What is the Visio TV code for my RMT-B126A remote?

Your website has no available codes for either the RMT-B126A remote or the BDP-S3200 Blu ray player it came with. I want to be able to control the TV volume like I could with my Samsung TV.
Thanks

Hi kwg06516,
This remote(RMT-B126A) doesn't have programmable codes because its not a universal remote. It is exclusive for your player(BDP-S3200) only. It may control other devices such as TVs but with the same brand only.
Thanks,
>Joffrey
If my post answers your question, please mark it as "Accept as Solution"

Similar Messages

What are the different transaction codes for PGI?

1. What are the different transaction codes for PGI?
2. What transaction code should I use for a Group Delivery?
Regards,
Nazim.

Hi
Go to VL02 and you can do the PGI.
Regfarding Group Delivery, you can create a batch job and link the program to the batch job so that the job picks up all the orders and create deliveries.
Creating a Background Job Using the Job Wizard
From the main menu select System>Services>Jobs>Define Job (transaction SM36).
Press the Job Wizard button and step through the screens as follows:
1:Continue
2: Enter a name for your job. Continue.
3: Continue with ABAP Program Step selected
4: Enter the ABAP Program Name and variant name.
Press the Print Parameters button, specify the required printer and set the "Time of Print" to "Send to Print Spooler for now".
Press green tick
Continue
5: If more reports need to be added to the job tick the checkbox, press continue and repeat screens 3 and 4.
6: Select how the job is to scheduled (eg Date and Time)
7: Enter the required scheduling information ( eg Date and Time) and if required tick "Periodic Jobs"
8: If "Periodic Job" was selected select the frequency (eg Monthly)
9: Check the job details and press Complete
Hope the above info helps.
Reward if useful
Regards

What is the network unlock code for my HTC Thunderbolt?

I want to unlock my husband and I's HTC Thunderbolts. Our contract is up and we bought our phones out right before we signed a contract. What is the network unlock code for the HTC Thunderbolt phones?

Thanks. Apparently Verizon isn't really "sorry to see the customer go". I'll simply buy an unlocked phone and be done with Verizon for good. Two years is to long to be treated like this by them. I bought my phone and should be able to use it with whatever carrier I want. It is no longer Verizon's phone. Yes I understand they own some of the stuff they put on my phone but by all means they can remove it. I didn't want their crap on their in the first place. I wish the rest of America would quick kissing their rear. End Rant
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What are the compiler generated codes for objective-c?

After the compilation, the code for c/c++ is known as "object code" i.e. ".obj" file, and the binary executable file is ".exe" .
Similarly for java the compiled code is known as ".class" file.
In case of Objective-c what is the output of Compiler and what is the Executable file?

Strictly speaking, .obj and .exe refer only to the output of the compiler and linker for a Windows system (or cross compiler). For *nix compliant systems the output of the compiler is usually given a .o suffix and the executable produced after linking is named whatever you choose; but usually with no suffix at all.
Also, technically speaking, Java .class fiels don't fit neatly into this paradigm. The output of a Java compiler isn't object code, per se; it's optimized byte-code that can be run by the JRE.

What is the proper HTML code for I linking to a destination in a .pdf file in firefox?

If I create an HTML link to a destination within a .PDF file, it works fine in IE but not in Firefox. The code I use is this:
<a href="website/pdf-file.pdf#destination-name>

Cool. Thanks to you both.
I vaguely recall doing a "chmod 700" on my previous machine. Those strict permissions survived the migration to this one it seems. "chmod 755" will be fine now. I wanted to know what the default was. Now I do Thank you!
Here is a quote from the Wikipedia entry on Filesystem_permissions:
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What is the default sim code for AT&T on Ipad2?

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Try 0000
I never set either passcode but Restrictions required one to get in so I tried a typical passcode that I might have used. It didn't work so I tried 0000 and it worked.

