pawaanv’s gists

pawaanv / sysctl.conf

Created June 23, 2020 14:39 — forked from voluntas/sysctl.conf

Sysctl configuration for high performance

	### KERNEL TUNING ###

	# Increase size of file handles and inode cache
	fs.file-max = 2097152

	# Do less swapping
	vm.swappiness = 10
	vm.dirty_ratio = 60
	vm.dirty_background_ratio = 2

pawaanv / sysctl.conf

Created June 23, 2020 14:39 — forked from voluntas/sysctl.conf

Sysctl configuration for high performance

	### KERNEL TUNING ###

	# Increase size of file handles and inode cache
	fs.file-max = 2097152

	# Do less swapping
	vm.swappiness = 10
	vm.dirty_ratio = 60
	vm.dirty_background_ratio = 2

pawaanv / lab-rises.sh

Created July 12, 2018 06:39 — forked from cloudnull/lab-rises.sh

	############################# ON ERL3 #############################
	# First SSH to the ELR3 then edit the configuration
	configure # drops you into the configuration terminal

	# Set the boot file.
	set service dhcp-server shared-network-name LAN1 subnet 172.16.24.0/22 bootfile-name pxelinux.0

	# Set the boot server.
	set service dhcp-server shared-network-name LAN1 subnet 172.16.24.0/22 bootfile-server 172.16.24.90

pawaanv / leeroy.cfg

Created July 10, 2018 18:26 — forked from atuttle/leeroy.cfg

This is my preseed file for auto-installing Ubuntu 11.04 on my Jenkins server

	#### Contents of the preconfiguration file (for squeeze)
	### Localization
	# Preseeding only locale sets language, country and locale.
	# The values can also be preseeded individually for greater flexibility.
	#d-i debian-installer/language string en
	#d-i debian-installer/country string NL
	#d-i debian-installer/locale string en_GB.UTF-8
	# Optionally specify additional locales to be generated.
	#d-i localechooser/supported-locales en_US.UTF-8, nl_NL.UTF-8
	d-i debian-installer/locale string en_US

pawaanv / gist:f8d78ee3f1a62f32492731c19a4aaeb5

Created July 5, 2018 11:40 — forked from hugoduncan/gist:1001548

debian squeeze preseed late_command for automated install of virtualbox guest additions

	# Install virtualbox additions.
	# Requires the guest additions iso connected to the secondary slave.
	# This seems overly complicated, but is a combination
	# that seems to work:
	# the vbox ose packages were somehow being installed by the standard task,
	# the LSB header is required for update-rc.d, which in turn is needed,
	# due to straight linking to rc2.d not working (automatic boot sequence,
	# and dependency management),
	# cdrom source not being removed at the point when this script runs.
	# Deletes /etc/udev/rules.d/70-persistent-net.rules to allow cloning.

pawaanv / make-pxe-environment.sh

Created June 17, 2018 11:59 — forked from gdamjan/make-pxe-environment.sh

Make and start a PXE server

	#!/bin/sh

	mkdir /home/tftproot
	# install syslinux from package and symlink it or just download and extract it
	ln -s /usr/lib/syslinux /home/tftproot/syslinux


	mkdir /home/tftproot/pxelinux.cfg/

	cat > /home/tftproot/pxelinux.cfg/default <<EOF

pawaanv / README

Created June 11, 2018 11:51 — forked from kalxas/README

Customize ubuntu live image

	# first, get the iso from http://releases.ubuntu.com/

	# make working dir hierarchy in /tmp (you'll need enough ram for this)
	sudo mkdir -p /tmp/custom/{_squash,_work,iso,newiso,newlive,project}
	sudo mount -o loop ~/Downloads/ubuntu-15.10-desktop-amd64.iso /tmp/custom/iso
	sudo mount -t squashfs /tmp/custom/iso/casper/filesystem.squashfs /tmp/custom/_squash
	sudo mount -t overlay overlay -onoatime,lowerdir=/tmp/custom/_squash,upperdir=/tmp/custom/project,workdir=/tmp/custom/_work /tmp/custom/newlive

	# customize the live fs with systemd-nspawn (a better chroot)
	sudo systemd-nspawn --bind-ro=/etc/resolv.conf:/run/resolvconf/resolv.conf --setenv=RUNLEVEL=1 -D /tmp/custom/newlive

pawaanv / setup

Created April 11, 2018 02:36

cipher-server-setup

	#!/bin/bash
	echo "cipher server setup........"
	read -r -p "press y to continue , n to exit installation." choice
	if [[ "$choice" =~ ^([yY][eE][sS]\|[yY])+$ ]]
	then
	echo contining install
	echo "setting up all basic required tools"
	sudo dnf install wireshark sqlite vagrant bridge-utils qemu-kvm virt-manager virt-viewer virt-install qemu-img libvirt libvirt-python libvirt-client evolution bleachbit dovecot sendmail m4 sysstat libvirt-devel libxslt-devel libxml2-devel qemu-img libguestfs-tools virt-top spice-server spice-protocol sysstat ntop iotop atop wireshark iftop ethtool -y
	else
	echo "Aborting install.."

pawaanv / virt-install-fedora.sh

Created April 8, 2018 00:46 — forked from goldmann/virt-install-fedora.sh

	#!/bin/bash

	if ! [ $# -eq 1 ]; then
	echo "Usage: $0 <node-name>"
	exit 1
	fi

	# Make sure you have all dependencies:
	# yum -y install libguestfs-tools virt-install

pawaanv / gist:63e4f775bf6c260b856c96e396f700c2

Created April 5, 2018 01:25

netdata installation on fedora26

	bash <(curl -Ss https://my-netdata.io/kickstart.sh)
	System : Linux
	Operating System : GNU/Linux
	Machine : x86_64
	BASH major version: 4
	--- Downloading script to detect required packages... ---
	[/home/cipher]$ /usr/bin/curl https://raw.githubusercontent.com/firehol/netdata-demo-site/master/install-required-packages.sh
	% Total % Received % Xferd Average Speed Time Time Time Current
	Dload Upload Total Spent Left Speed
	100 41916 100 41916 0 0 21175 0 0:00:01 0:00:01 --:--:-- 21169

Pawan pawaanv