10,380 reputation
1257130
bio website stefanco.com
location Berkeley, CA
age
visits member for 5 years, 1 month
seen 16 mins ago

profile for Stefan Lasiewski on Stack Exchange, a network of free, community-driven Q&A sites
Stefan Lasiewski

Daddy, Linux Guy, Bicyclist, Tinkerer, Fixer & Breaker of things.

I work as a Senior Server Team Engineer at the National Energy Research Scientific Computing Center (NERSC) Division at Lawrence Berkeley National Laboratory (LBNL) in Berkeley, CA.

Father of 3 cute children. Yes I'm a sysadmin and a parent.

Heavy user of CentOS, RHEL & FreeBSD for production services at work. I also run Ubuntu at home, for the simplicity. I'm a fan of Apache HTTP Server, Nagios & Cacti.

Original proposer of unix.stackexchange.com (Yes, this proposal predated askubuntu.com, and I wish they would have merged with the Unix proposal.).


52m
comment SSH-forwarded X11 display from Linux to Mac lost after some time
This does explain why the problem happens, but some reasoning would be helpful.
23h
comment There is a kernel panic after every few months or weeks, with qemu-kvm tainted, VMs can't run. The machine needs to be rebooted
CentOS 6.4 was released 2 years ago. CentOS 6.5 was released over a year ago. Many many bugs have been fixed since then, including a number of important security bugs.
Mar
23
comment How can I validate a ZFS snapshot image residing on a backup system?
Glad I could help. ZFS is a great filesystem, but finding good examples outside of the Solaris docs can be hard.
Mar
19
awarded  Nice Answer
Mar
18
comment Seconds_behind_master value keeps on increasing in MySQL replication slave
MySQL 5.0 reached it's end-of-life some time ago, and the latest MySQL 5.0 release is 5.0.96 (you have MySQL 5.0.77). Many replication bugs have been fixed since MySQL 5.0.77, and replication performance has improved quite a bit since even MySQL 5.1. There area many reasons for MySQL replication delays in older versions of MySQL.
Mar
17
accepted How can I validate a ZFS snapshot image residing on a backup system?
Mar
17
revised How can I validate a ZFS snapshot image residing on a backup system?
added 321 characters in body
Mar
14
answered How can I validate a ZFS snapshot image residing on a backup system?
Mar
13
asked How can I validate a ZFS snapshot image residing on a backup system?
Mar
10
comment freebsd cannot start mysql for the first time
The permissions 1777 are way too permissive and should only be used temporarily, and should generally be avoided. Leaving those in place for a long time is a security problem.
Mar
7
awarded  Popular Question
Feb
27
awarded  Popular Question
Feb
26
awarded  Yearling
Feb
15
awarded  Taxonomist
Feb
12
awarded  Famous Question
Feb
3
awarded  Popular Question
Feb
3
awarded  Popular Question
Jan
27
comment Linux tool/command to check file system performance
Running dd ... && sync has the advantage that it works on multiple operating systems, beyond just GNU/Linux.
Jan
26
comment Can OpenSSL be used to debug an SSL connection to a MySQL server?
Hm, I suppose the behavior I'm talking about is how STARTTLS works, according to en.wikipedia.org/wiki/STARTTLS .
Jan
23
comment Google apps won't let go of my email after canceling account
Remember -- at some point, you modified your DNS records to use Google. Undo that step.