Aug 30
ecsem3Battery technology, Digital camera review, laptop, laptop battery, notebook review Hp pavilion dv2000 battery
The PC World explains what ports and port scanner such as Nmap, as you discover vulnerabilities including Nmap and protect themselves against attackers.
Each PC requires open ports for Internet, Mail and Messenger. For ports, the input and output ports of your computer and Hp pavilion zv5000 battery, any Internet-related applications are an open port required. But open ports are potential gateways for attackers. Moreover, important for the in-depth understanding of firewalls knowledge of ports.
The lion’s share of Internet communication is done via the TCP and UDP protocols, so for example, the Internet traffic that is going on in your browser or mail program. Any application that is connected to the Internet in connection point to the TCP and UDP port number. So “” knows every data packet, to which application it belongs, so to speak, the port is the address for a particular type of Internet data. A HTTP packet for the browser ends up not in the mail program and a package of mail found its way into your mail client and not end up in the browser, thanks to each packet reaches its correct destination port numbers.
Sockets are the addresses of PCs and servers
Completing the address of a data packet with the IP address of the target Rechnerns. The combination of IP address of the target host and port number of the target application on the target machine is called a socket. Two sockets define a connection, one for the output and one for the target computer and Hp pavilion dv2000 battery. Thanks to the socket of each data Pact lands on the correct computer in the correct application. Conversely, there are of course on the server that makes the data available, the sockets, that is: There, too, have the appropriate ports open. Which brings us back to the subject would be.
Responsible for incoming mail POP3 server is working for example on port 110, a web server listening on port 80 (if you run even a web server on your computer, you have this when commissioning a port. Default is 80, is there an other its port (because you run two web servers simultaneously, for example), you must explicitly specify the way such as Apache’s configuration file).
Each data packet therefore knows which port it is addressed. For this he is in fact added to the header of the data segment the sender and the destination port number. This applies to both the TCP and UDP for the protocol.
Server processes are always static port numbers, client requests get assigned to every request against a dynamic port number. A unique socket for a request to a web server (as are the open source Apache or Internet Information Services IIS from Microsoft) with the IP address 192.168.1.18 might look as follows: 192.168.1.18:80. And if the requesting client computer’s IP address 192.168.100.12 has, then the socket for the supplied site would look like this: 192.168.100.12:49152 – whereby the latter would be the dynamically allocated port for the answer.
Hp pavilion dv9000 battery Hp pavilion dv8000 battery ibm thinkpad x60 battery
Aug 27
ecsem3Battery News, business news, laptop, laptop battery Sony vgp-bps9/b battery
Route, nslookup: DNS routing tables and conversion
Route change : Routing tables and print
Routing refers to the forwarding of data packets from a network (LAN , Internet) to another. The router has this so-called routing tables.
Route Print
With route and the appropriate options or commands, change the routing table of your computer and Sony vgp-bps9/b battery. For example you can set a new gateway : route change. Or print out the existing route : route print, the result is also the result of the command netstat -r. add together with a number of options you add a new route. With route / s , show all options.
These routing tables are typically created dynamically , either through the OSPF or RIP protocol. Routers on the way, additional commands to route management, for example, show ip route.
Nslookup
With the help of the DNS protocol (Domain Name System ) can be connected easily to man -to-remember host name with an IP address. With nslookup , you can manually send a request to a name server to resolve a host name. You can also find your name servers with nslookup and identify problems with name resolution.
Nslookup provides all the information to the DNS server of your computer and Sony vgp-bps9/s battery. Enter a host name when you start nslookup , for example www.pcwelt.de . Nslookup it resolves to an IP address.
Hostname , FTP , Telnet
Hostname:Get the hostname of your PC.
FTP : File upload and download via File Transfer Protocol
Usually you do FTP transfers with a suitable FTP client, such as Filezilla or a file manager with integrated FTP function as Total Commander. FTP uploads you make such as when you update your website , FTP downloads occur when the latest version of Firefox will pull down from the FTP server from Mozilla.org before it is officially known . But for just in case the FTP command family is also on the command line. By entering FTP ( which stands for File Transfer Protocol) you start an FTP session to Quit to exit this again. Read the help information before you start an FTP session.
