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• IP address shows as a hyphen for failed remote desktop connections in Event Log

  - by PsychoDad

  I am trying to figure out why failed remote desktop connections (from Windows remote desktop) show the client ip address as a hyphen. Here is the event log I get when I type the wrong password for an account (the server is completely external to my home computer): <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" /> <EventID>4625</EventID> <Version>0</Version> <Level>0</Level> <Task>12544</Task> <Opcode>0</Opcode> <Keywords>0x8010000000000000</Keywords> <TimeCreated SystemTime="2012-03-25T19:22:14.694177500Z" /> <EventRecordID>1658501</EventRecordID> <Correlation /> <Execution ProcessID="544" ThreadID="12880" /> <Channel>Security</Channel> <Computer>[Delete for Security Purposes]</Computer> <Security /> </System> <EventData> <Data Name="SubjectUserSid">S-1-0-0</Data> <Data Name="SubjectUserName">-</Data> <Data Name="SubjectDomainName">-</Data> <Data Name="SubjectLogonId">0x0</Data> <Data Name="TargetUserSid">S-1-0-0</Data> <Data Name="TargetUserName">[Delete for Security Purposes]</Data> <Data Name="TargetDomainName">[Delete for Security Purposes]</Data> <Data Name="Status">0xc000006d</Data> <Data Name="FailureReason">%%2313</Data> <Data Name="SubStatus">0xc000006a</Data> <Data Name="LogonType">3</Data> <Data Name="LogonProcessName">NtLmSsp </Data> <Data Name="AuthenticationPackageName">NTLM</Data> <Data Name="WorkstationName">MyComputer</Data> <Data Name="TransmittedServices">-</Data> <Data Name="LmPackageName">-</Data> <Data Name="KeyLength">0</Data> <Data Name="ProcessId">0x0</Data> <Data Name="ProcessName">-</Data> <Data Name="IpAddress">-</Data> <Data Name="IpPort">-</Data> </EventData> </Event> Have found nothing online and am trying to stop terminal services attacks. Any insight is appreciated, I have found nothing online after several hours of seraching...

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• Android XML Parser Performance

  Shane Conder will show us how different XML parsers affect performance with Android and the answers might surprise you. The article provides developers with data for choosing a particular XML parser and Android code that demonstrates all three parsers.

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• Rotating Oracle Database's Alert Log with ADRCI

  Many Oracle database administrators would not only like to report on (ORA-) errors but also manage the alert log itself--saving and/or trimming the alert log, aka alert log rotation. Oracle's new ADR with command interface can easily be used to help rotate Oracle's alert log.

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• gem5 parser error

  - by huxain

  I am trying to run parser from here, but it gives this error: This program requires jinja2 version 2.7 or later I have already installed the jinja2 package by running sudo apt-get install python-jinja2. Can anyone tell me what I'm doing wrong (with a little guide to run the tool as well)? The m5out folder is here, with the stats for a ARM core simulation, so you don't have to install gem5 to get those two files required by the script.

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• Optimizing Transaction Log Throughput

  As a DBA, it is vital to manage transaction log growth explicitly, rather than let SQL Server auto-growth events "manage" it for you. If you undersize the log, and then let SQL Server auto-grow it in small increments, you'll end up with a very fragmented log. This article demonstrates how this can have a significant impact on the performance of any SQL Server operations that need to read the log.

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• How to notify ViewController on parse end with multiple ViewControllers using a single parser.

  - by objneodude

  Hello, I have created a RSS parser and 3 TableViews and it parses the RSS files fine but I don't know how to notify the TableViewController when parsing has ended so it can update the view. The TableViewController initiates the parser and the parsing of a feed. parser = [[RSSParser alloc] initWithURL:@"http://randomfeed.com"]; I can access the single feed items like [parser feedItems]; In parser.m i have implemented the delegate methods of NSXMLParser: - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName - (void)parserDidEndDocument:(NSXMLParser *)parser So how do i get parserDidEndDocument to notify my controllers so i can add the data to the tableview. Cheers from a obj-c beginner.

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• How can I find the space used by a SQL Transaction Log?

  - by Sean Earp

  The SQL Server sp_spaceused stored procedure is useful for finding out a database size, unallocated space, etc. However (as far as I can tell), it does not report that information for the transaction log (and looking at database properties within SQL Server Management Studio also does not provide that information for transaction logs). While I can easily find the physical space used by a transaction log by looking at the .ldf file, how can I find out how much of the log file is used and how much is unused?

