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Hugo | DevOps | Cybersecurity

Tech Lead & DevSecOps. 🛡️ Cybersecurity | 💻 IT Tutorials | 🏴‍☠️ Ethical Hacking | ⚙️ Tech Reviews. Learn, secure, and explore cutting-edge IT solutions! 👇 https://links.valtersit.com

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VLAN Design Patterns: Segmenting IoT, Servers, and Management Traffic
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VLAN Design Patterns: Segmenting IoT, Servers, and Management Traffic

#networking #vlan #security #iot
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3 min read
Consul Connect: Service Discovery and mTLS Without Kubernetes
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Consul Connect: Service Discovery and mTLS Without Kubernetes

#consul #servicemesh #mtls #devsecops
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3 min read
Wazuh SIEM: Deploy Open Source Threat Detection
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Wazuh SIEM: Deploy Open Source Threat Detection

#wazuh #siem #threatdetection #devsecops
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3 min read
What Is Tailscale? The VPN That Doesn't Suck
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What Is Tailscale? The VPN That Doesn't Suck

#networking #vpn #tailscale #wireguard
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3 min read
WireGuard Performance Tuning: Maximum VPN Throughput
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WireGuard Performance Tuning: Maximum VPN Throughput

#wireguard #vpn #networking #performance
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3 min read
ZFS on Proxmox: ARC Tuning, Snapshots, Scrub Scheduling
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ZFS on Proxmox: ARC Tuning, Snapshots, Scrub Scheduling

#zfs #proxmox #arctuning #storage
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3 min read
Why One Source Is Never Enough: How We Decide a Vulnerability Is Fixed
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Why One Source Is Never Enough: How We Decide a Vulnerability Is Fixed

#vulnerabilitymanagement #patchverification #dataintegrity #securityresearch
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3 min read
Wazuh SIEM: Open Source Threat Detection Deployment
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Wazuh SIEM: Open Source Threat Detection Deployment

#wazuh #siem #security #infrastructure
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3 min read
Ceph Standalone: RADOS, RBD, CephFS Without Proxmox
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Ceph Standalone: RADOS, RBD, CephFS Without Proxmox

#ceph #storage #rados #cephadm
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3 min read
Linkerd vs Istio: Choosing the Right Service Mesh
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Linkerd vs Istio: Choosing the Right Service Mesh

#servicemesh #kubernetes #linkerd #istio
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3 min read
Longhorn vs Rook-Ceph: Kubernetes Storage Compared
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Longhorn vs Rook-Ceph: Kubernetes Storage Compared

#kubernetes #storage #longhorn #rookceph
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3 min read
ZimaBlade PCIe Expansion: Custom NAS and Router Combo
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ZimaBlade PCIe Expansion: Custom NAS and Router Combo

#zimablade #homelab #zfs #opnsense
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3 min read
iSCSI Storage for Hypervisors: TrueNAS, LIO, Multipath
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iSCSI Storage for Hypervisors: TrueNAS, LIO, Multipath

#iscsi #truenas #lio #multipath
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3 min read
Dark Web Reality Check: What I Found After 3 Weeks
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Dark Web Reality Check: What I Found After 3 Weeks

#tor #osint #threatintel #opsec
Comments 2
3 min read
OSSEC vs Wazuh: FIM and Active Response Compared
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OSSEC vs Wazuh: FIM and Active Response Compared

#ossec #wazuh #fileintegritymonitoring #activeresponse
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3 min read
ZimaBoard as a Home Server: N3450 Pushed to Its Limits
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ZimaBoard as a Home Server: N3450 Pushed to Its Limits

#homelab #zimaboard #proxmox #selfhosted
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3 min read
ValtersIT CVE + Threat-IP API: Integration Guide for Firewalls, SIEM and CI/CD
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ValtersIT CVE + Threat-IP API: Integration Guide for Firewalls, SIEM and CI/CD

#cybersecurity #api #python #devops
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8 min read
Why Security Teams Are Replacing Manual CVE Tracking With the ValtersIT API
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Why Security Teams Are Replacing Manual CVE Tracking With the ValtersIT API

#python #api #cybersecurity #linux
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4 min read
TLS Certificate Automation: Certbot and ACME at Scale
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TLS Certificate Automation: Certbot and ACME at Scale

#tls #certbot #letsencrypt #devsecops
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3 min read
Docker on ZimaBoard: Memory Constraints & Workarounds
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Docker on ZimaBoard: Memory Constraints & Workarounds

#zimaboard #docker #memory #selfhosting
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3 min read
Proxmox Resource Pools: Multi-Tenant Isolation Guide
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Proxmox Resource Pools: Multi-Tenant Isolation Guide