By the way: Just like the classic FTP is also the command Telnet available. With it you can connect from a Telnet client with a Telnet server. Please note for both commands , however, that the Data is not encrypted and therefore passwords and login data will be transmitted in plain text.
More information in:vgp-bps8 battery inspiron 6400 battery Dell inspiron 1501 battery
Aug 23
ecsem3Battery technology, laptop, laptop battery, notebook review, tips apple a1175
Online programs are not run unnecessarily
Myth 4 An active firewall log must constantly attacks
Many firewalls report by pop -up when they discard packets that arrive without having been previously requested by a program. The pop – ups appear as a warning , sometimes even tone.But these warnings are almost always superfluous : In most cases , the reported packages only the answers to questions which have one of your tools – generated about the browser – which , however, are unaware of the firewall .
Anyone who dials also new to an online connection , you get an IP address that was eventually awarded recently to a different PC,Dell inspiron 2650 battery and sent to the remaining packages.
Also: Hackers scan the Internet for vulnerable computers running automated . Check per ping, which allow incoming connections computer by scanning all the IP address ranges. Just go to some worms. Even such scans loose in a mitteilungsfreudigen a firewall warning .
Consequence: Turn off the news – usually the firewall offers this option.
Myth 5 Closed ports enhance security
Basically mean fewer open ports less attack surface. But there is a method that can be closed ports deal : In the so -called tunnels sends the user via an open port dienstfremde data that are not intended for transmission via this port. In order to trick the network service of the port , the user data previously converted in the format .
One example: Almost always , the port 80 is open to the HTTP protocol. On such a HTTP tunnel can be exchanged and FTP data , although the FTP port 21 ( ) is closed. The FTP data were embedded it in an HTTP protocol. Especially popular for tunneling connections over HTTPS ( Hypertext Transfer Protocol Secure ) are . The integrated encryption prevents evaluate the firewall sent the data and can eventually block . Many file-sharing programs , which are used to music, movies and other files exchanged over the Internet tunnel , the data on port 80, as their default port is blocked in many companies.
However, must be configured for a tunnel , both sides of the connection. Is active on a PC no tunnel software, an attacker can not use from outside the gap.
Consequence: With the firewall to make the ports close makes sense in any case. More important is that you are not doing any online programs – such as an FTP server – you do not need. But the tools you need , you should always provide you with updates.
More information in:Dell inspiron 640m battery Dell inspiron 1720 battery apple a1175 Dell inspiron 9400 akku
Aug 11
ecsem3Battery News, Battery technology, Digital camera review, laptop, laptop battery Dell latitude d600 battery
Phones : Using secret codes
With the help of the star and the pound key and the number field you elicit from your phone specific info. The combination * # 06 # shows such as the International Mobile Equipment Identity (IMEI ) that 15-digit identification number of your phone – no matter which company it comes from . If your device is stolen and turns up again , you can see from the IMEI number as your property.
Samsung phones : You change with * # 0523 # the contrast of the display. Information about the storage space you get with * # 0377 # (for the T100 : * # 8999 * 636 #), the battery level with * # 9998 * 228 #.
Nokia phones : The key combination * 3370 # activates Enhanced Full Rate Codec ( EFR ), through which the device uses the best sound quality – but this feature is at the expense of Dell inspiron 710m battery life. To deactivate the EFR simply type # 3370 #.
Sony -Ericsson phones : And if you have accidentally entered wrong with your Sony Ericsson phone , the PIN , select the new command prompt ” No “and press ** 04 * 0000 * 0000 * 0000 #. To come after all, the menu of the mobile.
Motorola phones to make faster
Do you can have your Motorola mobile legs , then call you to perform certain functions faster and run . You will need the manufacturer program Flash & Backup and the English-language tool Moto Speed. Connect your phone via USB to the PC. Start the Flash & Backup 3 , and set the menu language of the software on German . Note the folder for backup “(probably “C : \ \ Program Files \ Motorola Tools \ Flash & Backup 3 \ Backup \<Backup date>”). Go to ” Data Read “, and set before ” CG15 (DRM graphics ) ” is checked. Select the backup format ” SMG (Binary Data) “, and start the backup with ” read data “. Close the program when the operation is completed.