What are the cause and fix for the following error message? NS_ERROR_FILE_ACCESS_DENIED failure code: 0x80520015

Every time I close my Firefox browser I receive the following error message (see details below).
FYI:
-- I am running the current version of Firefox.
-- I had no problems with this error message until my computer was recently attacked by 2 viruses:
` SystemFix
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Both viruses have since been cleaned from my computer. However, I am still receiving this error message.
Here are my questions:
* What are the cause and fix for this problem?
* Do I need to uninstall and reinstall Firefox?
* Is it possible that this error message is related to an add-on and that it has nothing to do with the recent virus attacks?
I look forward to any feedback and support you might be able to provide.
Thanks,
Metta
Error Message
NS_ERROR_FILE_ACCESS_DENIED
Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)
[nsIFileOutputStream.init]
File: undefined
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Stack: undefined

Every time I close my Firefox browser I receive the following error message (see details below).
FYI:
-- I am running the current version of Firefox.
-- I had no problems with this error message until my computer was recently attacked by 2 viruses:
` SystemFix
` Win7 Antivirus 2012
Both viruses have since been cleaned from my computer. However, I am still receiving this error message.
Here are my questions:
* What are the cause and fix for this problem?
* Do I need to uninstall and reinstall Firefox?
* Is it possible that this error message is related to an add-on and that it has nothing to do with the recent virus attacks?
I look forward to any feedback and support you might be able to provide.
Thanks,
Metta
Error Message
NS_ERROR_FILE_ACCESS_DENIED
Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)
[nsIFileOutputStream.init]
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What is the standard transaction code to see price for a material

can anyone tell me what is the stadard t code to display price of a material for different customers the input contains sales organization distribution channel material valid on and end date
Urgent
thanks

Use condition maintenance function (VK31) to meet your needs.
Go to VK33 to display pricing reports, choose conditions > by customer, narrow down results by specifying org units, validity periods, customer and material range, condition type etc.
Or at SE43, display area menu cond_av, where you can find out what pricing reports constitute this menu i.e your condition maintenance screen. If it is a routine task, creating an area menu may be needed.
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What is the new sap note for Ptax slabs of FY 2011-12.

Dear Experts,
we are currently using ECC 6.0, release 604, patch level 0035 and support package SAPKE60435. professional tax slabs not updated in table V_T7INP4.
what is the new sap note for Ptax slabs of FY 2011-12.

Hi,
The Profession Tax tables T7INP3 & T7INP4 are customizing tables in which the entries are to be modified. SAP provides the initial entries and, if there is any change in slab rates, then you would need to update these slabs manually.
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Regards,
Nishtha

What are the main transaction codes in XI?

What are the main transaction codes in XI?

SAP XI TRANSACTION CODES
ALRTCATDEF- Alerts Configuration.
ALRTDISP - Display of Alerts Created
SXMB_IFR -> Start Integration Builder
SXMB_MONI -> Integration Engine - Monitoring
SXI_MONITOR -> XI: Message Monitoring
SXI_CACHE -> To Access IS runtime cache
SXI_SUPPORT -> Test all the Repository and Directory Objects
SXI_CACHE -> XI data directory cacheidx1 -> idoc adapter
IDX2 -> idoc metadata
IDX5 -> monitor idoc adapter
SM21 -> log di sistema
ST22 -> dump abap (analisi di eccezioni)
SMQ1 -> messages inbound e outbound queue
SMQ2 -> messages inbound e outbound queue
SMICM -> J2EE administration
ST06 -> stato della macchina cpu memory filesystem machine status - cpu, memory and file system.
ST03 -> workload.
SCC4 -> visualizza mandanti del sistema
WE20 -> partner profiles
sale - ale settings
RZ10 - edit system profile
SM59 ->mantain rfc destinations
BD64 -> mantain distribution model (trasformazioni)
SU01 -> users
AL08 -> list all logged users(user login logon)
SE10 -> Change Request
SE09 -> Change Request
WE05 -> All idocs
WE19 -> IDoc Test Tool
WE21 -> port definition
SE11 -> Data dictionary
SM21 -> log sistema xi
se37 -> mantain funcion modules
SICF -> http server configuration
SMGW -> trace, alzare livello di trace.
BD13 ->
BD64 -> modelli di distribuzione
PFCG -> Roles
tabella TSTC -> sap transactions codes
tabella TSTCT -> transaction descriptions
STMS -> transports management
SPAM -> apply ABAP support packages
SPAU -> manage objects after apply support packages
SE01 -> manage change requests
SLDCHECK -> Test SLD Connection
SLDAPICUST-> SLD API Customizing
SXMB_ADM -> Integration Engine - Administration
SXMB_MONI_BPE -> Process Engine - Monitoring
SE38 -> ABAP Editor
SE11 -> ABAP Dictionary
ST22 -> ABAP dump analysis
SPROXY-> ABAP Proxy Generation
SE80 -> Object Navigator
ABAPDOCU -> ABAP Documentation and Examples
SE24-> Class Builder
SM21-> Online System Log Analysis
SMQ1-> qRFC Monitor (Outbound Queue)
SMQ2-> qRFC Monitor (Inbound Queue)
RZ70-> SLD Administration
SM58-> Asynchronous RFC Error Log
SM59-> RFC Destinations (Display/Maintain)
SMICM-> ICM Monitor
WE60-> Documentation for IDoc types
BD87-> Status Monitor for ALE Messages
IDX1-> Port Maintenance in IDoc Adapter
IDX2-> Meta Data Overview in IDoc Adapter
WE05-> IDoc Lists
WE02-> Display IDoc
WE19-> Test tool
WE09-> Search for IDocs by Content
WE20-> Partner Profiles
WE21-> Port definition in XI
SE16-> Data Browser
SE93-> Maintain Transaction Codes
SM30-> Call View Maintenance
SU01-> User Maintenance
SM02-> System Messages
BD54 -Logical System Creation.
SWXF_PBUILDER -> for Detail BPM Process
SMQS - > to register the destination in QOUT scheduler
WEOUTQUEUE - > to start the queue processing
SMQR - > to register the queue
IDXPW - > to activate the IDOC message package
IDXP - > to monitor the message packages.
SWF_XI_CUSTOMIZING -> transaction to check prerequisites for integration processes.
http://www.erpgenie.com/abaptips/content/view/452/62/

