@Obsolesce said in Ubuntu Adjust Screen Brightness: @scottalanmiller said in Ubuntu Adjust Screen Brightness: @Obsolesce said in Ubuntu Adjust Screen Brightness: @scottalanmiller said in Ubuntu Adjust Screen Brightness: @CCWTech said in Ubuntu Adjust Screen Brightness: @scottalanmiller said in Ubuntu Adjust Screen Brightness: On Ubuntu 19.10, there is a brightness setting on the power screen in settings. But it doesn't seem to do anything. You can slide it, but nothing happens. Anyone having luck adjusting screen brightness on Ubuntu? We've tested on multiple machines, all seem the same. Both Nvidia and AMD cards same lack of adjustment. Running 19.10 and I don't even have a brightness setting at all. I have it, but it affects nothing. Laptop or desktop monitor? I can't imagine it working on anything but a laptop. Desktop That's why. I know of no OS that controls monitor brightness unless it's a laptop/tablet/phone/etc. Never an external monitor with separate power source. Me either, but @CCWTech was asking for it. I've never looked for it before. No idea what it should do in that situation.

@stacksofplates said in Installing Hugo Static Website Generator on Linux: @scottalanmiller said in Installing Hugo Static Website Generator on Linux: @stacksofplates said in Installing Hugo Static Website Generator on Linux: @scottalanmiller said in Installing Hugo Static Website Generator on Linux: However, they don't have any standard Linux install documentation on their website and only show using Homebrew, a MacOS package that essentially no one on Linux uses. Very odd. I just looked. I'm not sure what you're talking about. The page clearly shows snaps, dnf, apt, pacman, eopgk, and pkg_add for OpenBSD. https://gohugo.io/getting-started/installing Completely different than what I got from the same link this morning. I went to that page, clicked on Linux, and they only showed Brewlinux, which isn't even the current name of the system. Way back machine shows it's been there since at least the 13th. https://web.archive.org/web/20191113183617/https://gohugo.io/getting-started/installing/ Very weird. I wonder if it was a cache somewhere? I definitely poked around this morning and Linuxbrew was the only thing that it had and had it from every link that I tried on their site.

@black3dynamite said in Blank Screen After Fedora 30 Update to 5.3.5 Kernel on Dell Inspiron Laptop: @scottalanmiller said in Blank Screen After Fedora 30 Update to 5.3.5 Kernel on Dell Inspiron Laptop: @black3dynamite said in Blank Screen After Fedora 30 Update to 5.3.5 Kernel on Dell Inspiron Laptop: @scottalanmiller said in Blank Screen After Fedora 30 Update to 5.3.5 Kernel on Dell Inspiron Laptop: @notverypunny said in Blank Screen After Fedora 30 Update to 5.3.5 Kernel on Dell Inspiron Laptop: I've lost track of which distros are using which backends for graphics, but could it be related to xorg vs wayland or something along those lines? Seems kinda of likely, but can't track it down. Your desktop environment is Cinnamon? Fedora Workstation and I believe RHEL 8 and CentOS 8 that uses GNOME3 is about the only distros that defaults to wayland. It is, yes. F30 with Cinnamon. The F31 that worked was Gnome 3. Are you planning on trying F31 with Cinnamon? And it worked fine. Doing the F31 update fixed it.

@black3dynamite said in Ubuntu Updates to 19.10: @Emad-R It's all great having numbers and visual aid to show results but will you really notice the difference when using Ubuntu compare Debian, assuming you are using the same desktop environment? That's the tough comparison. Ubuntu has more features and a different desktop. I specifically like Ubuntu's desktop. So going to Debian I'd likely modify it to the point of being Ubuntu, lol.

New-PSSession -ComputerName Host1 New-PSSession -ComputerName Host2 Get-PSSession will show all sessions you created. Use Enter-PSSession to enter one of your opened session

@Emad-R said in Install OpenVas9 in Ubuntu Server: @dbeato the thing is openvas versions is all over the place, dont they have a new version 10 right now, a month ago it was on 8 . It was 8 then 9 and the 10 version is GVM. I am testing it still but hasn’t been stable for me yet.

@scottalanmiller said in Tracking Down Ubuntu BASH Session Closing: @matteo-nunziati said in Tracking Down Ubuntu BASH Session Closing: @scottalanmiller said in Tracking Down Ubuntu BASH Session Closing: If I use zsh, I'm good. If I enter BASH from zsh, I get kicked out after several seconds. Definitely is something to do with BASH. Stupid tryout: use bash and then enter zsh before being kicked out. Still out? To understand if it is the firing of bash itself or the stay in bash... No, the underlying bash remains until the ZSH closes. Same as if you were running top from it, for example. So basically bash is able to run long running jobs with your user... It's the interactivity with the shell to be broken... Meh. Sorry the thread is long, did you mention any test from zsh with: Bash <-- ok this kills the session Bash -i any difference??? Bash -l ??? bash --norc bash --noprofile From bashman page

I know you were just explaining how to do it but this is a simple task with Ansible. - name: Ensure user exists user: name: Joe state: present password: "password_hash" groups: wheel, libvirt Instead of needing the hash up front you can do things like: {{ Password1234 | password_hash('sha512') }}

We got it. Had to open the Nginx logs and noticed too many "posts" in the error log. Dug in and it was three ranges overseas all hitting with a "post timeout attack." It was a light DDoS where sessions were being opened and held causing nginx to wait on a timeout. This caused Apache to just increment forever. Once we blocked those ranges, the Apache thread count started to drop for the first time, and memory started to release. And the continuous flood of nginx error logs ceased. If you are looking at nginx error logs, this is what you look for: upstream timed out (110: Connection timed out) while reading response header from upstream, client: You can use this command to collect the offending IP addresses: grep "upstream timed out" error.log | cut -d' ' -f20 Then use your firewall to shut them down. We are all good now! Woot.