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• How can I get Haproxy to not log local requests?

  - by coneybeare

  I am trying to clean out some of the log clutter from my machines and am starting by removing requests that are generated from the server themselves. I have cache warmers running around the clock and I don't want these polluting the logs. I was able to get apache to stop logging local requests by adding a dontlog for the local IP: SetEnvIf Remote_Addr "RE\.DA\.CT\.ED" dontlog CustomLog "|logger -p local3.info -t http" combined env=!dontlog and now I am looking for something similar to put in a configuration for the Haproxy log. How can I prevent 127.0.0.1 requests from writing to the Haproxy log? UPDATE: 2/15/11 I use the excellent loggly service to pull out logs in the cloud, but I am seeing tons of logs like this: 2011 Feb 15 06:09:42.000 ip-10-251-194-96 http: RE.DA.CT.ED - - [15/Feb/2011:06:09:42 -0500] "HEAD /search/Nevad/predictive/txt HTTP/1.0" 200 - "-" "Wget/1.10.2 (Red Hat modified)" 2011 Feb 15 06:09:42.000 127.0.0.1 haproxy[10390]: 127.0.0.1:58408 [15/Feb/2011:06:09:42] www i-5dd7a331.0 0/0/0/8/8 200 210 - - --NI 0/0/0 0/0 "HEAD /search/Nevad/predictive/txt HTTP/1.1" and I want them gone. This question focuses on how to remove that haproxy log line from writing to the server side log in the first place.

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• Getting the general log to work in MySQL 5.6.8

  - by Benjamin

  I can't get the general log to work in this version of MySQL. I added the following lines to /usr/my.cnf: general_log = 1 general_log_file = "/var/log/mysql.log" Then restarted the server: [root@localhost ~]# service mysql restart Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS! The settings seem to be taken into account: mysql> SHOW VARIABLES LIKE 'general_log%'; +------------------+--------------------+ | Variable_name | Value | +------------------+--------------------+ | general_log | ON | | general_log_file | /var/log/mysql.log | +------------------+--------------------+ 2 rows in set (0.01 sec) But the log is never created: [root@localhost ~]# mysqladmin flush-logs [root@localhost ~]# ls -al /var/log/mysql.log ls: cannot access /var/log/mysql.log: No such file or directory Any idea why?

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• SQL Server 2000, large transaction log, almost empty, performance issue?

  - by Mafu Josh

  For a company that I have been helping troubleshoot their database. In SQL Server 2000, database is about 120 gig. Something caused the transaction log to grow MUCH larger than normal to over 100 gig, some hung transaction that didn't commit or roll back for a few days. That has been resolved and it now stays around 1% full or less, due to its hourly transaction log backups. It IS my understanding that a GROWING transaction log file size can cause performance issues. But what I am a little paranoid about is the size. Although mainly empty, MIGHT it be having a negative effect on performance? But I haven't found any documentation that suggests this is true. I did find this link: http://www.bigresource.com/MS_SQL-Large-Transaction-Log-dramatically-Slows-down-processing-any-idea-why--2ahzP5wK.html but in this post I can't tell if their log was full or empty, and there is not any replies to the post in this link. So I am guessing it is not a problem, anyone know for sure?

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• Getting SEC to only monitor latest version of a log file?

  - by user439407

  I have been tasked with running SEC to help correlate PHP logs. The basic setup is pretty straightforward, the problem I'm having is that we want to monitor a log file whose name contains the date(php-2012-10-01.log for instance). How can I tell SEC to only monitor the latest version of the file(and of course switch to the newest log file every day at midnight) I could do something like create a latest version of the file that links to the latest version and run a cron job at midnight to update the link, but I am looking for a more elegant solution

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• SQL SERVER – Monitoring SQL Server Database Transaction Log Space Growth – DBCC SQLPERF(logspace) – Puzzle for You