What are the importent transaction codes in edi

what are the importent transaction codes in edi

hi,
=>sale - ALE Customizing
=>bale - Distribution Administration (ALE)
=>wedi - IDOC Type and EDI Basis
=>shdb - BDC (Transaction Recorder)
=>lsmw - LSMW
=>bapi - BAPI
=>spau - Display Modified DE Objects
=>spdd - Display Modified DDIC Objects
=>sara - central idoc archiving
=>stms - Transport Management System
=>wedi - IDOC Type and EDI Basis (IDOC Configuration)
=>bd21 - Analyze change pointers - create IDOC from change pointer
=>bd10 - Send Material Master
=>bd12 - Send Customer Master
=>bd14 - Send Vendor Master
=>bd50 - Activate Change Pointer for Message Type
=>bd55 - Conversion rule user exit (Link conversion rule user exit to the different system \ partner combinations)
=>bd54 - Maintain Logical Systems
=>bd71 - Distribute Customer Model
=>bd87 - Process Inbound IDOCs
=>bd88 - Process Outbound IDOCs
=>bdm2 - Cross-system IDOC Reporting
=>bdm7 - ALE Audit - statistical analyses
=>bdm8 - ALE Audit - sending confirmations
=>bd61 - Activate Change Pointer generally
=>bmv0 - Direct Input Data Transfer Administration
=>rz04 - Operation Mode
=>rz12 - RFC Server Group Maintenance
=>sar3 - Archiving object customizing
=>s001 - SAPoffice Inbox
=>s010 - Standards Texts (SAP Script)
=>se01 - Transport Organizer (Extended View - Performing and managing the transport of development object across different systems)
=>se09 - Transport (Workbench) Organizer (Controlling and keeping track of Development work and Development Objects)
=>se78 - Administration of Form Graphics (Import Graphics into SAP System)
=>se84 - ABAP Repository Information (search for SAP objects)
=>su01 - User Maintenance (Security)
=>su02 - Maintain Authorization Profiles
=>su03 - Maintain Authorizations
=>sm36 - Background Job Scheduling
=>sm37 - Background Job Monitoring (display batch jobs)
=>sm31 - Table Maintenance
=>sm30 - Calling View Maintenance
=>sm35 - Batch Input Monitoring (Error Logs)
=>sm50 - Process Overview
=>sm58 - Transactional RFC Monitoring
=>sm59 - Maintain RFC Destinations (Define RFC Configuration)
=>snro - Number Range Objects (for IDOCs)
=>we02 - Display IDOC
=>we05 - IDOC lists
=>we07 - IDOC statistics
=>we12 - Inbound processing of outbound file - convert outbound to inbound file
=>we14 - Process (dispatch) IDOCs through Port - RSEOUT00
=>we15 - Outbound IDOC from NAST - message control
=>we16 - Inbound File
=>we18 - Generate status file
=>we19 - Test tool
=>we20 - Add new Message Type to Partner Profile
=>we21 - Maintain Port Definition
=>we30 - IDOC Type development
=>we31 - IDOC Segment development
=>we41 - Process Code Outbound
=>we42 - Process Code Inbound
=>we46 - IDoc Administration
=>we47 - Status Code Maintenance
=>we57 - Assign function module to logical message and IDoc type
=>we63 - IDOC Type for Parser Output
=>we82 - Assign IDOC to Message Type
=>we60 - IDOC Documentation - IDOC Types
=>we61 - IDOC Documentation - IDOC Record Types
=>we81 - Create new IDOC Message Types
=>we82 - Assign IDOC to Message Type
=>pa20 - Display HR Master Data
=>pa30 - Maintain HR Master Data
=>bd59 - Create and assign Filter Object Type for Message Type
=>bd64 - Maintenance of ALE or any other Distribution Model
Hope this helps, Do reward.

