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• converting ip to long string in mysql command !

  - by Mac Taylor

  hey guys I'm trying to use ip2country technique to show my users'flags simple thing to do is to write a sql statement and show users from session table and then query to see if their ip is in what range and show their flags it simple but dengerous becuase when showing 300 users online and fetching from session table and then query once again ip2country table to get the flags there will be surelly memory overusage problem now i wrote a query to make it in one query : SELECT s.session_ip,ipc.* FROM session s left join ip2country ipc ON ipc.ip_lo<=s.session_ip AND ipc.ip_hi>=s.session_ip WHERE s.session_time > '".( time() - 60) )."' now its clear above query is wrong cause ips saved in ip2country table is long string 1000013824 and ips saved in session table are real ip e.g. 193.169.0.0 now i know how to convert from ip to long in php ip2long() but is there any command in mysql to do it with out building another query !?

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• PHP OOP class Sensative To Counter field name !

  - by Mac Taylor

  hey guys recently i managed to write a class for my stories , and everything is fine , unless counter field that stores page's hits here is my class : class nk_posts { var $data = array(); public function _data() { global $db; $result = $db->sql_query(" SELECT bt_stories.*, bt_tags.*, bt_topics.*, group_concat(DISTINCT bt_tags.tag ) as mytags, group_concat(DISTINCT bt_topics.topicname ) as mytopics FROM bt_stories,bt_tags,bt_topics WHERE CONCAT( ' ', bt_stories.tags, ' ' ) LIKE CONCAT( '%', bt_tags.tid, '%' ) AND CONCAT( ' ', bt_stories.associated, ' ' ) LIKE CONCAT( '%', bt_topics.topicid, '%' ) AND time<=now() AND section='news' AND approved='1' GROUP BY bt_stories.sid ORDER BY bt_stories.sid DESC "); while ($this->data = $db->sql_fetchrow($result)) { $this->sid = $this->data['sid']; $this->title = $this->data['title']; $this->counter = $this->data['counter']; //------Rest of Fields ------ $this->_output(); } } public function _output() { themeindex( $this->sid, $this->title, $this->counter, //------Rest of Fields ------ ); } } problem this class can't show counter filed value , but if i change counter field name to other thing like hit , .. everything goes fine im sure its okay if i write it in normal php mysql way , but i need this to be in OOP way any comment why it's sensitive to counter field name ?!

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• query mysql table and fetch rows posted in 3 days

  - by Mac Taylor

  Hey guys how can i query my mysql database and fetch rows which are posted in earlier 3 days i know how to fetch todays's rows but not 3 days ago time will save in my table like this : 2010-01-20 19:17:49 and this is what i know : SELECT id FROM pages WHERE date=now() but i need to show posts in 3days and im looking for a simple and straight solution ,because i know how to do so in long php codes

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• pathogen#infect not updating the runtimepath

  - by Taylor Price

  I have started working with pathogen.vim with gvim on Windows, following Tim Pope's setup guide at his github repository here. However, I'm running into the problem that pathogen#infect() does not seem to be modifying the runtimepath (as seen by running :echo &runtimepath in gvim). The simple test case _vimrc that I came up with is as follows. Please note that pathogen gets loaded just fine. "Set a base directory. let $BASE_DIR='H:\development\github\vimrc' "Source pathogen since it's not in the normal autoload directory. source $BASE_DIR\autoload\pathogen.vim "Start up pathogen call pathogen#infect() "call pathogen#infect('$BASE_DIR\functions') Neither running pathogen#infect() without an argument (which should add the bundles directory under the vimfiles directory) nor specifying a directory to contain files works. Substituting the pathogen#infect() call with pathogen#runtime_prepend_subdirectories('$BASE_DIR\functions'), which is what pathogen#infect() does fails to change the runtimepath as well. Any ideas that I've missed? Any more information that would be helpful? My repository with the non-trivial example is here.