Now start Moto Speed, and change the language to English . Click on ” File, Open “, and select the saved file by double -clicking DRM . You will now see a list with many special characters. Now put one by each value by 25 to 50 per cent down – about “1500 “to” 750 ” . Save the changes by clicking the ” Save changes file in DRM from . Now you have to play the file back to your phone. Open to Flash & Backup 3 , then the option ” Add Data “. Click the “Select backup file “. The tool shows you the backup file automatically. Select it and press ” OK “. With “Write Data “to start the flash process . After you turn the phone the shortened working hours are effective,when your inspiron 8200 battery is full .
CD / DVD burner unlock : quality control in Linux
Almost all CD and DVD burners are now equipped with techniques that will ensure optimum burning results – such as the optimum firing rate of a blank. With a Windows machine it is ok to perform these functions. But not all of the techniques can also be used on Linux. With Qpxtool You can unlock various quality tests. The English-language open- source program examines media described for correctable and uncorrectable errors, and the quality of the writing process and terms Jitter Beta. Also notes the tool , the maximum reading speed , or the transfer rate and compares the data on CD / DVD with the required specifications . To use the tool , start the qpxtool.exe file from the disk. Insert a recorded CD / DVD in your drive ( all supported drives , see Compatibility List). Choose “Device” your drive. Click on “Device , Update media info “so qpxtool the loaded CD / DVD recognize. Put on the tab “Media” checkbox for the required audits, and select the reading speed (scan speed off). “Run Test “to start the scan . After you run the software shows the test results graphically.
More information in:Dell inspiron 8600 battery inspiron mini 9 battery Dell latitude d600 battery
Jul 20
ecsem3Battery News, Battery technology, laptop, laptop battery thinkpad x60 series battery
MSI Wind U160 Netbook presents
MSI is developing itself a proud history of netbook computers, but whilst the Taiwanese manufacturer’s original 2008 foray – the Wind U100 – took the concept of cheap and cheerful all too literally, its 2010 successors hope to introduce an added sense of sophistication,its battery specification is similar to thinkpad x60 series battery.
Take for example the MSI Wind U160, a modern netbook that aesthetically, at least, doesn’t reflect a relatively paltry £330 asking price.
First unveiled at January’s Consumer Electronics Show, the system abandons the Wind’s traditional clamshell design in favour of something more sleek and refined.
Measuring under 20mm at its thickest point, it’s MSI’s thinnest-ever netbook and our review sample – equipped with a useful six-cell battery – weighs just 1.2kg, making it small, ultra-thin, ultra-light and suitably portable in every sense.
At this year’s CeBIT is a netbook from MSI , which is particularly conspicuous by their long battery life.
The 6 -cell battery of the MSI Wind U160 netbook to offer up to 15 hours battery life it is same to the sony vgp-bps2c. The device MSI at CeBIT 2010 C38 in Hall 17 , Stand . The Wind U160 will go on sale in March and will cost € 349 and be available in black and gold . With a height of 25 mm, the Wind U160 is currently the thinnest netbook with an Atom N450 CPU. The 10- inch display is said to have a response time of 8 ms .
By Eco -mode users select the various modes , including ” Normal “and “Turbo Battery ” for a long useful life. Even the mechanical switch to Wi-Fi when not in use the wireless function to help save power. MSI also promises easy access to main memory to replace the RAM module. Furthermore , the Netbook with 1.3 – megapixel webcam , Bluetooth , card reader and three USB 2.0 ports equipped . Using Windows 7 starters used.
There is no slot for UMTS cards only in an additional version of the U160 .
More information in:Sony vgp-bps9 battery Sony vgp-bps9a battery Sony vgp-bps9/b battery
Jun 25
ecsem3Battery technology, laptop, laptop battery inspiron 1501 battery
Netbooks come with multi- touch display , notebook with ten hours of running time , but the mobile host at CeBIT 2010 are not only faster and more economical, but also beautiful.
Most new laptops at CeBIT in 2010 working with a new mobile CPU from Intel: Processors are i3 Core , Core i5 and Core i7 notebooks not only speed up significantly , but grant them a longer inspiron 1501 battery life.
