Skip to main content

How Increase/decrease sudo time stamp in mac and linux

We sometime might feel like the sudo effect should stay for more than default 5 minutes in terminal to run multiple commands without getting password prompt. We can increase or decrease the sudo effect duration by modifying the time stamp. 
Note : It is advised not to change the default time stamp of 5 minutes as this might create security concerns. If you want to still increase the time stamp then follow below steps to increase/decrease.

  1. Open Terminal.
  2. Run command visudo in Terminal. (This will open /etc/sudoers file , Do not use any other method to open this file as this will corrupt the file, resulting in unexpected results)
  3. Edit the file in insert mode and write following line at the end of the file
          Defaults       env_reset,timestamp_timeout=60 
 
          Where 60 refers to 60 minutes.
         
          Note : 1. If you set the timeout to 0, you will be always prompted for a password.  
                     2. If you set to a value less than 0 then user's timestamp will never expire.


         
  

Comments

Post a Comment

Popular posts from this blog

How to extract signing certificates from macOS binary files

Code signing is a macOS security technology that you use to certify that an app was created by you. Once an app is signed, the system can detect any change to the app—whether the change is introduced accidentally or by malicious code. As Apple Developer site says ( click here for more details  on code signing) : code signing allows the operating system to: Ensure that a piece of code has not been altered since it was signed.  The system can detect even the smallest change, whether it was intentional (by a malicious attacker, for example) or accidental (as when a file gets corrupted). When a code signature is intact, the system can be sure the code is as the signer intended. Identify code as coming from a specific source (a developer or signer).  The code signature includes cryptographic information that unambiguously points to a particular author. Determine whether code is trustworthy for a specific purpose.  Among other things, a developer can use a ...
Post a Comment
Read more

How to find firmware or boot ROM version in Mac OS X

Firmware and boot ROM version of your mac can be found in two ways. Way 1 : 1. From "Apple" menu , choose "About This Mac" menu item. 2. Click " More Info " to open "System Profiler" application. 3. Under Contents -> Select Hardware Tree item. On the right side panel Under hardware overview section, we can see Boot ROM Version and SMC (Firmware) Version. Way 2 : Run the below command in terminal to get boot ROM version and SMC(firmware) version : $ system_profiler SPHardwareDataType | grep -i "Version" | awk -F ':' '{print $1 $2}'
6 comments
Read more

How to enable root login in gnome on Debian 6 or 7

Root user login in gnome is disabled on Debian system by default for security reasons. If you want to enable it for specific reasons then follow the below steps : 1. Login into Debian system 2. launch the Root Terminal from Applications -> Accessories. 3. Authenticate with password to launch the Root Terminal. 4. Open "/etc/pam.d/gdm3" with vi.          #vi /etc/pam.d/gdm3 5. Look for "auth     required     pam_succeed_if.so  user  != root   quiet_success"  , comment it out as below.     #auth     required     pam_succeed_if.so  user  != root   quiet_success 6. Save the modification with Esc+w+q+Enter keystroke. 7. Restart or reboot Debian system. 8. Login with root user in gnome. You should be now able to login successfully.   
11 comments
Read more