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• String Array and ConvertTo-HTML

  - by Taylor Gibb

  I cant for the life of me get the contents of a string array (well its not strictly typed but all the items in the array are strings) to become a table, i am trying to use ConvertTo-HTML. For example: $arr = @("One", "Two") $arr | ConvertTo-HTML I have tried -As List, using fragments, even using InputObject, is it even possible ? Edit: i simply want to know if there is anyway to use an array as the input for the ConvertTo-HTML cmdlet, all it does is make a table with the length property of the strings.

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• Write a program for a report derived from the data in the data file JEWELRY. The data is to be input

  - by Taylor

  here is the JEWELRY file 0011 Money_Clip 2.000 50.00 Other 0035 Paperweight 1.625 175.00 Other 0457 Cuff_Bracelet 2.375 150.00 Bracelet 0465 Links_Bracelet 7.125 425.00 Bracelet 0585 Key_Chain 1.325 50.00 Other 0595 Cuff_Links 0.625 525.00 Other 0935 Royale_Pendant 0.625 975.00 Pendant 1092 Bordeaux_Cross 1.625 425.00 Cross 1105 Victory_Medallion 0.875 30.00 Pendant 1111 Marquis_Cross 1.375 70.00 Cross 1160 Christina_Ring 0.500 175.00 Ring 1511 French_Clips 0.687 375.00 Other 1717 Pebble_Pendant 1.250 45.00 Pendant 1725 Folded_Pendant 1.250 45.00 Pendant 1730 Curio_Pendant 1.063 275.00 Pendant this is the program i have used #include <iostream> #include <string> #include <iomanip> #include <fstream> using namespace std; struct productJewelry { string name; double amount; int itemCode; double size; string group; }; int main() { // declare variables ifstream inFile; int count=0; int x=0; productJewelry product[50]; inFile.open("jewelry.txt"); // file must be in same folder if (inFile.fail()) cout << "failed"; cout << fixed << showpoint; // fixed format, two decimal places cout << setprecision(2); while (inFile.peek() != EOF) { // cout << count << " : "; count++; inFile>> product[x].itemCode; inFile>> product[x].name; inFile>> product[x].size; inFile>> product[x].amount; inFile>> product[x].group; // cout << product[x].itemCode << ", " << product[x].name << ", "<< product[x].size << ", " << product[x].amount << endl; x++; if (inFile.peek() == '\n') inFile.ignore(1, '\n'); } inFile.close(); string temp; bool swap; do { swap = false; for (int x=0; x<count;x++) { if (product[x].name>product[x+1].name) { //these 3 lines are to swap elements in array temp=product[x].name; product[x].name=product[x+1].name; product[x+1].name=temp; swap=true; } } } while (swap); for (x=0; x< count; x++) { //cout<< product[x].itemCode<<" "; //cout<< product[x].name <<" "; //cout<< product[x].size <<" "; //cout<< product[x].amount<<" "; //cout<< product[x].group<<" "<<endl; } system("pause"); // to freeze Dev-c++ output screen return 0; } // end main

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• switching on and off in jquery

  - by Mac Taylor

  hey my friends i wrote a code to switch on or off the status of a story ( activate or deactivate ) this is my html part : $status_link = $active==1 ? "active.gif" : "inactive.gif"; <span id='status_link'> <a class='change_status' href='javascript:void(0)' id='$pid'> <img src='images/$status_link' class='active_status' id='$active'></a> </span> and this is my jquery code : <script type="text/javascript">$(function(){ $('.change_status').each(function(){ var pid=$(this).attr('id'); $('.active_status').each(function(){ var type=$(this).attr('id'); .click(function(){ $.post("change_status.php"+"&type="+type+"&pid="+pid, function(data){ $('#status_link').html(data).fadeIn("slow"); }); return false; }); }); </script> and a php function that is easy, i dont think its needed i myself think there is a problem with my jquery code how can i change the picture of that image by clicking on it

