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Sep
15
answered Can you give a user account multiple passwords?
Sep
14
comment How to remove a USB drive without worrying if its been unmounted?
I concur. I also like my answer because it made me think about the design of thumbdrives and how the intentionally cheap USB connector wound up with a completely unanticipated consequence ("What's a thumbdrive?" would have been a utterly valid question in 1995).
Sep
14
answered How to remove a USB drive without worrying if its been unmounted?
Sep
14
comment Communication with MX records
+1 with minor nit: the number associated with an MX entry is a preference not a "cost" where lower numbers have higher preference (so it kinda looks like a cost).
Sep
13
comment Linux EXT 4: How to list files that occupy a block group?
@Ram see "second" in my answer.
Sep
13
revised Linux EXT 4: How to list files that occupy a block group?
added "second"
Sep
13
answered Monitoring file locks, locked using flock
Sep
13
comment How can I recover suspended processes after restarting X?
Given the way xlib works (the actual connection from X client to server) it has historically not had any provisions for reconnection to a new server. Someone may have come up with a mechanism, but since the X connection is stateful, I doubt it.
Sep
13
comment Linux EXT 4: How to list files that occupy a block group?
@Ram see "added" section in my answer.
Sep
13
revised Linux EXT 4: How to list files that occupy a block group?
added "added"
Sep
13
comment Linux EXT 4: How to list files that occupy a block group?
Oh, we's gots block groups, flexible block groups, meta block groups, and probably even twerk block groups for all I know.
Sep
13
answered Linux EXT 4: How to list files that occupy a block group?
Sep
13
comment How to run script using SSH from remote computer and avoid its interruption if remote computer goes offline
+1 And a month or so back I didn't know tmux existed, but after playing with it for a little, seems a bit more usable than the venerable screen.
Sep
13
comment Adding a self-signed certificate to the “trusted list”
All the TLS should be vectored through OpenSSL, so that's the place to look for documentation. In this case: gagravarr.org/writing/openssl-certs/… looks useful.
Sep
12
revised ps output differs when run from command line and from script
edited body
Sep
12
comment How to use 'unsquashfs' with lzma?
The Ubuntu packages are lzma-dev or liblzma-dev not "devel".
Sep
11
comment How to config Postfix to prevent sender spoofing?
So +1 for a worthy question, and it can be done, there are just a bunch of trade-offs and choices that you need to make. This makes answering it here with "do this" kinda tough.
Sep
11
comment How to config Postfix to prevent sender spoofing?
Open mail relays expose a huge hole in the SMTP protocol (which was written when you could trust senders to say who they really were). There are many, long, explanations on how to configure Postfix authentication and all of are too large for StackExchange format.
Sep
11
comment How can I automatically kill the process with the highest CPU load?
The biggest flaw (although the downvote wasn't me) is a conceptual flaw: highest momentary CPU load is a horrible indicator of "badness" and your script is already aware of this with the "don't kill Xorg" bit. If vlc and opensnap are known troubles killall vlc opensnap won't give you the false positives that any script wrapped around top will.
Sep
11
comment How can I automatically kill the process with the highest CPU load?
If you don't care what process you kill, why not just power down the machine and eliminate the guesswork?