Download PDF by Lucian Gheorghe: Designing and Implementing Linux Firewalls with QoS using

with a few realizing of Linux defense threats and matters, or anybody drawn to securing their platforms in the back of a firewall. easy wisdom of Linux is presumed yet except that this booklet exhibits you the way to do the remaining, from configuring your procedure to facing protection breaches

Show description

Read Online or Download Designing and Implementing Linux Firewalls with QoS using netfilter, iproute2, NAT and L7-filter PDF

Similar linux books

Get Linux Pocket Guide (2nd Edition) PDF

Should you use Linux on your daily paintings, this well known pocket advisor is the ideal on-the-job reference. the second one variation has increased from Fedora-only insurance to distro-neutral, with useful info on a much broader diversity of instructions asked via readers.

Linux Pocket consultant presents an equipped studying direction for Linux use, instead of Linux programming and approach management. You’ll locate thoughts for the main worthy instructions, grouped via performance. For newbies who have to wake up to hurry on Linux use, and skilled clients who need a concise and practical reference, this consultant presents speedy solutions.

Read e-book online Ubuntu Server Administration PDF

Administer Ubuntu Server within the EnterpriseRealize a dynamic, reliable, and safe Ubuntu Server setting with professional tips, suggestions, and strategies from a Linux specialist. Ubuntu Server management covers each side of method management--from clients and dossier structures to functionality tuning and troubleshooting.

New PDF release: Instant XBMC

Construct your own leisure approach in XBMC with this quickly and easy-to-follow advisor evaluation examine whatever new straight away! a brief, speedy, centred consultant supplying rapid effects Use accessories to extend XBMC's functions and play video from Youtube, Vimeo, and different web assets circulation song and video for your hand held equipment utilizing UPnP switch how XBMC seems and feels to raised fit your tastes utilizing skins intimately This booklet has been particularly created to supply you with the entire details you should get arrange with XBMC.

Download PDF by Chris Binnie: Practical Linux Topics

Teaches you the way to enhance your hands­-on wisdom of Linux utilizing difficult, real-world eventualities. every one bankruptcy explores a subject matter that has been selected particularly to illustrate the best way to increase your base Linux approach, and get to the bottom of vital matters. This publication permits sysadmins, DevOps engineers, builders, and different technical pros to make complete use of Linux’s rocksteady origin.

Extra resources for Designing and Implementing Linux Firewalls with QoS using netfilter, iproute2, NAT and L7-filter

Example text

1D) was designed to prevent network loops. STP works by deactivating links that can form a network loop, raising the possibility of deploying redundant links in the network that, without STP, would create network loops. STP manipulation is a type of threat in which an attacker broadcasts STP configuration or topology change BPDUs (Bridge Protocol Data Units), forcing STP recalculations and expecting that the attacker becomes the root bridge. As root bridge, the attacker can sniff Ethernet frames belonging to other VLANs.

Teardrop sent fragmented IP packets that could not be assembled properly by the attacked machine, by manipulating the offset values of the packets. The effect was a kernel panic in Linux or a blue screen in Windows. A reboot solved the problem until the next attack. Layer 4 Security Threats TCP and UDP are the transport protocols found at OSI Layer 4—transport. We've learned about them in more detail in Chapter 1, with TCP being more complex than UDP because it's a connection-oriented protocol that has a flow-control mechanism (windowing), while UDP is simple and connectionless, and with no flow-control implemented in the protocol.

The DHCP lease time is configurable from 120 seconds to whatever the administrator chooses. DHCP starvation attack consists of consuming the IP address space allocated by a DHCP server. This can easily be accomplished by an attacker by broadcasting a large number of DHCP requests using spoofed MAC addresses. The DHCP server will lease its IP addresses one by one to the attacker until it runs out of available IPs for new, normal clients. This leads to Denial of Service for those clients in the network requesting IP addresses from the DHCP server.

Download PDF sample

Designing and Implementing Linux Firewalls with QoS using netfilter, iproute2, NAT and L7-filter by Lucian Gheorghe

by William

Rated 4.61 of 5 – based on 5 votes