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• Confusing alias mySQL

  - by Taylor

  I keep getting the same number outputted for the Total Sales, Minimum Sale, Largest Sale and Average Sale. The Total Invoices is working perfectly, but I cant seem to figure out how to fix the other ones. Here's the query: SELECT SUM( b.`Number of Invoices`) AS `Total Invoices`, SUM( b.`Total Customer Purchases`) AS `Total Sales`, MIN( b.`Total Customer Purchases`) AS `Minimum Sale`, MAX( b.`Total Customer Purchases`) AS `Largest Sale`, AVG( b.`Total Customer Purchases`) AS `Average Sale` FROM (SELECT a.CUS_CODE, COUNT(a.`Number of Invoices`) AS `Number of Invoices`, SUM(a.`Invoice Total`) AS `Total Customer Purchases` FROM ( SELECT CUS_CODE, LINE.INV_NUMBER AS `Number of Invoices`, SUM(LINE.LINE_UNITS * LINE.LINE_PRICE) AS `Invoice Total` FROM `ttriggs`.`INVOICE`, `ttriggs`.`LINE` WHERE INVOICE.INV_NUMBER = LINE.INV_NUMBER GROUP BY CUS_CODE, LINE.INV_NUMBER ) a ) b GROUP BY b.CUS_CODE; Heres the database diagram https://www.dropbox.com/s/b8cy5l29jwh8lyv/1_edit.jpg Subquery generates: CUS_CODE 10011 Number of Invoices 8 Total Customer Purchases 1119.03 Any help is greatly appreciated, Thanks!

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• What is the point of Convert.ToDateTime(bool)?

  - by Paul Alan Taylor

  I was doing some type conversion routines last night for a system I am working on. One of the conversions involves turning string values into their DateTime equivalents. While doing this, I noticed that the Convert.ToDateTime() method had an overload which accepted a boolean parameter. First question? Under what circumstances could this ever be useful? I went a little further and tried to execute the method in QuickWatch. Either way ( true or false ), the routine returns an InvalidCastException. Second question? Why is this method even here?

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• how to change a while sql query loop into an array loop

  - by Mac Taylor

  hey guys i record number of queries of my website and in page the below script runs , 40 extra queries added to page . how can I change this sql connection into a propper and light one function tree_set($index) { //global $menu; Remove this. $q=mysql_query("select id,name,parent from cats where parent='$index'"); if(mysql_num_rows($q) === 0) { return; } // User $tree instead of the $menu global as this way there shouldn't be any data duplication $tree = $index > 0 ? '<ul>' : ''; // If we are on index 0 then we don't need the enclosing ul while($arr=mysql_fetch_assoc($q)) { $subFileCount=mysql_query("select id,name,parent from cats where parent='{$arr['id']}'"); if(mysql_num_rows($subFileCount) > 0) { $class = 'folder'; } else { $class = 'file'; } $tree .= '<li>'; $tree .= '<span class="'.$class.'">'.$arr['name'].'</span>'; $tree .=tree_set("".$arr['id'].""); $tree .= '</li>'."\n"; } $tree .= $index > 0 ? '</ul>' : ''; // If we are on index 0 then we don't need the enclosing ul return $tree; } i heard , this can be done by changing it into an array , but i don't know how to do so thanks in advance

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• To copy data from a webpage into an array of structs and sorted by“name” before producing the data.

