Root Access

Bob

12:01 AM

@JourneymanGeek wine on bash on ubuntu on windows?

Apparently it's actually doable :P reddit.com/r/bashonubuntuonwindows/comments/5kkg2i/…

Journeyman Geek

ah, actually, works if you run it in compat mode

Bob

lol

that's what a lot of comments here say news.ycombinator.com/item?id=13603451

Journeyman Geek

lol

I meant kkreiger

Michael Frank

12:16 AM

Bob

12:42 AM

@JourneymanGeek Got that Scaleway server :P

Hosted by Charlus (Paris) [1.88 km]: 3.446 ms
Testing download speed........................................
Download: 696.63 Mbits/s
Testing upload speed..................................................
Upload: 245.98 Mbits/s

o.O

Journeyman Geek

yay?

which one? Arm or x86?

Ben N

Woah, those speeds are wild

Bob

1:01 AM

@JourneymanGeek Smallest virtual

Journeyman Geek

ah

Bob

Actually I just needed to test something real quick :P

and my own dedis are still in an, ah, uncertain state

Journeyman Geek

lol

Bob

ok, anyone have any suggestions for a fast randomly-accessible archive?

one that can preserve posix permissions, ownership and symlinks

the traditional one is tar, but tar isn't randomly-accessible (i.e. it's really slow to extract an arbitrary file from a large archive)

hmmm kinda

Journeyman Geek

1:24 AM

@Bob soooo, I migrated syapse to postgres rather than sqlite

MASSIVE improvement in processor usage

still having some problems joining rooms on the main matrix server but it might be them, not us

ah no

Bob

@JourneymanGeek that's ... odd

well, the client process would use less, but postgres would use more ..?

Journeyman Geek

I do have postgres running anyway

joining matrix.org seems to slow things down/increase load massively

Bob

@JourneymanGeek well... it's not like I don't have a ton of spare capacity to host on...

how's the memory usage?

bwDraco

> High five! Your order has been shipped. Please check the status of your package by checking your store account. If you started a ticket asking about your pending shipment please help us and close your ticket through your ticket overview.

As a start-up, we are constantly improving our product, processes and business. Thank you for your patience with us and trust in our product.

Your shipping confirmation is below. Please note that it may take up to 24 hours for your tracking number to become active, so don't worry if you cannot track it just yet. If you haven't received your parcel with…

Bob

cause that's the limit I'd run into first

bwDraco

1:38 AM

My OnePlus 3T has just shipped 😇

Journeyman Geek

not bad

Bob

my CPU basically sits idle, but ZFS is happily chewing as much RAM as it can get its metaphorical hands on :P

Journeyman Geek

Yeah, synapse is a little memory hungry but the default is 300-400 megs

Bob

Eh, I'm fine with < 1 GB tbh

< 512 would be an added bonus

Journeyman Geek

I'm not actually sure if its vector that's being a pig

Bob

1:40 AM

still can't play with that yet, I think it'll take at least a week before I'm happy that this server is properly archived and ready for, ah, purging :P

I wonder what the best way of fully wiping the disk is

Journeyman Geek

just overwrite it with zeros.

Bob

given that I don't think I can get IPMI access anymore (it's ollllllld Dell/iDRAC, which means Java, which means bleh on modern browsers)

should be enough if I do it live, I guess

I wonder how much of / I can rm before tools stop working

Journeyman Geek

lol

bwDraco

> ollllllld

lol

Bob

or how unhappy Linux will be if I dd if=/dev/zero on the kernel/system drive

Journeyman Geek

1:42 AM

SOmeone did that on SU (blog?) I think

bwDraco

The machine would panic before it would finish.

Bob

well, if it can finish the command before it crashes, that's fine :P

@bwDraco yea, that's why I don't want to do it

not completely sure how far it'd get

hm. could extract a live env into a separate partition and boot into that...