#proxmox #multitenant #accesscontrol #infrastructuresecurity
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3 min read
Network Segmentation: VLANs and Firewall Rules That Actually Work
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Network Segmentation: VLANs and Firewall Rules That Actually Work

#networksegmentation #vlansecurity #firewallrules #zerotrust
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3 min read
AppArmor and seccomp Profiles: Restricting Container System Calls
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AppArmor and seccomp Profiles: Restricting Container System Calls

#apparmor #seccomp #containersecurity #kuberneteshardening
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3 min read
Network Segmentation: VLANs and Firewall Rules for Service Isolation
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Network Segmentation: VLANs and Firewall Rules for Service Isolation

#networksegmentation #vlansecurity #firewallrules #infrastructuresecurity
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3 min read
Firewall 101: The 'Drop Everything by Default' Manifesto
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Firewall 101: The 'Drop Everything by Default' Manifesto

#networking #firewall #security #sysadmin
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3 min read
If You Can't See It, You Can't Fix It: Network Monitoring with SNMP & Grafana
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If You Can't See It, You Can't Fix It: Network Monitoring with SNMP & Grafana

#networking #monitoring #grafana #snmp
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3 min read
MikroTik FastTrack: The Performance Miracle That Breaks Your Firewall
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MikroTik FastTrack: The Performance Miracle That Breaks Your Firewall

#networking #mikrotik #firewall #performance
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3 min read
Port Forwarding is a Relic: Why You Should Nuke Your WAN-Facing Rules
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Port Forwarding is a Relic: Why You Should Nuke Your WAN-Facing Rules

#networking #security #vpn #firewall
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3 min read
Proxy vs VPN: Stop Confusing Privacy with Security
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Proxy vs VPN: Stop Confusing Privacy with Security

#networking #proxy #vpn #security
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3 min read
SSH Tunneling: The Swiss Army Knife of Networking You're Not Using
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SSH Tunneling: The Swiss Army Knife of Networking You're Not Using

#networking #ssh #linux #sysadmin
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3 min read
Proxmox SDN: Multi-Node Cluster Networking
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Proxmox SDN: Multi-Node Cluster Networking

#proxmox #sdn #vxlan #clusternetworking
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3 min read
pfSense vs OPNsense: A Pragmatic Comparison for Self-Hosters
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pfSense vs OPNsense: A Pragmatic Comparison for Self-Hosters

#pfsense #opnsense #firewall #freebsd
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3 min read
Site-to-Site IPsec: Connecting Offices Without Losing Your Mind
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Site-to-Site IPsec: Connecting Offices Without Losing Your Mind

#networking #vpn #ipsec #mikrotik
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3 min read
Network Segmentation: VLANs and Firewall Rules for Production
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Network Segmentation: VLANs and Firewall Rules for Production

#networksegmentation #vlan #firewallrules #infrastructuresecurity
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3 min read
Deploying Encrypted DNS Internally: DoH and DoT Guide
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Deploying Encrypted DNS Internally: DoH and DoT Guide

#dnssecurity #encrypteddns #devsecops #networkhardening
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3 min read
Proxmox SDN: Software-Defined Networking for Multi-Node Clusters
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Proxmox SDN: Software-Defined Networking for Multi-Node Clusters

#proxmox #sdn #vxlan #virtualization
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3 min read
How to Protect Your Homelab and API with a Free Self-Hosted WAF (SafeLine Docker Install)
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How to Protect Your Homelab and API with a Free Self-Hosted WAF (SafeLine Docker Install)

#security #docker #waf #nginx
Comments 1
3 min read
Proxmox Network Configuration: Bridges, Bonds, and VLANs
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Proxmox Network Configuration: Bridges, Bonds, and VLANs

#proxmox #linuxnetworking #vlan #bonding
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3 min read
Lock Down SSH: Configuring Two-Factor Authentication (2FA) with Google Authenticator
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Lock Down SSH: Configuring Two-Factor Authentication (2FA) with Google Authenticator

#ssh #linux #2fa #security
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3 min read
Split Tunneling: Performance vs Security in the Remote Work Era
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Split Tunneling: Performance vs Security in the Remote Work Era

#networking #vpn #remotework #security
1
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3 min read
Tailscale & ZeroTier: Why You're Fighting CGNAT and Losing
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Tailscale & ZeroTier: Why You're Fighting CGNAT and Losing

#networking #vpn #tailscale #cgnat
1
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3 min read
The MTU Nightmare: Why Your VPN Connection is Fragmenting to Death
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The MTU Nightmare: Why Your VPN Connection is Fragmenting to Death

