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• Why is SMB from a Windows 7 64-bit to OS X Server so slow when using DNS vs IP?

  - by chuboy

  When I connect my 64-bit Windows 7 to a OS X server using \servername, my transfer rates are around 400KB/s. However, when I do the same thing using \192.168.0.10 (which is the IP of the server), transfer rates jump to 30MB/s. All of this happens via a gigabit ethernet cable with my wireless disabled I heard Samba itself "doesn't use DNS", but if that's the case, how am I able to connect to the server in the first place?

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• To stop returning through SSH using Pexpect

  - by chrissygormley

  Hello, I am trying to use pexpect to ssh into a computer but I do not want to return back to the original computer. The code I have is: #!/usr/bin/python2.6 import pexpect, os def ssh(): # Logs into computer through SSH ssh_newkey = 'Are you sure you want to continue connecting' # my ssh command line p=pexpect.spawn('ssh [email protected].10') i=p.expect([ssh_newkey,'password:',pexpect.EOF]) p.sendline("password") i=p.expect('-bash-3.2') print os.getcwd() ssh() This allows me to ssh into the computer but when I run the os.getcwd() the pexpect has returned me to the original computer. You see I want to ssh into another computer and use their environment not drag my environment using pexpect. Can anyone suggest how to get this working or an alternative way. Thanks

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• MySQL Execution Time Spikes

  - by Brett

  I am having issues with MySQL all of the sudden today. Details: OS: CentOS release 5.7 Server type: Parallels virtuozzo container running on mediatemple DV 4.0 package Average total memory usage: <500mb Total memory usage allowed: 1gb (part of shared pool for emergency only, users are only guaranteed 500mb) Processor: 1ghz Main database sizes with most usage: 275mb & 107mb server stack: nginx 1.0.10, mysql 5.1.54, php 5.3.8 with php-fpm innodb_buffer_pool_size=100M php-fpm max children: 5 Webapps: custom php-based sites, magento & drupal slow query timeout is set to 1 second Steps I completed towards diagnosis: Cannot restart container yet - I will try later tonight when our domestic traffic has dropped Enabled mysql and php-fpm slowlog. Found functions that did DB queries in php-fpm slowlog were taking over 1s to complete at times Found some simple queries in mysql slowlog taking well over 1s to complete that should take less than 1s. Most interesting - execution time seems to spike at times. A query will take .2s a couple times, then one time it will take 8s to run the same query. These results were verified by running raw SQL queries through mysql command line. Top does not reveal anything too interesting Only resource related thing i can see is load averages much higher than normal Up until today, mysql has been fine, there have been no major changes to the db since yesterday. Sometimes things are so bad, I am seeing bad gateway errors after 60s of execution time. Innodb is doing on average 300-1400 reads/sec. Mysql is doing 3-10 queries/sec slow query count in 2 hours uptime is 171 (with slow timeout at 1 second) Tried restarting mysql, nginx, php-fpm multiple times For example: UPDATE `catalogsearch_query` SET `query_text` = 'EW 90', `num_results` = '7532', `popularity` = '99180', `redirect` = NULL, `synonym_for` = NULL, `store_id` = '1', `display_in_terms` = '1', `is_active` = '1', `is_processed` = '1', `updated_at` = '2012-05-08 21:38:31' WHERE (query_id='31'); This query took 17sec to complete one time, rest of the time around .079 sec. But varies, sometimes 1sec, sometimes .004 sec. This is running the same query, over and over with a couple seconds time in between each. Most tables are innodb, and sometimes I noticed the lock time taking 90% of the query execution time, but most of the time lock time is insignificant. Any idea what's going on here?

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• Linux flash player settings dialog unclickable

  - by bullettime

  I'm using Slackware 13. When a flash app pops up the allow/deny dialog, I'm stuck because the buttons are unclickable. My adobe flash player version is 10,0,42,34. How can I fix this problem? Edit: I'm using fluxbox. I'm using an acer notebook with a synaptics touchpad... both the touchpad and the mouse can't interact with the dialog.

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• The Alias directive ... will probably never match because it overlaps an earlier Alias.

  - by mmattax

  I'm getting this warning from Apache: The Alias directive in /etc/httpd/conf.d/foo.conf at line 10 will probably never match because it overlaps an earlier Alias. However the Alias overlaps on a completely different virtual host. Might this be caused because one alias is on a name-based virtual host while the other alias is on an IP-based virtual host? Everything is working fine, just the warning is a bit annoying...

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• What is the cause of these Visual Studio 2010 errors & warnings?