  - by Taylor

  include include include include using namespace std; struct productJewelry { string name; double amount; int itemCode; double size; string group; }; int main() { // declare variables ifstream inFile; int count=0; int x=0; productJewelry product[50]; inFile.open("jewelry.txt"); // file must be in same folder if (inFile.fail()) cout << "failed"; cout << fixed << showpoint; // fixed format, two decimal places cout << setprecision(2); while (inFile.peek() != EOF) { // cout << count << " : "; count++; inFile product[x].itemCode; inFile product[x].name; inFile product[x].size; inFile product[x].amount; inFile product[x].group; // cout << product[x].itemCode << ", " << product[x].name << ", "<< product[x].size << ", " << product[x].amount << endl; x++; if (inFile.peek() == '\n') inFile.ignore(1, '\n'); } inFile.close(); string temp; bool swap; do { swap = false; for (int x=0; xproduct[x+1].name) { //these 3 lines are to swap elements in array temp=product[x].name; product[x].name=product[x+1].name; product[x+1].name=temp; swap=true; } } } while (swap); for (x=0; x< count; x++) { //cout<< product[x].itemCode<<" "; //cout<< product[x].name <<" "; //cout<< product[x].size <<" "; //cout<< product[x].amount<<" "; //cout<< product[x].group<<" "<<endl; } system("pause"); // to freeze Dev-c++ output screen return 0; } // end main THE FILE THAT NEEDS TO PRINT AND BE SORTED IN ALPHABETICAL ORDER 0011 Money_Clip 2.000 50.00 Other 0035 Paperweight 1.625 175.00 Other 0457 Cuff_Bracelet 2.375 150.00 Bracelet 0465 Links_Bracelet 7.125 425.00 Bracelet 0585 Key_Chain 1.325 50.00 Other 0595 Cuff_Links 0.625 525.00 Other 0935 Royale_Pendant 0.625 975.00 Pendant 1092 Bordeaux_Cross 1.625 425.00 Cross 1105 Victory_Medallion 0.875 30.00 Pendant 1111 Marquis_Cross 1.375 70.00 Cross 1160 Christina_Ring 0.500 175.00 Ring 1511 French_Clips 0.687 375.00 Other 1717 Pebble_Pendant 1.250 45.00 Pendant 1725 Folded_Pendant 1.250 45.00 Pendant 1730 Curio_Pendant 1.063 275.00 Pendant

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• What does the $1$2$4 mean in this preg_replace?

  - by Taylor

  Got this function for ammending the query string and was wondering what the replacement part of the pre_replace meant (ie- $1$2$4). function add_querystring_var($url, $key, $value) { $url = preg_replace('/(.*)(\?|&)' . $key . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&'); $url = substr($url, 0, -1); if (strpos($url, '?') === false) { return ($url . '?' . $key . '=' . $value); } else { return ($url . '&' . $key . '=' . $value); } } Not too familiar with regular expression stuff. I get the various parts to preg_replace but not 100% about the use of '$1$2$4' in the replacement part.

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• Entity Framework 5 not updating navigation properties in both entities

  - by Taylor

  I have updated a project to use the new Entity framework shipped with VS2012, however I have run into some of my code throwing exceptions. In the VS10 version of EF I was able to create or modify and Entity and use its navigation properties before calling SaveChanges() For example: A Navigation property of a client having a collection of Invoices. Client c = new Client(); Invoice I = new Invoice(); c.Invoices.Add(I); I would then be able to use Invoice.Client somewhere in my code before actually saving it without issue. Now Invoice.Client == null. Similarly in setting I.Client = C, I does not show up under C.Invoices What am I missing here or is this just simply how EF5 is?

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• To copy data from a webpage into an array of structs and sorted by"name" before producing the data.

  - by Taylor

  include include include include using namespace std; struct productJewelry { string name; double amount; int itemCode; double size; string group; }; int main() { // declare variables ifstream inFile; int count=0; int x=0; productJewelry product[50]; inFile.open("jewelry.txt"); // file must be in same folder if (inFile.fail()) cout << "failed"; cout << fixed << showpoint; // fixed format, two decimal places cout << setprecision(2); while (inFile.peek() != EOF) { // cout << count << " : "; count++; inFile product[x].itemCode; inFile product[x].name; inFile product[x].size; inFile product[x].amount; inFile product[x].group; // cout << product[x].itemCode << ", " << product[x].name << ", "<< product[x].size << ", " << product[x].amount << endl; x++; if (inFile.peek() == '\n') inFile.ignore(1, '\n'); } inFile.close(); string temp; bool swap; do { swap = false; for (int x=0; xproduct[x+1].name) { //these 3 lines are to swap elements in array temp=product[x].name; product[x].name=product[x+1].name; product[x+1].name=temp; swap=true; } } } while (swap); for (x=0; x< count; x++) { //cout<< product[x].itemCode<<" "; //cout<< product[x].name <<" "; //cout<< product[x].size <<" "; //cout<< product[x].amount<<" "; //cout<< product[x].group<<" "<<endl; } system("pause"); // to freeze Dev-c++ output screen return 0; } // end main

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• Outlook 2011 Contact Import from CSV with Notes containing new lines / cr / lf

