Language Selection

English French German Italian Portuguese Spanish

Today's Howtos:

Filed under
HowTos

Apache HTTP Server is a free software/open source web server for Unix-like systems, Microsoft Windows, Novell NetWare and other platforms. Apache is notable for playing a key role in the initial growth of the World Wide Web,and continues to be the most popular web server in use, serving as the de facto reference platform against which other web serversare designed and judged.

Apache features configurable error messages, DBMS-based authentication databases, and content negotiation. It is also supported by several graphical user interfaces (GUIs) which permit easier, more intuitive configuration of the server.

Install apache2 in Ubuntu server

sudo apt-get install apache2 apache2-common apache2-mpm-prefork apache2-utils ssl-cert

Apache2 web server Installation with php4 and php5 support in Ubuntu.


sysrqd is a tiny daemon aiming to control sysrq over network.SysRq stands for System Request, and this are functions mapped to keyboard shortcuts by the kernel. You can use them by pressing Alt+SysRq+[key] (SysRq might be named “Print Screen” on your keyboard),Permits to execute usual SysRq commands by network, like: sync, umount, reboot, poweroff, sak, term, etc. where key can be s (sync), k (sak), 0 to 9 (logging level), b (reboot), etc.

The goal of this keyboard sequences is too be available even if you can’t do anything on your box, because you screwed up everything, or because it’s crashed or under very heavy load.

sysrqd can help you to use SysRq keys when you are not in front of your box,and you need to do Emergency Sync, R/O remount and reBoot.

Manage Linux SysRq over network Using sysrqd


In this howto we will learn how to build a Dynamic DNS Server. Normally when we configure DNS, we use static entries to resolve any FQDN. If we are using DHCP in our network which gives dynamic IPs to every computer that turns on or requests one, then it is not possible to configure DNS statically. For that we should configure our DNS with DHCP in a manner that whenever a computer gets a new IP, its FQDN will be automatically updated with the new IP in DNS.

How To Configure Dynamic DNS on Fedora Core 4


Want to give your IT security or administrator staff access to Windows applications right in their preferred Linux desktop environment? Follow this tip and you can easily do this without needing to set up an expensive and complex Citrix environment. Also, did I mention that the following solution can be set up using free software?

Many network and security administrators want to use Linux as their operating system of choice due to the abundance of open source security tools available for Linux. But they still may need to run some Windows-only applications. So, their choices are to run a separate physical system or run Windows XP as a VM on VMware Virtual Server for Linux.

Running Windows as a VM on Linux with VMware Server


To install RPM files with Yast, simply type the following at the command line :

yast -i file.rpm

Afterwards you can easily remove these packages from within Yast.
If you downloaded source code from a program (tar.gz files) you can quickly make an RPM file from it to install it later on your or another pc (if dependencies are OK).

To do this...

