--- title: "#valtersit articles | Hashnode" description: "Explore 6 articles tagged #valtersit on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/valtersit" --- Tag # #valtersit 6 posts · 0 followers [Hugo](https://hashnode.com/@hugovalters) · [Sep 22](https://hashnode.com/posts/valtersit-cve-threat-ip-api-integration-guide-for-firewalls-siem-and-ci-cd-subtitle-working-code-for-five-real-integrations-firewall-blocklists-siem-enrichment-ci-cd-gates-change-tracking-and-detection-rules-all-checked-against-the-live-api/6ab25f756504d3ef2dff5fec) ### [ValtersIT CVE + Threat-IP API: Integration Guide for Firewalls, SIEM and CI/CD" subtitle: "Working code for five real integrations: firewall blocklists, SIEM enrichment, CI/CD gates, change tracking, and detection rules — all checked against the live API.](https://hugovalters.hashnode.dev/valtersit-cve-threat-ip-api-integration-guide-for-firewalls-siem-and-ci-cd-subtitle-working-code-for-five-real-integrations-firewall-blocklists-siem-enrichment-ci-cd-gates-change-tracking-and-detection-rules-all-checked-against-the-live-api?utm_source=hashnode&utm_medium=feed) Working code for five real integrations: firewall blocklists, SIEM enrichment, CI/CD gates, change tracking, and detection rules — live API. 11 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/valtersit-cve-threat-ip-api-integration-guide-for-firewalls-siem-and-ci-cd-subtitle-working-code-for-five-real-integrations-firewall-blocklists-siem-enrichment-ci-cd-gates-change-tracking-and-detection-rules-all-checked-against-the-live-api?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Sep 22](https://hashnode.com/posts/tls-certificate-automation-certbot-and-acme-at-scale-valtersit-com/6ab255b21f78c31b9de90030) ### [TLS Certificate Automation: Certbot and ACME at Scale](https://hugovalters.hashnode.dev/tls-certificate-automation-certbot-and-acme-at-scale-valtersit-com?utm_source=hashnode&utm_medium=feed) TLS Certificate Automation: Certbot and ACME at Scale www.valtersit.com 3 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/tls-certificate-automation-certbot-and-acme-at-scale-valtersit-com?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Sep 22](https://hashnode.com/posts/docker-on-zimaboard-memory-constraints-workarounds-valtersit-com/6ab25544029d7905662e7090) ### [Docker on ZimaBoard: Memory Constraints & Workarounds](https://hugovalters.hashnode.dev/docker-on-zimaboard-memory-constraints-workarounds-valtersit-com?utm_source=hashnode&utm_medium=feed) Docker on ZimaBoard: Memory Constraints & Workarounds valtersit.com 4 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/docker-on-zimaboard-memory-constraints-workarounds-valtersit-com?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Jul 27](https://hashnode.com/posts/proxmox-sdn-software-defined-networking-for-multi-node-clusters/6a6744cd937572c82df1d9a7) ### [Proxmox SDN: Software-Defined Networking for Multi-Node Clusters](https://hugovalters.hashnode.dev/proxmox-sdn-software-defined-networking-for-multi-node-clusters?utm_source=hashnode&utm_medium=feed) I got the call at 2:47 AM. A junior admin had deleted a VNet while five production VMs were running. All of them dropped off the net www.valtersit.com 4 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/proxmox-sdn-software-defined-networking-for-multi-node-clusters?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Jul 27](https://hashnode.com/posts/pfsense-vs-opnsense-a-pragmatic-comparison-for-self-hosters-valtersit-com/6a673e75f511e1de12266250) ### [pfSense vs OPNsense: A Pragmatic Comparison for Self-Hosters](https://hugovalters.hashnode.dev/pfsense-vs-opnsense-a-pragmatic-comparison-for-self-hosters-valtersit-com?utm_source=hashnode&utm_medium=feed) I’ve been running firewalls since the days of m0n0wall on CF cards, and I still remember the sinking feeling at 2 AM when a bad www.valtersit.com 3 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/pfsense-vs-opnsense-a-pragmatic-comparison-for-self-hosters-valtersit-com?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Jul 27](https://hashnode.com/posts/proxmox-sdn-multi-node-cluster-networking/6a673d73d90ba8ea7c0c21f1) ### [Proxmox SDN: Multi-Node Cluster Networking](https://hugovalters.hashnode.dev/proxmox-sdn-multi-node-cluster-networking?utm_source=hashnode&utm_medium=feed) Introduction — Why SDN in Proxmox Isn’t Just a Buzzword www.valtersit.com 3 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/proxmox-sdn-multi-node-cluster-networking?utm_source=hashnode&utm_medium=feed)