What are the master data tables for 'Plant'?

Hi friends,
What are the master data tables for 'Plant' that contain below data?:
PLANT
NAME1
NAME2
LANGUAGE
HOUSE_NUM_STREET
PO_BOX
POSTAL_CODE
CITY
COUNTRY_KEY
REGION
COUNTRY_CODE
CITY_CODE
TIME_ZONE
TAX_JURISDICTION
FACTORY_CALENDAR
Thanks a lot!

Hi,
Plz try out following tables for your requirement.
TOO1W
ADRC
J_1IMOCOMP
T001W : werks TYPE t001w-werks, "PLANT
        name1 TYPE t001w-name1, "PLANT DESCRIPTION
        adrnr TYPE t001w-adrnr, "PLANT ADDRESS NUMBER
ADRC: addrnumber TYPE adrc-addrnumber, "ADDRESS NUMBER
         str_suppl1 TYPE adrc-str_suppl1, "STREET2
         str_suppl2 TYPE adrc-str_suppl2, "STREET3
         street TYPE adrc-street,          "STREET
         city1 TYPE adrc-city1,            "CITY
         post_code1 TYPE adrc-post_code1, "CITY POSTAL CODE
         post_code2 TYPE adrc-post_code2, "PO Box postal code
         tel_number TYPE adrc-tel_number, "TELEPHONE NUMBER
         fax_number TYPE adrc-fax_number, "FAX NUMBER
         str_suppl3 TYPE adrc-str_suppl3, "STREET4
         location TYPE adrc-location,      "STREET5
         city2 TYPE adrc-city2,
For Tax Details :
J_1IMOCOMP :   werks TYPE j_1imocomp-werks,
                          j_1icstno TYPE j_1imocomp-j_1icstno,
                          j_1ilstno TYPE j_1imocomp-j_1ilstno,
Hope this will help.
Regards,
Archana