Journeyman Geek

@Bob I wonder if you can set up grub to boot up a pre-set up recovery environment toram...

bwDraco

If you could boot solely into the initrd and not mount anything else...

(in which case the OS is entirely in memory, but may be extremely barebones)

Speaking of which, Tiny Core Linux runs straight off the initrd, and packages and user data are loaded separately.

Bob

@JourneymanGeek sounds risky... good chance it'll fail to boot on the first try and then I'd have to figure out IPMI anyway

Journeyman Geek

1:45 AM

yeah

Bob

@bwDraco yea, but I'd need sshd at a minimum

bwDraco

Ahh.

Journeyman Geek

@Bob or delete essential config and home folders first

then yanno

Bob

guess I could do a free space wipe first, yea

Journeyman Geek

yeah, its fine as long as I don't connect to matrixorg

Bob

1:46 AM

Setting up rsync (3.0.9-4) ...
update-rc.d: using dependency based boot sequencing
insserv: warning: script 'v_smb' missing LSB tags and overrides
insserv: warning: script 'v_xinetd' missing LSB tags and overrides
insserv: warning: script 'v_sendmail' missing LSB tags and overrides
insserv: warning: script 'v_portmap' missing LSB tags and overrides
insserv: warning: script 'v_httpd' missing LSB tags and overrides
insserv: warning: script 'vservers-legacy' missing LSB tags and overrides
insserv: warning: script 'rebootmgr' missing LSB tags and overrides

O_O

bwDraco

...that's not good.

Michael Frank

2:01 AM

@Bob I think you have some stuff missing...

Bob

2:16 AM

@JourneymanGeek what's your atom again?

Journeyman Geek

ark.intel.com/products/77987/…

Ramhound

@Run5k 👍🏿

0

Q: Why does the Local Computer Policy editor not support Registry settings?

I am attempting to test some policies on my local PC, but I've found that after attempting to create registry keys utilizing the "Local Computer Policy" Group Policy Object Editor there is no Local Computer Policy\Computer Configuration\Windows Settings\Registry or Local Computer Policy\User Conf...

Bob

@JourneymanGeek ... ... ... I've got two cores from that on the smallest scaleway virtual server :P

Journeyman Geek

ah

Bob

cpu:
                       Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz, 2393 MHz
                       Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz, 2393 MHz

Journeyman Geek

2:23 AM

I'm curious about the scaleway quadcores

Bob

@JourneymanGeek Which ones? The dedicated ones?

Journeyman Geek

yup

Bob

I can fire one up and check, gimme a sec (<3 hourly billing)

Journeyman Geek

lol

Bob

Huh, their C2Ms are out of stock

the 8-core ones

they also sound suspiciously like the online.net dedibox :P

Journeyman Geek

2:25 AM

the 8 core ones might be essentially old/spare online.net dediboxen ;p

Bob

@JourneymanGeek they probably are :P

Journeyman Geek

I have a ridiculous amount of atoms in use

Ramhound

@Bob My best advice I have to discard a hdd is to use FDE then format the HDD and use FDE again. But it all depends the reason your discarding the hdd.

Bob

@Ramhound It's on a dedicated server on the other side of the world, and I want to do it from within the running OS if possible.

The data on there isn't that private. It's more of a 'nice-to-have'.

So I'm thinking delete what I can, free space wipe, dd zero-fill till the kernel panics.

@JourneymanGeek At least 7*10^27 of them? :P

cpu:
                       Intel(R) Atom(TM) CPU  C2550  @ 2.40GHz, 2394 MHz
                       Intel(R) Atom(TM) CPU  C2550  @ 2.40GHz, 2394 MHz
                       Intel(R) Atom(TM) CPU  C2550  @ 2.40GHz, 2394 MHz
                       Intel(R) Atom(TM) CPU  C2550  @ 2.40GHz, 2394 MHz

Ramhound

I would still suggest FDE then do that :-). assuming you want a dead server on the other side of the world with an encrypted hdd

bwDraco

2:36 AM

> Scheduled delivery:
Fri 4/07/2017 by 8:00 pm

Shipping via FedEx 2Day from California.

