FireWall ở Việtnam đă bị sụp đổ ( UnBlocked) !!!!!!greenspun.com : LUSENET : Vietnamese American Society : One Thread |
Các bạn trong nước thử vào các website ở hải ngoại thử xem...http://www.saigonbao.com/
-- Kẻ Sĩ Bắc Hà (ke_si_bac_ha@yahoo.com), January 29, 2005
ha ha chỉ có mấy thằng NGU không hiểu hết về ngôn ngữ điện toán mới dùng firewall trên b́nh diện quốc giaNGU kiểu đó chỉ có ở con cháu bác hề mà thôi , hay nói một cách khác là kiểu NGU của việt cộng thuộc tầng lớp trên , c̣n tầng lớp dưới từ khi sinh ra chúng đă chẵng được dạy dỗ ǵ nên chưa thể kết luận chúng là NGU hay khôn
tuy nhiên khi nh́n cái kiểu cần cổ dẽo mềm cũa chúng ta cũng đoán biết sớm hay muộn chúng cũng sẽ NGU như lũ cộng săn thuộc tầng lớp trên
cuối cùng ai dám nói cộng săn là không có phân chia giai cấp !
-- cayhuong (cayhuong@vietcong.ngu), January 29, 2005.
Sài Fire Wall phải có chuyên viên phần mềm giỏi để program c̣n không th́ nó sẽ crash hay không thông tin được. Nhờ chệt lắm vào có ngày toi mạng
-- (Sáu Bi Da @ Saigong.Net), January 29, 2005.
In construction, a firewall consists of a windowless, fireproof wall (or a wall of substantially heavier construction than other walls in a building) built to prevent fire from spreading beyond one section of a building. Such firewalls form the built-up equivalent of firebreaks in alandscape. Their function in containing the undesirable resembles the use of bulkheads inshipbuilding and aircraft construction.Firewalls are also found in specially prepared cars for competition use. For example, a typical conversion of a production car for rallying will include a metal firewall which seals thefuel tank apart from the interior of the vehicle. In the event of an accident resulting in fuel spillage, the firewall can prevent burning fuel from entering the passenger compartment, where it could cause serious injury or death. Firewalls have to be fitted so that they form a complete seal — usually this is done by bonding the metal sheet to the bodywork usingfiberglass resin.
The term firewall is also commonly used by automotive mechanics to refer to the barrier between the passenger and engine compartments of any vehicle.
-- Chien si (Chiensidietcong@yahoo.de), January 29, 2005.
n computing, a firewall is a piece of hardware or software which functions in a networkedenvironment to prevent some communications forbidden by the security policy, analagous to the function of firewalls in building construction. It has the basic task of controlling traffic between different zones of trust. Typical zones of trust include the Internet (a zone with no trust) and an internal network (a zone with high trust). The ultimate goal is to provide controlled connectivity between zones of differing trust levels through the enforcement of a security policy and connectivity model based on the least privilege principle.Network security analysts distinguish between:
a personal firewall, a software application which normally filters traffic entering or leaving a single computer; and:
a traditional firewall, normally running on a dedicated network device or computer positioned on the boundary of two or more networks or DMZs (demilitarized zones). Such a firewall filters all traffic entering or leaving the connected networks.
The latter definition corresponds to the conventional meaning of "firewall" in networking, and the remainder of this article addresses this type of firewall. Two main categories of such firewalls exist:
network layer firewalls
application layer firewalls.
These two types of firewall may overlap; indeed, single systems have implemented both together.
-- chien si (Chiensidietcong@yahoo.de), January 29, 2005.
Types of firewalls
Network layer firewalls
Network layer firewalls operate at a (relatively low) level of the TCP/IP protocol stack as IP-packet filters, not allowing packets to pass through the firewall unless they match the rules. The firewall administrator may define the rules; or default built-in rules may apply (as in some inflexible firewall systems). A more permissive setup could allow any packet to pass the filter as long as it does not match one or more "negative-rules", or "deny rules". Today network firewalls are built into most computer operating system and network appliances.
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Application-layer firewalls
Application-layer firewalls work on the application level of the TCP/IP stack (i.e., all browser traffic, or all telnet or ftp traffic), and may intercept all packets traveling to or from an application. They block other packets (usually dropping them without acknowledgement to the sender). In principle, application firewalls can prevent all unwanted outside traffic from reaching protected machines. By inspecting all packets for improper content, firewalls can even prevent the spread of the likes of viruses. In practice, however, this becomes so complex and so difficult to attempt (given the variety of applications and the diversity of content each may allow in its packet traffic) that comprehensive firewall design does not generally attempt this approach. The XML Firewall exemplifies a more recent kind of application-layer firewall.
A proxy device (running either on dedicated hardware or as software on a general- purpose machine) may act as a firewall by responding to input packets (connection requests, for example) in the manner of an application, whilst blocking other packets.
Proxies make tampering with an internal system from the external network more difficult, and misuse of one internal system would not necessarily cause a security breach exploitable from outside the firewall (as long as the application proxy remains intact and properly configured). Conversely, intruders may hijack a publicly-reachable system and use it as a proxy for their own purposes; the proxy then masquerades as that system to other internal machines. While use of internal address spaces enhances security, crackers may still employ methods such as IP spoofing to attempt to pass packets to a target network.
