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Linux

How to Find All Sudo Users in Linux

February 14, 2022February 14, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
find all sudo users in linux

System administrators need to keep track of all sudo users in Linux to prevent unauthorized access to system. Here is how to find all sudo users in Linux.

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How to Insert Text to Beginning of File in Linux

February 14, 2022February 14, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
insert text at beginning of file in linux

Sometimes you may need to insert one or multiple lines to the beginning of file. Here is how to insert text to the beginning of the file.

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How to Revoke SSH Access & Keys in Linux

February 11, 2022February 11, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
revoke ssh access and keys in linux

Sometimes you may need to revoke SSH access & keys to users to avoid unauthorized access. Here are the steps to do it.

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How to Keep SSH Session Alive After Disconnect in Linux

February 11, 2022February 11, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
keep ssh alive after disconnect

Sometimes you may need to keep your SSH connection alive even after disconnect to run tasks & processes. Here is how to do it.

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How to List SFTP Users Who Have Access in Linux

February 10, 2022February 10, 2022 Sreeram Sreenivasan Leave a comment Apache, Linux, Ubuntu
get list of sftp users in linux

Sometimes you may need to list all SFTP users who have access to your system. Here is how to do it in Linux.

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How to Password Protect PDF in Linux

February 8, 2022February 8, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
password protect pdf in linux

PDF files allow you to set password for security. Here is how to password protect PDF in Linux.

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How to Remove PDF Password in Linux

February 8, 2022February 8, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
how to remove passwords from PDF in Linux

Sometimes you may need to remove password from PDF file. Here is how to remove PDF password in Linux using PDF toolkit and QPDF.

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How to Rotate & Resize Images in Linux Terminal

February 7, 2022February 7, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
Rotate & Resize Images in Linux Terminal

Sometimes you may need to rotate & resize image in Linux terminal. Here is how to edit images in Linux.

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How to Exclude Files & Folders From Copying in Linux

February 7, 2022February 7, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
exclude files & folders from copying in linux

Sometimes you may need to copy all files & folders excluding one or more files in Linux. Here is how to exclude files & folders from copying in Linux.

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How to Copy Files to CD in Linux

February 7, 2022February 7, 2022 Sreeram Sreenivasan Leave a comment CentOS/RHEL, Linux, Ubuntu
copy files to cd in linux

Sometimes you may need to copy files to CD in Linux. Here are the steps to copy files & folders to CD in Linux.

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