Ramhound

So I really should turn the heat on, sitting here, and my feet are freezing lol

With socks...

Love my co-op power company :$ 63 in my apartment, lol

Bob

@JourneymanGeek want to play on the server for a bit? :P

I still have another half hour on it

if you want to run some benchmarks etc

Journeyman Geek

@Bob not particularly ;p

Bob

@JourneymanGeek btw, anandtech.com/show/11110/…

Journeyman Geek

yeaaaah

Michael Frank

2:45 AM

Now, I'm not a pilot. But I'm fairly certain if my package departed from China on a plane more than 48 hours ago, it should have landed in New Zealand by now...

Journeyman Geek

now this is exactly why I need to get backups on that

Bob

@JourneymanGeek well, worst-case it's unbootable but you'll still have your data :P

@MichaelFrank it probably ended up on the wrong plane

@JourneymanGeek wait. is this the online.net server?

Journeyman Geek

Yuuuuup

Bob

well... at least you can possibly-maybe ask them to hook up the disks to a new server

Journeyman Geek

In theory

tbh, in practice, what I'd do is get another server, rebuild things with better documentation, and just move the latest VM snapshot over.

or drop the VM in a bare server build altogether.

(and swap over to an SSD. I don't really need all that much space.)

but yeah, that's a weekend for when I have income ;)

The new version has twice the ram anyway

Bob

2:59 AM

ha

@JourneymanGeek if you need temp staging space, lemme know :P

see: lots of spare capacity

Journeyman Geek

@Bob needs a nfs share or smb it seems

and I cannae be arsed to set one up

Bob

lol

@JourneymanGeek how much data are we talking?

Journeyman Geek

Its a 500gb drive

but obviously, not totally used

about a hundred gigs used.

blah. I think I'll do it myself.

Bob

@JourneymanGeek du -h -d1 / | sort -h

I used that to clean up a lot of junk :P

got it down from ~200 GB used to ~31 GB

Journeyman Geek

3:14 AM

105g , mostly on /var

Bob

@JourneymanGeek eh, lemme know if you want the server. US one only has some 200 GB free but AU one is brand new with 2 TB

TIL Sysnative samlogic.net/articles/sysnative-folder-64-bit-windows.htm

Journeyman Geek

@Bob if I leave out the VM...

about 6gb

but yeah, I think I can throw this on the seedbox and backup

Run5k

@Ramhound Thank you, good sir.

Bob

@JourneymanGeek up to you, just poke me otherwise :P

Journeyman Geek

@Bob I think the big issue is indecision and motivation XD

Bob

3:19 AM

@JourneymanGeek see: reasons I paid $70/month for a dedi that was supposed to be decommissioned a year ago

Journeyman Geek

@Bob lol

Bob

But you just can't find 2xL5639s w/ 48 GB RAM for that price these days :(

Journeyman Geek

lol no

Bob

It was a free upgrade from 8 GB to 48 GB. Amazing offer at the time.

Still amazing now.

Journeyman Geek

tbh, I could actually just do a poor man's gank/copy

Bob

3:20 AM

Speaking of. If anyone happens to want a server like that, 70 USD/month, I'll see if I can transfer it to you...

Journeyman Geek

the big pain point here is I don't remember how I set up KVM + bridged networks on this

Bob

Otherwise I'm gonna cancel it in about a week.

@JourneymanGeek ...funny thing, that. I have a giant messy onenote page detailing mine :P

Journeyman Geek

I mean, I could quite literally just redo the whole thing.

@Bob this server kinda grew organically ;p

Bob

by contrast my AU server is sadly much more poorly documented

@JourneymanGeek so did this, but I did copy down a few things :P

@JourneymanGeek scaleway.com/faq/general/#-What-is-the-Swag-pack-perk lol

Journeyman Geek

3:35 AM

@Bob Oh, actually.....

these guys have a FTP backup service

Bob

lol

Ramhound

Wow i really need to learn glusterFS

Michael Frank

3:49 AM

I discovered ConEmu the other day. The Quake style drop down is amazing.

