If you're used to managing an on-premises network, moving to managing one in Google Cloud Platform (GCP) can be daunting. Some controls are similar, but often configuration (or what configuration implies) is different enough that you'll need to take a step back and figure out what's different. In this post we'll take you on a short tour of some of the native GCP network security controls that you're likely familiar with on-premises and explain what's different when you're using those controls with GCP. When you use the GCP network, your services can benefit from global reachability at high speed and a highly flexible environment. And you can skip managing network equipment such as routers and switches.
GCP's network construct is known as a virtual private cloud (VPC) network. VPC networks, including their associated routes and firewall rules, are global resources. They are not associated with any particular region or zone, making it easier to get flexibility and high performance for your GCP workloads. But you'll still have essential components to understand to make sure your cloud network is correctly configured. Here are the key areas to explore.
As with an on-premises network, a VPC network can be subdivided into subnets, or subnetworks. A GCP subnet has a primary IP address range defined as a contiguous private RFC 1918 CIDR block. In GCP, each subnet that you create is associated with a region. Networks can contain one or more subnets in any given region. Subnets can extend across zones within a region. This diagram shows a global VPC network with subnets divided into various GCP regions.
To define and create a subnet within a VPC network, use the GCP console or the gcloud CLI. If you've ever wished it was easier to extend a subnet range after creating it and assigning IP addresses to resources, then GCP has you covered—you can extend a subnet range without disrupting running services. For example, you can expand a subnet with a prefix mask of /20 to a prefix max of /16 without having to reconfigure your existing workload.
Routing is the process where network packets are directed from their source toward their destination through intermediate network nodes. When you're managing an on-premises network, these intermediate network nodes are typically network hardware devices such as routers, gateways or firewalls.
Routing on GCP is carried out through Google's software-defined network (SDN). GCP routes tell the VPC network where to send packets destined for a particular IP address. When you create a network, it has default routes created that let instances in a network reach each other across subnets as well as for internet traffic. You can also add user-defined routes for specific destination ranges that direct traffic to a VPN tunnel, a specially configured instance, or some other destination that you can configure using the console or the gcloudCLI.
A route alone is not enough to get a packet to its destination. You'll need to configure firewall rules to permit the packet to reach its destination.
With a traditional on-premises stateful firewall, you have a firewall within your network, and all traffic between subnets or the internet passes through it. With these on-premises firewalls, you're required to configure a set of rules that set up access lists between source and destination IP addresses or ports. You configure actions for each rule: allow (accept), drop (deny), track and log. Many of these firewalls have additional functionality, but all have the core ability to define the rules.
The difference when using GCP networking is that every VPC network functions as a distributed firewall. Firewall rules are defined at the network level and connections are allowed or denied on a per-instance basis. You can think of GCP firewall rules as existing not only between your instances and other networks, but between individual instances within the same network.
GCP firewalls are stateful, and as with traditional on-premises firewalls, also provide the core capability of setting up accept/deny rules. However, there are some other GCP firewall configuration capabilities that are definitely worth understanding to give you a lot more flexibility.
One feature is the ability to set up source and target filtering rules for ingress rules by using service accounts. A service account represents an identity associated with a Compute Engine virtual machine (VM) instance. This means that you focus on setting up rules where the source or destination is an identity rather than an IP address. When you set up a rule with a service account as the source, it matches connections that have a source IP address the same as the primary internal IP address of the instances you created with that service account. Where the target is a service account, the rule is assigned only to instances in the network that were created by that service account. This adds flexibility and helps reduce human error by allowing the configuration of firewalls by intent. For example, if you name your service accounts so they reflect their role, you are essentially telling the web servers (a service account ID = web server) to communicate with the application servers (service account application servers).You do not need to worry about IP addresses.
Another option for firewall routing with GCP is network tags, which are a way for networks to identify which instances are subject to certain firewall rules and network routes. Network tags are less secure than service accounts, but they're a good fit for specific use cases with less stringent security requirements, like development configurations. You cannot use both service accounts and tags in the same rule.
An IPSec virtual private network (VPN) allows you to connect your VPC network to your physical, on-premises network or to another cloud provider. At the on-premises site, you will need an IPSec VPN gateway. At the GCP end, the Cloud VPN lets you set up a virtual VPN gateway running in GCP, which allows you to forward packets through the VPN. This can be configured via the console or the gcloud CLI.
When configuring the VPN between your on-premises network and a VPC network, you can dynamically advertise routes using the internet routing protocol Border Gateway Protocol (BGP) through the VPN connection established with GCP. In GCP, you'll create BGP peering between the on-premises network and a Cloud Router on GCP, dynamically exchanging all relevant routes. At the on-premises end, you therefore need to configure a VPN gateway or router with BGP capabilities.
If you're interested in learning more in general about GCP networking products, Data center professionals: networking is a great starting place. And to get a deeper understanding of using VPNs with GCP, read the Cloud VPN documentation.


