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Questions tagged [sysadmin]

59 questions
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Custom AdminSDHolder protected objects

I have a task to remove adminCount and restore permisions inheritance for all users that are no longer member of protected groups. However there are few groups that were created by our organization and have adminCount along with permisions…
varrimatrass
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Is there a way to find hidden options and arguments on for a command / package that isnt documented?

On Linux if I install a new package and it contains commands I haven't used before, is there a way to find hidden options and args that are not documented in the MAN page or with the --help option. Iv come across a couple of packages recently where…
Matt B
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Ubuntu can't communicate between two servers

I have 3 servers: Server #1 runs among other things a MongoDB database Server #2 runs some apps that connect to server #1's mongodb, everything works fine Server #3 is a new server where more apps will connect to server #1's mongodb My issue is…
Julien
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How to determine what CVE is back ported to what version of package?

I'm trying to determine what version of apache is backported for CVE-2021-40438. I'm very confused as to how to find out. Our spacewalk server has multiple apache versions of 2.4.37 from -10 to -56 and the specific VM is up to date with…
Scivic
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Communication failure between agent and Zabbix Docker server

Currently I have the following scenario: First server: I have the Zabbix components: server, gateway and web interface (along with a mysql database), all running via Docker containers (released port: ufw allow 10051). Second server: I have the…
rhuanpk
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Send An E-mail To A GMAIL Address From Linux Mail Command Using Postfix As The MTA

I am a beginner in configuring mail delivery systems. Recently, orders came from the management that we need to send confirmation emails to our clients whenever they complete their applications (I work at a local college). Upon scrambling good ol'…
Minmin
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How to create a non-admin user in OpenBSD to be able to login as a root like in Linux-based systems?

Usually, in Linux-based systems I create new user without admin rights (sudo group). I'm able to login as that user via SSH and then, when I need admin rights, I can just, $ su root ...entering pwd... # whoami root In OpenBSD I can't login as a…
Emilien Vidal
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Is there anyway I can run an arm64 VM using Cockpit on a amd64 machine?

I am currently facing a challenge with integrating Cockpit on my AMD64 machine for managing both AMD64 and ARM64 virtual machines. I have successfully run an ARM64 machine on my AMD64 machine using QEMU, as demonstrated by the following…
aggarcia
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Updating the `/etc.ufw/before.rules` file to allow `ufw` firewall redirection

I need to Configure My Server so that the ufw firewall running on it can redirect port 8080/TCP to port 80/TCP. From quick research, I know I can do it in Two ways; one is to run a command similar to; sudo ufw allow 8080/tcp to port 80/tcp On my…
greez'
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how can i increase OS FS on CentOS?

we have CentOS server installed on 83GB FS size while the OS disk size is 480gb how can we increase the FS to use the whole disk (sda, 480gb)? [root@server ~]# df -kh Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg01-lvroot …
noamsh88
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Win 10 VM loses connectivity randomly. Hyper-v, SET teaming, Server 2022

Deployed a new hyper-v server a few weeks ago and during install I read that the old way of NIC teaming does not work anymore for vswitches inside of a hyper-v. It was replaced with SET Teams that need to be set up in powershell. Cool, no biggie I…
Ryan D
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How to delete shared network folder

I am the administrator and have all the necessary access rights but not able to delete. What should I do?
OSS IT
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How can my team use a single SuperPuTTY session file?

I work in a team that uses SuperPuTTY (on Windows) to connect to remote devices. We currently use our own session files, but not everyone notifies the team when a new device needs to be added/removed from our session files. How can my team use one…
M455
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How do I allow a device to only connect to certain wifi networks?

I have been assigned to a task that a laptop should be connected to particular wifi Network, i.e Laptop should not connect with any other wifi network other than office wifi. is that possible??? any help could be appreciated...
Kani
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How to change the super user after installation in Ubuntu?

I have taken over the system administration on an ubuntu system from someone else. I had an normal user account on this system before, that I am still using. The previous admin made me sudoer, so in principle I have almost all priviledges I need to…
hcr
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