All Questions

After an upgrade from Ubuntu 14.04 to 16.04 on my VPS done through SSH, SSH broke. do-release-upgrade always ended up with some package error, so I left it as it was. Client was left open, after ~12 ...

I'm seeing strange behaviour with setfacl setting the eXecute bit on the group permission for files in some situations, confirmed on CentOS 7. As user root with unmask 0002: mkdir foo touch foo/bar ...

I'm trying to configure the selfservice network on Openstack Wallaby, running on Ubuntu Server 20.04. I have followed the instructions for everything under the "Minimal deployment for Wallaby&...

For some reason certain messages, only for some users, are showing up either partially or totally blank and are not selectable. The mail server is not self hosted (migadu.com), only Squirrelmail (v 1....

I have a PHP script that generates 100s of directories and in these directories contain CSV files. I'm able to protect these CSV files using AuthUserFile if it points to an absolute .htpasswd file, ...

I wonder how you can link two A6000 cards as shown in this picture from PNY: Dual PNY RTX A6000 connected by NVlink I mean, it looks like one of the cards cannot get air because of the second one. How ...

What I should be looking for when trying to enable Jumbo Frames in networks that relies on PXE for server booting? As far as I know I must have: Network switch capable of MTU >= 9000 The ability ...

I have an EKS cluster with a nodegroup consisting of a couple of t3.small EC2 instances. I want to switch to t4g.micro instances (double the amount of instances) because it will be cheaper. My ...

Just instaled SSSD using this guide to get active directory authentication working on Ubuntu 18.04.5 LTS. It worked for our first server, but for whatever reason the one i'm trying to install on next ...

We have a Ubuntu Docker container that runs a SSH server that we are trying to port over to Red Hat 8.4. I am trying to install the openssh-server package using the dnf package manager via my ...

I am retiring an old server and want to delete the printers from the workstations that are mapped to this server. Has anyone written a batch file that would have a variable (i.e. %server) that could ...

I'm running an nginx reverse proxy to be able to run multiple servers behind my firewall. I noticed on my (Kerio) mail server the error log is filled with "failed login from < local ip of ...

I am trying to find a solution to dynamically filter network packets with strict timing constraints and based on a IP list on a Linux Operating System I cannot install additional software of modify ...

I want to re-route all incoming traffic on interface ens4f0 to IP address 192.168.50.10, but Wireshark is showing that the destination IP address on incoming packets is unchanged. Is this the expected ...

I have a Dell PowerEdge R720 and it only has one place in the back to plug in a network cable. But it has 5 possible network interfaces: picture of ip link show But they are all DOWN when i run ip ...

I can use log analyzers, but often I need to parse recent web logs to see what's happening at the moment. I want to write command for longest duration requested page how should i do that?? my example ...

I assigned 10Gb of ram to my VM but inside the VM it mentions that it has allocated all the ram available in my server (48). Why is this happening? I have a windows VM aswell and there it just shows ...

My current implementation is as follow: In front, an AWS Load Balancer (Network TCP/UDP type) on dual-stack, that redirects to a fleet of EC2 instances These EC2 instances are running HaProxy to ...

I have a website which is on Wordpress www.old.example.com and on its own IP/Server 10.1.1.1 It has various pages which are ranked on google which I'd like to preserve. I have a new website www.new....

This is my first time using nginx and I'm finding this situation quite puzzling. My website is hosted at web.example.com and in order to reach the backend, requests are routed though nginx as a ...

At work, we wanted to migrate our domain controller to an azure VM. Azure AD and Azure AD DS doesn't fulfill our needs. Like GPO etc.. Well, let's say : I had 3 windows clients : CL1 (win10), CL2(...

I have a raspberry pi which a bridged wireless access point with 3 interfaces: wlan0 eth0 br0 br0 is a bridged wireless access point to wlan0 eth0 is connected to the a router (internet) How can i ...

I created a password protected files using .htaccess and .htpasswd, but it doesnt show up when I goto the URL. I have this in my htaccess: #Protect multiple files <FilesMatch "^(.*).csv$"&...

could use a pointer on this one. We have UEV setup in a VMWare Horizon 7 environment. Settings Storage Location is on a FreeBSD based NAS that is bound to AD. We have a situation where ONE user's ...

I have a very specific testing situation where I want to use a forward proxy like so: Client -> Forward Proxy 1 -> Forward Proxy 2 (WireMock) | ...

