Category: storage / NAS / QNAP

Samba4 on CentOS7 in under 10min – add windows file sharing user script – security – from SMB 1.0 to 2.0 – anti ETERNALBLUE EXPLOIT update trouble – SID “username” is not in a valid format – pdb_getsampwnam (tdb) error fetching database – solved
19.04.2018

update: 2019-02: everything was fine… until you decided to update because of the EthernalBlue exploit THAT ALSO AFFECTS OPEN SOURCE IMPLEMENTATIONS OF SMB 1.0! (WTF!? WHY?), samba now miss behaves on Debian and CentOS. (scroll down for details) EternalBlue, sometimes […]

31.01.2018

REM delete all mapped network drives net use * /DELETE /Y REM map two drives net use W: “\\192.168.0.233\SharedFolderA” /persistent:yes /user:usernameA PaSsWorDA net use T: “\\192.168.0.231\SharedFolderB” /persistent:yes /user:usernameB PaSsWorDB what you need to know: windows CAN NOT establish two connects […]

19.12.2017

You might want to checkout very basic sequential write/read benchmark with dd. You might want to checkout iozone in c harddisk benchmark. this benchmark is especially useful if you need to measure how java is performing on your harddisk/filesystem/os (linux […]

Howto install and setup SMB File Sharing Server (dance Samba) with GNU Linux
04.08.2017

the best about samba: thanks for samba, it provides users with a fast (of course depends also on harddisk speed) rock-solid no-limit-to-maximum-users file-server for maximum file-transfer-and-sharing-and-storage productivity (and they will USE that T: temp drive for EVERYTHING! prepare for TERRABYTES […]

debian9 stretch – basic web based ressource monitoring with collectd
17.07.2017

checkout the tutorial: http://jperrin.org/centos/monitoring/grafana/keeping-an-eye-on-centos-performance-with-grafana/ maybe cacti and co is too complicated and looks a little outdated… collectd might be just what you are looking for 🙂 “The main objective of this is to develop an easy to use and customizable […]

14.07.2017

The Enterprise Volume Management System (EVMS) Project has the goal of providing unparalleled flexibility and extensibility in managing storage. It represents a new approach to logical volume management for Linux. The architecture introduces a plug-in model that allows for easy […]

10.07.2017

you should setup harddisk encryption during setup. to add an encrypted /home partition afterwards might be possible but a lot more effort. scroll very down if you want to know how to encrypt an usb sticks … needless to say […]

07.07.2017

btrfs is used by SUSE12 for the /root partition – where it is doing daily snapshots of the installed OS. It has more functionality built-in than just storing files. This article wants to take btrfs for a test-drive. Video Tutorials: […]

06.07.2017

can be easily checked via: root@debian9:~# cat /proc/filesystems nodev sysfs nodev rootfs nodev ramfs nodev bdev nodev proc nodev cpuset nodev cgroup nodev cgroup2 nodev tmpfs nodev devtmpfs nodev debugfs nodev tracefs nodev securityfs nodev sockfs nodev bpf nodev pipefs […]

gnu linux server and partitioning – stability and security
19.05.2017

yeah one knows sometimes making fun of distributions that have a partition for every /root/folder but well yes it has it’s reasons, like when a program accumulates to much data (mailbox full), the /root partition and the system will not […]

15.05.2017

the commands used for xfs are different. this is only valid for ext3/ext4. preparation: you should move your /home to a separate partition. Warning! You will need to have “physical” access to the server’s console in order to perform these […]

15.05.2017

“XFS is a high performance journaling filesystem which originated on the SGI IRIX platform.” SGI (Silicon Graphics) is out of business since 2009. “The addition of 3D graphic capabilities to PCs, and the ability of clusters of Linux– and BSD-based […]

NAS from Free Open Source Hardware and Software
28.04.2017

this is a crowd-funding project that still needs funding…. if you can help! please chip in 🙂 https://www.crowdsupply.com/gnubee/personal-cloud-1 Tour of LibreCMC and openmediavault We took a screencast of LibreCMC and some screenshots of openmediavault running on the GnuBee Personal Cloud […]

Linux automatic filesystem check on reboot every sunday
18.04.2016

tested with: ext3 and ext4 (does not work for xfs) MY RECOMMENDATION: WHO CARES IF THE NAS IS DOING A AUTOMATIC REBOOT AT SUNDAY 3 o’CLOCK IN THE MORNING AND CHECKING 2-3TB OF EXT3 FILESYSTEM? NO ONE! RELIABILITY SHOULD BE […]