tricks

Bookmarks for 24 Mar 2016 through 25 Mar 2016

These are my links for 24 Mar 2016 through 25 Mar 2016:

  • Coderwall | Dump all variables – For debugging purposes it can be useful to not just dump hostvars but also all other variables and group information. You can do this using a jinja template which you could include in a debug task
  • Using Ansible to create AWS instances | Tivix – Ansible is a great tool for enhancing productivity. With a vast array of modules to choose from, it can save you a lot of time by automating away common tasks. At Tivix we use it for single-command deployment, with the most common destination being Amazon EC2 instances created beforehand. Since Ansible is capable of managing EC2 resources, we can improve this setup by making a playbook to create an instance for us.
  • Home | OpenSCAP portal – The OpenSCAP ecosystem provides multiple tools to assist administrators and auditors with assessment, measurement and enforcement of security baselines. We maintain great flexibility and interoperability, reducing costs of performing security audits.
    The OpenSCAP project provides a wide variety of hardening guides and configuration baselines developed by the open source community, ensuring that you can choose a security policy which best suits the needs of your organization, regardless of its size.
    SCAP is U.S. standard maintained by National Institute of Standards and Technology (NIST). The OpenSCAP project is a collection of open source tools for implementing and enforcing this standard, and has been awarded the SCAP 1.2 certification by NIST in 2014.
  • Wazuh | Augmenting OSSEC Host IDS – Wazuh contributes to Open Source Security developing and integrating new modules to extend OSSEC capabilities and functionality.

Bookmarks for 19 ott 2015 through 26 ott 2015

These are my links for 19 ott 2015 through 26 ott 2015:

  • 10 URL Rewriting Tips and Tricks | RuslanY Blog – This post describes some of the tips and tricks that one may find useful when solving URL-based problems for their web server or web site. Each tip/trick has a description of a problem and then an example of how it can be solved with IIS 7 URL Rewrite Module.
  • svn-time-lapse-view – Subversion tool for quickly viewing all revisions of a file – Google Project Hosting – SVN Time-Lapse View is a cross-platform viewer that downloads all revisions of a file and lets you scroll through them by dragging a slider. As you scroll, you are shown a visual diff of the current revision and the previous revision. Thus you can see how a file evolved, and you can easily find the revision at which lines appeared, disappeared, or changed.
  • Windows PE – ThinkWiki – […] In this article we will explain how to create bootable CD-ROMs and USB-flash drives with WinPE using only free software [ via http://braindead.tumblr.com/post/130505318766 ]

Bookmarks for 27 feb 2015 through 28 feb 2015

These are my links for 27 feb 2015 through 28 feb 2015:

  • Excel: dieci errori da non fare – Excel è un programma molto utile, che fa risparmiare un sacco di tempo e di fatica a chi lo usa correttamente, ma che può facilmente trasformarsi in un buco nero del nostro tempo se usato male. Siccome mi capita di vedere che certi errori sono frequentissimi e fanno perdere un sacco di tempo inutilmente, elenco qui i più drammatici, a monito de li piccini.
  • websocketd – WebSockets the UNIX way Full duplex messaging between web browsers and servers
  • HTTP 2.0 – Tokyo – Google Slides –

Bookmarks for 2 dic 2014 through 3 dic 2014

These are my links for 2 dic 2014 through 3 dic 2014:

  • VPN over SSH – ArchWiki – There are several ways to set up a Virtual Private Network through SSH. Note that, while this may be useful from time to time, it may not be a full replacement for a regular VPN.
  • Simplify Your Life With an SSH Config File · Nerderati – If you're anything like me, you probably log in and out of a half dozen remote servers (or these days, local virtual machines) on a daily basis. And if you're even more like me, you have trouble remembering all of the various usernames, remote addresses and command line options for things like specifying a non-standard connection port or forwarding local ports to the remote machine[…]
  • SSH Tips and Tricks | LUG@GT – This presentation is updated from “SSH Tips and Tricks given on Wed. Feb 28th, 2007

