Resources for Computer Techs

Being a computer tech is a difficult job. The resources here can help to make that job easier.

Networking How do I change a MAC address? What is 127.0.0.1? What port number is XXX on? What is the OSI model? What is a null route? What is SCADA? What is RADIUS? What is DNS? What is ICMP? What is CSMA/CD? What is MTU? What is LDAP (Lightweight Directory Access Protocol)? What is DSL? What is the difference between a packet and a frame? What is plenum cable? What is multi-mode-fiber? What is single-mode-fiber? What is web conferencing? Network Security What is a firewall? What is an Intrusion Detection System (IDS)? What is a packet sniffer? What is a port scanner? What is a VPN (Virtual Private Network)? What is a IPsec? What is a ISAKMP? What is a IKE? What is TLS (Transport Layer Security)? What is a TCP sequence prediction attack? What is packet fragmentation? What is a Denial of Service (DoS) attack? What is two factor authentication? What is AAA? What is role based access control? What security issues does LDAP have? Wireless Networks What are the types of wireless networks? What is CDPD (Cellular Digital Packet Data)? What is HSCSD (High Speed Circuit Switched Data)? What is PDC-P (Packet Data Cellular)? What is GPRS (General Packet Radio Service)? What is EDGE (Enhanced Data rate for GSM Evolution)? What is CDMA-2000 1xRTT? What is Bluetooth? What is IrDA? What is LMDS (Local Multipoint Distribution Service)? What is MMDS (Multichannel Multipoint Distribution Service)? What is Wi-Fi (802.11)? What is a SSID? What is WEP (Wired Equivalent Privacy)? What are EAP, LEAP, PEAP and EAP-TLS and EAP-TTLS? What is WPA (Wi-Fi Protected Access)? What is 802.11i? What is MIC (Message Integrity Check)? What is RSN (Robust Secure Network)? What is TKIP (Temporal Key Integrity Protocol)? What is WRAP (Wireless Robust Authenticated Protocol)? What is CCMP? What is 802.1X? What is MAC Address Filtering? What is a rogue wireless access point? What are some better wireless antenna? Where can I find a Wi-Fi hotspot? What are some interesting Wi-Fi (802.11) tools? What is SMS (Short Message Service)? What is WAP (Wireless Application Protocol)? What is a wireless modem? What is a wireless router? VoIP What is VoIP? How can I get free VoIP? What is a VoIP codec? What is SIP? What is H.323? What is QoS? What is RTP? What is RSVP? What are some VoIP software packages? What is some common VoIP hardware? What are some books on VoIP? Telephony What are the frequencies of the telephone tones? What are the DTMF tone frequencies? What frequencies do cordless phones operate on? How do I install telephone wiring? What is Caller-ID? How do I block Caller-ID? How do I defeat Caller-ID blocking? What is a PBX? What is teleconferencing? What is a VMB (Voice Mail Box)? What are the ABCD tones for? What is the voltage used to ring a telephone? What are all of the * (LASS) codes? What is ANI (Automatic Number Identification)? What is an ANAC number? What is a ringback number? What is a loop? What is a CNA number? What are some numbers that always ring busy? What are some numbers that temporarily disconnect phone service? What is war dialing? Is war dialing illegal? How can I make a lineman's handset? Where can I purchase a lineman's handset? What are the Country Direct Numbers? What are some phone switches? What is a milliwatt test line? What are the 958 and 959 NXX's? What are CLLI codes? What is DATU? What is a Proctor Test Set? What is call back security? What is a Red Box? What is a Blue Box? Do Blue Boxes still work? What is a Black Box? What do all the colored boxes do? What is NEBS? What is TL1? What is ground start? What is loop start? What is a LATA? What is IntraLATA? What is InterLATA? What is an LEC? What is an IXC? What is a 66 block? What is a 110 block? Mobile Telephony How many types of mobile telephone systems are there? What are AMPS (EIA/TIA-553) and NAMPS (IS-91)? What is a MTSO (Mobile Telephone Switching Office)? What is a NAM (Number Assignment Module)? What is an ESN (Electronic Serial Number)? What is a MIN (Mobile Identification Number)? What is a SCM (Station Class Mark)? What is a SIDH? (System Identification for Home System) What are the forward and reverse channels? What