Tag

#network-security

444 posts142 followers

Explore Hashnode

Alternatives

Onlive Server1d ago · 10 min read

Configuring VMware ESXi Enterprise Networking: vSwitches, VLAN Segmentation, and DMZ Demarcation

Securing enterprise workloads on VMware ESXi requires more than connecting virtual machines to a virtual switch. Administrators must define network boundaries, assign VLANs consistently, restrict comm

onliveinfotech.hashnode.dev

Kazem Mortazavi2d ago · 3 min read

Firewall Policy Cleanup: Removing Stale Rules Without Breaking Services

A firewall is only as strong as the policy running on it. In a recent review of a multi-branch organization, the main firewall had more than 2,000 rules. About a third had not matched a single packet

securityland.hashnode.dev

Kazem Mortazavi4d ago · 3 min read

Why Port-Based Firewall Rules No Longer Protect Your Network

Most firewalls were built around one simple rule: this port is open, that port is closed. That model made sense when applications used distinctive ports and most traffic could be read. Today it breaks

securityland.hashnode.dev

Kazem Mortazavi5d ago · 2 min read

Is the VPN Era Over? Why ZTNA Is Replacing Traditional Remote Access

Remote access used to mean one thing: a VPN tunnel into the office network. That model made sense when most staff worked from the office. Today employees work from home, from cafés and from hotels, wh

securityland.hashnode.dev

Netomize Official Blog6d ago · 10 min read

Introducing Frame Bench: read, edit and build packet captures at the byte level

Introducing Frame Bench Every network engineer, incident responder and protocol developer has been here. You have a capture. It is almost what you need. One address has to change. A checksum is wrong.

3 blog.netomize.ca

Kazem Mortazavi5d ago · 3 min read

Privileged Accounts: The Smallest Weak Point That Can Take Down a Network

Most major cyber incidents follow a familiar path. An attacker gets in through something small, such as a phishing email or a minor vulnerability, but the real target is an account with high privilege

securityland.hashnode.dev

Kazem Mortazavi6d ago · 3 min read

How Long Would It Take You to Notice a Large Data Transfer Out of Your Network?

Here is a question worth asking your team this week: if a multi-gigabyte file left your network today, how many hours would pass before anyone noticed? For many organizations the honest answer is "day

securityland.hashnode.dev

Harpreet Singh KapulaOct 14 · 6 min read

What "AI-Optimized Wi-Fi" Actually Means: Reading a Router's Channel-Selection Logs

"AI-Optimized Wi-Fi" shows up on router boxes next to mesh support and WPA3 these days, implying something predictive — a system anticipating congestion before it happens, steering your devices ahead

singh-technical-blog.hashnode.dev

George EzejioforOct 12 · 19 min read

Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible)

Part of the homelab build series. Every packet in my cluster already passes through Cilium's eBPF datapath on all 20 nodes. Hubble turns that into a live map of who talks to whom, with no sidecars and

georgeezejiofor.com

Kazem MortazaviOct 10 · 2 min read

FortiGate, Sophos or Cisco? The firewall question you should ask last

Most organisations that ask us about a firewall start with the same question: "FortiGate, Sophos or Cisco?" The honest answer is that this should be the last question, not the first. A firewall that w

securityland.hashnode.dev

Search Hashnode

Explore Hashnode

Trending tags this week

Configuring VMware ESXi Enterprise Networking: vSwitches, VLAN Segmentation, and DMZ Demarcation

Firewall Policy Cleanup: Removing Stale Rules Without Breaking Services

Why Port-Based Firewall Rules No Longer Protect Your Network

Is the VPN Era Over? Why ZTNA Is Replacing Traditional Remote Access

Introducing Frame Bench: read, edit and build packet captures at the byte level

Privileged Accounts: The Smallest Weak Point That Can Take Down a Network

How Long Would It Take You to Notice a Large Data Transfer Out of Your Network?

What "AI-Optimized Wi-Fi" Actually Means: Reading a Router's Channel-Selection Logs

Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible)

FortiGate, Sophos or Cisco? The firewall question you should ask last