  - by Paul Hargreaves

  I'm trying to import several thousand contacts into Outlook 2011 for Mac. Everything is working well except the Notes field as I cannot figure out how to get new lines / carriage returns into it. There is no documentation for the exact format that Outlook supports. After searching the web and experimenting I have tried: Creating a single contact in Outlook with Notes containing several lines of text. I then export the contact to a csv, deleting the contact in Outlook, then re-import. All lines in Notes merge together :-/ Following tips I found such as containing new lines around quotes. e.g. http://creativyst.com/Doc/Articles/CSV/CSV01.htm (search for line-break) Switching the CSV format from DOS to Unix, experimenting using manually injected ctrl-characters such as ^M etc. I would include an example export/import but unfortunately the the new breaks included do not work well in a SU code block.

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• Powerpoint missing from DCOM config

  - by Paul Prewett

  I have an application that automates the creation of powerpoint files in an ASP.NET environment. This requires that I install powerpoint on the server and also set permissions in the DCOM configuration snap-in (dcomcnfg) to give permissions to the launching user ([DOMAIN]\ASPNET in this case) to run the application. I have this setup running successfully on several Win2k3 machines. I am configuring my first Win2k8 machine and after installing powerpoint on the server, the "Microsoft Powerpoint Presentation" node in DCOM config is not showing up. Other installed Office apps are showing (Excel, Graph, etc...), just not Powerpoint. So when I attempt to run the application, I get an "Access denied" error, which is exactly what I would expect. The user doesn't have permission. Therefore, access denied. The specific error log entry is: The machine-default permission settings do not grant Local Activation permission for the COM Server application with CLSID {91493441-5A91-11CF-8700-00AA0060263B} to the user [DOMAIN]\ASPNET I searched the entire list for the CLSID, too, thinking maybe the name wasn't loading properly. No dice. I also re-ran the setup program for Office thinking maybe there would be some option or something I unchecked in the custom setup options, but I saw nothing that looked helpful. I'm flummoxed. Can anyone out there suggest something to help me get Powerpoint to show up in the list of DCOM applications? Many thanks.

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• ssh + tinyproxy: poor performance

  - by Paul

  I am currently in China and I would like to still visit some blocked websites (facebook, youtube). I have VPS in the USA and I have installed tinyproxy on it. I log in on my VPS with SSH port-forwarding and I have configured my browser appropriately. Everything works more or less: I can surf to those websites but everything is inusually slow and sometimes data transfer stops abruptly. This probably has to do with the fact that I see some errors in my shell on the VPS like : channel 6: open failed: connect failed: Also in the log-file of tinyproxy I see some bad things: ERROR Sep 06 14:52:14 [28150]: getpeer_information: getpeername() error: Transport endpoint is not connected ERROR Sep 06 14:52:15 [28153]: writebuff: write() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:15 [28168]: readbuff: recv() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:15 [28151]: readbuff: recv() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:15 [28143]: readbuff: recv() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:17 [28147]: writebuff: write() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:23 [28137]: writebuff: write() error "Connection reset by peer" on file descriptor 7 ERROR Sep 06 14:52:26 [28168]: getpeer_information: getpeername() error: Transport endpoint is not connected ERROR Sep 06 14:52:27 [28186]: read_request_line: Client (file descriptor: 7) closed socket before read. ERROR Sep 06 14:52:31 [28160]: getpeer_information: getpeername() error: Transport endpoint is not connected

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• Name resolution for the name <name> timed out after none of the configured DNS servers responded.

  - by Paul Brown

  Installed Windows 7 (previously ran XP and Vista with no problems) a couple of weeks ago and I'm at least once a day getting the above error show up in the event logs and losing all internet connection. The only current way to resolve it is to reboot my cable modem. My ISP have been running diagnostics on it and tell me there is no problem whatsoever. I've configured my router (and PC on occasion) to point at OpenDNS - still occurs. I've had the PC directly connected to the modem - still occurs. If I can give more info that might of use please ask thanks Update: After moaning at my ISP for a couple of weeks (VirginMedia) they agreed to send me out a new cable modem ... and I've not had the issue since.