are IS-54 and IS-136 (TDMA)? What is IS-95 (CDMA)? What is GSM? What is PCS? What is iDEN? What is cloning? What is tumbling? Radio What are the types of radio? Do I need a license to use one of these radios? What about modifying (modding) these radios? What are better radios for scanning? What is trunking? What is pirate radio? What frequencies are used for what purposes? What is CB (Citizens Band) Radio? What is FRS (Family Radio Service)? What is MURS (Multi Use Radio Service)? What is GMRS (General Mobile Radio Service)? What is a radio repeater? What is an Internet repeater? What is satellite radio? What is RFID? Television What kinds of satellite television networks are there? What is VideoCipher II RS (VCII RS)? What is DigiCipher II (DCII)? What is DVB? What kinds of DirecTV access cards are there? What do DirecTV and Dish Network do to stop signal theft? What software is there to experiment with access cards? What are the different types of access card hardware? Where can I purchase hardware to experiment with access cards? What is this extension DirecTV is telling me to call? What is NTSC? What is ATSC? What is HDTV? What is MPEG-2? What is aspect ratio? What is CSS (Content Scrambling System)? What is RPC (Regional Playback Control)? What is RCE (Regional Coding Enhancement)? What is Macrovision? What can I do with a TiVo? Cryptology What are cryptology, cryptography, and cryptanalysis? What are plaintext and ciphertext? What are symmetric and asymmetric ciphers? What are block and stream ciphers? What are substitution and transposition ciphers? What is a chosen plaintext attack? What is a known plaintext attack? What is a known ciphertext attack? What is a dictionary attack? What is a brute force attack? What is rubber hose cryptology? What is a message digest? What is MD5? What is a digital signature? What is PGP? What is GPG? How can I encrypt an entire disk? What are some common cryptographic algorithms? What is ROT-13? What is XOR encryption? What is a one-time pad? What is DES? What is RC4? What is RSA? What is Diffie-Hellman? What is AES (Rijndael)? What are some useful cryptographic libraries? What is Kerberos? What is steganography? What is a wordlist? Passwords How do I reset a BIOS password? How do I access the Windows NT/2000/XP password file? How do I audit Windows NT passwords? How can I recover a lost Windows NT Administrator Password? How does the Microsoft Windows 3.1 password encryption work? How do I recover the password for a Cisco router? How do I recover Cisco passwords? How does Hotmail password recovery work? How does Yahoo password recovery work? How does AIM password recovery work? How does ICQ password recovery work? How does Internet Explorer password recovery work? How does Netscape Navigator password recovery work? How can I recover a Zip password? How does RAR password recovery work? How does ARJ password recovery work? How does Microsoft Word password recovery work? How does Microsoft Excel password recovery work? How does Microsoft PowerPoint password recovery work? How does PDF password recovery work? How do I reset a mySQL password? What are some default accounts? Magnetic and Smart Cards What is a Smart Card? What are some common Smart Cards? What is the layout of data on magnetic stripe cards? How do I determine if I have a valid credit card number? Privacy What is anonymous surfing? What is an anonymous remailer? What are cookies? What are some free e-mail services with encryption? How do I send fake mail? How do I fake posts and control messages to Usenet? What is a key logger? How can I securely erase data? What is TEMPEST? How do I modify the IRC client to hide my real username? What is SSH (Secure Shell)? Malware What is a computer virus? What is a computer worm? What is a trojan horse? What is a logic bomb? How can I protect myself from viruses? Where can I get more information about viruses? How do I remove spyware? What is spam? How can I improve my Outlook spam filter? Software Vulnerabilities How can I find security vulnerabilities in my source code? What is an integer overflow? What is a race condition? What is a format string vulnerability? What is a random number vulnerability? What is an SQL Injection Attack / Vulnerability? Where can I find