and thinks it is 10Mbit half, for example. It might work fine forever just by forcing the connection type. Remember to do both ends.
May
22
answered Why drop caches in Linux?
Apr
15
comment 4TB drives using an ARC-1231 controller?
@StefanLasiewski: A new RAID controller is as likely to fail as an older one. If really new, even more likely.
Apr
9
answered Guaranteeing Shell Responsiveness on Pegged System
Apr
9
comment Why is 1 of my 24 CPUs Pegged at 100%?
Couldn't that also be a driver bug or a piece of bad hardware interacting with a driver with no error recovery? Or maybe software calling into the kernel in a tight loop.