I found this site to be very helpful.
https://negativo17.org/bluray-playback-and-ripping-on-fedora-aacs-bd-bd-j/

There is also a libbluray-bdj package in the main fedora repo. I have no installed it yet. If the next BluRay I watch has a problem, I will maybe try those settings.
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@emad-r said in Linux As File Server- Break Out From Other Thread:

@scottalanmiller said in Linux As File Server- Break Out From Other Thread:

@emad-r said in Linux As File Server- Break Out From Other Thread:

The only down side to it, that the files will take size on their machine as well as the NC server, thats it. If you can afford this, then this is the way to go.

That's purely optional. Not a given. NextCloud can be used with files purely on the server just like with SMB.

Huh, how so ? you mean only via web client. If your installing the agent at somepoint it will need to sync the files to your account synced folder.

That's one option, but not what I mean. You can map drives to it, too.

@phlipelder said in Use Hyper-V to replicate Linux vm file share:

@scottalanmiller said in Use Hyper-V to replicate Linux vm file share:

@phlipelder said in Use Hyper-V to replicate Linux vm file share:

Hyper-V Replica would work in this situation with a few caveats.

There is a 15 second limit on replication cycles. If the VMs are running database/active services this could be a problem.

That would be handled earlier in the process by the backup job. If the backup is good, the replication won't cause an issue. If the backup is bad, the replication can't fix it, of course, but will replicate the bad backup. But the only place that this can be addressed is in the backup step, the replication is of backup files, so not at a point in the process where it matters.

"Garbage in garbage out" never seems to go away. It's been the bane of our existence since the switch to image/block based backups. :S

File backups suffered from this, too. Databases are just hard to back up.

@fateknollogee said in NFS Server...what to build??:

@scottalanmiller said in NFS Server...what to build??:

@fateknollogee said in NFS Server...what to build??:

@scottalanmiller said in NFS Server...what to build??:

@fateknollogee said in NFS Server...what to build??:

HW is simple:

2x SSD for o/s 4 - xx SSD for NFS shares

Why would you have drives for the OS? This both breaks standard storage practices AND assumes a physical install which is a 'no no'.

Why would you assume a physical install ?
I'm installing the hypervisor (in this case FC28) on a Raid1 array of 2x SSDs

Because you stated a dedicated array for the OS, not for the hypervisor. I'm only going by what you wrote. If you wanted dedicated for the OS, you'd need it whether you had a hypervisor or not.

Understood. Next time, will be more specific

Since that's a lot of money to spend just for a hypervisor that isn't used, it seems much more rational to use it for an OS than a hypervisor. It's not that there is truly zero value to a dedicated HV array, but it is nearly zero. SSDs, even cheap consumer ones, aren't free. But the value is so low, they'd basically have to be.

@scottalanmiller said in NextCloud Access Is Forbidden By Server:

Got it, had Nginx proxying on port 80 instead of 443. Not a big deal as it was on the back side, but it didn't like the headers.

That was going to be what I told you to check had I seen this sooner.

Did you look at one of my example config’s and see what was different because I also proxy this on port 80 on the backend.

@black3dynamite said in Make a Bootable Windows 10 USB Installer from Fedora Linux:

@scottalanmiller said in Make a Bootable Windows 10 USB Installer from Fedora Linux:

@black3dynamite I've not seen that happen. This is every time?

It happened twice so far with the same USB.

Try another USB, maybe there is something wrong with that one?

@brandon220 said in How to take advantage of virtualization. Major products get updated:

I plan on setting this up in the lab soon. dm-cache also sounds interesting. I've never touched software RAID because 95% of my environment has been MS for a long time. Always have gone the hw raid route.

https://www.redhat.com/en/blog/improving-read-performance-dm-cache

Redhat did some testing with an SSD but it looks ugly. 5 passes and no performance improvement using a SSD. I suspect they are hamstrung by the patent minefield that is ARC (IBM of all people has this patent BTW) and the subsidiary cool optimizations that have been made to it (ARC was intended for CPU cache originally, your storage fun fact of the day!). Also I suspect the IO path on this thing isn't the cleanest. Looks like the Linux kernel file cache is going to be faster which if I"m using that I might as well just give memory to the guest and let it sort it out (especially with the lack of dedupe or single instancing of this cache).

If your looking to speed stuff up I say get "the good stuff".

We got some PMEM DIMMS in the lab, and this stuff is face melting fast. You can "bolt" it on with a DAX file system, but the best way to use it is with applications that have been redesigned to support it. We forked REDIS to support this and got latency 12x better than using local NVMe drives, and 2.8x better tha DAX.
Oracle had 57x better operational latency.
0_1534916586664_Redis.PNG
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@fateknollogee
I don't have experience with that particular brand but have used Intels NUCs in a number of different applications.

I think the CPU is too weak on that one. Intel have a couple of NUC models that are priced similarly and some with bundled Win10 and memory / HDD so I would have a look at those. Look for instance at the older model with the J3455 cpu.

The daemom is written in python and takes forever to rebuild the db if you restart it… I had ~1Tb in 2 millions of files. The thing is, it keeps track of the file chunks of every files… sort of joins object storage and file storage together. Very bandwith efficent, but horrible on cpu and I/O. I switched to nextcloud that lacks that feature, but it’s much faster and flexible.

@francesco-provino said in Linux: History:

@stacksofplates said in Linux: History:

you can just do

gedit ~/.bash_history

or if you like the cli

cat ~/.bash_history

Obv only Bash if that's what you're using.

Why conCATenate? Just use LESS.

You can do either or any combination. Mostly just pointing you you don't need the gui.

@iroal said in Guacamole 0.9.14 on CentOS 7:

@jackmartins_ said in Guacamole 0.9.14 on CentOS 7:

@iroal Did you solve this problem? I got the same error

I reinstall using this tutorial.

https://cstan.io/?p=11405&lang=en

Regards.

Those instructions is pretty good. He did leave out information about the default user and password for it.

@scottalanmiller Did you ever fix this?

@xylems said in Errors Building Guacamole Server on Fedora 28:

@travisdh1 step-by-step guide for the entire guacamole installation?

Definitely make it two parts, preferably two posts. Post one for setting up Guac. Post 2 for setting up LDAP.

Something like this format https://mangolassi.it/topic/16471/install-bookstack-on-fedora-27
Or this: https://mangolassi.it/topic/16380/install-nextcloud-13-0-0-on-fedora-27

@ccwtech said in Fedora 28 - Repo 'rommon-telegram' error:

@dafyre said in Fedora 28 - Repo 'rommon-telegram' error:

Check and see if the repo is in /etc/yum.repos.d -- remove it if it is.

Yep, that's it. Thanks!

You're welcome!

@emad-r said in CentOS 7 - Why Did [Almost] Everyone Switch to Fedora?:

the other guy who is knowledgeable but not as nice as Scott

Hahahahahahahahahahh

Depends what you want. nmap works well for a lot of info. arp-scan gives you a simple table of MAC, IP, and manufacturer.

Here is a good example of why this is complex even for blind swap hardware RAID... it's not always clear what it is supposed to do.

https://mangolassi.it/topic/17314/replaced-drive-in-pe-t410-not-adding-to-virtual-disk/