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iSCSI target connects but windows shows no volume

[Problem] I configured some iSCSI targets to connect to from an Windows Server 2012R2 and everything went pretty good. Then, the two connected virtual disks disappeared from the windows server, even tho the iSCSI initiator showed them as connected. They were missing in the device manager and disk m...
by gilthanaz
Mon Aug 06, 2018 2:59 pm
 
Forum: Knowledge Base
Topic: iSCSI target connects but windows shows no volume
Replies: 0
Views: 1359

[Windows] Copy directory structure only

[Problem] I want to create an exact copy of the directory structure of drive to another drive, without copying any files. "xcopy" has failed the job because some path names are longer than 255 chars (this triggers an out of memory error). [Solution] More recent versions of windows come wi...
by gilthanaz
Mon Jul 09, 2018 3:27 pm
 
Forum: Knowledge Base
Topic: [Windows] Copy directory structure only
Replies: 0
Views: 1278

[Windows] iSCSI initiator not working

[Problem] I was configuring iSCSI targets using tgt / tgtd on Ubuntu Server 18.04 and wanted to connect to them from a windows machine. Linux machines could connect without issues already so I did not expect any problems. Well... the windows machines did not connect with the error "The target ...
by gilthanaz
Thu Jul 05, 2018 5:56 pm
 
Forum: Knowledge Base
Topic: [Windows] iSCSI initiator not working
Replies: 0
Views: 1452

Samba: PANIC (pid #): Bad talloc magic value - access...

[Problem] Today I did set up a minimal samba config for quick file transfer as I've done dozens of times already. To my surprise, when trying to connect from a windows box to the showing share, I got an access denied error. The log files on the samba server showed a long stack trace, so apparently ...
by gilthanaz
Sun Dec 17, 2017 12:59 am
 
Forum: Knowledge Base
Topic: Samba: PANIC (pid #): Bad talloc magic value - access...
Replies: 0
Views: 1355

Ubuntu 16.04 - "IOException: Too many open files"

[Problem] Starting a service using "sudo service <servicename> start" or the service automatically starting after a reboot fails or is semi successful. Especially the latter is very nasty: I ran a "7 Days to Die" server that appeared to be up, but any players who wanted to conne...
by gilthanaz
Fri Oct 06, 2017 4:50 pm
 
Forum: Knowledge Base
Topic: Ubuntu 16.04 - "IOException: Too many open files"
Replies: 0
Views: 1552

Re: ifup: "SIOCSIFFLAGS: Cannot assign requested address"

I recently learned that ifconfig is considered deprecated and replaced by 'ip' in the near-middle future, so try to use that instead :)

https://serverfault.com/questions/45862 ... 639#458639

http://andys.org.uk/bits/2010/02/24/ipr ... -ifconfig/
by gilthanaz
Thu Jun 15, 2017 3:44 pm
 
Forum: Knowledge Base
Topic: ifup: "SIOCSIFFLAGS: Cannot assign requested address"
Replies: 1
Views: 2555

Re: Xubuntu 16.04 + Java9:

Have you tried:

Code: Select all
$ sudo apt-get purge <packagename>
$ sudo apt-get autoremove
$ sudo apt-get autoclean
by gilthanaz
Mon Jan 09, 2017 10:57 pm
 
Forum: Knowledge Base
Topic: Xubuntu 16.04 + Java9:
Replies: 1
Views: 2028

Re: HowTo: increase badblocks speed for 4k disks

You're perfectly right! That badblocks as a burn-in test is also kind of testing the whole signal-chain and surrounding hardware is indeed a good argument. So badblocks might not be needed for most modern filesystems but still has it's value when testing how everything works together :)
by gilthanaz
Mon Jan 09, 2017 10:54 pm
 
Forum: Knowledge Base
Topic: HowTo: increase badblocks speed for 4k disks
Replies: 3
Views: 2991

Re: Linux & CT2-4400: unknown chip version Si2143-\xffffffea

AFAIK the CT2-4400 requires at least Kernel 3.15+ and Xubuntu 14.04 comes with 3.13 - probably try with 16.04 or see if you can do a kernel upgrade on 14.04 to get a 3.5+ or 4.x kernel Ah, here the details: "Drivers are included in kernel 3.17 (for version 1) and 3.19 (for version 2). They can ...
by gilthanaz
Tue Dec 27, 2016 4:14 am
 
Forum: Knowledge Base
Topic: Linux & CT2-4400: unknown chip version Si2143-\xffffffeaD
Replies: 1
Views: 2014

Re: HowTo: increase badblocks speed for 4k disks

Running badblocks on newer disks is pretty obsolete: Modern disks often have a controller and a "spare blocks/sectors" area that will have them remap any bad blocks they encounter while normal operation without the users (and the OS!) even noticing... So you'll most likely get a OK result ...
by gilthanaz
Mon Dec 19, 2016 5:11 pm
 
Forum: Knowledge Base
Topic: HowTo: increase badblocks speed for 4k disks
Replies: 3
Views: 2991

Re: Proxmox, ZFS: trouble witing out superblocks. Error 144

Proxmox really feels very unstable/incomplete/incompatible compared to other VM Host solutions :/
by gilthanaz
Mon Dec 19, 2016 5:05 pm
 
Forum: Knowledge Base
Topic: Proxmox, ZFS: trouble witing out superblocks. Error 144
Replies: 1
Views: 2890

Re: Basic rsyncd.conf

* If you use rsync to sync dirs like /etc you must specify uid/gid = root. Else you get silent ignores of everything the default rsync user has no access rights to :) You should know about security issues when doing that. It's hard to find out your /etc backup never really worked when you want to re...
by gilthanaz
Mon Dec 19, 2016 4:55 pm
 
Forum: Knowledge Base
Topic: Basic rsyncd.conf
Replies: 1
Views: 2080

Re: Samba: names displayed as uppercase 8.3 random character

WTF I've never seen this happen in a decade of using samba O.o
by gilthanaz
Mon Dec 19, 2016 3:39 pm
 
Forum: Knowledge Base
Topic: Samba: names displayed as uppercase 8.3 random characters
Replies: 2
Views: 2434

High apache2 server load because of "semrush" bot

[Problem] We've had an Apache2 server behave a bit weird lately, e.g. long loading times or capacity warnings. Checking the logs showed that a "semrush bot" was scanning all sites without any limits at maximum bandwidth. It appears to be some kind of marketing bot, and trash like that has...
by gilthanaz
Mon Dec 19, 2016 3:35 pm
 
Forum: Knowledge Base
Topic: High apache2 server load because of "semrush" bot
Replies: 0
Views: 1528

Windows 8.1 - No login screen on boot, only shutdown button

[Problem] Windows 8.1 is not booting correctly - it shows a screen with the "shutdown/restart" button bottom right and another button for screen tools bottom left. There is no login prompt and all the shortcuts don't work (e.g. to bring up task manager or explorer, ...) [Solution] That on...
by gilthanaz
Thu Nov 10, 2016 4:32 pm
 
Forum: Knowledge Base
Topic: Windows 8.1 - No login screen on boot, only shutdown button
Replies: 0
Views: 2683
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