Well let's talk about fedora and updating killing a laptop lol....

@zachary715 said in Linux Options for Dell PowerEdge 2950 II: Just curious what role this server will be playing... Web server

FLAMP >

And it should be noted, that unlike SMB or NFS shares that would be generally frowned upon to use over the Internet, SFTP is heavily encrypted and very secure and is often used over public networks.

@wirestyle22 said in Wazuh Manager Install - Ubuntu: A few things: The manager label is wrong. It says manger instead of manager. @IRJ said in Wazuh Manager Install - Ubuntu: Install Filebeat There are two entries for "Install Filebeat" I tried to install Filebeat going command by command and it can't find it. Thanks I fixed the guide. What you need to do is this: #*********************************************************** #Install GPG keys and add repository #*********************************************************** curl -s https://artifacts.elastic.co/GPG-KEY-elasticsearch | apt-key add - echo "deb https://artifacts.elastic.co/packages/6.x/apt stable main" | tee /etc/apt/sources.list.d/elastic-6.x.list #*********************************************************** # APT Update #*********************************************************** sudo apt update #*********************************************************** #Install Filebeat #*********************************************************** sudo apt install -y filebeat=6.7.1 #*********************************************************** #Download Filebeat config file to forward logs #*********************************************************** sudo curl -so /etc/filebeat/filebeat.yml https://raw.githubusercontent.com/wazuh/wazuh/3.8/extensions/filebeat/filebeat.yml #*********************************************************** #Edit Filebeat config file to point to Elastic Server IP (In this lab environment I am using 127.0.0.1) #*********************************************************** sed -i 's/YOUR_ELASTIC_SERVER_IP/192.168.122.181/' /etc/filebeat/filebeat.yml #*********************************************************** #Start Filebeat service and configure it to automatically start at boot #*********************************************************** sudo systemctl daemon-reload sudo systemctl enable filebeat.service sudo systemctl start filebeat.service make sure to change 192.168.122.181 with your ip or localhost if you are using a single server for wazuh and ELK

@black3dynamite said in Cannot boot to LUKS encrypted drive on Ubuntu - freezes after unlocking drive: @travisdh1 Is it possible that AppArmor installed by default on all ubuntu installation? Having AppArmor and SELinux both active can cause problems. I'd love to hear a bit more about apparmor. I am not familiar with it at all. This should be a new thread.

@black3dynamite said in Setting Up a Standard MySQL or MariaDB Database for an Application: @JaredBusch said in Setting Up a Standard MySQL or MariaDB Database for an Application: I like my approach to setting this up. Obviously, install MySQL/MariaDB first as noted above. Then do the following. This all needs done in the same SSH session, but otherwise things are simple. Choose once of these exports for your DB root password. The first one is for you to specify, the second generates a random one and echo's it back to you. # Specify your own password for MariaDB root user export DB_ROOT_PASS="somebigpasswordgoeshere" # Generate a random password for MariaDB root user export DB_ROOT_PASS="$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30)" echo "This is your MariaDB root password: $DB_ROOT_PASS" Specify the application database name and application user name # Database user to use for application export DB_USER='yourusername' # Database name to use for application export DB_NAME='yourdatabasename' Generate or specify a random password for the database user # Specify your own password for the application's database user export DB_PASS="somebigpasswordgoeshere" # Generate a random password for the application's database user export DB_PASS="$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30)" echo "This is your password for the application user: $DB_PASS" Then create the application database, use, and grant access. mysql -e "CREATE DATABASE $DB_NAME;" mysql -e "CREATE USER '$DB_USER'@'localhost' IDENTIFIED BY '$DB_PASS';" mysql -e "GRANT ALL ON $DB_NAME.* TO '$DB_USER'@'localhost';" mysql -e "FLUSH PRIVILEGES;" Finally, lock down the system without the interactive requirement of mysql_secure_installation # Secure MariaDB (this does what mysql_secure_installation performs without interaction) mysql -e "UPDATE mysql.user SET Password=PASSWORD('$DB_ROOT_PASS') WHERE User='root';" mysql -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');" mysql -e "DELETE FROM mysql.user WHERE User='';" # Beginning on some version of MariaDB after Fedora 29 was released, the test DB is no longer there by defualt. mysql -e "DROP DATABASE test;" mysql -e "FLUSH PRIVILEGES;" Your approach makes it easier to use as part of a script. It also generates random passwords, which I prefer.

@Emad-R said in Ubuntu: history -c doesn't clear: @gjacobse you can disable history all together if you want, https://www.cyberciti.biz/faq/disable-bash-shell-history-linux/ Thank you, I have seen that. But I use history as a track of what I have installed and how I did it. I clear it periodically once I have exported it to a text file. I do this also to share with my brother - as he's asked me how I've done something a number of times.

@scottalanmiller said in Ubuntu: System Program Problem detected: That's a desktop pop up, but Ubuntu 18.04 LTS. Why the combination of old Ubuntu, but a desktop? Why 18.04 - Well,.. very long obtuse story cut short. having re-installed Ubuntu a time or two due to software / boot issues, I hadn't upgraded to 'save time and stress.' I felt not push to upgrade to 18.10 if I had to yet again kill and install the system. However, things appear stable - so upgrading currently. I do see on the article, that the crashes could be past - and as such, i can delete the files (several days old) and move on.