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Jun
26
awarded  Notable Question
May
4
comment Very low TCP OpenVPN throughput (100Mbit port, low CPU utilization)
@ElliotB. Sorry for the noise, I failed to hit the show all comments link. I'll delete my comment.
Feb
25
comment Samba - Users can't write to dirs not created by themselves
@dotnix Interesting, did they replace it with something?
Dec
29
comment Troubleshooting unusual server room power issue. (Suspected power surges or spikes)
I'd suggest hiring someone to measure the power quality, they can probably bring equipment able to diagnose and detect the problem even when it isn't enough to reboot the room.
Dec
1
awarded  Self-Learner
Nov
24
awarded  Caucus
Nov
21
awarded  Popular Question
Oct
30
awarded  Yearling
Jul
21
comment Should I avoid putting two SSDs in a RAID1 configuration due to performance degradation?
If you're really worried about it, you could use mdadm -C --assume-clean... to avoid the initial sync. At least with RAID-1.
Jul
2
awarded  Curious
May
30
awarded  Revival
May
5
comment How to hide a password passed as command line argument?
Or if you're using bash, put ignorespace in $HISTCONTROL, and then you can prevent any command from going into the shell history by prefixing the command with a space.
Apr
23
comment What does 'http: getaddrinfo*.gaih_getanswer: got type “46”' mean
See sourceware.org/bugzilla/show_bug.cgi?id=14841 It's getting confused because it got a DNSSec response as well. (old question, but as I landed here with Google, putting a pointer for the next person).
Feb
27
comment How many IOPS do I need? My workload bottleneck is storage
I'm not sure how we can even hope to answer without knowing what services you're trying to run, how many users, etc...
Jan
27
comment Can a program tell it is being run under sudo?
... or, alternatively, perl -E 'say $<, "\n", $>'
Jan
27
comment Can a program tell it is being run under sudo?
Nope, sudo sets both the effective and real id. As opposed to suid, which does not. Here is a trivial C program you can use to test (sorry, the comment will remove newlines, you'll have to add them back): #include <stdio.h> #include <unistd.h> #include <sys/types.h> int main() { printf("real = %i, effective = %i\n", getuid(), geteuid()); return 0; }
Dec
9
comment Why running named(bind) in chroot is so important for security? Or maybe it is not ?
You're correct its much improved. Basically, bind8 was a nightmare; bind9 isn't. E.g., if you search the NVD, I don't see any remote code execution bugs listed, at least since 2010 (as far back as the search went): web.nvd.nist.gov/view/vuln/… ... plenty of DoS bugs, and also a few information disclosure bugs (e.g., disclosing internal zones).
Oct
29
comment How to read oom-killer syslog messages?
You've run out of memory somewhere, though I have no idea where (I'm not that good at reading the kernel output). I think you've hit a weird kernel bug, honestly.
Oct
12
comment LSI 3Ware tw_cli and tdm2 segfault with Debian Linux kernels after 3.8
Indeed, I'd expect it to break update-initramfs, and possibly all kinds of things (e.g., modprobe). I've thought of a better solution—ptrace—writing a program for it now... Hopefully I can get this to work.
Oct
10
comment LSI 3Ware tw_cli and tdm2 segfault with Debian Linux kernels after 3.8
Thank you, you saved me having to figure out how to write kernel modules (and remember enough C) to write my own. Suggest you might want to put this somewhere more permanent, to help out other 3ware sufferers...