Lightweight Portable Security (LPS), Public Edition (LPS-Public) is a security-focused Linux boot disc with a small memory footprint. It creates a pristine, trusted end-node within the volatile memory of an unmanaged computer system. LPS boots a small operating system from a CD. As of version 1.7, the distribution was rebranded as Trusted End Node Security, or TENS. So this is very similar to Tails in that you'll lose all your data on reboot and probably have a fair amount of frustration at installing software that doesn't come pre-installed (which seems limited to DoD internal tools).

.A primary private IPv4 address from the IPv4 address range of your VPC.One or more secondary private IPv4 addresses from the IPv4 address range of your VPC.One Elastic IP address (IPv4) per private IPv4 address.One public IPv4 address.One or more IPv6 addresses.One or more security groups.A MAC address.A source/destination check flag.A descriptionYou can create and configure network interfaces in your account and attach them toinstances in your VPC. Your account might also have requester-managednetwork interfaces, which are created and managed by AWS services to enable you touseother resources and services. You cannot manage these network interfaces yourself.For moreinformation, see.This AWS resource is referred to as a network interface in the AWS Management Consoleand the Amazon EC2 API. Therefore, we use 'network interface' in this documentationinstead of'elastic network interface'.

The term 'network interface' in this documentationalways means'elastic network interface'. Contents.Network interface basicsYou can create a network interface, attach it to an instance, detach it from aninstance, and attach it to another instance. The attributes of a network interfacefollow it as it's attached or detached from an instance and reattached to anotherinstance. When you move a network interface from one instance to another, networktraffic is redirected to the new instance.You can also modify the attributes of your network interface, including changing itssecurity groups and managing its IP addresses.Every instance in a VPC has a default network interface, called the primarynetwork interface. You cannot detach a primary network interface froman instance.

You can create and attach additional network interfaces. The maximumnumber of network interfaces that you can use varies by instance type. For moreinformation, see.Public IPv4 addresses for network interfacesIn a VPC, all subnets have a modifiable attribute that determines whether networkinterfaces created in that subnet (and therefore instances launched into that subnet)are assigned a public IPv4 address. For more information, see in the Amazon VPC User Guide.

Thepublic IPv4 address is assigned from Amazon's pool of public IPv4 addresses. Whenyoulaunch an instance, the IP address is assigned to the primary network interfacethat's created.When you create a network interface, it inherits the public IPv4 addressing attributefrom the subnet.

If you later modify the public IPv4 addressing attribute of the subnet,the network interface keeps the setting that was in effect when it was created.Create a management network.Use network and security appliances in your VPC.Create dual-homed instances with workloads/roles on distinctsubnets.Create a low-budget, high-availability solution.Creating a management networkYou can create a management network using network interfaces. In this scenario, theprimarynetwork interface (eth0) on the instance handles public traffic and the secondarynetwork interface (eth1) handles backend management traffic and is connected toaseparate subnet in your VPC that has more restrictive access controls.

The publicinterface, which may or may not be behind a load balancer, has an associatedsecurity group that allows access to the server from the internet (for example,allow TCP port 80 and 443 from 0.0.0.0/0, or from the load balancer)while the private facing interface has an associated security group allowingSSH access only from an allowed range of IP addresses either withinthe VPC or from the internet, a private subnet within the VPC or a virtual privategateway.To ensure failover capabilities, consider using a secondary private IPv4 for incomingtraffic on a network interface. In the event of an instance failure, you can movethe interface and/or secondary private IPv4 address to a standby instance. Use network andsecurity appliances in your VPCSome network and security appliances, such as load balancers, network address translation(NAT) servers, and proxy servers prefer to be configured with multiple networkinterfaces. You can create and attach secondary network interfaces to instancesin aVPC that are running these types of applications and configure the additionalinterfaces with their own public and private IP addresses, security groups, andsource/destination checking.Creating dual-homed instances with workloads/roles on distinct subnetsYou can place a network interface on each of your web servers that connects to a mid-tiernetwork where an application server resides. The application server can also bedual-homed to a backend network (subnet) where the database server resides. Insteadof routing network packets through the dual-homed instances, each dual-homedinstance receives and processes requests on the front end, initiates a connectiontothe backend, and then sends requests to the servers on the backend network.Create a low budgethigh availability solutionIf one of your instances serving a particular function fails, its network interfacecan beattached to a replacement or hot standby instance pre-configured for the samerolein order to rapidly recover the service.

For example, you can use a networkinterface as your primary or secondary network interface to a critical servicesuchas a database instance or a NAT instance. Archiver 3.0.0 cr3 for mac pro. If the instance fails, you (or morelikely, the code running on your behalf) can attach the network interface to ahotstandby instance. Because the interface maintains its private IP addresses, ElasticIP addresses, and MAC address, network traffic begins flowing to the standbyinstance as soon as you attach the network interface to the replacement instance.Users experience a brief loss of connectivity between the time the instance failsand the time that the network interface is attached to the standby instance, butnochanges to the VPC route table or your DNS server are required.Best practices for configuringnetwork interfaces.

Udev rules ( /etc/udev/rules.d)Identifies network interfaces when they are attached, detached, orreattached to a running instance, and ensures that the hotplug script runs( 53-ec2-network-interfaces.rules). Maps the MACaddress to a device name( 75-persistent-net-generator.rules, which generates70-persistent-net.rules).hotplug scriptGenerates an interface configuration file suitable for use with DHCP( /etc/sysconfig/network-scripts/ifcfg-eth N).Also generates a route configuration file( /etc/sysconfig/network-scripts/route-eth N).DHCP scriptWhenever the network interface receives a new DHCP lease, this script queries theinstance metadata for Elastic IP addresses. For each Elastic IP address, itadds a rule to the routing policy database to ensure that outbound trafficfrom that address uses the correct network interface.

