If you get tired of typing your password for sudo, but you don't want (or don't have permissions) to put NOPASSWD in your sudoers file, you can use the following procedure to update the sudo password timestamp and avoid typing your password.
Step 1) Create $HOME/bin/sudo-hack.sh:
#!/bin/bash while [ true ]; do sudo -u root /bin/true > /dev/null 2> /dev/null sleep 60 done
Step 2) Do an initial run of sudo to set its password timestamp:
$ sudo -u root /bin/true Password: *******
Step 3) Start $HOME/bin/sudo-hack.sh in the background:
$ HOME/bin/sudo-hack.sh &
Now you can use sudo without getting a password prompt, regardless of how long it's been since the last time you ran sudo.
Note: there are most certainly security implications related to using this procedure; of course, that's also true of using NOPASSWD in the sudoers file.
The following methods can be used for resetting the root password if the root password is unknown.
If you use GRUB for booting, select the system to be booted, and add 1 to the end of the kernel boot command. If you're not presented with an edit “box” to add boot parameters, try using GRUB's edit command (the letter e). The 1 tells the kernel to boot to single-user mode.
The system now should boot to a root prompt. At this point, simply use the passwd command to change the root password.
Another option is to boot a rescue CD or an installation CD that lets you get to the command line. Once you're at a command prompt, mount the system's root directory if it's not already mounted:
$ mkdir /mnt/system $ mount /dev/sda1 /mnt/system
Now, do a chroot and reset the password:
$ chroot /mnt/system $ passwd
|Nativ Disc||Sep 23, 2016|
|Android Browser Security--What You Haven't Been Told||Sep 22, 2016|
|The Many Paths to a Solution||Sep 21, 2016|
|Synopsys' Coverity||Sep 20, 2016|
|Naztech's Roadstar 5 Car Charger||Sep 16, 2016|
|RPi-Powered pi-topCEED Makes the Case as a Low-Cost Modular Learning Desktop||Sep 15, 2016|
- Android Browser Security--What You Haven't Been Told
- Nativ Disc
- The Many Paths to a Solution
- Recovery of RAID and LVM2 Volumes
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Naztech's Roadstar 5 Car Charger
- Synopsys' Coverity
- Securing the Programmer
- RPi-Powered pi-topCEED Makes the Case as a Low-Cost Modular Learning Desktop
- Identity: Our Last Stand
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