“Don’t cry because it’s over, smile because it happened.”
― Dr. Seuss
I needed to use package hold.
I ran command :
uname -r Read More
Category: Linux
Linux elements OS after install
After standart instaliation. I install, for internet browsing:
sudo apt install chromium-browser firefox
Torrent client:
sudo apt install qbittorrent
System tools:
sudo apt install htop mc
Linux Grub simple dark theme
Simple dark GRUB theme. I like Poly dark and install it:
Supported languages: Chinese (simplified), English, French, German, Norwegian, Portuguese, Russian, Spanish, Ukrainian
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Method to install Grub Customizer [Ubuntu/Elementary]
I fresh install of win10 and elementary OS, want customizer. My PC is booting into elementary by default instead of into win10. I use both, but I want o boot into win10 by default. This is method to install Grub Customizer in Loki (maybe in other Ubuntu/Debian Linux OS).
sudo add-apt-repository ppa:danielrichter2007/grub-customizer sudo apt-get update sudo apt-get install grub-customizer grub-customizer
How to Keep Alive SSH Sessions
Many NAT firewalls time out idle sessions after a certain period of time to keep their trunks clean. Sometimes the interval between session drops is 24 hours, but on many commodity firewalls, connections are killed after as little as 300 seconds. To avoid having your SSH sessions become unresponsive after e.g. 5 minutes, do the following:
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Stop monitor from going to sleep in ubuntu 16.04
Using Command Line.
I am using /etc/X11/xorg.conf file in Ubutnu 14.04, which has below lines written in it.
Section "ServerFlags"
Option "BlankTime" "60"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection
And it is working fine in Ubuntu 14.04 but not working in Ubuntu 16.04.
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Install Conky
Displaying System Details On Your Desktop With Conky System Monitor On Ubuntu:
apt-get install conky
conky -C > > ~/.conkyrc
conky
Setup VNC Server (x11vnc) on Linux Mint 18
This tutorial was adapted from self.
1. Remove the default Vino server:
sudo apt-get -y remove vino
2. Install x11vnc:
sudo apt-get -y install x11vnc Read More
Using curator to delete older elasticsearch indices
We use ELK stack heavily in our production systems for log aggregation and monitoring.
Our daily log size generated is aroudn 100GB. Since, we do not intend to keep the log files in ELK for more than a month, it becomes important that we delete those indices to free up disk space.
Fortunately, Logstash creates a new index every day by default. Read More
SSL connect error – ciphers rsa_rc4_128 only working
Problem Statement
Recently when a Linux monitoring script using CURL to monitor a https URL broke when migrated to a VM from Oracle Linux v6.7 to v6.9. This post i will try to explain the root cause of the issue and solution to fix the issue.
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