Jason C

SU has a fan, lol:

-4

Q: Why is everyone over at the regular stackexchange/Superuser such a D-bag?

This does not really relate to Sci-Fi, but I have a question for you all about the site in general: Why is everyone over at the regular stackexchange/Superuser such a D-bag? Every time I have answered someones question, or even asked a question or two, people have answered or commented with snid...

technology

Journeyman Geek

Tempted to answer...

We try our best to treat people exactly as they deserve

Jason C

I can't wait until he posts on MSE.

This one's still my favorite hate post: gemsfromstackexchange.tumblr.com/post/158927117317/discoveries

Vishnu N K

4:26 AM

I was trying to find the difference between scp ans sftp.
https://superuser.com/questions/134901/whats-the-difference-between-scp-and-sftp
The answer described here doesn't explain much about the difference or which is better. Can anyone give a clue on this.

allquixotic

@VishnuNK SCP is using the SSH protocol to transfer files through the SSH tunnel; FTP is using the FTP protocol to transfer files, and SFTP is just wrapping FTP in a TLS socket

Journeyman Geek

@Bob I restarted the server after 200 or so days

allquixotic

both are equally viable for transferring files, and these days both are cross/multi-platform, so it mostly boils down to the differences between TLS security and SSH security

Journeyman Geek

lets see how lucky I am ;p

allquixotic

different crypto algorithms, different implementation of PKI, different handshake mechanism...

Journeyman Geek

4:33 AM

@allquixotic I thought FTP in TLS was ftps?

Vishnu N K

So SFTP is not just a protocol over SSH? It is actually the FTP protocol itself?

allquixotic

oh, whoops, I get that wrong all the time

there's SFTP and FTPS; indeed, SFTP is FTP over an SSH tunnel

so SCP and SFTP both operate inside of an SSH tunnel; the only difference is in the command set that is sent and received in the plain text protocol of each

blogs.oracle.com/janp/entry/how_the_scp_protocol_works

Vishnu N K

If SCP and SFTP both are over SSH protocol then what is the need of two protocols for the same purpose?

Jason C

@allquixotic SFTP isn't FTP over SSH. SFTP is over SSH but it's not like FTP. Very different protocol.

Vishnu N K

@J

allquixotic

4:39 AM

@VishnuNK the history of computing is full of separate implementations of similar ideas; the existence of multiple ways to do something isn't anything unusual, and is usually an artifact of one or more early implementations being released under licensing terms that somebody didn't like, or costing a lot of money, or only being available on certain systems

Jason C

It's just that "File Transfer Protocol" was an annoyingly vague name for a protocol, so any other file transfer protocol unfortunately ends up sharing the same abbreviation.

allquixotic

why do Microsoft's browsers, Chrome and Firefox all have significant market share? why do we have iOS and Android when both do roughly the same thing? why do we have about 50 different popular build systems used for compiling software? hundreds of music player apps?

it comes down to politics, licensing, or "because I want to" type stuff, usually nothing too objective -- otherwise, if one protocol were clearly and objectively better than the other, one of them would quickly go out of existence

Jason C

@VishnuNK en.wikipedia.org/wiki/SSH_File_Transfer_Protocol#Capabilities for some differences with SCP and info on the history, which if you read up, will answer your questions about why both exist.

allquixotic

(e.g. with version control systems, we're seeing a convergence on Git and the others are dying off, because Git is legitimately better)

@JasonC TIL

Jason C

@allquixotic Git is legitimately better unless you want to do something that makes sense, lol.

The only thing git's got going for it, and it's a big thing, is github.

