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Mar
27
comment Login without running bash_profile or bashrc
@Silvio, OP's answer is that he used an exploit not related to SSH.
Dec
9
comment How to forcibly close a socket in TIME_WAIT?
@EJP Failing early is almost always the right call. Networking isn't reliable, and fighting that will slow things down. A crashed app can't assume that any data made it out safely.
Nov
13
comment SMART short offline test never ends for all drives of a RAID1
Other explanations: superuser.com/questions/766943/smart-test-never-finishes
Jan
30
comment On Ubuntu 11.10, is it possible to decrypt 2 hard disks encrypted with LUKS / LVM by entering only one passphrase at boot?
askubuntu.com/a/204189
Dec
11
comment How to work around an uncooperative HTTP Proxy?
That's an intercepting proxy; transparent is this.
Mar
19
comment Dump a linux process's memory to file
This one is obsolete (removed at maintainer's request); I installed the old package anyway and it failed with "Input/output error; did you use GCC with another machine's header files?".
Mar
19
comment Dump a linux process's memory to file
That's not sufficient, reading another process needs a combination of /proc/<pid>/{mem,*maps}, ptrace, and some signal handling to avoid hanging the target process.
Mar
4
comment LVM dangers and caveats
If you create snapshots from a recent lvm with thin logical volumes (lvcreate --thin), snapshots will use the "multisnap" implementation which shouldn't degrade write performance of the original volume.
Nov
23
comment How can I list all installed packages from lenny-backports?
@thomas, ~S is like a simple and. It's every other aptitude operator (intersection, etc) that erases the version before computation.
Nov
6
comment Home-brew automatic tiered storage solutions with Linux? (Memory -> SSD -> HDD -> remote storage)
Here's a bit of more positive feedback though: permalink.gmane.org/gmane.comp.file-systems.ceph.devel/8316
Nov
6
comment Home-brew automatic tiered storage solutions with Linux? (Memory -> SSD -> HDD -> remote storage)
Also worried that he suggests raid as the solution, when experimental software needs backups most.
Nov
6
comment Home-brew automatic tiered storage solutions with Linux? (Memory -> SSD -> HDD -> remote storage)
Using network filesystems for this isn't a bad idea, they tend to mature much faster than kernel patchsets. I wonder if Ceph or DRBD have useful modes for tiered storage.
Nov
6
comment Home-brew automatic tiered storage solutions with Linux? (Memory -> SSD -> HDD -> remote storage)
I'm worried that this guy wants to reduce redundancy for the sake of extra capacity (especially when SSDs are comparatively small and unreliable).
Nov
4
comment Linux/Debian - What does 'pee' in moreutils do?
@Arioch, the bash syntax won't work with the hooks-joker technique. Just install moreutils.
Nov
3
comment Free tiered storage automation in linux?
Thank you, thank you! Looks like I won't have to wait for bcache's slow march towards the mainline after all.
Oct
31
comment Break all hardlinks within a folder
It's normal that the file exists, you just created it with tempfile (nb: deprecated in favour of mktemp, but that's not what caused your problem).
Oct
11
comment Which metric should I use to determine when a server is low on memory?
Committed_AS is a theoretical estimate, it doesn't relate to memory pressure but to the possibility of an OOM condition that doesn't really happen in practice.
Oct
11
comment Which metric should I use to determine when a server is low on memory?
Here is one way to detect memory pressure (from /proc/meminfo and /proc/vmstat): stackoverflow.com/a/3031924
Oct
11
comment Find out what's running wget on my server
atop's service mode can help answer "what was running back during that ten minute slice" questions.
Dec
4
comment How do I prevent accidental rm -rf /*?
mv -t DELETE_ME -- * is a bit more foolproof.