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• Can't get Postfix Admin to use Dovecot password hashing

  - by Paul

  I'm setting up Postfix Admin 2.91 and trying to use dovecot:SHA512-CRYPT for password hashing. In config.inc.php I have set: // dovecot:CRYPT-METHOD = use dovecotpw -s 'CRYPT-METHOD'. Example: dovecot:CRAM-MD5 // (WARNING: don't use dovecot:* methods that include the username in the hash - you won't be able to login to PostfixAdmin in this case) $CONF['encrypt'] = 'dovecot:SHA512-CRYPT'; // If you use the dovecot encryption method: where is the dovecotpw binary located? // for dovecot 1.x // $CONF['dovecotpw'] = "/usr/sbin/dovecotpw"; // for dovecot 2.x (dovecot 2.0.0 - 2.0.7 is not supported!) $CONF['dovecotpw'] = "/usr/sbin/doveadm pw"; I have also tried SHA256-CRYPT and MD5-CRYPT with same results (as I understand it, these do not include usernames in the hash) In running setup.php, I get the following message when trying to create an admin account: can't encrypt password with dovecotpw, see error log for details Server error log reports: 1624#0: *6 FastCGI sent in stderr: "PHP message: dovecotpw password encryption failed. PHP message: STDERR output: sh: 1: /usr/sbin/doveadm: not found" while reading response header from upstream <...> upstream: "fastcgi://unix:/var/run/php5-fpm.sock:" <...> A couple quick checks: # ll /usr/sbin/doveadm -rwxr-xr-x 1 root root 423264 Feb 13 23:23 /usr/bin/doveadm* # doveadm pw -l CRYPT MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA SHA256-CRYPT SHA512-CRYPT # doveadmin pw -s SHA512-CRYPT Enter new password: Retype new password: {SHA512-CRYPT}$6$<long string here>/ Using Dovecot 2.2, PHP 5.5, MariaDB 10, Postfix 2.11, nginx 1.6.0, Ubuntu 12.04.

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• Pain removing a perl rootkit

  - by paul.ago

  So, we host a geoservice webserver thing at the office. Someone apparently broke into this box (probably via ftp or ssh), and put some kind of irc-managed rootkit thing. Now I'm trying to clean the whole thing up, I found the process pid who tries to connect via irc, but i can't figure out who's the invoking process (already looked with ps, pstree, lsof) The process is a perl script owned by www user, but ps aux |grep displays a fake file path on the last column. Is there another way to trace that pid and catch the invoker? Forgot to mention: the kernel is 2.6.23, which is exploitable to become root, but I can't touch this machine too much, so I can't upgrade the kernel EDIT: lsof might help: lsof -p 9481 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAMEss perl 9481 www cwd DIR 8,2 608 2 /ss perl 9481 www rtd DIR 8,2 608 2 /ss perl 9481 www txt REG 8,2 1168928 38385 /usr/bin/perl5.8.8ss perl 9481 www mem REG 8,2 135348 23286 /lib64/ld-2.5.soss perl 9481 www mem REG 8,2 103711 23295 /lib64/libnsl-2.5.soss perl 9481 www mem REG 8,2 19112 23292 /lib64/libdl-2.5.soss perl 9481 www mem REG 8,2 586243 23293 /lib64/libm-2.5.soss perl 9481 www mem REG 8,2 27041 23291 /lib64/libcrypt-2.5.soss perl 9481 www mem REG 8,2 14262 23307 /lib64/libutil-2.5.soss perl 9481 www mem REG 8,2 128642 23303 /lib64/libpthread-2.5.soss perl 9481 www mem REG 8,2 1602809 23289 /lib64/libc-2.5.soss perl 9481 www mem REG 8,2 19256 38662 /usr/lib64/perl5/5.8.8/x86_64-linux-threa d-multi/auto/IO/IO.soss perl 9481 www mem REG 8,2 21328 38877 /usr/lib64/perl5/5.8.8/x86_64-linux-threa d-multi/auto/Socket/Socket.soss perl 9481 www mem REG 8,2 52512 23298 /lib64/libnss_files-2.5.soss perl 9481 www 0r FIFO 0,5 1068892 pipess perl 9481 www 1w FIFO 0,5 1071920 pipess perl 9481 www 2w FIFO 0,5 1068894 pipess perl 9481 www 3u IPv4 130646198 TCP 192.168.90.7:60321-www.**.net:ircd (SYN_SENT)

