Showing posts with label linux. Show all posts
Showing posts with label linux. Show all posts
Monday, July 24, 2017
Disable password expiration policy in Linux
Disable password expiration policy in Linux
If you dont want your users password expired after an amount of time, you can run this command:
# chage -I -1 -m 0 -M 99999 -E -1 username
It will set:
- Minimum Password Age to 0
- Maximum Password Age to 99999
- Password Inactive to -1
- Account Expiration Date to -1
Sunday, July 23, 2017
Deutscher Linux Support
Deutscher Linux Support
Die Email und Nummer findet Ihr hier.
Habe mich f�r das Blackberry entschieden, wegen der Tastatur, der langen Akkulaufzeit und nat�rlich dem Preis. Zus�tzlich eine Simkarte mit einer Datenflatrate, damit ich bei Bedarf auch das Smartphone mitnehmen kann. Dieses Ger�t wird ausschlie�lich f�r den Support genutzt!
Werde es jetzt unter den Monitor legen, damit ich die LED immer gut sehen kann. 2-3 Tage auf eine Antwort warten f�llt somit weg ;)
Diffusione di GNU Linux cosa è cambiato in 5 anni
Diffusione di GNU Linux cosa è cambiato in 5 anni
Nel lontano 2011 scrissi un articolo dal titolo Diffusione di GNU/Linux: di chi � la colpa? dove analizzavo le cause della mancata diffusione dei sistemi operativi GNU/Linux in ambito desktop.
Sono passati ormai cinque anni da quel post e le cose non sono ahim� cambiate e i principali problemi continuano a restare.
Ma andiamo a rianalizzare i problemi che segnalavo nel vecchio articolo.
Lhardware & driver
Il riconoscimento dellhardware � ancora nel limbo. Se avete un prodotto recente non sar� pienamente supportato, se avete uno troppo vecchio potreste trovarvi nella stessa situazione.
Continuano poi i problemi con i driver video che spesso non sono allaltezza della controparte Windows e ci si trova a doversi accontentare delle prestazioni non al top. Questo si vede maggiormente nei giochi ma ci sono anche problemi di compatibilit� per quanto riguarda la gestione dei windows manager dei principali desktop environment: alzi la mano chi non ha mai avuto problemi di tearing video, sia nella riproduzione di filmati che nel muovere semplicemente una finestra di una qualche applicazioni. I fix per questi problemi ci sono, io ne ho catalogati alcuni per le schede nVidia, ma c� sempre da dover smanettare. Ci sono poi casi pi� sfigati come il mio, che mi ritrovo con una scheda video nvidia che ha problemi con GNOME e derivati, problemi che a meno di workaround drastici, mi impediscono di usare i suddetti desktop.
Cambier� mai tutto questo? Difficile dirlo perch� dipende sempre dalla volont� dei produttori e dal futuro dei successori di Xorg: si, successori, perch� abbiamo sia Mir (portato avanti da Canonical) che Wayland (portato avanti dal resto del mondo). Chi la spunter�? Chi vincer� larmatura doro? Chi ci liberer� dai problemi con le schede video?
Chi vivr�... vivr�...
Le killer application
Dal 2011 ad oggi sono arrivati i software professionali? Ni. Dico ni perch� lunica cosa che si � mossa � lato CAD 2D che, grazie allarrivo di DraftSight (disponibile anche in versione gratuita con alcune limitazioni tipo limpossibilit� di lavorare direttamente con i PDF importati) e BricsCAD (a pagamento ma con costi umanamente sostenibili).
Il resto dei software ancora latita e, in caso di stringente necessit� nelluso di un software specifico, ci si deve accontentare di usare Wine e sperare di non avere problemi nellemulazione (e lo sappiamo che shit happens).
Lato killer application possiamo includere i giochi ma Steam, a quanto pare, non riesce ancora a decollare su piattaforma Linux, vuoi per la mancanza di titoli tripla A che per i soliti problemi di prestazioni dei driver video.
I grandi utenti e la Pubblica Amministrazione
Qui ci sono alti e bassi. Da un lato abbiamo importanti progetti di migrazione sia a livello globale che italiano con LibreItalia sta portando avanti il progetto di migrazione del Ministero della Difesa o la dichiarazione di intenti del Comune di Roma, dallaltro stiamo assistendo ad alcune inversioni di tendenza come quella della Regione Emilia Romagna che � passata ai servizi cloud di Microsoft oppure i passi indietro da alcuni paventati (ma � da verificare) che si stanno avendo nel Comune di Monaco di Baviera (fra i pionieri delle migrazioni nelle pubbliche amministrazioni) alle decisioni di stati come il Brasile che stanno abbandonando la strada intrapresa nelle amministrazioni precedenti. Speriamo soltanto che il piano di migrazione a LibreOffice della Difesa Italiana prosegua senza intoppi dopo la recente decisione di migrare il parco computer della Difesa a Windows 10. Per avere una panoramica di quello che si sta facendo vi invito a cercare sul blog il tag Pubblica Amministrazione.