Firewalls often have network address translation (NAT) functionality, and the hosts protected behind a firewall commonly use so-called "private address space", as defined in RFC 1918. Administrators often set up such scenarios in an effort (of debatable effectiveness) to disguise the internal address or network.
Proper configuration of firewalls demands skill. It requires considerable understanding of network protocols and of computer security. Small mistakes can render a firewall worthless as a security tool.
-- Chien si (Chiensidietcong@yahoo.de), January 29, 2005.
wall is a usually solid structure that defines and sometimes protects space. Most commonly, a wall separates space in buildings into rooms, or protects or delineates a space in the open air. There are three principal types of structural walls: building walls, exterior boundary walls, and retaining walls.Stone wall of an English barn
Building walls have two main purposes: to support roofs and ceilings, and to divide space, providing security against intrusion and weather. Such walls most often have three or more separate components. In today's construction, a building wall will usually have the structural elements (such as 2×4 studs in a house wall), insulation, and finish elements, or surface (such as drywall or paneling). In addition, the wall may house various types of electrical wiring or plumbing. Electrical outlets are usually mounted in walls. Building walls frequently become works of art, such as when murals are painted on them.
On a ship, the walls separating compartments are termed 'Bulkheads', whilst the thinner walls separating cabins are termed 'Partition's'.
Boundary walls include privacy walls, boundary-marking walls, and city walls. These intergrade into fences; the conventional differentiation is that a fence is of minimal thickness and often is open in nature, while a wall is usually more than a nominal thickness and is completely closed, or opaque. More to the point, if an exterior structure is made of wood or wire, it is generally referred to as a fence, while if it is made of masonry, it is considered a wall. A common term for both is barrier, convenient if it is partly a wall and partly a fence, e.g. the Israeli West Bank barrier.
Before the invention of artillery, many European cities had protective walls. Since they are no longer relevant for defense, the cities have grown beyond their walls, and many of the walls have been torn down. Extreme examples of boundary walls include the Great Wall of Chinaand Hadrian's Wall.
In areas of rocky soils around the world, farmers (and their slaves, as in the United Statesbefore slavery was abolished) have often pulled large quantities of stone out of their fields to make farming easier, and have stacked those stones to make walls that either mark the field boundary, or the property boundary, or both.
Retaining walls are a special type of wall, that may be either external to a building or part of a building, that serves to provide a barrier to the movement of earth, stone or water. The ground surface or water on one side of a retaining wall will be noticeably higher than on the other side. A dike (construction) is one type of retaining wall, as is a levee.
The term "the Wall" frequently referred to the Berlin Wall, erected during the Cold War, which fell in 1989.
-- chien si (Chiensidietcong@yahoo.de), January 29, 2005.
Ha ha CS mo mieng la "hoi nhap dzo^ the gioi van minh" ma` co`n co cai fire wall thi dech hieu noi tui no lam cai tro he^` gi`. Cong cuoc ddau tranh cua nguoi viet nuoc ngoai la` thuc ddai ba'c cho sup me no ca'i fire wall la` coi nhu thanh cong buoc ddau.Anh em hay rang len, congratulaion !!!!!!!!!!! Technology tien len
-- (dancamau12@yahoo.com), January 29, 2005.
Các bạn trong nước vào đây thử xem......
Good Luck !!!
-- Ke Si Bac Ha (ke_si_bac_ha@yahoo.com), January 29, 2005.
Tôi bận phải đi rồi. các bạn nào rảng th́ sữa lại các Website link ở trên. Nó dính với Greenpunc..Thanks
-- Kẻ Sĩ Bắc Hà (ke_si_bac_ha@yahoo.com), January 29, 2005.
Tried, tried,and tried, again, again and again.No lucks, no lucks and no lucks, F..k......
-- Viet Cuong (wilson_beng@yahoo.com), January 29, 2005.
tui cung khong ranh , hay xem lai PC cua cac ban di :)
-- cayhuong (cayhuong@vietcong.ngu), January 29, 2005.
Đă sữa lại....Mời các bạn thử. Các bạn trong nước vào đây thử xem......
Good Luck !!!
-- Dương Dê Cụ (Duong_De_Cu@yahoo.com), January 29, 2005.
Không vào được rồi. Chắc nó ngắt tạm thời để bảo dưỡng cái firewall thôi.
-- Nguoi Hanoi (hanoidien@hotmail.com), January 30, 2005.
Ðường xưa lối cũLê Khắc Anh Hào
* * *
Em đã trở về thăm cố hương
Chân son có viếng lại con đường
Ngày xưa áo lụa bay tà mỏng
Lối cũ còn gì chút phấn hương?
Có nhớ ngày nào hoa vỡ tan
Khi anh bẻ súng, lệnh phải hàng
Khi em lịm khóc bên đường vắng
Khi mắt em nhòa lệ trái ngang.
Bây giờ đường cũ vết chân xưa
Dường vẫn còn in dấu bụi mờ
Cũng vẫn đường xưa, sao nắng lạ
Không chết bao giờ những giấc mơ.
Thì cũng con đường anh đã qua
Nay em thui thủi gót chân ngà
Ðường xưa cờ đỏ teo trong nắng
Ðất lạnh vô tình chết cỏ hoa.
Cũng vẫn lối mòn dưới nắng xuân
Lại nghe gió gọi áng mây buồn
Về chung tan tác hồn hưng quốc
Một sớm trời xuân quy cố hương.
-- nguoicaonien (xuanhutraidat@yahoo.com), February 01, 2005.