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• Using unixODBC to connect to Oracle server

  - by Paul

  I am trying to configure our web server (RHEL 5.4 x86) to connect to an Oracle database using unixODBC. I have installed unixODBC-2.2.11-7.1.1, which yum tells me is the latest version. I have also installed the Oracle InstantClient 11.2 and the Oracle InstantClient ODBC library. I have symlinked the all the .so files in /usr/lib/oracle/11.2/client/lib to /usr/lib. I have set $LD_LIBRARY_PATH to /usr/lib/, $ORACLE_HOME to /usr/lib/oracle and $TNS_ADMIN to the directory containing my (valid) Tnsnames.ora file. Here are the contents of my /etc/odbcinst.ini file: [Oracle] Description = Oracle ODBC Connection Driver = /usr/lib/libsqora.so.11.1 Setup = FileUsage = and my /etc/odbc.ini file: [Oracle] Application Attributes = T Attributes = W BatchAutocommitMode = IfAllSuccessful CloseCursor = F DisableDPM = F DisableMTS = T Driver = Oracle EXECSchemaOpt = EXECSyntax = T Failover = T FailoverDelay = 10 FailoverRetryCount = 10 FetchBufferSize = 64000 ForceWCHAR = F Lobs = T Longs = T MetadataIdDefault = F QueryTimeout = T ResultSets = T ServerName = //<host>:<port>/<db> SQLGetData extensions = F Translation DLL = Translation Option = 0 UserID = (ServerName has been edited...host, port, and db are actually there, and correct) When I run isql I get $ isql -v Oracle isql: symbol lookup error: /usr/lib/libsqora.so.11.1: undefined symbol: SQLGetPrivateProfileStringW And running dltest gives me $ dltest Oracle SQLConnect [dltest] ERROR dlopen: Oracle: cannot open shared object file: No such file or directory If anyone has any insights I would be grateful, I've been trying to get this to connect for about 5 hours now... I am going home for the night, but will gladly provide more details, if necessary, tomorrow morning, to anyone willing to help...

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• Windows Server 2003 - Handling hundreds of simultaneous downloads

  - by Paul Hinett

  At the moment I have a single server with 4 1TB hard disks, daily I haver over 150 MP3 music files uploaded (around 80mb each). At busy periods there is over 300 people streaming / downloading these mixes all at once, 75% of the activity is on the most recently uploaded stuff which is all on a single hard disk. My read speads on the hard disk are very low due to such high activity of 200+ reads all happening at the same time on a single hard disk (ran some tests with HDTach). What would be a logical solution to solve this, a couple of ideas I had are: Load balance with another server Install faster hard disks (what are best these days? SCSI / SATA) Spread the most accessed files over the 4 drives so it is sharing the load between all 4 disks, instead of all the most accessed (most recent) all on the most recently installed drive. Obviouslly load balance is the most expensive option, but would it dramatically help? Some help on this situation would be great!

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• System State Backups using NTbackup fail with error 0x800423f4 (relating to volume shadow copy)