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BMW M 635 CSI
MakeBMW
ModelM 635 CSI
Acceleration 0-100 km/h6,4 sec
Price offeredPrice on request
Sharknose "design by Paul Bracq
Only 5,331 left-hand drive BMW M 635 CSI were built
Italian first delivery
Only 83,140 KM - complete owner history known
The history of the M 635 CSI
With the M635CSi, BMW ushered in a special era of luxury and high performance from April 1984. The basis was the legendary M88 engine that was first used in the M1. This four-valve engine has been slightly revised and equipped with two overhead camshafts (DOHC) and six individual throttle valves. Thanks to the revised cylinder head and the new injection system, the engine output has been increased by another 9 hp compared to the M1. The M CSI was supplemented with a reinforced manual sports transmission from Getrag. The rear axle received a multi-disc self-locking differential with a 25% locking degree. The chassis was also lowered by 10 mm, including reinforced stabilizers. Of course, the braking system was also adapted to the sporting needs. ABS was standard on board.
Paul Bracq was responsible for this timeless and already very progressive design.
In racing too, the M635 CSI built on the success of its predecessor - the 3.0 CSL. The 635CSi celebrated victories in the 24-hour race at Spa-Francorchamps in the European Touring Car Championship (champions 1981, 1983, 1986) in 1983, 1985 and 1986.
"Sharknose" or "Bayern Express" were the nicknames that were given to this sports car. With a term of over 13 years, the first "six" is the longest-produced series from BMW.
History of the offered M 635 CSI
This "matching" number BMW M635 CSI was delivered in Rome / Italy and approved with the license number ROMA 42639 H on Mr. Armando B. on April 19, 1985. Thus, this BMW belongs to the coveted and more original first series without a catalytic converter.
Within Rome, the owner changed in 1996 to Mr. Giuseppe V. who sold this BMW to an important collector in Rome in 2002. Of course, it also bore its Roman license plate. In 2017 we acquired this "Sharknose" for the first time with a mileage of almost 79,000. We carefully repaired the damage to the stand and then moved to another important collection in Cologne. Here it has been moved more over the years and so the odometer now shows 83,140.
Delivered in the metallic color "Diamantschwarz 181", with matching black leather upholstery 0203 and manually adjustable sports seats, four power windows, ABS and without radio (!) The first owner probably wanted to enjoy the pleasant sound of the M88 engine and all other owners did it equal. The on-board computer is without pixel errors, the function tester is without errors. The engine starts immediately when requested, the gearbox and the braking system perfect. The paintwork is excellent. The clear coat has been renewed over the years. There are hardly any points of criticism about this vehicle, the history is complete and comprehensible.
At the moment we have German registration documents, of course copies of the Italian registration documents are also available. There is also an operating manual for this vehicle, tools and jack
We are pleased that we can offer such a rare, authentic and well-maintained BMW M 635 CSI on commission.
The mileage is read and we cannot guarantee the actual mileage.
This offer is non-binding and subject to prior sale. Additional services such as large 154 pt. Comprehensive inspection, new TÜV, H approval, transport, registration in Germany, appraisals, etc. are possible for a separate expense allowance.
This vehicle offered here is in our factory in Cologne-Kalk, Vietor Str. 85, 51103 Cologne. Here you will find a selection of 80 historically valuable classics - ONLY BY PRE-REGISTRATION.
For information about our range of services and selection of vehicles, please visit www.scuderia-sportiva-colonia.com
Exterior colourblack
Interior colourblack
Manufacturer's colour code (exterior)Diamantschwarz Metallik

redpajama_set_name: RedPajamaCommonCrawl


I'm looking forward to my fifth year at Fairview. I'll be teaching PIB Algebra 2/3, IB Elementary Functions/Calc 1, and Algebra 1 this year; as well as coaching football. I'm pumped to see what our football team can accomplish in one of the toughest conferences in the state. My family and I had a great summer bouncing around and camping at various places in the state. Awesome! Let's have a great year!!!