La piccola utenza
Qui, da quanto vedo in lungo e in largo, si � avuta una flessione nelladozione di Linux nella piccola utenza. Il motivo principale? Windows 10. Tocca ammetterlo, a parte i problemi legati agli aggiornamenti forzosi e alle accuse legate alla lesa maest� della privacy degli utenti quelli di Microsoft hanno fatto un buon lavoro con Windows 10 e su alcune macchine datate (ho sperimentato in prima persona su diversi PC) Windows 10 gira meglio dei desktop environment pi� famosi.Resta poi lassenza in commercio di computer equipaggiati con sistemi Linux e quindi la piccola utenza si trova, anche nel nuovo, ad abbracciare il sistema operativo di casa Microsoft.
La logica del castello e la frammentazione
Nel vecchio articolo avevo coniato la teoria della logica del castello. In cosa consiste? Be, nella continua presa di posizione da parte di alcuni utenti e programmatori che portano avanti la loro visione a discapito del bene comune, del realizzare qualcosa che va bene per tutti.
E indovinate un po? C� ancora questo atteggiamento. Assistiamo ancora alle solite discussioni su quale sia il desktop migliore, su quale sia il file manager migliore e abbiamo moltiplicato le soluzioni ai problemi. Prendete Xorg dove abbiamo visto la nascita di Mir e Wayland. Stessa considerazione la possiamo fare per quanto riguarda la gestione pacchetti: da un lato abbiamo Canonical con il suo Snap, dallaltro abbiamo il resto del mondo con FlatPak. Come potete ben capire siamo sempre alle solite, anzich� portare avanti un progetto con contributi di tutti preferiamo farne due. E chi ci perde in tutto questo? Tutti, sia noi utenti, che chi scrive software e vuole fare il porting del proprio software per Linux.
I Big del mondo GNU/Linux
Negli anni trascorsi Red Hat, Canonical, e Novell si sono buttati su mercati per loro pi� redditizi come il Cloud e OpenStack. Il desktop? Non pervenuto.
Solo qualche portatile Dell con Ubuntu (lXPS 13 Developer Edition) che per� ha prezzi alti in linea con la categoria degli ultrabook e mercato di nicchia.
Canonical sta anche provando a entrare nel mercato della telefonia mobile con il suo Ubuntu Phone OS ma senza riuscire ad avere risultati, anche perch� il mercato mobile � ormai dominato da iOS e Android e non c� spazio per altri, specie se non si hanno le killer application che la gente vuole sul proprio smartphone senza sentirsi emarginato dal resto del mondo.
E tu che gi� usi GNU/Linux?
Noi continuiamo, anche se meno numerosi di prima, a portare avanti i principi del software libero e di quello open source ma non possiamo fare poi molto, forse lunica cosa che possiamo fare � quella di smettere di usare termini come "alternativa a" quando parliamo di software libero e open source ma definiamoli per quel che sono ovvero semplicemente software. Poi lasciamo allutente la decisione in merito, se sono o meno software validi e utili al loro scopo.
Sunday, June 25, 2017
Displaying sorted list size wise of Files Folder on Linux
Displaying sorted list size wise of Files Folder on Linux
The command I am discussing below helps you solve precisely this problem by giving you an ordered list (ordered in terms of size) of files and folders taking up space in your computer thus helping you find files/folder which are taking up significant amount of space :
du -sm *
Above command would display all the files and folder as well as their size as a list, however this is not a ordered list . To order the list we would need to pipe (that is send output of this command to another ) the output of the "du" command to "sort" command giving out list of files and folders sorted in ascending order according to the size.
du -sm * | sort -nr
Still there is a problem this is an entire list of files and folder in your file system , so if you have number of files and folders it will take number of screens to display . A better way would be to pipe the output of above command to "head" command to display only specified number of lines of output generated by "du -sm * | sort -nr " command .
du -sm *| sort -nr | head -15Now the above command would display the top 15 files and folder according to their size .