Multitouch is another trend: Some manufacturers equip their devices with a touch-sensitive display off, on the mobile computer can be controlled with a finger. The Tablet PC Fujitsu Lifebook T900 , for example, a 13.3- inch touch screen. The Mini 5102 Netbook will also be available with either multi – touch display.
The first notebooks with the new USB 3.0 interface , you can see on the CeBIT 2010th To upgrade older notebooks to the USB Sharkoon delivers 3.0 Express Card with two USB 3.0 ports , which are backward compatible with USB 2.0.
However, not only the intrinsic values include : The CeBIT 2010 mobile PCs offer much for the eye again . The Asus NX90 for example, is worth seeing a luxury notebook , the B & O developed chief designer David Lewis : It should , of course, guarantee , above all music and movie playback in highest quality. The Asus U Series notebooks come in a bamboo look and will provide a natural, minimalist aesthetic. With the new Eee PC Seashell Karim Rashid collection has a design Asus Netbook in the program, which has designed the designer Karim Rashid. The case with wave pattern is available in pink , coffee brown .
Some manufacturers also see schools as a new market,such as Compaq laptop Battery. With the Mini 2102 , HP offers a specially designed netbook for schools and education at an affordable price.
More information:inspiron 6400 battery Vostro 1500 battery Dell vostro 1510 battery
Jun 24
ecsem3Battery technology, laptop, laptop battery, tips Dell vostro 1500 battery
Slow processor
One of the components except the display -hungry processor – especially if he is running under full load. This helps the freeware Notebook Hardware Control (NHC ), which you charge Download.
Notebook Hardware Controlist very easy to use . It allows a processor to herunterzutakten own, if it is not in use. This house offers from different NHC profiles – such as the mains or battery power. Besides the processor controls NHC also power management of video cards and hard disks , so your notebook up to 50 percent longer run .
BIOS update
The BIOS is responsible, among other things, to detect the RAM bar or the drives, just as it controls power management. For this reason, it pays to keep the BIOS up-to -date. With notebooks , you can find BIOS updates at the homepage of the respective manufacturer . There is usually a link support, where you can search for your exact device name . So only the best updates are displayed.
Caution: A BIOS update is always associated with a risk. So please read the manufacturer’s instructions carefully and make sure that the notebook is unplugged. Turn the laptop on update under any circumstances, .
Update Driver
Just as important as BIOS updates are current device drivers. These increase the efficiency of Dell inspiron 6400 battery , maximizing the ideal case , both the performance and power consumption. Moreover, the stability is improved ( especially in Vista) and extends the feature set . Drivers can be found mostly on the sides of the notebook manufacturer , but there rarely are ready the latest versions. Go directly to the better producers of individual components.
To find out the exact name of components, there is the Freeware SIW. Below the main driver candidates at a glance with a short description of the update utility : * Chipset: This driver is responsible for accessing memory and drives , and can therefore raise the performance of the system significantly. Which manufacturer to you is blocked , you will see in SIW under Hardware / Motherboard / North Bridge,Dell vostro 1500 battery and so on .
In the case of Intel, the search is the easiest , as all drivers will be offered as a package. Go to www.intel . com / support / en and search for chipsets. The results should then be visible to the entry “Software Installation Utility for Intel chipsets . This you should install .
At AMD, Nvidia and SiS have the drivers themselves are culled . * Graphics : The graphics card or graphics chip is listed in SIW under Hardware / Devices / card. The most common manufacturers are S3 AMD / ATI, nVidia, Intel or for older devices . Thanks to optimizations for new computer games of the performance gain is often double-digit percentage range.
* WLAN: Wi-Fi devices may require updated drivers benefit greatly . Thus, not only increases the stability and speed of wireless connections , the support of the new WPA and WPA2 encryption is often via driver update. SIW in the details of the wireless chip as the hardware / devices / network adapters are found.
* Bluetooth: To make the Bluetooth component found, look in SIW under Hardware / Devices / Bluetooth devices. Here too an update stability.
Sound: With sound chips worth an update as well. This will give you compared to Windows standard drivers are more configuration options. In SIW you find the sound chip under Hardware/Devices/Audio- , video and game controllers. For Dell vostro 1510 battery of laptops , the chips are often made by Realtek and Analog SoundMax .