What Are the Exact Basic rules for Replying a Thread...... -:) @};-

Hi Experts,
After Looking into the forums many days I had a small conclusion about forums,
SAP Forums are better place I have seen for getting a goo dhelp & Knowledge...
Why can't we make it a BEST Place.
This is just a small doubt which I would like to clear myself first,
I have seen many users In the forums asking for a Basic Questions
When cleared, But still they want to have a Spoon feeding with a Sample Code.
When Sample Code Given they will provide the original code and requests for Modifications.
These always looks to me as crazy.
I have seen somelong time agin by moderators posting that In SCN there will be no SPOON FEEDING.
I am not sure whether if still this Rule AVAILABLE or NOT.
Ok if the task is really difficult let them ask again and again,
And it was not replied, let them repost, I agree with them.
And How about a User Registered in SDN very long back and asking for a silly question in below thread,
[Sendin Email to the recipent list -Need correct FM |Getting the address from shipto partner of Bil. item not directly from C.ma]
This is one more example, really funny, The thread poster needs the solution at any cost, he doesn't require and Suggetions,,, {He Only needs Solution}
[Radio Buttons |Radio Buttons;
[Turning Off Debugger |Turning Off Debugger;
[Regarding Amount in words|Regarding Amount in words;
There are 100's of threads like this....Everyone knows this facts.
Check this who answered this one and who replied correct answer, who copied, finally who was rewarded...!
[how to validate POsting period |Re: how to validate POsting period]
Now My Real Problem is....!
User is always intelligent, Only the weakness is in Contributor, trying to help them,..,
And I openly say that Someone requesting for basic help is not DUMB, But the Contributor replying forgets
the basic rules " Why Contributing ?"
According to me It's not the Requestor to see Rules & Requlations before posting the threads,
But its responsibilty for the Contributing person to see th Rules & Requlations before replying the threads,
If we follow the rules and stand on a single word or rule or anything there will be Good Result.
Major Problem is in US not anyone else.
Example Some one saying search in the forum,,, then please no replies after that...
But we are very pity hearted again we post the solution,,,
But it is not at all enough(for cintribtor's)... they will copy the solution and post again by slight Modifications,
And Some users are having 500,600,700,800 Posts with 0 points, registered long long back.
They are completly dependent on forums,,, As they goto office and as they eat, The same they open forums and ask Queries...
They will never realize what they are doing,, and we will never let them improve better...
Finally Lets Discuss About this and Correct & Suggest me if I am wrong,
Is my thoughts are going in the right way or not I am not even sure... Please Aslo Correct me if I did any mistakes.
Thanks & regards,
Dileep .C
Edited by: Dileep Kumar Chinnaiah on Apr 29, 2009 12:33 PM
Title Changed Form
"What to do when someone asking for Basic Questions" to "What Are the Exact Basic rules for Replying a Threads...... "

Hi Stephen,
Very useful Information,
First tell me a little something about my self...
After completion of my certification(as a fresher) I was down the streets hunting the job,
with the insufficient knowledge and being a non-experienced person, I never got one.
And mean while when I got my "S-UserID", I used to be proud, To say frankly, I registerd in SDN & SAP all at a time, without even knowing what I can do there..,
When I got a job afterwords I was doing the job and never seen SDN page for many months,
when I came to know that of we have doubts we can post at SDN. then started requesting help,
I posted only a little, I didnot got the proper response. on that day I decided,
still there are some places where we cannot get help on time and there will be people waiting to get help,
Why cant I put some of my efforts to help others.
Then I searched some topic by Topic in SDN topic by Topic I used to read threads just for knowledge.
when I feel my self comfort for contributing, I started contibuting...!
If you haven't read it, take a look first, so you can understand where things are now.
I dont know where things are now. But these in this thread I mentioned clearly what I seen from the day I started contributing.
I searched with the terms of 'Rules for replying', The results are not as I expected, and this link has subject as
"O SDN, where art thou?" So it dosent hit my in the list.
Like everybody until a certain stage I am also rushing for points.
But I most cases I never tried to copy paste answers. If I done some then that is just to point it myself some day,
I have no hopes or no intrest on the points...! This was discussed with Rob & Matt, at my inital contribution where my points are 36.
From that day till date I have changed a lot to myself.
Everyone cannot change like me because they are not like me & And I dont even expect that...!
I will be online almost 6-8Hrs a day, Not even getting intrest to see the forums just because of the co-contributors.
My only point is I am just requesting to a co-contributor,
Clearly In a example : Lets say contributor has replied to a thread, and if you know that is a correct solution,
please dont reply any more, If you have a better solution than that, then only reply,
Even there is one reply in the thread not a matter, if correct answer leave that query.
If still error persists, Show up with your Idea's...
Dont let down the contributor, by copying his reply and editing and pasting(edit only if incorrect).
I am just looking for this one exactly to circulate between ourselfs.
For this we a little support from moderators to circulate(may be as a rule or may be as a mail to them)
You may say again how many mails we have to send, It dosent matter, one mail to one person one time,
and +ve factors will show up definetly.
A real contributor always understand what I am talking about, but some one who hunts for points will never.
I am really sorry if I am troubling with my doubts & requests,
If so, Pleae forgive me,,
Thanks & regards,
Dileep .C

What is the latest update available for Mac OSX 10.5.8 that will allow me to get the latest update for iTunes. I really need to update my iPhone and CAN'T!! GRRRR!!!