On the Cisco UCS www page for the given POD, I can see what Fabric is used for a given vNIC. But how can I query inside, from the OS (ex.: SLES12 or Windows server) that what ethX (NIC) if from/via ...

I'm working on a project where clients exchange data with services. We designed a proxy between the service and the client that anonymizes the user's data so anyone breaching into the database would ...

I need to do some consolidation on my company's Azure estate, especially around App Service Plans. In the past, we would typically create a new App Service Plan for each service we deployed as this ...

I'm using squid 3.5.20 on centos. I send a curl request to bigquerry directly whithout squid proxy, i have a response after 8 minutes. Now when i launch the same curl request through the squid proxy, ...

enter image description here ansible-playbook -v -i Monitoring/hosts Monitoring/main.yml [WARNING]: log file at /var/log/ansible.log is not writeable and we cannot create it, aborting Using /etc/...

Let's start by setting the scene -- I'm a junior systems administrator tasked with conducting a transition of the company towards a "Least-Privilege" model. This includes removing admin ...

Helo, when I run a mysql dump I noticed that the webserver does not deliver any requests. The CPU is not fully occupied. Is this normal behavior? Thanks, a lot.

Assume an internal SATA hard drive named "Samsung-XYZ" with one partition called "Backups" is connected to a PC. If the drive is removed (while the PC is powered down), will the ...

I want my service to start only if another service is not active. To do so, as explained in this other question, I am going to do: ExecStartPre=/bin/bash -xc '/usr/bin/systemctl is-active --quiet ...

Somebody shared with me a project and now when I try to delete it OR HIDE it I cant do that. Does anybody knows how to hide that project from my list of projects? I'm not interested to see it anymore....

I have a set of machines identical in hardware, and almost identical in softare setup. But one of them is filling up /var/log/messages with: Jun 16 09:41:37 h0stname kernel: pciehp 10000:00:00.0:...

There are two servers located in a different data center. We want to make active active cluster with keepalived and ipvsadm. So it is possible. Or it works only in the same data center?

what is "root+:"|sleep 5 #" in SMTP, I have found this line in dataset of SMTP protocol I have attached a picture of dataset, any one who can help me by explaining whats happening in it....

I have a DL380G6 with p410i controller (windows OS). HDD Config is: SAS Array A - 1 logical drive, RAID 5 SAS Array B - 1 logical drive, RAID 1 (2 x 450GB HDD) SAS Array C - 1 logical drive, RAID 1 (...

in /etc/exports I have: /home XXX.XXX.XXX.128/25(rw,no_subtree_check,root_squash) 192.168.1.0/24(rw,no_subtree_check,root_squash) /home/user XXX.XXX.XXX.128/25(rw,no_subtree_check,root_squash) 192....

i'm facing a strange request my client have done to me and i would like some help. He ask me to put a probe in promiscuous mode in my ced between my network and the mpls than connect us and them for ...

I have an a Windows 2016 VM on Azure that several users are RDPing into. The users are complaining that the VM shuts down at random times. When I check the logs, it shows that the shutdown has been ...

On my test server which I have docker-run gitlab-ce, redis server and some other important services, I noticed I have an uninvited guest, kdevtmpfsi. I tried everything proposed by the community but I ...

As per this answer, which says that: No all 127.0.0.1 traffic never hits the physical network, it gets processed by a loop back adapter in the kernel. The poster has a high reputation. I think all ...

I'm currently struggling with my Juniper Switch Stack. Topology is like this Topology The Client Ports on the Stack are configured as tagged-access with dot1x (multiple supplicant) and they switch ...

I currently run Ubuntu 20.04 Desktop server. And I am using the SFTP function by installing OpenSSH on the server. For testing purposes, I temporarily created a directory called /home/mydirectory/...

I am trying to push a docker image into my container registry on google cloud platform. I am able to build my image successfully on my local machine. I tried the following command: sudo docker push eu....

I inherited a server from another dev that left. And the hosting is telling me to remove all these firewall rules, because these can cause security problems. Not sure if I'm understanding this ...

I'm trying to set up my Pi Zero (w/ camera connector) to be a USB plug-in gadget. I've seen that it's possible, for example, here: https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-...

I know there are three kinds of events we can use for scripting in ISC dhcpd -- commit, expire and lease. My problem is, I am having a little problem in understanding the "commit" event. I ...