Goodies

Debugging FortiGuard Web Filter Issues After Firewall Reboot

When working with FortiGate firewalls, you might encounter a situation where FortiGuard Web Filtering services become unreachable after a reboot. This can prevent users from accessing web-filtered resources, leading to…

pje February 17, 2025

Auto Expand Disk size via cron

First prep the system for the auto expand script # Create directory for the script to live in sudo mkdir -p /etc/expand-disk Add the Script to crontab to run every…

pje February 11, 2025

Restore a configuration backup on a FortiGate HA cluster

When restoring a configuration backup on a High Availability (HA) cluster, the process should be performed only on the primary unit. The configuration will then automatically synchronize with the secondary…

pje February 8, 2025

Installing and Logging In to Windows 11 Without an Online Microsoft Account

By default, Windows 11 requires you to log in with a Microsoft account during the initial setup process, also known as the Out-of-Box Experience (OOBE). This requirement is part of…

pje January 24, 2025

Powerhslel: Renew Certificate with Specific Template

$templateName = 'RADIUS Template' $certSN = Get-ChildItem 'Cert:\LocalMachine\My' | Where-Object{ $_.Extensions | Where-Object{ ($_.Oid.FriendlyName -eq 'Certificate Template Information') -and ($_.Format(0) -match $templateName) }} | select-object SerialNumber certreq -enroll -machine -q…

pje January 22, 2025

Create DHCP Scope via CLI in Microsoft Server

Create scope through powershell Add-DhcpServerv4Scope -Name "VLAN111" -StartRange 172.16.11.10 -EndRange 172.16.11.100 -SubnetMask 255.255.255.0 Add-DhcpServerv4Scope -Name "VLAN222" -StartRange 172.16.22.10 -EndRange 172.16.22.100 -SubnetMask 255.255.255.0 Add-DhcpServerv4Scope -Name "VLAN333" -StartRange 172.16.33.10 -EndRange 172.16.33.100 -SubnetMask…

pje October 18, 2024

Install docker on Ubuntu ( Without SNAP )

sudo apt-get update && sudo apt-get install ca-certificates curl gnupg lsb-release -y && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg echo \ "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \…

pje August 30, 2024

Extend standard disk ( Non lvm)

After the disk has been extended, then rescan for changes. This guide is based on the SDA disk and the 3 partition. Change the device and partition to match your…

pje July 7, 2024

Required Domain Controller Ports through Firewall

Domain controllers play a crucial role in your network. To protect them, ensure that the firewall is enabled and that only the necessary ports for your Domain Controller are open.…

pje June 26, 2024

How to upgrade Windows 2022 from EVAL to Full Version

If you attempt to convert or upgrade Windows Server Evaluation to a fully licensed edition using the standard command line or the CHANGE KEY GUI, you may encounter errors such…

pje June 26, 2024

Extend LVM with extra disk

Find the LVM details of the volume group that you want to add a disk to: sudo lvdisplay Example output, The two with bold are the needed information in this…

pje June 16, 2024

Trust Certificates in Ubuntu/Debian system

Debian as an example. Install the ca-certificates package: apt-get install ca-certificates You then copy the public half of your untrusted CA certificate (the one you use to sign your CSR)…

pje June 8, 2024

Submit CSR to Microsoft CA using CertReq

1: Generate CSR. It will be required in step 3. 2: Right-click Start | select Windows PowerShell (Admin) to launch PowerShell as administrator.3: Execute the following certreq command: certreq -submit…

pje June 7, 2024

IPMI Cli Commands

1. Man and help info for IPMItool ipmitool help man ipmitool 2. To check firmware version ipmitool mc info 3. To reset the management controller ipmitool mc reset [ warm…

pje June 5, 2024

Eve-NG Goodies

EVE-NG Node Credentials List

Instance NameUsernamePasswordConsole typeCisco ASA 802 no passwd, hit entertelnet Cisco ASA 8.4.2, 9.1.5 no passwd, hit enter telnet Cisco ASAv no passwd, hit enter telnet Cisco IPS cisco ciscoips123 telnet Cisco…

pje April 24, 2024

Extend default LVM Volume

After the disk has been extended, then rescan for changes. This guide is based on the SDA disk and the 3 partition. Change the device and partition to match your…

pje April 9, 2024

Goodies Goodies | Rsyslog

Rsyslog Troubleshooting Guide

Initiating Debug Mode To kick off debug logging from the get-go, prepend your rsyslog.conf file with these lines. This ensures debug logging activates immediately upon the rsyslog service launching: $DebugFile…

pje April 1, 2024

Limit Windows RPC Ports

When using domain services through a firewall the RPC ports must be limited from the range 1025-65535 to specific ports. Windows registry settings, must be implemented at least on domain…

pje January 12, 2024

Repairing FortiAnalyzer when disk are in Read-Only mode

Maintenance Mode indicates that the system is unable to detect the hard drives, the hard drives cannot be correctly mounted, or the disk is experiencing corruption. If the hard drives…

pje September 4, 2023

Goodies Goodies | HAProxy

HAProxy – Set Backend Server in maintenance mode

First install socat sudo apt update sudo apt install socat -y Execute the following command where <backend> and <Server> are replaced echo "disable server <backend>/<Server>" | sudo socat unix-connect:/var/run/haproxy/admin.sock stdio…