  - by volpack

  I don't know the cause of these errors I am receiving from Visual Studio 2010. This is the code from my program from line 343 to line 408: int create_den_from_img(char *img_file_name_part, int xlen, int ylen, int zlen ) { IplImage* imgs = 0; char str[80]; unsigned char *data,*imgdata; /* allocating memory */ data = (unsigned char *) malloc(xlen * ylen * zlen * sizeof(unsigned char) ); if(data==NULL) { printf("error in allocating memory \n"); exit(1); } /* Getting the filename & iterating through tiff images */ for(int k = 0; k < zlen; k++) { int count=2; int tmp=k+1; while(tmp/10) { count=count-1; tmp=tmp/10; } switch(count) { case 2:sprintf(str,"%s00%d.tif",img_file_name_part,k+1); break; case 1:sprintf(str,"%s0%d.tif",img_file_name_part,k+1); break; default:sprintf(str,"%s%d.tif",img_file_name_part,k+1); break; } printf("%s\n",str); /* Loading Image using OpenCV */ imgs=cvLoadImage(str,-1); if(imgs==NULL) { printf("error in opening image \n"); exit(1); } imgdata=(uchar *)imgs->imageData; for(int j =0; j < ylen; j++) { for(int i =0; i < xlen; i++) { data[ k*xlen*ylen + j*xlen + i ] = imgdata[ j*xlen+i ]; } } cvReleaseImage(&imgs ); } /* populating `data` variable is done. So, calling `write_den` */ if(write_den("test.den",data,xlen,ylen,zlen)==0) { printf("Error in creating den file\n"); exit(1); } printf("Den file created\n"); } These are the list of errors: Error 3 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 4 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 5 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 6 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 358 1 MTP_TEST Error 7 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 358 1 MTP_TEST Error 9 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 358 1 MTP_TEST Error 10 error C2059: syntax error : ')' c:\examples\denfile.c 358 1 MTP_TEST Error 11 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 359 1 MTP_TEST Error 12 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 361 1 MTP_TEST Error 13 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 370 1 MTP_TEST Error 14 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 372 1 MTP_TEST Error 15 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 374 1 MTP_TEST Error 16 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 17 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 18 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 19 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 388 1 MTP_TEST Error 20 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 388 1 MTP_TEST Error 22 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 388 1 MTP_TEST Error 23 error C2059: syntax error : ')' c:\examples\denfile.c 388 1 MTP_TEST Error 24 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 389 1 MTP_TEST Error 25 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 26 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 27 error C2143: syntax error : missing ')' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 28 error C2143: syntax error : missing ';' before 'type' c:\examples\denfile.c 390 1 MTP_TEST Error 29 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 390 1 MTP_TEST Error 31 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 390 1 MTP_TEST Error 32 error C2059: syntax error : ')' c:\examples\denfile.c 390 1 MTP_TEST Error 33 error C2143: syntax error : missing ';' before '{' c:\examples\denfile.c 391 1 MTP_TEST Error 34 error C2065: 'k' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 35 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 36 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 37 error C2065: 'j' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST Error 38 error C2065: 'i' : undeclared identifier c:\examples\denfile.c 392 1 MTP_TEST I've been getting these kind of errors all day long. Sometimes the code compiles, while at other time it doesn't. Its really annoying.

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• Making hosts accessible between LAN subnets

  - by nixnotwin

  I have two inerfaces on my router with tomato firmwre: br0 and vlan4. br0 is on 192.168.0.0/16 subnet and vlan4 on 10.0.1.0/24 subnet. As I don't want the different network services on br0 available on vlan4, I have added this firewall rule: iptables -I INPUT -i vlan4 -j ACCEPT; iptables -I FORWARD -i vlan4 -o vlan2 -m state --state NEW -j ACCEPT; iptables -I FORWARD -i br0 -o vlan4 -j DROP; vlan2 is my WAN (internet acess). The issue that I want to solve is that I want to make one host from 192.168.0.0/16 network (br0), which has ip 192.168.0.50, available on vlan4 (10.0.1.0/24). Only that host should be available on vlan4 (and all other hosts on br0 should be inaccessible). What firewall rules can be used to do it? Edit 1: Output of iptables -nvL FORWARD: Chain FORWARD (policy DROP 4 packets, 204 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- vlan4 192.168.0.50 0.0.0.0/0 0.0.0.0/0 0 0 ACCEPT all -- vlan4 ppp0 0.0.0.0/0 0.0.0.0/0 state NEW 229 13483 ACCEPT all -- vlan4 vlan2 0.0.0.0/0 0.0.0.0/0 state NEW 0 0 DROP all -- br0 vlan3 0.0.0.0/0 0.0.0.0/0 0 0 ACCEPT all -- vlan3 ppp0 0.0.0.0/0 0.0.0.0/0 state NEW 67 3405 ACCEPT all -- vlan3 vlan2 0.0.0.0/0 0.0.0.0/0 state NEW 0 0 ACCEPT all -- br0 br0 0.0.0.0/0 0.0.0.0/0 34 1360 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 state INVALID 758 40580 TCPMSS tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU 11781 2111K restrict all -- * vlan2 0.0.0.0/0 0.0.0.0/0 26837 19M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 wanin all -- vlan2 * 0.0.0.0/0 0.0.0.0/0 287 15927 wanout all -- * vlan2 0.0.0.0/0 0.0.0.0/0 283 15723 ACCEPT all -- br0 * 0.0.0.0/0 0.0.0.0/0 0 0 upnp all -- vlan2 * 0.0.0.0/0 0.0.0.0/0 Output of iptables -t nat -nvL PREROUTING: Chain PREROUTING (policy ACCEPT 6887 packets, 526K bytes) pkts bytes target prot opt in out source destination 855 83626 WANPREROUTING all -- * * 0.0.0.0/0 222.228.137.223 0 0 DROP all -- vlan2 * 0.0.0.0/0 192.168.0.0/16 0 0 DNAT udp -- * * 192.168.0.0/16 !192.168.0.0/16 udp dpt:53 to:192.168.0.1