Vishnu N K

4:47 AM

@JasonC @allquixotic So SFTP and SCP and actually two different protocols which expects the underlying SSH protocol to provide authentication and security for the file transfer. Also there are some advantages or addons for SFTP like platform independent, remote access etc.

Jason C

Pretty much

Vishnu N K

thumbs up for git and github. :)

allquixotic

@JasonC Huh?

I use Git on projects that have nothing to do with github (except the occasional, incidental dependency on some software that might be hosted on github) all the time, and would prefer it for those projects over any other VCS for many reasons.

Jason C

@VishnuNK Also SCP is a much simpler protocol.

allquixotic

I'll admit it took me a good solid year to get familiar enough with the way Git works to not view it as a completely alien, weird system, with plenty of counterintuitive stuff; but what it lacks in intuitiveness it makes up for in performance, storage efficiency, security, flexibility, programmability, and featureset (as hard as it may be at times to discover those features)

Jason C

4:53 AM

Yeah, a good solid year for a VCS is inexcusable.

Go use Mercurial for a while then head back to git.

allquixotic

Used Mercurial; got bored waiting for it to complete simple commands; went back to Git :P

Jason C

Plus the fact that it lets you permanently alter revision histories from the past is just dumb.

I wouldn't have a problem with it if it wasn't so... autistic.

Anyways, I'm not really interested in vcs debates. I'm going to go back to Netflix. Peace.

allquixotic

Yeah, it's about as productive as vi vs. emacs or Windows vs. Linux; in the end, old stick-in-the-muds will be old stick-in-the-muds and use objectively inferior software anyway ;-) </troll>

Bob

@allquixotic no, FTPS (implicit/explicit) wraps FTP in TLS. SFTP is a completely different and incompatible FTP-ish through SSH. (cc @VishnuNK)

Vishnu N K

lol. I'm just shifting from git to mercurial for my current project.

Bob

4:59 AM

oh wait geek and Jason covered that already

note to self: read whole transcript before replying

Vishnu N K

@Bob Thanks :)

Rahul2001

5:12 AM

@JourneymanGeek IME SU is definitely amongst the friendliest SE sites.

Dog

So SFTP is a lie then

Gypsy Spellweaver

@Dog How so?

Journeyman Geek

5:58 AM

lol

@Bob I think this is turning into one of those days where I start on something simple, and it turns into a dogaweful mess of workarounds

Bob

@JourneymanGeek that's every day for me ;)

Journeyman Geek

I now have a port forwarded smb instance mounted from my server to my nas

updated the kernel cause for some reason dnf is not pulling in the older kenel I had...

which should let me install veeamsnap again

then I need to work out how to automatically mount a smb share with a non standard port...

\o/

And maybe reboot again.

I thought you didn't need to reboot for dkms modules..

Bob

6:15 AM

O_O

dual E5-2670... 64 GB RAM, $79/month

@allquixotic ^ if you ever need ridiculous CPU in a dedi...

that's 16 cores / 32 threads of 2.66 GHz Sandy Bridge.

> Quad Xeon E7-4860 256GB 6x 2TB SAS Preconfig
2.26GHz / 2.67GHz Turbo - 4 processors
40 Cores / 80 threads

Ok that's just insane

Downsite: their network is currently shit

Hosted by Packet Layer Consulting LLC (Kansas City, KS) [5.37 km]: 7.895 ms
Testing download speed................................................................................
Download: 78.70 Mbit/s
Testing upload speed....................................................................................................
Upload: 8.80 Mbit/s

Hosted by Packet Layer Consulting LLC (Kansas City, KS) [5.37 km]: 7.903 ms
Testing download speed................................................................................
Download: 80.33 Mbit/s
Testing upload speed....................................................................................................
Upload: 2.93 Mbit/s

ugh

I can't even rsync out properly

Journeyman Geek

\o/

I think it worked

Its going to take a while but I can live with that

Gypsy Spellweaver

@Bob Orbital calculations for all the known space debris in one pass in real time?