* mouse: The built- in laptop touch pads or track points are made in most cases of Synaptics www.synaptics.com . Whether this is also the case for you , you will see in SIW under Hardware / Devices / Mice and other pointing devices. The update brings here mainly for enhanced functionality and improved sensitivity.
* Card reader driver updates for readers include the encouragement of larger memory cards. In these devices under SIW Hardware/Devices/PCMCIA- and flash memory devices are listed.
More information in:Dell inspiron 1520 battery Dell xps m1730 battery
Jun 22
ecsem3Battery technology, laptop battery, notebook review, tips Dell inspiron 6400 battery
This lets you know a business notebook
Before looking specifically the Dell inspiron 6400 battery life of notebooks, we want to respond to the special properties that have a business laptop (shouldReading Tip: This topic deals extensively with the article ” The Best Business Laptops”).
Notebooks are often used in the business with sensitive data on board when traveling. Therefore, you should look for in a professional laptop on a robust finish . Of fragile areas such as display hinges or lid should be made of sturdy and durable material such as metal in the hinges and magnesium alloy or carbon – in cover.
Most of the notebook also serves as Dell vostro 1500 battery replacement : Then it should give it a proper docking station. On the desk close to the docking station to an external monitor , mouse and keyboard, and peripherals like a printer. In sub-notebooks can be found in the docking station usually a shaft for an optical drive. For use on the way you lift the notebook simply transform from docking solution and it is handy in a mobile computer.
A key differentiator between business notebooks and mobile computers for home users is usually the built-in graphics solution : Business models usually have an integrated graphics chipset , while notebooks for home users are often equipped with a video card . However, a separate video card in 2D mode and swallows a lot of electricity , which is at the expense of Dell vostro 1510 battery life.
The notebook display is little more contrast to distinguish : Early notebooks at all for home users often have a reflecting widescreen display. For business notebook dominated for a long time against a matte display in 4:3 format. But the widescreen format is also used for business notebooks on the rise : for it offers , for example, when editing of Excel spreadsheets more space and can be due to the lower altitude in an airplane most easily expand .
Search Tip : If you have a notebook for the road , where you often work under very different lighting conditions, a mobile computer is recommended with matte display.
Data protection plays a business unit a special role, often secret slumber finally sensitive financial data and project plans on the notebook . So an access protection is recommended for example in the form of an integrated fingerprint reader or a slot for a smart card. Also have numerous professional mobile host a Trusted Platform Module (TPM ): In combination with security software or example, the BitLocker of Windows Vista Business , you can encrypt your data – the laptop is stolen, the thief can then do anything with it .
To protect the hard drive integrated business notebook , for example from HP , Lenovo and Toshiba, a motion sensor notes: He, when the notebook is moved violently or fall – the Schreib-/Leise-Köpfe then drive to a safe position so that they do not have the magnetic discs grind and ruin the disk.
More information:Dell inspiron 1520 battery xps m1730 battery
Jun 14
ecsem3Battery News, laptop, laptop battery Dell inspiron 1501 akku
Batterien können alles von kleinen Sensoren für große Systeme. Während Wissenschaftler finden sich Möglichkeiten, sie zu kleineren, aber noch mächtiger, können prpoblems entstehen, wenn diese Dell inspiron 1501 akku viel größer und schwerer sind als die Geräte selbst. University of Missouri-Forscher entwickeln eine nukleare Energiequelle, die kleiner, leichter und effizienter.
“Um genug Leistung, die wir bestimmte Methoden mit hoher Energiedichte benötigen”, sagte Kwon Jae, Assistenzprofessor für Elektrotechnik und Informatik an MU. “Die Batterie kann Radioisotop Leistungsdichte, dass sechs Größenordnungen höher als die chemische apple a1175.”
Kwon und sein Forschungsteam haben auf den Aufbau eines kleinen nuklearen Akku gearbeitet, Dell inspiron 1300 akku , die derzeit von der Größe und Dicke eines Penny, für den Antrieb von verschiedenen Mikro / nanoelektromechanischen Systeme (M / NEMS). Obwohl nuklearen Batterien Bedenken aufwerfen können, sagte Kwon sie sicher sind.