What is the latest update available for Mac OSX 10.5.8 that will allow me to get the latest update for iTunes. I really need to update my iPhone and CAN'T!! GRRRR!!!

Minimally you need Snow Leopard or greater:
Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard — Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service — this includes international calling numbers. The cost is $19.99 (as it was before) plus tax. It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion — System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) — Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) —
             Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) — Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) — Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) — Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) — Model Identifier 3,1 or later
         7. Xserve (Early 2009) — Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

What is the best virus protection for a Mac?

What is the best virus protection for a Mac?

1. This comment applies to malicious software ("malware") that's installed unwittingly by the victim of a network attack. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the victim's computer. That threat is in a different category, and there's no easy way to defend against it. If you have reason to suspect that you're the target of such an attack, you need expert help.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user, but internally Apple calls it "XProtect." The malware recognition database is automatically checked for updates once a day; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't actually been tested by Apple (unless it comes from the Mac App Store), but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. For most practical purposes, applications recognized by Gatekeeper as signed can be considered safe.
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
It can easily be disabled or overridden by the user.
A malware attacker could get control of a code-signing certificate under false pretenses, or could find some other way to evade Apple's controls.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is presumably effective against known attacks, but maybe not against unknown attacks. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. Beyond XProtect, Gatekeeper, and MRT, there’s no evidence of any benefit from other automated protection against malware. The first and best line of defense is always your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and the malware attacker. If you're smarter than he thinks you are, you'll win.
That means, in practice, that you never use software that comes from an untrustworthy source. How do you know whether a source is trustworthy?
Any website that prompts you to install a “codec,” “plug-in,” "player," "extractor," or “certificate” that comes from that same site, or an unknown one, is untrustworthy.
A web operator who tells you that you have a “virus,” or that anything else is wrong with your computer, or that you have won a prize in a contest you never entered, is trying to commit a crime with you as the victim. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
Pirated copies or "cracks" of commercial software, no matter where they come from, are unsafe.
Software of any kind downloaded from a BitTorrent or from a Usenet binary newsgroup is unsafe.
Software with a corporate brand, such as Adobe Flash Player, must be downloaded directly from the developer’s website. If it comes from any other source, it's unsafe.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style "virus" affecting OS X. Merely loading a page with malicious Java content could be harmful. Fortunately, Java on the Web is mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it — not JavaScript — in your browsers. In Safari, this is done by unchecking the box marked Enable Java in the Security tab of the preferences dialog.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a specific task, enable Java only when needed for the task and disable it immediately when done. Close all other browser windows and tabs, and don't visit any other sites while Java is active. Never enable Java on a public web page that carries third-party advertising. Use it, when necessary, only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
Follow the above guidelines, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself from malware.
7. Never install any commercial "anti-virus" or "Internet security" products for the Mac, as they all do more harm than good, if they do any good at all. If you need to be able to detect Windows malware in your files, use the free software ClamXav — nothing else.
Why shouldn't you use commercial "anti-virus" products?
Their design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere.
In order to meet that nonexistent threat, the software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
By modifying the operating system, the software itself may create weaknesses that could be exploited by malware attackers.
8. ClamXav doesn't have these drawbacks. That doesn't mean it's entirely safe. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
ClamXav is not needed, and should not be relied upon, for protection against OS X malware. It's useful only for detecting Windows malware. Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else.
A Windows malware attachment in email is usually easy to recognize. The file name will often be targeted at people who aren't very bright; for example:
♥♥♥♥♥♥♥♥♥♥♥♥♥♥!!!!!!!H0TBABEZ4U!!!!!!!.AVI♥♥♥♥♥♥♥♥♥♥♥♥♥♥.exe
ClamXav may be able to tell you which particular virus or trojan it is, but do you care? In practice, there's seldom a reason to use ClamXav unless a network administrator requires you to run an anti-virus application.
9. The greatest harm done by security software, in my opinion, is in its effect on human behavior. It does little or nothing to protect people from emerging threats, but they get a false sense of security from it, and then they may behave in ways that expose them to higher risk. Nothing can lessen the need for safe computing practices.
10. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.

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