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• How to find vector for the quaternion from X Y Z rotations

  - by can poyrazoglu

  I am creating a very simple project on OpenGL and I'm stuck with rotations. I am trying to rotate an object indepentdently in all 3 axes: X, Y, and Z. I've had sleepless nights due to the "gimbal lock" problem after rotating about one axis. I've then learned that quaternions would solve my problem. I've researched about quaternions and implementd it, but I havent't been able to convert my rotations to quaternions. For example, if I want to rotate around Z axis 90 degrees, I just create the {0,0,1} vector for my quaternion and rotate it around that axis 90 degrees using the code here: http://iphonedevelopment.blogspot.com/2009/06/opengl-es-from-ground-up-part-7_04.html (the most complicated matrix towards the bottom) That's ok for one vector, but, say, I first want to rotate 90 degrees around Z, then 90 degrees around X (just as an example). What vector do I need to pass in? How do I calculate that vector. I am not good with matrices and trigonometry (I know the basics and the general rules, but I'm just not a whiz) but I need to get this done. There are LOTS of tutorials about quaternions, but I seem to understand none (or they don't answer my question). I just need to learn to construct the vector for rotations around more than one axis combined. UPDATE: I've found this nice page about quaternions and decided to implement them this way: http://www.cprogramming.com/tutorial/3d/quaternions.html Here is my code for quaternion multiplication: void cube::quatmul(float* q1, float* q2, float* resultRef){ float w = q1[0]*q2[0] - q1[1]*q2[1] - q1[2]*q2[2] - q1[3]*q2[3]; float x = q1[0]*q2[1] + q1[1]*q2[0] + q1[2]*q2[3] - q1[3]*q2[2]; float y = q1[0]*q2[2] - q1[1]*q2[3] + q1[2]*q2[0] + q1[3]*q2[1]; float z = q1[0]*q2[3] + q1[1]*q2[2] - q1[2]*q2[1] + q1[3]*q2[0]; resultRef[0] = w; resultRef[1] = x; resultRef[2] = y; resultRef[3] = z; } Here is my code for applying a quaternion to my modelview matrix (I have a tmodelview variable that is my target modelview matrix): void cube::applyquat(){ float& x = quaternion[1]; float& y = quaternion[2]; float& z = quaternion[3]; float& w = quaternion[0]; float magnitude = sqrtf(w * w + x * x + y * y + z * z); if(magnitude == 0){ x = 1; w = y = z = 0; }else if(magnitude != 1){ x /= magnitude; y /= magnitude; z /= magnitude; w /= magnitude; } tmodelview[0] = 1 - (2 * y * y) - (2 * z * z); tmodelview[1] = 2 * x * y + 2 * w * z; tmodelview[2] = 2 * x * z - 2 * w * y; tmodelview[3] = 0; tmodelview[4] = 2 * x * y - 2 * w * z; tmodelview[5] = 1 - (2 * x * x) - (2 * z * z); tmodelview[6] = 2 * y * z - 2 * w * x; tmodelview[7] = 0; tmodelview[8] = 2 * x * z + 2 * w * y; tmodelview[9] = 2 * y * z + 2 * w * x; tmodelview[10] = 1 - (2 * x * x) - (2 * y * y); tmodelview[11] = 0; glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadMatrixf(tmodelview); glMultMatrixf(modelview); glGetFloatv(GL_MODELVIEW_MATRIX, tmodelview); glPopMatrix(); } And my code for rotation (that I call externally), where quaternion is a class variable of the cube: void cube::rotatex(int angle){ float quat[4]; float ang = angle * PI / 180.0; quat[0] = cosf(ang / 2); quat[1] = sinf(ang/2); quat[2] = 0; quat[3] = 0; quatmul(quat, quaternion, quaternion); applyquat(); } void cube::rotatey(int angle){ float quat[4]; float ang = angle * PI / 180.0; quat[0] = cosf(ang / 2); quat[1] = 0; quat[2] = sinf(ang/2); quat[3] = 0; quatmul(quat, quaternion, quaternion); applyquat(); } void cube::rotatez(int angle){ float quat[4]; float ang = angle * PI / 180.0; quat[0] = cosf(ang / 2); quat[1] = 0; quat[2] = 0; quat[3] = sinf(ang/2); quatmul(quat, quaternion, quaternion); applyquat(); } I call, say rotatex, for 10-11 times for rotating only 1 degree, but my cube gets rotated almost 90 degrees after 10-11 times of 1 degree, which doesn't make sense. Also, after calling rotation functions in different axes, My cube gets skewed, gets 2 dimensional, and disappears (a column in modelview matrix becomes all zeros) irreversibly, which obviously shouldn't be happening with a correct implementation of the quaternions.