“Die Leute hören das Wort” nuklear “und von etwas sehr gefährlich zu denken,” sagte er. “Allerdings nuklearer Energiequellen sind bereits sicher Versorgung einer Vielzahl von Geräten wie Herzschrittmachern, Weltraumsatelliten und Unterwasser-Systeme.”
Seine Innovation ist nicht nur in der compaq presario v2000 akku’s Größe, sondern auch in seiner Halbleiter. Kwon-Batterie nutzt ein flüssiges Halbleiter anstelle eines festen Halbleiters.
“Der kritische Teil der mit einer radioaktiven Batterie ist, dass, wenn Sie die Energie, die Teil der Strahlungsenergie Ernte kann die Gitterstruktur des festen Halbleiter-Schäden”, sagte Kwon. “Durch den Einsatz eines flüssigen Halbleiter, glauben wir, wir können dieses Problem minimieren.”
Kwon hat mit J. David Robertson, Chemie-Professor und Associate Director des MU Forschungsreaktor, zusammengearbeitet und ist bestrebt, bauen und testen Sie die Batterie an der Anlage. In der Zukunft hoffen sie, die Akku-Leistung zu erhöhen, schrumpft die Größe und versuchen mit verschiedenen anderen Materialien, compaq presario m2000 akku . Kwon sagte, dass die Batterie könnte dünner sein als die Dicke des menschlichen Haares. Sie haben auch für eine vorläufige Patent angemeldet.
Jun 02
ecsem3Battery News, Battery technology, laptop, laptop battery inspiron 6400 battery
Undervolting and other energy-saving tricks
There are several possibilities, the power consumption of Dell xps m1330 battery with the help of software to analyze and reduce. The search for low-power facilities is probably as old as the history of the laptop itself, the company Intel has developed several years ago, the software Powertop. This software examines how long the processor is in what condition and with what frequency it works here. The program also indicates those programs that take the most processing power to complete. It also shows ways in which the power consumption of the system can be reduced.
Another possibility is the so-called undervolting, where the electricity consuming components CPU and graphics card with a lower supply voltage to operate. But this is only up to a certain point possible, because the component at some point simply too little tension and get freezes, crashes or mathematical errors produced. Therefore, it scans usually with many reboots of the system slowly approaches the last possible voltage at which the device is still running perfectly. The operation is flawless, as a rule with a program like Prime95 examined.
The effect of a clean undervolting is well worth seeing, since a significant increase in inspiron 6400 battery life without compromising performance of the unit can be recorded. At the same time also decreases the operating noise of the notebook, as less voltage means less heat dissipation and jump to the fan so rare and generally run slower can. This saves the way again some modicum of power.
Undervolting – mainly exported Unvervolting wrong – but always carries the risk of damage to the components themselves, which you should always be aware! If you damage with exaggerated settings components, good is your warranty in any doubt at all. With careful and cautious undervolting risk damaging other hand, is quite low. And it can always be reversed, the change is not permanent.
Much tact
The clock speed of processors you can use software such as SpeedSwitchXP Change for undervolting & Co. to recommend programs like RMClock and CrystalCPUID. Other video drivers – such as the alternative Omega drivers for Nvidia and ATI graphics cards – offers similar features, but just for video cards.
remember to take all power saving options and optimizations is that even the seemingly innocuous plugging of powered USB components (such as hard drives, printers, mice, …) as a function of that specific component with a power consumption and thus sony vgp-bps2a battery life decrease is connected.
Green-Tech
Meanwhile, the notebook manufacturers also deal in light of the associated with consumption of CO2 Disskusion walking with integrated power management solutions to improve energy efficiency. Would like for example Dell the average power consumption of its notebooks in 2010 to 25 percent lower. The manufacturer relies on the in-house solution Energy Smart power management, more efficient designs, fans and power management functions. Own statements to follow the manufacturer has increased the energy efficiency of Dell xps m1210 battery since 2006 by almost 16 percent. Dell also has an ambitious goal: The company wants to be the greenest technology company in the world and make its operations carbon neutral by the end of 2008 completely.
View more in:dell u4873 battery
Older Entries
RSS
