What is a software patch? A software patch, is just a fix, a small downloadable update that improves your software. A patch can improve usability, and makes sure it is compatible with newer devices. But patching also makes your devices more secure. These patches correct bugs, meaning, they correct problems. For businesses these problems could …
Why business owners should care about software patching Read More »
Attitudes toward internet access has changed, and that has altered the expectation on businesses. Free guest Wi-Fi was a bonus feature, and now it is an expected utility by customers. Whether you own a hotel, coffee shop, pub, or even a grocery store, today’s customers absolutely expect to be able to use Wi-Fi in your …
Moving office is exciting, but it’s also one of the most stressful things you can do as a company. But that stress doesn’t have to be entirely yours! Whether you have a Managed Service Provider or not, your IT team should handle the majority of the IT headaches. There are a few things to consider …
Moving office? 10 things to keep your IT running smoothly Read More »
GRE Tunnelling. It’s a tool that should be in every network engineer’s toolbox, but not one we like to use very often. But sometimes, it’s needed. Sometimes you need to just make something work, across somebody else’s network. This week’s task is to do just that, in support of an office migration for a client. …
When designing a network, consideration should be given to separating traffic into VLANs. This is done for logical separation, security and performance reasons. This affects the convergence of a Layer 2 Network. Most Cisco switches running STP (Spanning-Tree Protocol) will be running an instance per VLAN. This is called PVST (Per VLAN Spanning-Tree), or RPVST …
Design Consideration – The effects of VLAN ID’s on Spanning-Tree convergence Read More »
A number of times in the last few weeks I have been asked by a number of people: What is ARP? There is the simple answer – which is simply a definition: Address Resolution Protocol (ARP) is a mechanism to resolve IP addresses into MAC addresses. However…that doesn’t really explain a lot. It probably doesn’t …
While troubleshooting a totally unrelated issue, one of my colleagues noticed that they were seeing packets in a tcpdump that were neither destined for nor sourced from the server. This is odd, when plugged into a switch, so we started digging. Server 1, was sending a stream of packets to Server 2 – in a …
Why am I seeing packets on my server that aren’t for this server? Read More »