pje September 2, 2023

Windows – Add NTP Server

Execute the following command, change the timesource to a FQDN or an IP Address w32tm /config /manualpeerlist:<timesource> /syncfromflags:manual /reliable:yes /update Stop time Service net stop w32time unregister and register time…

pje August 16, 2023

Clearing Windows Update Cache Upon Update Failure

Open Command Prompt by Start -> Run and type “cmd“ On the Command Prompt, type “net stop wuauserv“. This is done so that you will terminate the windows automatic update…

pje August 16, 2023

Goodies Goodies | Unifi

Unifi – Set Option 43 for controller IP

Unifi uses option 43 so the switches and AccessPoints can find its controller if it is not present on the same L2 network. Option 43 should be filled out with…

pje August 16, 2023

Goodies Goodies | Linux Goodies | Rsyslog

Rsyslog – Forward logs to another server

Create a new config file under the rsyslog config directory sudo vim /etc/rsyslog.d/30-forward-logs.conf Use single @ for udp forwardingUse double @ for tcp forwarding Example of udp forwarding *.* @172.16.204.1:514…

pje August 16, 2023

Goodies Goodies | Linux Goodies | Rsyslog

Rsyslog – Save login to a seperate file

Create a new rsyslog config file sudo vim /etc/rsyslog.d/10-auth.log.conf Add the following text :msg, contains, ":session" /var/log/rsyslog-auth.log :msg, contains, ":auth" /var/log/rsyslog-auth.log :msg, contains, "COMMAND=" /var/log/rsyslog-auth.log :msg, contains, "session opened for…

pje August 16, 2023

Goodies Goodies | HAProxy

HAProxy Use Multiple Config Files from a folder

Create a folder to contain the .cfg files sudo mkdir -p /etc/haproxy/haproxy.d Change the systemd file used for the HAProxy Service sudo vim /etc/systemd/system/multi-user.target.wants/haproxy.service Find the line that starts with…

pje August 16, 2023

Goodies | Microsoft Goodies | Windwos

Two-Tier CA structure ( Online Subordinate CA )

Prerequisites IIS must be installed and working from the clients that will need the RootCA or certs signed by the RootCA server. See more for a simple IIS install guide…

pje August 15, 2023

Goodies | Microsoft Goodies | Windwos

Two-Tier CA structure ( Offline RootCA )

Prerequisites IIS must be installed and working from the clients that will need the RootCA or certs signed by the RootCA server. See more for a simple IIS install guide…

pje August 15, 2023

Install IIS for Certificate Authority CRL and Root Certificate distribution

Open powershell and install the iis windwos feature mkdir c:\inetpub\certs New-WebVirtualDirectory -Site "Default Web Site" -Name "certs" -PhysicalPath "c:\inetpub\certs" Open the IIS manager Expand the Sites and expand the Default…

pje August 15, 2023

Disable SIP-ALG on VDOM and policy

config system settings set sip-expecation disable end config voip profile next edit Disable-SIP-ALG show config sip show set status disable set strict-register disable end next end

pje August 15, 2023

Fortigate Best practices – CLI Examples

Management *Missing from this guide. Management users from central user database ( LDAP, SAML etc ) Configure the web management portsHostname and the Alias of the firewalls.I enable LLDP for…

pje July 19, 2023

Fortigate Best practices – Introduction

Management Network Should be independent from production or business traffic, it does not have to compete for resources and management access can be maintained when reconfiguring the production network. Policies…

pje July 11, 2023

Goodies Goodies | Lenovo

Add VLAN to a Lenovo switch in a MCLAG cluster

There are consistency check in the Lenovo swtiches when they are participating in a MCLAG cluster. Therefor the switche will shutdown the ports if there are an inconsistency between the…

pje July 2, 2023

802.1x Goodies Goodies | Microsoft

Microsoft CA Server installation

Install the Windows feature. Open powershell as admin and execute the following command I strongly reccomend to not use the server name as the CA Common Name, since this will…

pje July 2, 2023

Bash Generate random number

Number between 1 and 10 $((1 + RANDOM % 10))

pje July 2, 2023

Bash Generate random string

32 chars string $(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

pje July 2, 2023

Goodies Goodies | Arista Knowledge

SCP into an arista switch

The username you use must be defined explicitly with “privilege 15” as part of the definition, so it will look like this perhaps: aaa authorization exec default local That puts…

pje June 26, 2023

Fortigate – Airprint multicast forwarding between two different subnets

1) Enable Multicast forwarding: # config system settings set multicast-forward enable end 2) Interface configuration:Two different interface having two different IP addresses assigned. # config system interface edit "internal1" set…

pje June 26, 2023

Enable remote connections in Forticonverter

The new FortiConverter is designed as a web application. The application (FortiConverter.py) should be run with Administrator privileges because it reads and writes data from/to high privilege directories. For security…

pje June 23, 2023

Forgot admin password on a Fortigate

Factory reset when forgot admin password Reboot the fortigate When the login prompt appears you have max 14 seconds to login with the maintainer account Username: maintainer Password: bcpb<FORTIGATE…

pje June 23, 2023

Diagnose Traffic Flow on a Fortigate

diagnose debug disable diagnose debug flow trace stop diagnose debug flow filter clear diagnose debug reset diagnose debug flow filter addr 10.10.10.1 diagnose debug flow filter port 3200 diagnose debug…

pje June 23, 2023