#networking #vpn #mtu #troubleshooting
1
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3 min read
VLAN Segmentation: Why Your Smart Fridge Shouldn't Talk to Your File Server
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VLAN Segmentation: Why Your Smart Fridge Shouldn't Talk to Your File Server

#networking #vlan #iot #security
1
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3 min read
WireGuard vs OpenVPN: Why You're Still Driving a Tractor in a Formula 1 World
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WireGuard vs OpenVPN: Why You're Still Driving a Tractor in a Formula 1 World

#networking #vpn #wireguard #openvpn
1
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3 min read
VLAN Segmentation: Because Your 'Smart' Toaster is a Moron (and a Security Risk)
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VLAN Segmentation: Because Your 'Smart' Toaster is a Moron (and a Security Risk)

#networking #security #vlan #iot
1
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2 min read
VLAN Segmentation: Securing IoT Devices from the Main Network
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VLAN Segmentation: Securing IoT Devices from the Main Network

#iot #security #vlan #networksegmentation
1
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2 min read
What Is Tailscale? The VPN That Doesn't Suck
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What Is Tailscale? The VPN That Doesn't Suck

#networking #tailscale #vpn #wireguard
1
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3 min read
WireGuard vs OpenVPN: Kernel Space vs User Space – A Reality Check
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WireGuard vs OpenVPN: Kernel Space vs User Space – A Reality Check

#vpn #wireguard #openvpn #networking
1
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2 min read
Exposing SSH to 0.0.0.0: The Fast Track to a Brute-Force Apocalypse
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Exposing SSH to 0.0.0.0: The Fast Track to a Brute-Force Apocalypse

#cybersecurity #linux #ssh #serverhardening
1
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3 min read
Hardcoded Passwords in Scripts: That's Not Automation, That's a Breach
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Hardcoded Passwords in Scripts: That's Not Automation, That's a Breach

#cybersecurity #scripting #powershell #devsecops
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3 min read
MFA Fatigue: Why Your 'Secure' Push Notifications Are Getting You Hacked
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MFA Fatigue: Why Your 'Secure' Push Notifications Are Getting You Hacked

#cybersecurity #identity #mfa #phishing
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3 min read
Port 3389 to the World: How to Lose Your Company Data Over the Weekend
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Port 3389 to the World: How to Lose Your Company Data Over the Weekend

#cybersecurity #windows #rdp #ransomware
2
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3 min read
Wazuh SIEM: A Threat Hunting Toolkit for People Who Hate SIEMs
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Wazuh SIEM: A Threat Hunting Toolkit for People Who Hate SIEMs

#wazuh #siem #security #devops
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2 min read
SchrĂśdinger's Backup: If You Haven't Tested a Restore, You Don't Have a Backup
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SchrĂśdinger's Backup: If You Haven't Tested a Restore, You Don't Have a Backup

#cybersecurity #disasterrecovery #backups #ransomware
17
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3 min read
Still Running SMBv1? You're Basically Inviting WannaCry to Dinner
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Still Running SMBv1? You're Basically Inviting WannaCry to Dinner

#cybersecurity #networking #windows #smb
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3 min read
The 'Domain Admin' Ego Trip: Why Handing Out DA Privileges Guarantees a Ransomware Outbreak
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The 'Domain Admin' Ego Trip: Why Handing Out DA Privileges Guarantees a Ransomware Outbreak

#cybersecurity #activedirectory #sysadmin #privilegeescalation
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3 min read
The Open S3 Bucket Epidemic: Why Reading the Manual is Apparently Too Hard
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The Open S3 Bucket Epidemic: Why Reading the Manual is Apparently Too Hard

#cybersecurity #aws #cloud #databreach
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2 min read
Your VPN is Your Biggest Vulnerability: The Irony of Perimeter Security
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Your VPN is Your Biggest Vulnerability: The Irony of Perimeter Security

#cybersecurity #vpn #zerotrust #patching
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3 min read
"admin/admin": How Your $10,000 Firewall is Compromised by a $1 Mistake
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"admin/admin": How Your $10,000 Firewall is Compromised by a $1 Mistake

#cybersecurity #networking #firewall #sysadmin
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3 min read
I Dived into the Dark Web in 2025: Shocking Secrets, Scams, and Surprises That’ll Haunt Your Browser History S01E01
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I Dived into the Dark Web in 2025: Shocking Secrets, Scams, and Surprises That’ll Haunt Your Browser History S01E01

#cybersecurity #darkweb #privacy #tor
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3 min read
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