Tag Archive: Secure Shell

Aug 09

Google IP address ranges

Google IP address ranges Recently I decided to try the Google Compute Engine Cloud, and one of the things I liked right from the beginning was the ability to connect via SSH to your Ubuntu box. I am going to have to read a bit more about it but basically it seems like it generates …

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Mar 16

How to: Clone the mac address for the WAN interface on a Ubiquiti Unifi Security Gateway

How to: Clone the mac address for the WAN interface on a Ubiquiti Unifi Security Gateway Background Nowadays you somewhat expect that cloning a mac address on a gateway/router would be a basic feature… but as Apple has taught us we don’t know what we want even if we need it. But getting back into …

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Mar 16

How to: Launch a Process that Persists even if you Disconnect your ssh Terminal

How to: Launch a Process that Persists even if you Disconnect your SSH Terminal I’m not sure if this has happened to you before, but there are times when you have an application you wish to launch but if you disconnect from the terminal (SSH or physical) that process gets terminated. For example, currently I …

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Nov 17

Resolved: Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]} failed – POSSIBLE BREAK-IN ATTEMPT!

Resolved: Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]} failed – POSSIBLE BREAK-IN ATTEMPT! If you start looking at the SSH log: “/var/log/auth.log” you might come across a lot of “Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]} failed – POSSIBLE BREAK-IN ATTEMPT!” messages. In my case I only had login attempts …

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Feb 13

HowTo: Copy Files Over The Network using the Ubuntu Command Line

HowTo: Copy Files Over The Network using the Ubuntu Command Line As I continued to struggle in this GUI-less word, the need for transferring files over the network arose. I needed to get a lot of files from one place to another and I just simply didn’t know how to do it. Linux obviously offers a …

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Feb 13

General Commands Manual: Rsync

General Commands Manual: Rsync NAME rsync – a fast, versatile, remote (and local) file-copying tool SYNOPSIS   Local: rsync [OPTION…] SRC… [DEST] Access via remote shell: Pull: rsync [OPTION…] [USER@]HOST:SRC… [DEST] Push: rsync [OPTION…] SRC… [USER@]HOST:DEST Access via rsync daemon: Pull: rsync [OPTION…] [USER@]HOST::SRC… [DEST] rsync [OPTION…] rsync://[USER@]HOST[:PORT]/SRC… [DEST] Push: rsync [OPTION…] SRC… [USER@]HOST::DEST rsync …

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Feb 13

BSD General Commands Manual: SCP

SCP(1) BSD General Commands Manual SCP(1) NAME         scp — secure copy (remote file copy program) SYNOPSIS         scp [-12346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file] [-l limit] [-o ssh_option] [-P port] [-S program] [[user@]host1:]file1 … [[user@]host2:]file2 DESCRIPTION         scp copies files between hosts on a …

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Dec 21

How to: Connect to a Remote File System with Nautilus using SSH

How to: Connect to a Remote File System with Nautilus using SSH Nautilus supports connecting to a remote file system using an SSH connection. Before there used to be clear instructions but now it all has gone away with a more simple interface that has left some users confused. But fear not, all you have …

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