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felosi's blog

How to install ffmpeg on centos/rhel, The simple way!

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Howtos

Easy way to get ffmpeg going on your box. Source : http://nix101.com/2007/06/07/how-to-install-ffmpeg-on-centosrhel/

Quick way to stop apache and connect floods with csf

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Howtos

Quick and simple way to mitigate small to large apache floods. source : http://nix101.com

Grsecurity Patched Kernel Install Script For Redhat based Pentium 4 servers

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Howtos

After a lil work getting the config right for s hosting/shell server I finally came up with the script that will patch, compile, and install the gresecurity patched kernel. You just run the shell script and it will download the kernel and patch, patch the kernel, download the config, and then compile and install.

The config I got made up is for Pentium4/Xeon/Celeron based servers.

Looking for people to share server with

Filed under
Just talk

The last few months I have been using a server for security research, kernel testing, mod security rules testing, firewalls, dos protection, you name it. As well as to host my ircd and site. We basically have the server for development and testing although it is ran just like any other hosting server. In order to do the research we do we must keep a server.

Cpanel Wins for Security, A Short Review

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Reviews

This is a short review I wanted to write about cpanel. I never have been the greatest fan of it since it is only compatible with apache1 and all but after using other control panels I realized how secure and practical cpanel is for a multiple user server and hosting enviorment.
Read it here http://www.evolution-security.com/modules.php?name=News&file=article&sid=291

CentOS and Redhat, Best for the Server

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Reviews

Short review of CentOS and Red Hat and how Ubuntu is not gonna push anyone out of the server and enterprise market especially these two.

Fix Apf ipt_state error on new kernels

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Howtos

For those using apf on the new kernels and getting ipt_state error, since 2.6.15 they changed the name of them kernel modules and apf does not recognize them. Do not enable monokern as some people suggest, this will screw up your passive ftp and will not work good

GrSecurity Kernel Script

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Howtos

GrSecurity kernel upgrade and patch script. Downloads the 2.6.17.7 kernel and the latest grsecurity patch and then unpacks and patches the kernel, after that it tells you what to do next.

Mod Security rules.

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Howtos

After extenisve testing I have found what I think are the best mod security rules you can have for a basic server with average php scripts.

Quick Guide to Securing a Lamp Server

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Howtos

In the last few years on the Internet the price of dedicated servers have went down and more people are beginning to use them for their sites, game servers, or small hosting companies. With this comes as I was talking about in my last article inexperienced admins. Lots of people I spoke too are too intimated by the linux shell and try to administer their server completely from the control panel.

HOWTO: Installing Grsecurity patched kernel in debian/ubuntu

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Howtos

Walkthrough for compiling and installing grsecurity patched kernel on debian based systems.

first post- kernels and whatnot

Filed under
News

Well I signed up at the site after I seen they posted on of my howtos which I am thankful for. It was the one on the grsecurity patched kernel. I think it should help quite a few people as there are so many local root exploits out now and most distro's security and dev teams are doing nothing about it.

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More in Tux Machines

Wine and Games for GNU/Linux

  • Wine 3.13 is out as well as DXVK 0.63 for D3D11 with Vulkan
    First of all the latest Wine development release is out with Wine 3.13 and on top of that DXVK for Vulkan-based D3D11 in Wine also release version 0.63.
  • Feral's GameMode 1.2 Released For Optimizing Linux Gaming
    For what just started out as a tool to ensure you are using the "performance" frequency scaling governor when running Linux games, Feral's open-source GameMode system tool has slowly been picking up some extra functionality. Out this weekend is Feral GameMode 1.2 as the newest release. GameMode 1.2 adds configuration options about the default and desired governors, now supports soft real-time scheduling on kernels with SCHED_ISO support and will then use renice to boost games to a higher priority, the GameMode service is now D-Bus activated than needing to be explicitly enabled by systemd, and the GameMode libraries are now properly versioned.
  • Stardew Valley multiplayer just got a PC release date
    Since the moment Stardew Valley launched back in 2016, multiplayer has been one of the most anticipated additions to the games. After a period of beta testing, it’s nearly ready to roll out on PC, Mac, and Linux. While it probably isn’t going to look a lot different from the beta that’s currently available, this is exciting news for more reasons than one.
  • Multiplayer is coming to ‘Stardew Valley’ on PC, Mac and Linux
    According to a tweet from Eric Barone (@ConcernedApe), the sole developer behind Stardew Valley, the feature is coming to the lighthearted farming game on August 1st. Along with the release date, the game’s developer also released a new trailer for the feature (see it above).
  • 'Stardew Valley' multiplayer arrives on PC, Mac and Linux August 1st

Android Leftovers

Jonathan Dieter: Small file performance on distributed filesystems - Round 2

Last year, I ran some benchmarks on the GlusterFS, CephFS and LizardFS distributed filesystems, with some interesting results. I had a request to redo the test after a LizardFS RC was released with a FUSE3 client, since it is supposed to give better small file performance. I did have a request last time to include RozoFS, but, after a brief glance at the documentation, it looks like it requires a minimum of four servers, and I only had three available. I also looked at OrangeFS (originally PVFS2), but it doesn’t seem to provide replication, and, in preliminary testing, it was over ten times slower than the alternatives. NFS was tested and its results are included as a baseline. I once again used compilebench, which was designed to emulate real-life disk usage by creating a kernel tree, reading all the files in the tree, simulating a compile of the tree, running make clean, and finally deleting the tree. The test was much the same as last time, but with one important difference. Last time, the clients were running on the same machines that were running the servers. LizardFS benefited hugely from this as it has a “prefer local chunkserver” feature that will skip the network completely if there’s a copy on the local server. This time around, the clients were run on completely separate machines from the servers, which removed that advantage for LizardFS, but which I believe is a better reflection on how distributed filesystems are generally used. I would like to quickly note that there was very little speed difference between LizardFS’s FUSE2 and FUSE3 clients. The numbers included are from the FUSE3 client, but they only differed by a few percentage points from the FUSE2 client. Read more

GNOME 3.30 Desktop Environment to Enter Beta on August 1, GNOME 3.29.4 Is Out

With a two-day delay, the GNOME Project through Javier Jardón announced today the release of the fourth and last development snapshot of the GNOME 3.30 desktop environment before it enters beta testing next month, GNOME 3.29.4, which continues to add improvements to various of GNOME's core components and applications. However, due to the summer vacation and the GUADEC conference, GNOME 3.29.4 isn't a major snapshot as many would have expected. It only adds some minor changes and bug fixes to a handful of components, including GNOME Shell, Mutter, Evolution, GNOME Photos, GNOME Builder, GNOME Online Accounts, Polari, Bijiben, Evince, Epiphany, Baobab, GNOME Control Center, and File Roller. Read more Also: GNOME 3.29.4 Released As Another Step Towards GNOME 3.30