It also adds eachprivate IP address to the network interface as a secondary address.ec2ifup eth NExtends the functionality of the standard ifup. Afterthis script rewrites the configuration filesifcfg-eth N androute-eth N, it runsifup.ec2ifdown eth NExtends the functionality of the standard ifdown. After this scriptremoves any rules for the network interface from the routing policydatabase, it runs ifdown.ec2ifscanChecks for network interfaces that have not been configured and configuresthem.This script isn't available in the initial release of ec2-net-utils.To list any configuration files that were generated by ec2-net-utils, use thefollowing command.

To create a network interface using the console.Open the Amazon EC2 console at.In the navigation pane, choose NetworkInterfaces.Choose Create Network Interface.For Description, enter a descriptive name.For Subnet, select the subnet.For Private IP (or IPv4 Private IP), enter theprimary private IPv4 address. If you don't specify an IPv4 address, weselect an available private IPv4 address from within the selectedsubnet.(IPv6 only) If you selected a subnet that has an associated IPv6 CIDRblock, you can optionally specify an IPv6 address in the IPv6IP field.For Security groups, select one or more securitygroups.Choose Yes, Create. To attach a network interface when launching an instance using the console.Open the Amazon EC2 console at.Choose Launch Instance.Select an AMI and instance type and choose Next: ConfigureInstance Details.On the Configure Instance Details page, select a VPCfor Network, and a subnet forSubnet.In the Network Interfaces section, the console enables you tospecify up to two network interfaces (new, existing, or a combination) whenyou launch an instance. You can also enter a primary IPv4 address and one ormore secondary IPv4 addresses for any new interface.You can add additional network interfaces to the instance after you launchit. The total number of network interfaces that you can attach varies byinstance type.

For more information, see. If you specify more than one network interface, you cannot auto-assign a public IPv4address to your instance.(IPv6 only) If you're launching an instance into a subnet that has an associated IPv6CIDR block, you can specify IPv6 addresses for any network interfaces thatyou attach. Under IPv6 IPs, choose AddIP. To add a secondary IPv6 address, choose AddIP again. You can enter an IPv6 address from the range of thesubnet, or leave the default Auto-assign value to letAmazon choose an IPv6 address from the subnet for you.Choose Next: Add Storage.On the Add Storage page, you can specify volumes to attach to theinstance besides the volumes specified by the AMI (such as the root devicevolume), and then choose Next: Add Tags.On the Add Tags page, specify tags for the instance, such as auser-friendly name, and then choose Next: Configure SecurityGroup.On the Configure Security Group page, you can selecta security group or create a new one.

Choose Review andLaunch. To detach a network interface from an instance using the Instances page.Open the Amazon EC2 console at.In the navigation pane, choose Instances.Choose Actions, Networking,Detach Network Interface.In the Detach Network Interface dialog box, select the networkinterface and choose Detach.You can't use the Amazon EC2 console to detach a network interface that is attachedto aresource from another service, such as an Elastic Load Balancing load balancer,a Lambda function, aWorkSpace, or a NAT gateway. The network interfaces for those resources will bedeletedwhen the resource is deleted. To change the security group of a network interface using the command lineYou can use one of the following commands. For more information about thesecommand line interfaces, see.(AWS CLI).(AWS Tools for Windows PowerShell)Changing the source or destination checkingThe Source/Destination Check attribute controls whether source/destinationchecking is enabled on the instance. Io graphic astrology tcr 6.0.4 for mac pro. Disabling this attribute enables an instancetohandle network traffic that isn't specifically destined for the instance.

Forexample, instances running services such as network address translation, routing,ora firewall should set this value to disabled. The default value isenabled. To change source/destination checking for a network interface using the commandlineYou can use one of the following commands. For more information about thesecommand line interfaces, see.(AWS CLI).(AWS Tools for Windows PowerShell)Associating an Elastic IP address (IPv4)If you have an Elastic IP address (IPv4), you can associate it with one of the privateIPv4addresses for the network interface. You can associate one Elastic IP addresswitheach private IPv4 address.You can associate an Elastic IP address using the Amazon EC2 console or the commandline. To associate an Elastic IP address using the command lineYou can use one of the following commands. For more information about thesecommand line interfaces, see.(AWS CLI).(AWS Tools for Windows PowerShell)Disassociating an Elastic IP address (IPv4)If the network interface has an Elastic IP address (IPv4) associated with it, youcandisassociate the address, and then either associate it with another networkinterface or release it back to the address pool.

This is the only way to associatean Elastic IP address with an instance in a different subnet or VPC using a networkinterface, as network interfaces are specific to a particular subnet.You can disassociate an Elastic IP address using the Amazon EC2 console or the commandline. To disassociate an Elastic IP address using the command lineYou can use one of the following commands. For more information about thesecommand line interfaces, see.(AWS CLI).(AWS Tools for Windows PowerShell)Assigning an IPv6 addressYou can assign one or more IPv6 addresses to a network interface. The network interfacemust be in a subnet that has an associated IPv6 CIDR block. To assign a specificIPv6 address to the network interface, ensure that the IPv6 address is not alreadyassigned to another network interface.

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