For Desktop on Linux Blog , http://linuxondesktop.blogspot.com
(C) 2008 , Ambuj Varshney
Wednesday, June 21, 2017
Dillo Light Weight webbrowser for Linux hits version 2 0
Dillo Light Weight webbrowser for Linux hits version 2 0
Dillo has been used as default web browser by a number of lightweight Linux distributions like Damn Small Linux , VectorLinux etc. Dillo supports CGI Forms , SSL , Cookies though it misses support for Javascript which limits its usage slightly. However , Dillo was never intended to replace normal web browser instead it was designed to be usable on simplest of hardware(like really old computers , or may be PDAs ) for displaying simple web pages quickly and accurately which it does extremely well. Dillo could be particularly useful for Kiosk terminals where we dont have access to expensive hardware needed for running modern web browsers. Also Dillo has been used extensively by Web Developers to check for Web comply-ability of there websites using bug meter feature in Dillo.
This is how Dillos website describes Bug Meter :
Dillos bug meter shows the number of detected bugs inside a web page. The bugs are caught at parsing time, and therefore the error messages also show the line where they occur and provide a hint of what was expected instead!Dillo with version 2.0 has moved to FLTK2(Fast Light Wight Toolkit ) from GTK , which has made Dillo even faster . I found on a fairly modern computer astonishingly , Dillo occupied Less then 3 MB of memory to render a fairly complex web page.
Impressed , you can easily install Dillo by issuing the following command in the Terminal(Application -> Accessories -> Terminal ) window:
wget http://misc.andi.de1.cc/dillo/dillo_2.0-1_i386.deb
and
sudo dpkg - i dillo_2.0-1_i386.debIf the above command worked without any problem , you should have Dillo installed properly . You can Launch Dillo from (Applications -> Internet -> Dillo ).
Dillo in Action :)Article Written by : Ambuj Varshney (blogambuj@gmail.com)
For Linux on Desktop Blog , http://linuxondesktop.blogspot.com
(C) 2008 , Ambuj Varshney
Wednesday, May 31, 2017
Disable rate limiting in rsyslog v5 Linux RHEL CentOS Ubuntu
Disable rate limiting in rsyslog v5 Linux RHEL CentOS Ubuntu
Hello,
This article will show you how to disable rsyslog rate-limiting, But You can also use rate-limiting according to your requirement.?
This article will show you how to disable rsyslog rate-limiting, But You can also use rate-limiting according to your requirement.?
Read more: http://www.tejasbarot.com/2015/09/17/disable-rate-limiting-in-rsyslog-v5-linux-rhel-centos-ubuntu/
Tuesday, May 9, 2017
Directory structure of Ubuntu Linux
Directory structure of Ubuntu Linux
Ubuntu directory structure is a directory tree structure very much similar to directory structure of Unix. There is a resemblance between Unix directory structure and directory structure of Ubuntu Linux. The Ubuntu Linux directory structure contains the root directory / at the top with the remaining Linux system directories and file structure like hard disk, partition and other data files falling under it. It is a tree like structure and the top of the tree i.e., the highest level in the file system is the root directory /.
Some important Ubuntu Linux system directories are
1. /bin: This directory contains important binary application. It would contain the executable file for command like ls, cal, grep etc which are used in everyday Linux environment, directly or indirectly.
2. /boot: This directory contains the files needed for booting up the operating system. It include the kernel (vmlinux), ramdisk image (initrd.lz) and bootloader configuration files.
3. /dev: This Ubuntu Linux directory does not consume any space on disk and is used to keep track of devices connected to the computer including the ones which are a part of the CPU such as the disks, mouse, display,graphics card etc.
4. /etc: This is the place where you can find the configuration files of the base OS and other installed applications and startup scripts. It contain all the configuration files, ranging from the ones which control the booting of computer to the ones which can change the behavior of installed software and services.
5. /home: It is the user profile folder in Linux similar to the c:/ user folder in Windows. Each user on the system would have a separate directory within this sub-directory.
6. /lib: The system libraries required for the proper functioning of installed software are present in this Linux directory. Library in context of computing is define as a reusable resource that can be used by more then one software.
7. /lost+found: This contains the lost and found files of your / directory.
8. /media:This directory is not a part of the Linux directory structure. It is the system directory file which help to recognize all the mounted removable media such as CD, external hard drives, USB drives, cameras etc.
9. /mnt: This Linux directory is used to create mount point for other systems which are attached to the computer on boot, e.g. Windows partitions.
10. /opt: This directory provides a location for optional applications to be installed.
11. /proc: This virtual directory does not consume any space on disk but exists only in the system memory. This directory is freely available for browsing only to the root user.
12. root: This is commonly known as the slash-root directory, it refer to / as root in Ubuntu Linux.
13. /sbin: This directory is also available to root user. It contains commands to change system wide settings.
14. /srv: This directory acts as a temporary location for data meant to be used by servers.
15. /sys: This directory contains system-specific information meant as reference for other applications.
16. /tmp: As the mane suggest, it acts as storage for temporary files.
