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sysctl

What is the difference between “all”, “default” and “eth*” in /proc/sys/net/ipv[46]/conf/?

August 11, 2022 by Magenaut

In sysctl, the /proc/sys/net/ipv[46]/conf/ keys have the following subkeys: all, default, and a key for each network interface. For example, on a machine with a single network interface eth0, it will look like this:

Categories Q&A, Unix & Linux Tags ipv6, linux, proc, sysctl Leave a comment

disable transparent hugepages

August 10, 2022 by Magenaut

We are installing SAP HANA in a RAID machine. As part of the installation step, it is mentioned that,

Categories Q&A, Unix & Linux Tags kernel, linux, sysctl Leave a comment

How to set and understand fs.notify.max_user_watches

August 7, 2022 by Magenaut

I don’t understand the best way to set fs.inotify.max_user_watches with sysctl. In fact, I don’t understand much of what is happening here other than the fact that I need to set the number of files that can be watched by a particular process.

Categories Q&A, Unix & Linux Tags linux, sysctl Leave a comment

dmesg: read kernel buffer failed: Permission denied

August 7, 2022 by Magenaut

Since recently Debian has changed the default behavior for dmesg and I cannot use it simply from my local user.

Categories Q&A, Unix & Linux Tags debian, dmesg, linux, sysctl Leave a comment
  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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