Bookmarks for 8 lug 2014 through 11 lug 2014

These are my links for 8 lug 2014 through 11 lug 2014:

  • Tips & Tricks for the Command line of Linux – cfenollosa.com/misc/tricks.txt – I have marked with a * those which I think are absolutely essential Items for each section are sorted by oldest to newest. Come back soon for more!
  • Naming Schemes – A good naming scheme is scalable, unique, and easy to remember. The purpose of these naming schemes is to name networked servers, wireless access points or client computers, but it can also be used to name projects, products, variables, streets, pets, kids, or any other project where unique names and rememberable names are required.
  • SSD Cloud Hosting & VPS – MNX.io – Here at MNX, we’ve been busy setting up a brand new data center for our cloud hosted services. We started off as a consulting company providing managed Linux services, which means we have been exposed to a ton of different customer environments and an equal number of schemes for naming equipment…not all of them good. It’s a problem that goes back as far as computers have existed, and everyone has their own opinion on the “best” way to name hosts. Most methods start out fine at the beginning, but quickly become unwieldy as infrastructure expands and adapts over time.
  • Trello – Organize anything, together. Trello is a collaboration tool that organizes your projects into boards. In one glance, know what's being worked on, who's working on what, and where something is in a process.
  • Vim Awesome – AWESOME VIM PLUGINS from ACROSS THE UNIVERSE

Bookmarks for 3 lug 2014 through 8 lug 2014

These are my links for 3 lug 2014 through 8 lug 2014:

  • Top 5 Atom Editor features and tweaks | Grigio.org – un blog critico su Linux Ubuntu, Tecnologia e altro –
  • Hemingway – Hemingway App makes your writing bold and clear. Hemingway highlights long, complex sentences and common errors; if you see a yellow highlight, shorten the sentence or split it. If you see a red highlight, your sentence is so dense and complicated that your readers will get lost trying to follow its meandering, splitting logic — try editing this sentence to remove the red.
  • mpalmer/lvmsync – Have you ever wanted to do a partial sync on a block device, possibly over a network, but were stymied by the fact that rsync just didn't work? Well, fret no longer. As long as you use LVM for your block devices, you too can have efficient delta-transfer of changed blocks.
  • gerrit – Gerrit Code Review – Google Project Hosting – Gerrit is a web based code review system, facilitating online code reviews for projects using the Git version control system. Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer. Gerrit simplifies Git based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged in by hand by the project maintainer. This functionality enables a more centralized usage of Git
  • ranger – ranger is a file manager with VI key bindings. It provides a minimalistic and nice curses interface with a view on the directory hierarchy. The secondary task of ranger is to psychically guess which program you want to use for opening particular files.

Bookmarks for 15 mag 2014 through 2 giu 2014

These are my links for 15 mag 2014 through 2 giu 2014:

  • Babun | A windows shell you will love! – Would you like to use a linux-like console on a Windows host without a lot of fuzz? Try out babun!
  • OpenSSH – Wikibooks, open books for an open world – The OpenSSH suite provides secure remote access and file transfer. Since its initial release, it has grown to become the most widely used implementation of the SSH protocol. During the first ten years of its existence, ssh has largely replaced older corresponding unencrypted tools and protocols. The OpenSSH client is included by default in most operating system distributions, including OS X, Linux, BSD and Solaris. Any day you use the Internet, you are using and relying on dozens if not hundreds of machines operated and maintained using OpenSSH. A survey in 2008 showed that of the SSH servers found running, just over 80% were OpenSSH. [1] OpenSSH was first released towards the end of 1999. It is the latest step in a very long and useful history of networked computing, remote access and telecommuting. This book is for fellow users of OpenSSH to help them save effort and time through using OpenSSH, and especially SFTP, where it makes sense to use it.
  • ssl-cert-check » Linux Shtuff – […] Digital certificates have become an essential part of Internet commerce, and are widely used to verify the identity of clients and servers. All digital certificates contain an expiration date which most client and server applications will check before using the certificates contents. If a client or server application detects that a certificate has expired, one or more implementation specific actions (e.g., abort connection, check or update a revocation list, alert user, etc.) are typically performed.[…]