17. /usr: This is where most of your applications and files will be stored, as anything present here is available for all users to acccess. It can be also be called as the program files folder for Linux.
18. /var: This is a directory for variable files such as logs and databases. Notice the contrast with the /tmp directory.
Tuesday, April 4, 2017
Did You Know Run Linux Kernel On Canon DSLR Camera
Did You Know Run Linux Kernel On Canon DSLR Camera
Did You Know ?? Run Linux Kernel On Canon DSLR Camera - In the 2015, wheter there who dont know about Linux? :D just kidding bro. Linux kernel is the kernel awesome, he can running in any where and every where.
Hahaha :D too amazing about linux. Not limited by computer or mini computer, Linux can life. Other linux users already experiment with run linux on device game console, for example it is a Play Station 3 or Nittendo Wii.
Now, is possible linux run on DSLR Camera? the answer is very possible. Special thanks to the developer on Magic Lentern. the team of sleuths and hackers behind this achievement, already made some progress in digging into Canons EOS line of DSLR cameras, getting access to information about the hardware as well as to some of the very low-level hardware resources of the camera. This includes being able to display things on the monitor, access to SD card, and more. The next big step would be to try running a different operating system on the camera, and for that purpose, Linux is the perfect choice.
On the last work, the team of Magic Lentern has created a masterpiece that sounds is really good and interesting. They are has managed to porting linux kernel to Canon DSLR Cameras.
Below the Proof Of Concept (POC) about Porting Linux Kernel to Canon DSLR Cameras
Quotes by thehackernews.com :
And than the team research to build a Graphical User Interface (GUI) and not possible a utilities for the next generation of cameras.At the time, the team could do the following tasks:
- Allocate all available RAM to Linux
- Print debug messages directly on the camera screen
- Set up timer interrupts for scheduling
- Mounts am 8 MiB ext2fs initial ramdisk
- Starts /bin/init from initrd.
So, if you are excited to try this research to your camera, you can download the autoexec.bin or the source code here.
Paper 4Share - Did You Know ?? Run Linux Kernel On Canon DSLR Cameras
Saturday, April 1, 2017
Dieses Plugin ist verwundbar und sollte aktualisiert werden Flash Player Linux
Dieses Plugin ist verwundbar und sollte aktualisiert werden Flash Player Linux
Warum ist das so?
Ihr bekommt Updates f�r den Adobe Flash Player, wenn dieser installiert wurde. F�r Linux gibt es aber nur Sicherheitsupdates und keine allgemeine "Playerupdate". Das bedeutet unter Linux habt Ihr die Version 11, dabei w�ren wir bereits bei Version 16. Um euch zu sch�tzen warnt euch Firefox und blockt Flashinhalte.
Sollte die Meldung erscheinen, dann einfach eine Update durchf�hren:
Monday, March 17, 2014
Notebook for Linux Desktop
Notebook for Linux Desktop
Notebook for Linux Desktop
For that here I try to explain the specification laptop / notebook that match and has hardware that is already well recognized by the current linux desktop. Here I did not mention brands, but you can recognize the hardware specifications. This I wrote an outline of just my own experience:
1. To Processor
Both Intel and AMD are now well recognized by all the technology in Linux that are popular today.
2. For chipset Video
All existing video chipsets are now able to run linux with a standard graphical display. For a minimal 3D chipset is from Intel. Ranging from Intel 945 up to X1300. This chipset is directly running 3D Compiz Fusion to run on Linux.
To run a heavier 3D please select the output from the NVidia chipset and the ATI and if it could be a dedicated video memory (no share of the RAM). Both chipsets requires its own drivers in Linux.
3. For Wifi Chipset
Here, Intel remains a champion in the introduction of direct harware in Linux. For other chipsets such as Broadcom and Atheros also requires its own drivers in linux, can also use ndiswrapper.
4. Disk.
I think the hard disk is recognized well by linux either IDE or SATA.
5. Network Card
All chipsets Network Card Laptop now also been well recognized by linux.
6. Webcam / Camera
This is still a bit difficult. Because only a few vendors are mengelurkan drivers for linux, it is also the installation manually. Chipset webcams already can run on linux with separate drivers that I know Acers new and microdia chipset.
7. Internal Modem
Most of the already recognized by the current linux. If that is not detected may indeed require a special driver.
Broadly speaking, thats all I can review the specifications of the laptop or notebook is good for running Linux. This is different from the current UMPC already include Linux OS in it, of course, all the hardware is going well.
From my survey results remain Laptops with Centrino specification from Intel (Intel chipset from the motherboard, processor, wifi, video) is the right choice if you do not want to be bothered with the business drivers in linux.
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