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Herb Tucker

Linux Knowledge Base and Tutorial - 0 views

linux-tutorial.info/modules.php

linux permissions basics tutorials

shared by Herb Tucker on 02 Feb 11 - No Cached
  • The UMASK value masks out the bits. The permissions that each position in the UMASK masks out are the same as the file permissions themselves. So, the left-most position masks out the owner permission, the middle position the group, and the right most masks out all others. If we have UMASK=007, the permissions for owner and group are not touched. However, for others, we have the value 7, which is obtained by setting all bits. Because this is a mask, all bits are unset. (The way I remember this is that the bits are inverted. Where it is set in the UMASK, it will be unset in the permissions, and vice versa.)
  • The problem many people have is that the umask command does not force permissions, but rather limits them
  • Therefore, setting the UMASK=007 does not force creation of executable programs, unless the program creating the file does itself).
  • ...6 more annotations...
  • - - regular file c - character device b - block device d - directory p - named pipe l - symbolic link
  • Lets look at a more complicated example. Assume we have UMASK=047. If our program creates a file with permissions 777, then our UMASK does nothing to the first digit, but masks out the 4 from the second digit, giving us 3. Then, because the last digit of the UMASK is 7, this masks out everything, so the permissions here are 0. As a result, the permissions for the file are 730. However, if the program creates the file with permissions 666, the resulting permissions are 620. The easy way to figure out the effects of the UMASK are to subtract the UMASK from the default permissions that the program sets. (Note that all negative values become 0.)
  • You can change it anytime using the umask command. The syntax is simply umask <new_umask>
  • Here the <new_umask> can either be the numeric value (e.g., 007) or symbolic. For example, to set the umask to 047 using the symbolic notation, we have umask u=,g=r,o=rwx
  • Where "new_owner" is the name of the user account we want to sent the owner of the file to, and "filename" is the file we want to change. In addition, you can use chown to change not only the owner, but the group of the file as well. This has the general syntax: chown new_owner.new:group filename
  • Another useful trick is the ability to set the owner and group to the same ones as another file. This is done with the --reference= option, which sets to the name of the file you are referencing. If you want to change just the group, you can use the chgrp command, which has the same basic syntax as chown. Not that both chgrp and chmod can also take the --reference= option. Further, all three of these commands take the -R option, which recursively changes the permissions, owner or group.
Fexle Services

Salesforce Brings Winter'24 Release - Key Dates, Release Information and More - 1 views

The Salesforce Winter '24 release is coming soon, and it's packed with new features and enhancements to help you sell smarter, serve better, and market stronger. Be sure to check out the full relea...

Web Development webdesign Salesforce Fexle SalesforceConsultingServices SalesforceWinter24release

started by Fexle Services on 21 Sep 23 no follow-up yet
Luciano Ferrer

24 ways: Rock Solid HTML Emails - 3 views

24ways.org/...rock-solid-html-emails

newsletter html email support reference css

shared by Luciano Ferrer on 09 Jun 13 - No Cached
  • Luciano Ferrer on 09 Jun 13
     
    "At some stage in your career, it's likely you'll be asked by a client to design a HTML email. Before you rush to explain that all the cool kids are using social media, keep in mind that when done correctly, email is still one of the best ways to promote you and your clients online. In fact, a recent survey showed that every dollar spent on email marketing this year generated more than $40 in return. That's more than any other marketing channel, including the cool ones. There are a whole host of ingredients that contribute to a good email marketing campaign. Permission, relevance, timeliness and engaging content are all important. Even so, the biggest challenge for designers still remains building an email that renders well across all the popular email clients."
Jenna Evans

Immediate Payday Loans - Immediate Short Term Fiscal Support For Satisfying Urgent Desi... - 0 views

medium.com/...ng-urgent-desires-f0ca4030ad41

immediate payday loans instant loans quick cash loans same day cash loans immediate cash loans

shared by Jenna Evans on 29 Jan 16 - No Cached
  • Jenna Evans on 29 Jan 16
     
    Immediate Payday Loans is a good short-term fiscal set up that permission you to smite your cash worries in a grossly we…
javatpoints

What is Linux - javatpoint - 0 views

www.javatpoint.com/what-is-linux

what is linux introduction to

shared by javatpoints on 27 Jun 16 - No Cached
  • javatpoints on 27 Jun 16
     
    What is Linux for beginners and professionals with examples on files, directories, permission, backup, ls, man, pwd, cd, chmod, man, shell, pipes, filters, regex, vi etc..
Luciano Ferrer

PhotoShow - 1 views

www.photoshow-gallery.com

webdesign photography gallery script

shared by Luciano Ferrer on 01 Mar 12 - No Cached
  • Luciano Ferrer on 01 Mar 12
     
    "PhotoShow is a free and open source PHP application for creating and managing a web gallery. The application works without a database and uses the folder structure for creating the hierarchy of the galleries (supports unlimited sub-galleries). Images can be added either from the admin panel via a drag 'n' drop uploader or directly from the filesystem. Organizing the folders/images, editing and deleting them are also accomplished with the same methods. There is support for multiple users and groups where each can have different permissions. PhotoShow can auto-generate thumbnails of images, display the EXIF data and allows others to comment them."
Herb Tucker

Chmod and setting permissions Linux, Unix, and *nix like Operating Systems forum at Web... - 0 views

www.webmasterworld.com/...113.htm

linux chmod unix permissions sticky_bit howto tutorials

shared by Herb Tucker on 02 Feb 11 - Cached
  • Herb Tucker on 02 Feb 11
     
    good tuturial
shiv0040

Twitter said phone numbers provided for security used for ads - 1 views

www.newsbytesapp.com/...mbers-emails-for-targeting-ads

twitter bug security flaw issue used numbers emails for targeted advertising two-factor targeting ads phone discloses that 2FA disclosed given to target using adverts user lapse social networking showing

shared by shiv0040 on 09 Oct 19 - No Cached
  • shiv0040 on 09 Oct 19
     
    Twitter has disclosed a major security lapse, a bug that used phone numbers and email addresses provided by users for the purpose of targeted advertising - without permission. The information was given for the purpose of account security, but the flaw employed it for serving ads.
Rem PC

The Best Remote PC Support I Ever Had - 1 views

The Remote PC Support Now excellent remote PC support services are the best. They have skilled computer tech professionals who can fix your PC while you wait or just go back to work or just simply...

remote PC support

started by Rem PC on 12 Sep 11 no follow-up yet
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