| \ x10 |
Probe tcp null q |
The probe command tells nmap to send a specified string to identify the service. The parameters are as follows:
This must be TCP or UDP. NMAP only uses a probe that matches the Protocol it tries to scan the service.
This is a pure English name.
Tell Nmap what to send. It must have a q, marking the start and end of the string with a separator. It allows the following standard escape characters of C or Perl strings: \, \ a, \ B, \ f, \ n, \ r, \ t, \ v, and \ xHH (H i
Elementary stream
In the MPEG-2, bit streams that contain encoded images, sounds, or data are called the basic stream ES (elementary stream ), it only contains one type of data (audio, video, or subtitle). What we call "audio", "video", or "bit stream" is elementary stream, the format is generally determined only by the data contained (such as the video codec ).
Packetized elementary streamAfter packaging, es becomes the package's basic stream PES (p
testing machine and a single disk and multiple zones for PV.
(Ii) volume group
In a VG, the disk space is divided into fixed units, called extent. We usually call it "pe ".
PE is the smallest storage unit of the entire LVM, that is to say, in fact, our file data is written to PE for processing.
In short, PE is like a block in Oracle.
The focus of LVM is that it can elastically adjust the capacity of the file system. This is achieved by exchanging PES
pair of data center interconnection devices (PES) Initiate a two-layer VPN to expand the two-layer network (VLAN) between data centers. Pay attention to the end-to-end loop to avoid problems. Two implementation technologies are available for the MPLS network-based data center L2 interconnection solution: l mpls vll (Mpls Virtual Leased Line): To achieve point-to-point L2 interconnection between two data centers. L VPLS (Virtual Private LAN Service):
TS supports multiplexing, so it can be used to transmit multi-layer programs after reuse. In the process of multiplexing, we should note the time reference and synchronization problems that need to be faced during decoding. Because the de-multiplexing requires synchronization of various information, during the multiplexing process, you need to insert the relevant time information: pts, DTS, and PCR.
During ts formation, PTS and DTS inject the clock information into the
1, establish a two-way trust relationship on the target domain.
2. Turn off SID filtering on the target domain
SOURCE domain: old.com
Target domain: net.com
Netdom Trust Old.com/domain:net.com/quarantine:no
/usero:old\administrator/password:*
3, the ADMT tool is arranged on the target domain.
4. Run the command line ADMT key on the target domain to generate the. pes file (password is not the source domain administrator's password, but to protec
limitations imposed by any other solution based on the hardware implementation of the data channel. Winpath is the cornerstone of a truly interoperable solution that enables operators to select and deploy the most efficient, feature-rich, cost-effective controllers that can be upgraded without the need to be constrained by hardware devices.Winpath's ability to implement complex SLA capabilities based on its thousands of independent, tiered-tuned queues can provide differentiated services for us
Protocol (DHCP) client.
For more databases, follow the link below:
Http://nmap.org/book/nse-library.html
Http://nmap.org/nsedoc/Nmap API
The Nmap API is very useful for security researchers and penetration testers. You can customize the settings during scanning and utilization. The data obtained after the nmap scan host ends is used as the script parameter. The host and parameters are encapsulated into a lua table. If the script matches hostrule, the host information will be obtained. If the sc
format is 12-bit "1111 1111 ".
3.6 Header Information Decoding
The adts header information consists of two parts: Fixed Header information followed by variable header information. The data in the Fixed Header information is the same for each frame, while the variable header information is variable between frames.
3.7 decode Element Information
In AAC, the composition of original data blocks may have six different elements. They are
SCE: Single Channel element. A single channel is basically comp
different session timer settings.
Connect two terminals with different media capabilities and different SDP messages by reporting in two different control sessions.
To support different network types (V4, V6), and different transmission types, TCP/UDP/sctp/TLS
C. Multi-Point call management
In this scenario, multiple CPE (CPE is the abbreviation of "mermerpremiseequipment", literally referred to as "Use
the user transfers data again, the CO end quickly enters the L0 status.
When the user has not transmitted data for a limited period of time, both the CO and CPE end enter the L3 sleep mode to further reduce the transmit power. At this time, the physical layer link is still connected, however, there is no payload transfer. When there is a data transfer requirement again, it takes about three seconds to quickly enter the L0 mode after training.
In addi
: When you need to add new sites or users to the vpn service, you only need to install a service provider with a client equipment (cpe) or the access link of the security client software. Service providers are responsible for any site and trunk-level activation required. The optimal vpn design requires only one connection for private intranet, semi-dedicated exists, and public internet access. This integration capability saves the cost for enterprises
design, and DMT by the Amati communications company invented, the difference is the way to send data. ANSI Standard T1.413 is based on DMT, DMT has become an international standard, and Cap is a great decline. Recently, many of the g.lite standards are very good, but DMT and g.lite two kinds of standards have their own strengths, respectively, applicable to different fields. DMT is a full speed ADSL standard, which supports the high speed downlink/uplink rate of 8mbps/1.5mbps, but the DMT requi
Memory aliasing (Memory alias usage)
The compiler must assume that different pointers may point to the same location in memory. This has resulted in a major impediment to optimization.
For example:
void Twiddle1 (int *xp, int *yp)
{
*xp + = *YP;
*xp + = *YP;
}
void Twiddle2 (int *xp, int *yp)
{
*XP = 2 * (*YP);
}
It looks like Twiddle1 and Twiddle2 are doing the same thing, and Twiddle2 should be Twiddle1 's optimized version, because twiddle2 only needs to access XP and YP once, and Twiddle1 us
Full document Download: http://download.csdn.net/source/410669
In fact, tr069 and SNMP function Almost, is the remote device management, such as remote configuration Ah what ..., now people are very lazy, it is best to move around at home lip things are done, the method is to find a person to help him pass, such as small A to small B a computer but he will not pretend Ah, He did not want to go out and spend money to hire small c to help him ask, so small B to ask the matter wrote a letter to sm
Memory aliasing (memory alias used)
The compiler must assume that different pointers may point to the same location in the storage. This creates a major impediment to optimization.
For example:
void Twiddle1 (int *xp, int *yp)
{
*xp + = *YP;
*xp + = *YP;
}
void Twiddle2 (int *xp, int *yp)
{
*XP = 2 * (*YP);
}
It looks like Twiddle1 is implementing the same functionality as Twiddle2, and Twiddle2 should be Twiddle1 's optimized version because twiddle2 only needs to access one XP and one YP at a
specific access technology. How to ensure the availability of the management channel and the bandwidth of the management channel are the problems that need to be solved by the relevant Access Technologies. Management Protocols refer to management content transfer protocols on the IP layer. Currently, they mainly include SNMP and DSL forum TR-069 developed by IETF. The choice of management protocols mainly needs to weigh the security and protocol complexity.4. the development trend of home netwo
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