  - by pinaldave

  First of all – if you are going to say this is very old subject, I agree this is very (very) old subject. I believe in earlier time we used to have this only option to monitor Log Space. As new version of SQL Server released we all equipped with DMV, Performance Counters, Extended Events and much more new enhancements. However, during all this year, I have always used DBCC SQLPERF(logspace) to get the details of the logs. It may be because when I started my career I remember this command and it did what I wanted all the time. Recently I have received interesting question and I thought, I should request your help. However, before I request your help, let us see traditional usage of DBCC SQLPERF(logspace). Every time I have to get the details of the log I ran following script. Additionally, I liked to store the details of the when the log file snapshot was taken as well so I can go back and know the status log file growth. This gives me a fair estimation when the log file was growing. CREATE TABLE dbo.logSpaceUsage ( id INT IDENTITY (1,1), logDate DATETIME DEFAULT GETDATE(), databaseName SYSNAME, logSize DECIMAL(18,5), logSpaceUsed DECIMAL(18,5), [status] INT ) GO INSERT INTO dbo.logSpaceUsage (databaseName, logSize, logSpaceUsed, [status]) EXEC ('DBCC SQLPERF(logspace)') GO SELECT * FROM dbo.logSpaceUsage GO I used to record the details of log file growth every hour of the day and then we used to plot charts using reporting services (and excel in much earlier times). Well, if you look at the script above it is very simple script. Now here is the puzzle for you. Puzzle 1: Write a script based on a table which gives you the time period when there was highest growth based on the data stored in the table. Puzzle 2: Write a script based on a table which gives you the amount of the log file growth from the beginning of the table to the latest recording of the data. You may have to run above script at some interval to get the various data samples of the log file to answer above puzzles. To make things simple, I am giving you sample script with expected answers listed below for both of the puzzle. Here is the sample query for puzzle: -- This is sample query for puzzle CREATE TABLE dbo.logSpaceUsage ( id INT IDENTITY (1,1), logDate DATETIME DEFAULT GETDATE(), databaseName SYSNAME, logSize DECIMAL(18,5), logSpaceUsed DECIMAL(18,5), [status] INT ) GO INSERT INTO dbo.logSpaceUsage (databaseName, logDate, logSize, logSpaceUsed, [status]) SELECT 'SampleDB1', '2012-07-01 7:00:00.000', 5, 10, 0 UNION ALL SELECT 'SampleDB1', '2012-07-01 9:00:00.000', 16, 10, 0 UNION ALL SELECT 'SampleDB1', '2012-07-01 11:00:00.000', 9, 10, 0 UNION ALL SELECT 'SampleDB1', '2012-07-01 14:00:00.000', 18, 10, 0 UNION ALL SELECT 'SampleDB3', '2012-06-01 7:00:00.000', 5, 10, 0 UNION ALL SELECT 'SampleDB3', '2012-06-04 7:00:00.000', 15, 10, 0 UNION ALL SELECT 'SampleDB3', '2012-06-09 7:00:00.000', 25, 10, 0 GO Expected Result of Puzzle 1 You will notice that there are two entries for database SampleDB3 as there were two instances of the log file grows with the same value. Expected Result of Puzzle 2 Well, please a comment with valid answer and I will post valid answers with due credit next week. Not to mention that winners will get a surprise gift from me. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: DBCC

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• Communication between lexer and parser

  - by FredOverflow

  Every time I write a simple lexer and parser, I stumble upon the same question: how should the lexer and the parser communicate? I see four different approaches: The lexer eagerly converts the entire input string into a vector of tokens. Once this is done, the vector is fed to the parser which converts it into a tree. This is by far the simplest solution to implement, but since all tokens are stored in memory, it wastes a lot of space. Each time the lexer finds a token, it invokes a function on the parser, passing the current token. In my experience, this only works if the parser can naturally be implemented as a state machine like LALR parsers. By contrast, I don't think it would work at all for recursive descent parsers. Each time the parser needs a token, it asks the lexer for the next one. This is very easy to implement in C# due to the yield keyword, but quite hard in C++ which doesn't have it. The lexer and parser communicate through an asynchronous queue. This is commonly known under the title "producer/consumer", and it should simplify the communication between the lexer and the parser a lot. Does it also outperform the other solutions on multicores? Or is lexing too trivial? Is my analysis sound? Are there other approaches I haven't thought of? What is used in real-world compilers? It would be really cool if compiler writers like Eric Lippert could shed some light on this issue.

