3,502 reputation
31437
bio website yandex.ru/search
location Russia
age 27
visits member for 5 years, 10 months
seen 9 hours ago

Mad Skillz:

 - Programming
 - System Administration
 - L2/L3/L4 network knowledge
 - FreeBSD and Linux experience
 - Highload passion
 - HPC(GPFS/Infiniband) user
 - IPv6 evangelist
 - nginx fan
 - p2p lover

May
5
reviewed No Action Needed Can't access VPS through Firefox to finish WordPress Install
Apr
26
revised FreeBSD performance tuning: Sysctl parameter, loader.conf, kernel
Formatting, clarifications, thanks and disclaimer
Apr
26
revised FreeBSD performance tuning: Sysctl parameter, loader.conf, kernel
added 273 characters in body
Apr
22
comment ack-grep to ack in ubuntu
Am I the only one who thinks this is not secure?
Apr
8
revised Apache2 reload and System Crash
added 14 characters in body
Apr
8
revised Apache2 reload and System Crash
added 31 characters in body
Apr
8
awarded  Analytical
Apr
8
answered Apache2 reload and System Crash
Apr
3
awarded  Stellar Question
Mar
3
comment Segfault PHP-FPM, Nginx, Freebsd
What is you APC version?
Feb
28
comment Segfault PHP-FPM, Nginx, Freebsd
Also, if you are not confident about debugging C/C++ code then you better off with something like updating APC/php from ports maybe with even slightly different make config
Feb
28
comment Segfault PHP-FPM, Nginx, Freebsd
set sysctl kern.coredump=1 and sysctl kern.corefile="/var/tmp/%U.%N.core" - path should have according permissions (i.e. 1777). Also don't forget to turn them off after debug.
Feb
25
comment Segfault PHP-FPM, Nginx, Freebsd
Turn on coredumps and analyze segfault dump with gdb - for the start simple bt is enough
Feb
25
comment Segfault PHP-FPM, Nginx, Freebsd
Do you use APC (pecl.php.net/package/APC) ?
Feb
7
revised FreeBSD performance tuning: Sysctl parameter, loader.conf, kernel
added KSTACK_PAGES parameter
Feb
5
awarded  Nice Answer
Feb
5
revised Kernel Errors Present: EXT4-fs
proper lkml link
Feb
1
comment Linux process swap usage is greater than the overall system swap usage
Very accurate: one can take a look at man top from Debian/Ubuntu procps package which has patched(./debian/patches/top_1_swap.patch) man page that explains precisely how SWAP is computed in top: manpages.ubuntu.com/manpages/precise/en/man1/top.1.html
Feb
1
answered How to differentiate intentional reboot and power failure from logs
Jan
30
revised Why change net.inet.tcp.tcbhashsize in FreeBSD?
deleted 24 characters in body