Lekensteyn

Netherlands

https://lekensteyn.nl/

Former Kubuntu desktop user, now using Arch Linux. Open-source enthusiast, programmer. TRU/e Security master student at TU/e.

Interests: network protocols, Linux kernel, server administration, Android, breaking & fixing stuff.

top accounts reputation activity subscriptions

How do I retrieve the public key from a SSH private key?

command-line ssh asked Jul 18, 2011 at 9:57

askubuntu.com

497 votes

How do I remove a user from a group?

users group asked Jan 20, 2012 at 16:29

unix.stackexchange.com

235 votes

What is "umask" and how does it work?

permissions umask asked May 22, 2011 at 20:42

askubuntu.com

146 votes

How to create a restricted SSH user for port forwarding?

ssh security port-forwarding asked Jun 10, 2011 at 20:04

askubuntu.com

88 votes

How can I safely remove a SATA disk from a running system?

ssd sata hot-plug disk asked Jul 18, 2012 at 20:04

unix.stackexchange.com

83 votes

Is there an apt command to download a deb file from the repositories to the current directory?

apt packages asked Mar 15, 2011 at 13:17

askubuntu.com

75 votes

What is the recommended way to empty a SSD?

ssd trim asked May 12, 2011 at 14:01

askubuntu.com

73 votes

What clients are proven to be vulnerable to Heartbleed?

ssl heartbleed asked Apr 9, 2014 at 14:08

security.stackexchange.com

72 votes

Why has /var/run been migrated to /run?

filesystem asked Aug 16, 2011 at 9:08

askubuntu.com

66 votes

How to diff files ignoring comments (lines starting with #)?

regular-expression diff asked Jul 20, 2011 at 13:05

unix.stackexchange.com

Top Answers

868

How do I retrieve the public key from a SSH private key?

askubuntu.com

733

How do I use variables in a sed command?

askubuntu.com

710

How do I free up more space in /boot?

askubuntu.com

656

How to reload a page using JavaScript

stackoverflow.com

626

What does "cp: omitting directory" mean?

askubuntu.com

550

How to check if a command succeeded?

askubuntu.com

457

How do I check the battery's status via the terminal?

askubuntu.com

403

Any way to search for text within nano?

askubuntu.com

397

What's a command line way to find large files/directories to remove and free up space?

askubuntu.com

353

ssh: automatically accept keys

askubuntu.com

343

How do I provide a username and password to wget?

askubuntu.com

313

SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0

stackoverflow.com

298

Correct way to delete cookies server-side

stackoverflow.com

297

How to add SSH Keys to authorized_keys file?

askubuntu.com

277

How to avoid using sudo when working in /var/www?

askubuntu.com

258

How can I find what video driver is in use on my system?

askubuntu.com

257

Regular expression: find spaces (tabs/space), but not newlines

stackoverflow.com

246

How to enable mod_rewrite in Apache?

askubuntu.com

245

How do I install svn?

askubuntu.com

244

Error message "sudo: unable to resolve host (none)"

askubuntu.com

218

How to create a restricted SSH user for port forwarding?

askubuntu.com

215

How to use "grep" command to find text including subdirectories

askubuntu.com

214

Is Logitech's Unifying receiver supported?

askubuntu.com

211

mysql check collation of a table

stackoverflow.com

205

Does ssh key need to be named id_rsa?

askubuntu.com

204

Is there a way to create a function from a string with javascript?

stackoverflow.com

195

Why does find -exec mv {} ./target/ + not work?

stackoverflow.com

181

How do I install a .tar.gz (or .tar.bz2) file?

askubuntu.com

172

How do I show apt-get package management history via command line?

askubuntu.com

166

How can I access Apache (on VirtualBox guest) from host?

askubuntu.com