Rpm Program Installation - Tips for openSuse10.2


More in Tux Machines

Security News

  • Tuesday's security updates
  • New Open Source Linux Ransomware Divides Infosec Community
    Following our investigation into this matter, and seeing the vitriol-filled reaction from some people in the infosec community, Zaitsev has told Softpedia that he decided to remove the project from GitHub, shortly after this article's publication. The original, unedited article is below.
  • Fax machines' custom Linux allows dial-up hack
    Party like it's 1999, phreakers: a bug in Epson multifunction printer firmware creates a vector to networks that don't have their own Internet connection. The exploit requirements are that an attacker can trick the victim into installing malicious firmware, and that the victim is using the device's fax line. The firmware is custom Linux, giving the printers a familiar networking environment for bad actors looking to exploit the fax line as an attack vector. Once they're in that ancient environment, it's possible to then move onto the network to which the the printer's connected. Yves-Noel Weweler, Ralf Spenneberg and Hendrik Schwartke of Open Source Training in Germany discovered the bug, which occurs because Epson WorkForce multifunction printers don't demand signed firmware images.
  • Google just saved the journalist who was hit by a 'record' cyberattack
    Google just stepped in with its massive server infrastructure to run interference for journalist Brian Krebs. Last week, Krebs' site, Krebs On Security, was hit by a massive distributed denial-of-service (DDoS) attack that took it offline, the likes of which was a "record" that was nearly double the traffic his host Akamai had previously seen in cyberattacks. Now just days later, Krebs is back online behind the protection of Google, which offers a little-known program called Project Shield to help protect independent journalists and activists' websites from censorship. And in the case of Krebs, the DDoS attack was certainly that: The attempt to take his site down was in response to his recent reporting on a website called vDOS, a service allegedly created by two Israeli men that would carry out cyberattacks on behalf of paying customers.
  • Krebs DDoS aftermath: industry in shock at size, depth and complexity of attack
    “This attack didn’t stop, it came in wave after wave, hundreds of millions of packets per second,” says Josh Shaul, Akamai’s vice president of product management, when Techworld spoke to him. “This was different from anything we’ve ever seen before in our history of DDoS attacks. They hit our systems pretty hard.” Clearly still a bit stunned, Shaul describes the Krebs DDoS as unprecedented. Unlike previous large DDoS attacks such as the infamous one carried out on cyber-campaign group Spamhaus in 2013, this one did not use fancy amplification or reflection to muster its traffic. It was straight packet assault from the old school.
  • iOS 10 makes it easier to crack iPhone back-ups, says security firm
    INSECURITY FIRM Elcomsoft has measured the security of iOS 10 and found that the software is easier to hack than ever before. Elcomsoft is not doing Apple any favours here. The fruity firm has just launched the iPhone 7, which has as many problems as it has good things. Of course, there are no circumstances when vulnerable software is a good thing, but when you have just launched that version of the software, it is really bad timing. Don't hate the player, though, as this is what Elcomsoft, and what Apple, are supposed to be doing right. "We discovered a major security flaw in the iOS 10 back-up protection mechanism. This security flaw allowed us to develop a new attack that is able to bypass certain security checks when enumerating passwords protecting local (iTunes) back-ups made by iOS 10 devices," said Elcomsoft's Oleg Afonin in a blog post.
  • After Tesla: why cybersecurity is central to the car industry's future
    The news that a Tesla car was hacked from 12 miles away tells us that the explosive growth in automotive connectivity may be rapidly outpacing automotive security. This story is illustrative of two persistent problems afflicting many connected industries: the continuing proliferation of vulnerabilities in new software, and the misguided view that cybersecurity is separate from concept, design, engineering and production. This leads to a ‘fire brigade approach’ to cybersecurity where security is not baked in at the design stage for either hardware or software but added in after vulnerabilities are discovered by cybersecurity specialists once the product is already on the market.

Ofcom blesses Linux-powered, open source DIY radio ‘revolution’

Small scale DAB radio was (quite literally) conceived in an Ofcom engineer’s garden shed in Brighton, on a Raspberry Pi, running a full open source stack, in his spare time. Four years later, Ofcom has given the thumbs up to small scale DAB after concluding that trials in 10 UK cities were judged to be a hit. We gave you an exclusive glimpse into the trials last year, where you could compare the specialised proprietary encoders with the Raspberry Pi-powered encoders. “We believe that there is a significant level of demand from smaller radio stations for small scale DAB, and that a wider roll-out of additional small scale services into more geographic areas would be both technically possible and commercially sustainable,” notes Ofcom. Read more

nginx

Case in point: I've been using the Apache HTTP server for many years now. Indeed, you could say that I've been using Apache since before it was even called "Apache"—what started as the original NCSA HTTP server, and then the patched server that some enterprising open-source developers distributed, and finally the Apache Foundation-backed open-source colossus that everyone recognizes, and even relies on, today—doing much more than just producing HTTP servers. Apache's genius was its modularity. You could, with minimal effort, configure Apache to use a custom configuration of modules. If you wanted to have a full-featured server with tons of debugging and diagnostics, you could do that. If you wanted to have high-level languages, such as Perl and Tcl, embedded inside your server for high-speed Web applications, you could do that. If you needed the ability to match, analyze and rewrite every part of an HTTP transaction, you could do that, with mod_rewrite. And of course, there were third-party modules as well. Read more

Linux and Open Source Hardware for IoT

Most of the new 21 open source software projects for IoT that we examined last week listed Linux hacker boards as their prime development platforms. This week, we’ll look at open source and developer-friendly Linux hardware for building Internet of Things devices, from simple microcontroller-based technology to Linux-based boards. In recent years, it’s become hard to find an embedded board that isn’t marketing with the IoT label. Yet, the overused term is best suited for boards with low prices, small footprints, low power consumption, and support for wireless communications and industrial interfaces. Camera support is useful for some IoT applications, but high-end multimedia is usually counterproductive to attributes like low cost and power consumption. Read more