mattdm

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I'm the Fedora Cloud Architect at Red Hat.

I've been using Linux and Unix professionally since 1995, mostly in Linux-related sysadmin/systems architect jobs supporting academia. I generally know my stuff, but am very happy to learn something new and to be corrected when I'm wrong.

Fedora Cloud


116 Answers

newest activity votes
70
Which is the safest way to get root privileges: sudo, su or login?
mar 4 '11 at 18:20
39
Why do we use “./” to execute a file?
dec 1 '10 at 4:03
33
Does LVM impact performance?
feb 9 '11 at 5:00
25
Why does Linux scale so well to different hardware platforms?
feb 18 '11 at 3:43
20
Reserved space for root on a filesystem - why?
feb 24 '11 at 15:02
20
How to check how long a process has been running?
feb 22 '11 at 21:20
19
How to make Fedora user a sudoer?
dec 1 '10 at 3:54
19
Are there any Linux distros aimed specifically at being Linux tutorials?
mar 17 '11 at 0:53
15
Faster way than ping for checking if computer online?
feb 17 '11 at 15:23
11
Why should I use Debian 6 with FreeBSD kernel?
mar 19 '11 at 16:13
10
How does bash interpret the equal operator with no surrounding spaces in a conditional?
feb 18 '11 at 20:52
9
View Script Over SSH?
dec 13 '10 at 2:53
8
Why does rsync fail to copy files from /sys in Linux?
apr 24 at 18:20
8
How do I time a specific command?
apr 6 '11 at 13:21
8
last time file opened
mar 8 '11 at 15:15
8
What Linux distribution(s) contribute the most development to the GNOME project?
mar 7 '11 at 19:40
7
Why do we need an expiration period?
may 14 '12 at 16:41
7
Where can I find the source code for `uptime`?
mar 15 '11 at 17:29
7
How can I increase open files limit for all processes?
mar 9 '11 at 17:53
7
How do I disable remote root login via ssh?
mar 9 '11 at 0:30
7
Give a warning when something is about to be deleted (by root)
mar 1 '11 at 14:29
7
Why do some regex commands have opposite intepretations of '\' with various characters?
feb 17 '11 at 20:42
7
Difference between ' and " on command line (bash)?
feb 17 '11 at 14:34
6
Batch delete exif info
may 16 '11 at 13:49
6
RPM subpackage name
apr 22 at 14:35
6
Why are PATH variables different when running via sudo and su?
mar 5 '11 at 15:19
6
Is NFS secure over internet?
may 29 '11 at 21:39
6
Which version of X introduced feature Y?
mar 23 '11 at 9:21
6
Is it possible to simulate “no external access” from a Linux machine when developing?
mar 21 '11 at 15:20
6
Why does my sudo ask for password only once but evaluate thrice?
mar 15 '11 at 2:25
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