How to forward a port from one machine to another?
Consider the following situation:
Unix & Linux
How can I print well formatted code
Similar to using markdown on Stack Overflow to create monospace output, how can I do that for my programs.
SSH port forwarding via jump host, ssh_config files and ONLY “ssh targethost”
NB: The OpenSSH clients I am using are all at version 7.2, so no RemoteCommand available.
Looking for the right way to rename the GRUB boot entries
I am taking about the naming of existing/default GRUB boot entry. Currently I’ve the following options at GRUB screen:
Create sub-directories and organize files by date
I have some directories of files copied from my security camera that I would like to organize into sub-directories by file date. So for example;
How do I know which processors are physical cores?
I’ve got an Intel i7 2700k here, and I’d like to know how I can tell which processors are physical and which are virtual (ie: hyperthreading). I’m currently running a Conky script to display my CPU temps, frequencies, and loads, but I’m not sure that I’ve done it right:
Find out network traffic per IP
We have one central server which functions as an internet gateway. This server is connected to the internet, and using iptables we forward traffic and share the internet connection among all computers in the network. This works just fine.
Move every file that is not a directory
I have a directory that I am trying to clean out that contains both files and subdirectories. What I am trying to do is simple: move all the files into another directory, but leave all the sub-directories as they are.
Disable Spectre and Meltdown mitigations
Can I disable Spectre and Meltdown mitigation features in Ubuntu 18.04LTS?
How do I test to see if an application exists in $PATH?
I’m trying to write all of my sh startup/env scripts to work with as much DRY and as much: “works on every *nix I clone it to”, as possible. This means making sure that if I try to run code that’s not there, that the code fails gracefully. To that end I need to be able to test if programs exist. I know how to test if a file exists, but I’m not sure how to test to see if an application is executable within the path. I’d rather use the $PATH, as some of these need to work on arch, ubuntu, and centos. Some might be installed in my homedir, on systems where I don’t have root, others might not be installed, and others yet my be installed in system paths.