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• How To View and Write To System Log Files on Ubuntu

  - by Chris Hoffman

  Linux logs a large amount of events to the disk, where they’re mostly stored in the /var/log directory in plain text. Most log entries go through the system logging daemon, syslogd, and are written to the system log. Ubuntu includes a number of ways of viewing these logs, either graphically or from the command-line. You can also write your own log messages to the system log — particularly useful in scripts. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Function inside .profile results in no log-in

  - by bioShark

  I've created a custom function in my .profile, and I've added right at the bottom, after my custom aliases : # custom functions function eclipse-gtk { cd ~/development/eclipse-juno ./eclipse_wb.sh & cd - } The function starts a custom version of my eclipse. After I've added it, because I didn't wanted to log-out/log-in, I've reloaded my profile with the command: . ~/.profile and then I've tested my function by calling eclipse-gtk and it worked without any issue. Today when I booted, I couldn't log in. After providing my password, in a few seconds I was back at the log-in screen. Dropping to command line using CTR + ALT + F1, I've commented out the function in my .profile and the log-in was possible without any issue. My question is, what did I do wrong when I wrote the function? And if there is something wrong, why did it work yesterday after reloading the profile. Thanks in advance. Using: Ubuntu 12.04

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• Ubuntu One Files for Android will not let me log in

  - by user20867

  I installed Ubuntu One Files on my Nexus One phone. When I tap Log in on the main screen, the app tries to log in then after a few seconds returns the following message: Log-in failed, please try again later. I have an Ubuntu One account, and when I tap Register on the main screen for Ubuntu One Files, I can log in using my phone's Web browser. But if I go back to the app and try to log in, I get the same error. Again, my phone is a Nexus One running Android 2.3.4. The phone is not rooted or modded in any way.

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• write client ip in iis 7.0 log over firewalls

  - by Guy Bertental

  Hi, I a solution for IIS 7.0 which runs on windows server 2008 64bit to write my clients IP to IIS logs while the server is behind firewalls and proxies (Pass X-Forwarded-For header value). I've tried to install the an ISAPI Filter written by Joe Pruitt. it works great on Windows Server 2003 32bit IIS 6.0, but seems to do nothing at all on windows server 2008 64bit IIS 7.0. Did anyone try this ISAPI filter on this version of OS? or have another solution? link to the Joe Pruitt's (from F5) ISAPI filter: http://devcentral.f5.com/weblogs/Joe/archive/2009/08/19/x_forwarded_for_log_filter_for_windows_servers.aspx best regards, guy bertental

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• Open Source Log Aggregators?

  - by Dean J

  I have sixteen servers using Log4J logs, accessible by ssh. I want to see the output of all logs on my desktop machine. Apache Chainsaw can presumably do this, but the documentation isn't getting me there. "Put all the jars into your ~/.chainsaw directory", got that. "Chainsaw will automatically use the functionality in those JARs"? Nope. Chainsaw isn't picking up log4j-chainsaw-vfs.jar, by the look of it, so sftp is out. Any suggestions other than Chainsaw?

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• iphone crash log with dSym not loading debug information

  - by AngeDeLaMort

  Hello, I was trying to see why my application crashed on the device (iPhone) using the dSym generated along the executable (in ad hoc), but I don't know why, there isn't any useful information. It seems that "Organizer" is able to find the appropriate dSym and translate some data into more readable one, but when it comes to my application, I just have an address. Since I know how to reproduce it, I've tried to setup my build so it can help me in the future. So, I've tried to find if I had all the proper flags set int the project build properties and everything seems fine. So after doing some research, it seems that all information are stripped during link time and the dSym seems completely useless. I've played with some flags, but nothing changed. So, is there something special to do in order to get the crash file human readable? Or is it impossible in the ad hoc setting? The closest thing near to work that I've done was to build a debug version and look up the address in it. At least it seems to give the right file. So, I made a sample app and here what I have: (the line I want is #4): Thread 0 Crashed: 0 libobjc.A.dylib 0x00003ebc objc_msgSend + 20 1 UIKit 0x0005c970 -[UIView dealloc] + 60 2 UIKit 0x0005c840 -[UIImageView dealloc] + 76 3 CoreFoundation 0x0003963a -[NSObject release] + 28 4 MyApplication 0x000046a6 0x1000 + 13990 5 UIKit 0x00069750 -[UIViewController view] + 44 6 MyApplication 0x000053fa 0x1000 + 17402 The crash is made using 2 successive releases on an object. Thanks in advance.

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• Can Apache httpd be made to log errors to console instead of log files under Windows?

  - by Vilx-

  I'm doing infrequent development with Apache/PHP on my Windows machine so I've opted to run apache as a console process instead of a service. It would be nice if errors could be logged to the console window instead of a logfile so I can see them immediately. Can this be done somehow? It doesn't seem that apache has such a capability built in and I can't find a mod that would do this either.

