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  • 0 posts edited
  • 3 helpful flags
  • 47 votes cast
Mar
20
comment Is it OK to set up passwordless `sudo` on a cloud server?
@nyuszika7h Just stop. What you are describing is just plain bad practice. The "locked out admin" can almost always fire up their IPMI or remote console and login directly as root -- no need to get the provider involved. But that doesn't make the case for allowing direct root access over ssh remotely. If you take this poor practice and implement it on your own personal VPS, fine. When you get into corporate IT; this mindset will get your and your servers into trouble.
Mar
18
comment Is it OK to set up passwordless `sudo` on a cloud server?
@nyuszika7h When logging directly into Root you lose the audit trail, something that EEAA has tried to point out. Yes you can assume you are the only person with the root password or ssh keys, but what if that's not true (someone stole or cracked them)? When in a corporate environment and there's likely several admins, if you allow direct root login, who last logged in? Who's credentials were stolen/compromised? When you force regular user login, then sudo, you know who to go when something stupid was done under root, or who's credentials to revoke if they were leaked.
Jan
26
answered How can I determine the power demand of an HP server's power supply under load?
Jan
21
comment Recovering data from a failed SAS drive? (RAID0…yes, I know)
RAID0 usually means 0 chance of data recovery. Each piece of data is split across the drives to improve performance, but for most files, if you loose half the data, the file is corrupted beyond usability.
Nov
28
awarded  Constituent
Nov
17
awarded  Caucus
Sep
30
accepted Router/Firewall Hardware Failure Testing
Sep
29
comment Router/Firewall Hardware Failure Testing
Since we're out of maintenance contract, and this product is EOS'ed -- I guess follow-up question would be then is 10 years of lifetime reasonable for an appliance firewall/router like this? Or should it last longer/shorter? On the edge of just pulling the trigger and getting something new (not sonicwall).
Sep
29
revised Router/Firewall Hardware Failure Testing
deleted 324 characters in body
Sep
29
asked Router/Firewall Hardware Failure Testing
Sep
19
comment What are the possible issues in using very short DHCP lease time (< 1min)?
you could also just reset/drop all leases from the server after each demo...
Sep
3
accepted BackupPC Taking over 72 hours to backup 250GB's
Jul
24
comment RAID-5: Two disks failed simultaneously?
@Wardy RAID5 or RAID6 does not give the same performance as a RAID10, not even close. RAID5 and 6 get a read boost, but writes takes considerable longer. RAID10 has improved writes and reads. Depends on your expected i/o load. If you are running something write-intensive, such as a VM cluster, then you will benefit immensely from RAID10 in a 0 + 1 configuration. However, since the OP is considering a separate chassis, it's really a backup server with complete data set, so this point is moot.
Jul
24
comment BackupPC Taking over 72 hours to backup 250GB's
you are talking about setting up rsync on the box-to-be-backed-up, and then switch to rsyncd in BackupPC so that box pushes it's data to the backup machine? Or are you saying I should bypass BackupPC alltogether and just rsync the data manually?
Jul
23
comment RAID-5: Two disks failed simultaneously?
@Wardy That is a lot of additional expense just to have a redundant (ie. mirrored) array. Just switch over to a RAID10, you will get much better write performance, plus you can loose half your disks and stay online (depending on which side of the mirrored raid 0's fail). Less cost, better performance.
Jul
23
comment BackupPC Taking over 72 hours to backup 250GB's
@Zoredache hmm, one of the drives on the problem box has: 392,756 files, the other drive has: 615,490 files. So, ya... a lot of files! It did take a while for find . -type f | wc -l to run...
Jul
23
comment BackupPC Taking over 72 hours to backup 250GB's
@Zoredache it's a mix. This box is used as a sort-of low-priority file share for some of the users... they tend to stuff it with a mixture of stuff, lots of directories and directories in directories, etc... filled with everything from excel files, word docs, access db's (varying in size), up to program installer exe's, iso images, etc. I would suppose there are more small files than large though. The small file issue was one of the reasons the internet recommended switching to tar, that it may help... is there a flag or something I should modify?
Jul
23
revised BackupPC Taking over 72 hours to backup 250GB's
added 3 characters in body
Jul
23
asked BackupPC Taking over 72 hours to backup 250GB's
Jul
16
comment Array free space requirement
@MichaelKjörling I think you underestimate my beer-packing capabilities ;-P