Journeyman Geek

So... had to mount smb manually because my ISP blocks the port cause of ... Sasser... I think

then somehow beat veeam into working by upgrading the kernel. Then basically removing and reinstalling veeam, since dnf reinstall seems to... build a new kernel module, then remove the old one...

and holy cow. Intercontinental SMB ><

I was complaining about my old workplace relying on that before ;)

\o/

Bob

> 14.9 MB/s

nice

meanwhile, over here

     11,960,320   0%   44.40kB/s    8:10:43  xfr#0, ir-chk=1043/10599)

[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.1 sec  36.0 MBytes  29.8 Mbits/sec
[  4]  0.0-10.7 sec  3.00 MBytes  2.35 Mbits/sec

:(

Journeyman Geek

@Bob downloading staight to my nas

I'm at 22.9MB/S now

target's the bottleneck

Bob

6:30 AM

I'm at ADSL-MB/s now -_-

Journeyman Geek

and this is rediculously fast.

Bob

calling it MB/s is wrong too

more like kB/s

actually, this is literally going slower than my ADSL upload

wtf kind of server is this

Journeyman Geek

the best part here is I can use the same smb connection to do a file level backup is needed

@Bob mine?

Bob

@JourneymanGeek mine

user226528

Hi

Gypsy Spellweaver

6:31 AM

@FleetCommand :)

Journeyman Geek

non standard smb ports

actually standard smb port, port forwarded to non standard smb port, mounted using cifs...

I wonder if I could throw in a port forward on the server...

Gypsy Spellweaver

Does the stack agreement with imgur allow posting of animated gifs in Q&A?

Journeyman Geek

so its smb -> 9999 then forwarded back to the sandard port

@GypsySpellweaver I sure as well hope so.

Its something I use a fair bit

Gypsy Spellweaver

Ok, found a fixup that has one, first I've seen out of chat. was not sure.

user226528

Yesterday, I re-joined six dozen clients to a domain. I forgot. Which of you is smart enough to guess what the forgotten computer was?

Journeyman Geek

6:35 AM

yours?

user226528

@JourneymanGeek Damn. I knew you're the smartest here. LOL

user226528

Yep. Mine. Fortunately, I remembered in time.

user226528

6:47 AM

I just received disturbing news: Ubuntu is dropping Unity in favor of GNOME.

Bob

Hosted by Fibrenoire Internet (Montreal, QC) [1.26 km]: 3.208 ms
Testing download speed........................................
Download: 927.28 Mbits/s
Testing upload speed..................................................
Upload: 558.67 Mbits/s

OVH is fine

actually that's pretty impressive

Journeyman Geek

@FleetCommand is it first april?

Bob

might be in the same DC...

Journeyman Geek

@FleetCommand holy vow

Gypsy Spellweaver

@FleetCommand Fork it.

user226528

6:50 AM

arstechnica.com/information-technology/2017/04/…

Bob

@FleetCommand wow.

only took them half a decade :P

> spelling doom for the goal of creating a converged experience with phones acting as desktops when docked with the right equipment

*cough*Windows Phone*cough*

'course, there's the chance MS will drop it now they don't have a competitor

user226528

A feel a disturbance in the Force... an Android uprising may be nigh...

Bob

@FleetCommand Android on non-touch is a joke

Android on large displays is also a joke

19

Q: Securely wipe an entire Linux server with itself

I have remote ssh access and root access. I do not have physical access. I'm not looking for solutions involving booting into anything, I want to do this from what is currently running. OS is SL6. Is there a way to load everything needed into RAM, and use dd or similar to securely wipe the enti...

linux security dd secure-delete

@JourneymanGeek @bwDraco ^ someone's done it before :P

TIL pivot_root

Journeyman Geek

@Bob I did think so

Bob

@JourneymanGeek It just happens that I have this handy little Scaleway VM to test things out on... :)

Journeyman Geek

6:59 AM

yes?

lol

Transcript for