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• Which rdfa parser for java that supports currently used rdfa attributes?

  - by lennyks

  I am building an app in Java using Jena for semantic information scraping. I am looking for a RDFa parser that would allow me to correctly extract all the rdfa statements. Specifically, one that extracts info about namespaces used and presuming that rdfa tags are correct in the page produces correct triples, ones that distinguish between object and data properties. I went through all rdfa parsers from the site http://rdfa.info/wiki/Consume for Java. They all struggle to extract any rdfa statements and if they do not crash, Jena RDFa parser shows plenty of errors and then dies a terrible death, the data is of little use as it is incorrectly processed and generally mixed up. I am newbie in this area so please be gentle:) I was also thinking of using a library written in different language but then again I don't really know how to plug it into Java code. Any suggestions?

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• Can Apache httpd be made to log errors to console instead of log files?

  - by Vilx-

  I'm doing infrequent development with Apache/PHP on my Windows machine so I've opted to run apache as a console process instead of a service. It would be nice if errors could be logged to the console window instead of a logfile so I can see them immediately. Can this be done somehow? It doesn't seem that apache has such a capability built in and I can't find a mod that would do this either.

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• (log(n))^log(n) and n/log(n), which is faster?

  - by Soup

  f(n)=(log(n))^log(n) g(n)= n/log(n) f=O(g(n))?

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• Embed IF text parser in another game?

  - by DragonFax

  Are there any existing interactive fiction text parsing engines that I can embed in another game or application? I'm looking to use something as a library. I can pass it the available objects and verbs from my own side. It will parse the sentences from the user and give me back some sort of structure/AST describing what the user asked for. Then my own code can then act upon that request. I don't need something SIRI level. The simple sentences and actions that current IF games support is fine. But I'm not looking to write a whole text/sentence parser myself. This isn't an If game and I can't write it entirely in an interactive-fiction language like inform 7. Unfortunatly, I can't seem to find any examples of anyone using the text parsing capabilities of these engines without writing the entire game in that engine's language.

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• Tales of a corrupt SQL log

  - by guybarrette

  Warning: I’m a simple dev, not an all powerful DBA with godly powers. This morning, one of my sites was down and DNN reported a problem with the database.  A quick series of tests revealed that the culprit was a corrupted log file. Easy fix I said, I have daily backups so it’s just a mater of restoring a good copy of the database and log files.  Well, I found out that’s not exactly true.  You see, for this database, I have daily file backups and these are not database backups created by SQL Server. So I restored a set of files from a couple of days ago, stopped the SQL service, copied the files over the bad ones, restarted the service only to find out that SQL doesn’t like when you do that.  It suspects something fishy and marks the database as suspect.  A database marked as suspect can’t be accessed at all.  So now what? I searched throughout the tubes of the InterWeb and found that you can restore from a corrupted log file by creating a new database with the same name as the defective one, then copy the restored database file (the one with data) over the newly created one.  Sweet!  But you still end up with SQL marking the database as suspect but at least, the newly created log is OK.  Well not true, it’s not corrupted but the lack of data makes it not OK for SQL so you need to rebuild the log.  How can you do that when SQL blocks any action the database?  First, you need to change the database status from suspect to emergency.  Then you need to set the database for single access only.  After that, you need to repair the log with DBCC and do the DBA dance.  If you dance long enough, SQL should repair the log file.  Now you need to set the access back to multi user.  Here’s the T-SQL script: use master GO EXEC sp_resetstatus 'MyDatabase' ALTER DATABASE MyDatabase SET EMERGENCY Alter database MyDatabase set Single_User DBCC checkdb('MyDatabase') ALTER DATABASE MyDatabase SET SINGLE_USER WITH ROLLBACK IMMEDIATE DBCC CheckDB ('MyDatabase', REPAIR_ALLOW_DATA_LOSS) ALTER DATABASE MyDatabase SET MULTI_USER So I guess that I would have been a lot easier to restore a SQL backup.  I can’t really say but the InterWeb seems to say so.  Anyway, lessons learned: Vive la différence: File backups are different then SQL backups. Don’t touch me: SQL doesn’t like when you restore a file over a corrupted one. The more the merrier: You should do both SQL and file backups. WTF?: The InterWeb provides you with dozens of way to deal with the problem but many are SQL 2000 or SQL 2005 only, many are confusing and many are written in strange dialects only DBAs understand. var addthis_pub="guybarrette";

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