information about vulnerabilities? Unix How do I find a Unix command? What are some basic Unix commands? What is a Unix shell? What is a Unix script? How do Unix file permissions work? Where can I find a Unix tutorial? Where can I download Unix? Where can I get a Unix emulator? What is sudo? How do I audit Unix passwords? What is password shadowing? What is password aging? What is NIS (yp)? What is a restricted shell? What security problems exist with SUID script and programs? How do Unix system log files work? What is a rootkit? How do Unix timestamps work? What are some bootable Linux distributions? How do I change to directories with strange characters in them? What is a daemon? How do I change my shell? What is .profile? What is .login? What is a run level? How do I set an environment variable? What is UMASK? What are Unix signals? Databases What is a database? What is a relational database? What is SQL? What is a transactional database? What is a stored procedure? What is a database trigger? What is database replication? What is a data dictionary? What is database normalization? What is some free database software? What is ODBC? What is a DSN? Where can I get an ODBC driver manager? Where can I get an ODBC driver? Where can I get a MySQL ODBC driver? Where can I get an Oracle ODBC driver? What is JDBC? Storage What is RAID? What is mirroring? What is striping? What is SCSI? What is a hard disk partition? What is Fibre Channel? What is NAS (Network Attached Storage)? What is a SAN (Storage Area Network)? What is a HBA? How does hard drive recovery work? What is LUN masking? What is SAN zoning? What are hard and soft zoning? What is port zoning? What is WWN zoning? What is a World Wide Name (WWN)? What are the classes of attacks against SANs? What are some attacks against FCP? What is FCAP (Fibre Channel Authentication Protocol)? What is FCPAP (Fibre Channel Password Authentication Protocol)? What is SLAP (Switch Link Authentication Protocol)? What is FC-SP (Fibre Channel - Security Protocol)? What is ESP over Fibre Channel What is DH-CHAP How are iSCSI, iFCP and FCIP secured over IP networks? What industry standards are utilized in storage management? What standards does SMI-S rely on? What is WideSky? How is most storage managed today? What RFCs relate to storage management? What is FAIS (Fabric Application Interface Standard)? What is Information Lifecycle Management (ILM)? What is a Memory Stick? What is Compact Flash? What is a SD Card? What is a MultiMediaCard (MMC)? What is DLT? Satellite What is a geostationary satellite? What is Medium Earth Orbit? What is Low Earth Orbit? What is a polar orbit? What is Round Trip Time? What is an LNB? What is a BUC? What is IDU? What is ODU? What is an IFL? What is Fixed Satellite Service? What is Mobile Satellite Service? What is a spot beam? What is a broad beam? What is a polar orbit? What is a retrograde orbit? What is elevation? What is declination? What is azimuth? What is inclination? What is apogee? What is perigee? What is C band? What is Ku band? What is Ka band? What is L band? What is S band? What is a transponder? What is rainfade? What is QPSK? What is 8PSK? What is FEC (Forward Error Correction)? What is BEC (Backward Error Correction)? What is Reed Solomon? What is Free To Air satellite? What is a weather satellite? What is GPS? Miscellaneous How can I pick locks? How do I open a Simplex lock? What is peer-to-peer (P2P) file sharing? How do bar codes work? What's inside my PDA (Personal Digital Assistant)? Can I hack my Palm Pilot? Can I hack my XBOX? What are the ethics of hacking? What is 0-day? How do traffic lights work? What are biometrics? What is social engineering? What is shoulder surfing? What are the computer crime laws? What is MTBF? What is MTTR? What is Digital Asset Management? How do I post to a moderated newsgroup? How do I post to Usenet via e-mail? What is a hex editor? What are debuggers and disassemblers? Is there a decompiler to convert an executable into C/C++ code? What is this system? Other Great Sites Computer Technical Tutorials Latest technology updates, software tips and hardware reviews - add your Internet related link to Seniority for FREE VOTE FOR US! 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