gilangvperdana

Join Domain Ubuntu

sudo apt install realmd sssd adcli oddjob oddjob-mkhomedir packagekit
sudo apt install sssd sssd-tools sssd-dbus realmd adcli samba-common samba-common-bin oddjob oddjob-mkhomedir packagekit
realm discover rnd.abc
sudo realm join rnd.abc -U gvp

Goals entry

gilangvperdana

Change Proxmox VE Management Port from 8006 to 443

grep -rwl '8006' /usr/share/perl5/PVE/ | xargs sed -i 's|8006|443|g'
grep -rwl '8006' /usr/share/pve-docs/ | xargs sed -i 's|:8006||g'
grep -rwl '8006' /usr/share/pve-docs/ | xargs sed -i 's|8006|443|g'
grep -rwl '8006' /usr/share/doc/pve-manager/ | xargs sed -i 's|:8006||g'
sed -i 's|:8006||g' /usr/bin/pvebanner
sed -i 's|:8006||g' /etc/issue
echo 'net.ipv4.ip_unprivileged_port_start=0' > /etc/sysctl.d/50-unprivileged-ports.conf

gilangvperdana

General

If you want to create a network on openstack with static IP (without DHCP & Subnet) cause you have an external DHCP Server, you can use this.

Assume

• We want to create an external network named VLANAXS205 with physnet1 as Interface name & 205 as VLAN ID

Technique

openstack network create \
 --provider-network-type vlan \

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#!/bin/bash

echo "Profil VPN yang sedang berjalan:"
echo "-------------------------------------------------------------"
echo "TUN Interface | Profile | Subnet         | Routing Table"
echo "-------------------------------------------------------------"

for conf in /etc/openvpn/*.conf; do
    vpn_name=$(basename "$conf" .conf)

gilangvperdana

Migrate from Openstack to VMware

Pre-requsites

• Ubuntu 22.04LTS
• Glance Client CLI
• Nova Client CLI
• Openstack Client CLI

Install Tools

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General

If you want to check LLDP Information from Linux Host side you can install lldpcli (makesure LLDP from your switch has been enabled)

Installation

apt update -y
apt install -y lldpcli
systemctl enable lldpd
systemctl start lldpd

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General

If you doesn't know where to find WWN your FC HBA you can collect from Linux OS

Command

## Change host11 to antoher host, makesure the result is Online
cat /sys/class/fc_host/host11/port_state

## Check the WWN
cat /sys/class/fc_host/host11/port_name

gilangvperdana

General

If you want to pull VScode packages on Ubuntu Server, you can follow this step

Pull Offline Packages

commit_id=f06011ac164ae4dc8e753a3fe7f9549844d15e35

# Download url is: https://update.code.visualstudio.com/commit:${commit_id}/server-linux-x64/stable
curl -sSL "https://update.code.visualstudio.com/commit:${commit_id}/server-linux-x64/stable" -o vscode-server-linux-x64.tar.gz

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General

You want to create an Ubuntu VM on top of openstack as a Instance Gateway

Goals

My instance in openstack must be connected to the internet (0.0.0.0/0) via VM Gateway because only from this gateway is internet connection allowed, but apart from that my instance still needs to be able to connect to the client aka be able to SSH.

Topology

• Segment 192.168.203.0/24
• Gateway 192.168.203.1
• VM Gateway 192.168.203.2

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General

I just curios about Proxy, so i will install Squid for Proxy Server & Connect it to client

Squid Installation

apt update -y
apt install -y squid

Squid Configuration