  - by Paul Zimmerman

  We have a Windows Server 2003 R2 running Service Pack 2. It is a domain controller (Global Catalog) and our main internal DNS server. We run a System State backup of the machine to back up Active Directory information and save the backup to a different server. This server has a single drive (C:), and we do have Shadow Copies enabled for the volume (which are completing successfully). The System State Backup is now failing with the following listed in the backup logs: Volume shadow copy creation: Attempt 1. "Event Log Writer" has reported an error 0x800423f4. This is part of System State. The backup cannot continue. Error returned while creating the volume shadow copy:800423f4 Aborting Backup. The operation did not successfully complete. When doing a vssadmin list writers, we sometimes get the following reported for the Event Log Writer (other times it says that it is in the state of "[1] Stable" with "No error"): Writer name: 'Event Log Writer' Writer Id: {eee8c692-67ed-4250-8d86-390603070d00} Writer Instance Id: {c7194e96-868a-49e5-ba99-89b61977753c} State: [8] Failed Last error: Retryable error We have tried disabling the event log service via the registry, rebooting, deleting the event log files from the drive, then re-enabling the service via the registry and rebooting, but this didn't seem to solve the issue. We also get an error message when in the event viewer when trying to open the log for the "File Replication Service" of "Unable to complete the operation on 'File Replication Service'. The security descriptor structure is invalid." I have searched the error via Google and tried a number of different things, but nothing has seemed to help. Any suggestions on what we might try to get the Event Log Writer to behave would be greatly appreciated!

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• Xen won't start after it had been working

  - by Paul Tomblin

  I've been setting up this Debian Stable system with a dom0 and 3 domUs. It was working fine for several days, and I'm almost ready to deploy it to the rack. But last night I shut it down with all three domUs still running for the first time, and today when I started it up, xend won't start. In /var/log/messages, I have: Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: blktapctrl: v1.0.0 Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Found driver: [raw image (aio)] Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Found driver: [raw image (sync)] Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Found driver: [vmware image (vmdk)] Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Found driver: [ramdisk image (ram)] Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Found driver: [qcow disk (qcow)] Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: couldn't find device number for 'blktap0' Apr 18 13:01:33 xen-test BLKTAPCTRL[4248]: Unable to start blktapctrl and in /var/log/xen/xend.log, I have this: [2010-04-18 12:46:32 3523] INFO (SrvDaemon:219) Xend exited with status 1. [2010-04-18 13:01:34 4255] INFO (SrvDaemon:331) Xend Daemon started [2010-04-18 13:01:34 4255] INFO (SrvDaemon:335) Xend changeset: unavailable. [2010-04-18 13:01:34 4255] INFO (SrvDaemon:342) Xend version: Unknown. [2010-04-18 13:01:34 4255] ERROR (SrvDaemon:353) Exception starting xend (no element found: line 1, column 0) Traceback (most recent call last): File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvDaemon.py", line 345, in run servers = SrvServer.create() File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvServer.py", line 251, in create root.putChild('xend', SrvRoot()) File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvRoot.py", line 40, in __init__ self.get(name) File "/usr/lib/xen-3.2-1/lib/python/xen/web/SrvDir.py", line 82, in get val = val.getobj() File "/usr/lib/xen-3.2-1/lib/python/xen/web/SrvDir.py", line 52, in getobj File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvNode.py", line 30, in _ _init__ self.xn = XendNode.instance() File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendNode.py", line 709, in instance inst = XendNode() File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendNode.py", line 164, in __init__ saved_pifs = self.state_store.load_state('pif') File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendStateStore.py", line 104, in load_state dom = minidom.parse(xml_path) File "/usr/lib/python2.5/xml/dom/minidom.py", line 1915, in parse return expatbuilder.parse(file) File "/usr/lib/python2.5/xml/dom/expatbuilder.py", line 924, in parse result = builder.parseFile(fp) File "/usr/lib/python2.5/xml/dom/expatbuilder.py", line 211, in parseFile parser.Parse("", True) ExpatError: no element found: line 1, column 0 [2010-04-18 13:01:34 4253] INFO (SrvDaemon:219) Xend exited with status 1. Any clues as to what might be going wrong?

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• Wifi connection issues for Android with Linksys WRT54G

  - by Paul

  I have had this Linksys WRT54G for many years now, and it has always worked without a hassle. But for some reason I am unable to connect my brand new Android phone (Magic). The wireless network is broadcast and simply secured using WPA PSK TKIP. My phone sees the network (with excellent signal strength) and correctly asks me for the WPA password. Then when it tries to connect it stays for a while on "Retrieving address..." (liberately translated from Dutch) and finally fails reading "Remember, secured with WPA". Does anybody know how to solve this issue? edit: the android phone is genuine (not modified/rooted or whatsoever).

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