Newbies never listen...

sh.itjust.works/pictrs/image/5be3baf1-8b15-4fbfโ€ฆ

submitted 2 weeks ago by 0x4E4F

Newbies never listen...
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Real pros shuffle across the carpet to build a static charge and do their system administration by electrical fault injection.

Still not as bad as chmod -R 777.

Once had a friend run sudo chmod -R 777 / on a (public) Minecraft server we were running back in highschool. It made me die a bit on the inside.

Doesn't it break a lot of things? Half the stuff refuses to work when some specific files have too permissive chmod.

Really only SSH and sudo broke. sudo would still work but you'd have to re-enter your password every time. It was a painful experience and I'm glad I know better now.

As a one time noob I may have done this once or more.

To get one thing working I borked everything.

Understanding permissions is pretty basic. But understanding permission requirements for system and user apps and their config and dirs can be a bit overwhelming at first.

Thinking a little change to make your life simpler will break something else doesn't always register immediately.

Shit, even recently, wondering why my SSH keys were being refused and realising that somehow i set my private keys world readable.

Thank god SSH checks file and dir permission.

Jesus, every time I have to run glx or vaapi under a container I end up having to do this then cringe.

from the chmod or from the containers?

From the chmod, I love running games and shit under containers.

You don't need to

Nah, there's something broken, I think it's because group render under the container has a different GID than the container so the acl fails and you either sudo or chmod.

Lxc is still a little wobbly in places.

I use podman and since it runs as my user it has exactly same same permissions as me. I just add my user to the proper group and it works.

Anyway for LXC you could just passthough a folder and then create a file. From there you can look at the file on the host to see who owns it. That will give you the needed information to set permissions correctly

Ahh, I'm running priveleged containers, I wrote my own scripted framework for containers around lxc in mostly python.

Basically I fell head over heels in love with freebsd jails and wanted them on Linux, then started running x11 apps in them, it's my heroin.

Haven't used podman outside proper k8s for work, did proxmox for a bit, but it was just a webgui for the same thing.

There were a bunch of online bug reports about the /dev/dri issue, maybe there's a better solution now, but since this is my workstation I wasn't as worried about security.

just worked a job where I did not have privlages to sudo commands. except su. had to sudo su so I could run a script.

Could you not just use root to give your user sudo? Seems like a pretty dumb restriction

Possibly but my role was such Im really only supposed to be working on my project and not monkey with the server which is used by other projects. I don't think it was a restriction I think it was just laziness by whoever set it up.

Fair enough. Got a colleague who sudo nanos everything then wonders why he keeps getting permission denied errors later lol

*...file in* ~/.config...

- sudo nano /path/to/file... yeah, I wanna fucking save changes... OK, let's see if it works... damn it, this distro fucking sucks man!

Worst part is he's the sysadmin

Come on! I've stopped logging on as root, can't we just leave it at that?

Stopped being fun after you destroyed the system a few times... am I right ๐Ÿ˜.

then at first day of work:

just use sudo su, we don't have all day here.

And you give them the look and they shut up.

"You're absolutely right, we wouldn't want to take *too* long to break the network or open god rights vulnerabilities"

Sometimes your package manager asks you for root password every minute while doing few hours long update and cancelling process if you don't enter anything for few minutes, "yay" aur manager looking at you, and you got to do other things than sit and look in the monitor all day long, things like cleaning house or touching grass for example

sudo visudo

At the end:

Defaults:USER timestamp_timeout=30

USER is obviously changed to your username.

If I remember correctly the default sudo timeout is set to 5 minutes on Yay, you should be able to increase it to something more reasonable

Man if only there was an option like --sudoloop to ensure that doesn't happen

See, this is why I love xbps. Does everything in one blow, no bullshit.

I'm in jail because I was not in the sudoer file

This incident was, in fact, reported.

Well, you were warned ๐Ÿคท.

Reminds me of all of those vendors that require Windows Admin for no reason.

Looking at you quickbooks network shares...

Its not like QuickBooks are sensitive data or anything

More like I come in to fix someone's aging infrastructure and find a QuickBooks share with read/write everyone because people are too lazy to RTFM.

Ahem...

That's the supported configuration. There support will not support anything else. It is total BS which makes sense because they want to silo you to the cloud

sudo -s for auditability

Wasn't it 2017 where they had the race condition in sudo su as the command elevates up to root and drops back down?

Every other year, sudo su was not unsafe but merely ghetto. 'sudo su' is the dutch-rudder of 'sudo'.

Reminds me of software saying to put your docker socket into the docker container you are starting for convenience.

Oh yeah, I'm docking the shit ot of that container!

I get tired of typing the same command twice.

chmod 777 /directory go brrrrrrrrrrrr

You mean sudo chmod -R 777 /that/path/I'm/trying/to/share ?

Ya probably. Iโ€™m dumb enough to type that in and just see what happens ๐Ÿ˜Ž

Why does sudo su exist? sudo -i does exactly what you want.

It's much easier to type sudo su ๐Ÿ˜…

Guilty as charged, officer.

I bet you distro hop a lot.

Yeah. After that everything can be done with !sh.

(Edit: This is a joke. There's a lot of reasons not to do this.)

sudoedit is what you're looking for. Don't elevate the text editor.

sudo su -c "man man"

Our crappy vendor software will only function if IPv6 is disabled network wide. Even if one machine has it enabled, the whole thing breaks

Lol our former crappy vendor solution required to be run directly from AD Administrator. Pure luck the entire business didn't collapse before we replaced it.

A thread I read a long time ago on r/sysadmin

That's at least once a week

run0 is the new sudo su

You're going to start a fight with the doas people.

And the people that don't use systemd.

All five of them.

There are a few of us, but our 2nd gen i3s will eat the shit out of your 5th gen i5s ๐Ÿ˜.

there are dozens of us

OpenRC represent!

๐Ÿฅน ๐Ÿ™

sudo -u root bash ftw

Use Sudo -i instead. Sudo su is like cat file | grep pattern vs grep pattern file. You're wasting resources.

I'm partial to sudo bash myself ๐Ÿ‘Œ

Can't programs steal sudo access if the timeout isn't 0?

If on a brand new rig, it's allowed.

Oh, sorry, I misread programs as programmers ๐Ÿ˜.

And no, I don't think so. Credentials need to be cleared before exectution.

Okay. So you *must* invoke sudo fr on the exact same shell? It cant be taken from a subsequent script?

Credentials are inherited by every child process that the parent process invokes. Thus, if you give root credentials to a command, every subsequent command that the original one invokes will have root credentials.

There are some exceptions, but these are special case scenarios and are literally only a few.

Tell me you use Ubuntu without telling me you use Ubuntu.

Wait till you try this on Debian or non Ubuntu variants.

I ask out of ignorance - why would it be different?

Debian doesn't have sudo by default, you have to install it manually

Not sure what they mean by "non Ubuntu variants" though since most other distros add it even when they aren't Ubuntu based

Ubuntu uses Snaps for a lot of the software, thus, when you write sudo apt install firefox that is actually an alias for "install firefox from snap". Snaps get installed locally, not on the system (globally, for all users), but as a user, so you really can't do much damage when you actually didn't do anything to the system in the first place.

Do sudo shit on any other distro that doesn't have a company behind it, see what happens.

True, but not actually the reason, it's because Debian doesn't discourage the use of the root account, and su is used instead of sudo.

Really? But why?

Because if you have sudo, you have root. Side effect of being a server system, too. During install, if you specify a root password, sudo is not installed. If you don't, it is. Ubuntu just defaulted to the latter.

sudo rm -rf /*
what could go wrong? (don't try it)