Bookmarks for 30 apr 2014 through 6 mag 2014

These are my links for 30 apr 2014 through 6 mag 2014:

  • Ralentir le débit de postfix pour wanadoo/orange – Le blog de Michauko – Si vous avez un serveur d’envoi de mails (je ne parle pas d’être un spammeur) et beaucoup d’abonnés chez Wanadoo et Orange, vous risquez fort le rejet temporaire de votre serveur si le débit d’envoi est trop fort. C’est ce qui m’est arrivé et hop, 5000 mails entassés dans la file de postfix.
  • smtp-in.orange.fr refused to talk to me: postfix solution | floriancrouzat.net – Orange sadly limits inbound connexion to it’s MX to 1 connexion per IP, which is a total pain in the ass when you try to deliver newsletter, or manage a MTA. Here is a sample log from their MX: Jul 4 10:42:42 smtp.example.com postfix/smtp[32347]: 0123456789: host smtp-in.orange.fr[193.252.22.65] refused to talk to me: 421 mwinf5c34 ME Trop de connexions, veuillez verifier votre configuration. Too many connections, slow down. OFR004_104 [104] However, since they won’t change anything, we have to take mesures, here’s what you can do if you run postfix: you have to set a per-destination concurrency limit.
  • Aral Balkan: Historical Archive — How to revert (roll back) to a previous revision with Subversion – Here, then, is a very simple, plain English explanation of how to revert to a previous version of your application in Subversion, to help anyone who may be starting out with it and is lost.
  • Tmux: A Simple Start – In all likelihood, you’ve probably already heard of tmux. However, you may not be using it everyday. If tmux is on your “Someday” list because you think it is too complicated (I mean, c’mon, the word “multiplexer” is just plain scary), then I am here to show you just how easy it is to put tmux into your workflow.
  • Tyblog | Yet Another Vim Setup – Vim is an excellent text editor. I’ve used it for many years and like most vim users, have collected a fairly large collection of settings in my .vimrc and learned how to grok my vim usage effectively through a lot of trial and error. To that end, I’ve tried to assemble a useful overview of my experience with vim.

Bookmarks for 18 apr 2014 through 30 apr 2014

These are my links for 18 apr 2014 through 30 apr 2014:

  • JoshData/mailinabox · GitHub – Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
  • SSH Multi-hop Connections With Netcat Mode Proxy | Click & Find Answer ! – Since OpenSSH 5.4 there is a new feature called natcat mode, which allows you to bind STDIN and STDOUT of local SSH client to a TCP port accessible through the remote SSH server. This mode is enabled by simply calling ssh -W [HOST]:[PORT] Theoretically this should be ideal for use in the ProxyCommand setting in per-host SSH configurations, which was previously often used with the nc (netcat) command. ProxyCommand allows you to configure a machine as proxy between you local machine and the target SSH server, for example if the target SSH server is hidden behind a firewall. The problem now is, that instead of working, it throws a cryptic error message in my face: Bad packet length 1397966893.Disconnecting: Packet corrupt
  • Tyblog | SSH Kung Fu – OpenSSH is an incredible tool. Though primarily relied upon as a secure alternative to plaintext remote tools like telnet or rsh, OpenSSH (hereafter referred to as plain old ssh) has become a swiss army knife of functionality for far more than just remote logins. I rely on ssh every day for multiple purposes and feel the need to share the love for this excellent tool. What follows is a list for some of my use cases that leverage the power of ssh.
  • Baseimage-docker: A minimal Ubuntu base image modified for Docker-friendliness – YOUR DOCKER IMAGE MIGHT BE BROKEN without you knowing it Learn the right way to build your Dockerfile.
  • NetApp – Index – The following documentation is a guide on using and configuring the NetApp servers, there is also a commandline cheat sheet. I have tried to make this section as brief as possible but still cover a broad range of information regarding the NetApp product but I point you to the Official NetApp web site which contains all the documentation you will ever need.