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• Common and maximum number of virtual machines per server?

  - by Rabarberski

  For a project I am trying to get real-life estimates for the number of virtual machines per server, both typically and maximally. Of course, the maximum number of VMs would be depending on the type of applications (disk intensive, network intensive, ...), and server hardware (like number of cores, memory, ...), but still it would be useful to know if a typical maximum is about 10, 20 or 30 VMs per server. Can anybody give practical numbers?

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• Google Chrome: JavaScript associative arrays, evaluated out of sequence

  - by Jerry

  Ok, so on a web page, I've got a JavaScript object which I'm using as an associative array. This exists statically in a script block when the page loads: var salesWeeks = { "200911" : ["11 / 2009", "Fiscal 2009"], "200910" : ["10 / 2009", "Fiscal 2009"], "200909" : ["09 / 2009", "Fiscal 2009"], "200908" : ["08 / 2009", "Fiscal 2009"], "200907" : ["07 / 2009", "Fiscal 2009"], "200906" : ["06 / 2009", "Fiscal 2009"], "200905" : ["05 / 2009", "Fiscal 2009"], "200904" : ["04 / 2009", "Fiscal 2009"], "200903" : ["03 / 2009", "Fiscal 2009"], "200902" : ["02 / 2009", "Fiscal 2009"], "200901" : ["01 / 2009", "Fiscal 2009"], "200852" : ["52 / 2008", "Fiscal 2009"], "200851" : ["51 / 2008", "Fiscal 2009"] }; The order of the key/value pairs is intentional, as I'm turning the object into an HTML select box such as this: <select id="ddl_sw" name="ddl_sw"> <option value="">== SELECT WEEK ==</option> <option value="200911">11 / 2009 (Fiscal 2009)</option> <option value="200910">10 / 2009 (Fiscal 2009)</option> <option value="200909">09 / 2009 (Fiscal 2009)</option> <option value="200908">08 / 2009 (Fiscal 2009)</option> <option value="200907">07 / 2009 (Fiscal 2009)</option> <option value="200906">06 / 2009 (Fiscal 2009)</option> <option value="200905">05 / 2009 (Fiscal 2009)</option> <option value="200904">04 / 2009 (Fiscal 2009)</option> <option value="200903">03 / 2009 (Fiscal 2009)</option> <option value="200902">02 / 2009 (Fiscal 2009)</option> <option value="200901">01 / 2009 (Fiscal 2009)</option> <option value="200852">52 / 2008 (Fiscal 2009)</option> <option value="200851">51 / 2008 (Fiscal 2009)</option> </select> ...with code that looks like this (snipped from a function): var arr = []; arr.push( "<select id=\"ddl_sw\" name=\"ddl_sw\">" + "<option value=\"\">== SELECT WEEK ==</option>" ); for(var key in salesWeeks) { arr.push( "<option value=\"" + key + "\">" + salesWeeks[key][0] + " (" + salesWeeks[key][1] + ")" + "<\/option>" ); } arr.push("<\/select>"); return arr.join(""); This all works fine in IE, FireFox and Opera. However in Chrome, the order comes out all weird: <select id="ddl_sw" name="ddl_sw"> <option value="">== SELECT WEEK ==</option> <option value="200852">52 / 2008 (Fiscal 2009)</option> <option value="200908">08 / 2009 (Fiscal 2009)</option> <option value="200906">06 / 2009 (Fiscal 2009)</option> <option value="200902">02 / 2009 (Fiscal 2009)</option> <option value="200907">07 / 2009 (Fiscal 2009)</option> <option value="200904">04 / 2009 (Fiscal 2009)</option> <option value="200909">09 / 2009 (Fiscal 2009)</option> <option value="200903">03 / 2009 (Fiscal 2009)</option> <option value="200905">05 / 2009 (Fiscal 2009)</option> <option value="200901">01 / 2009 (Fiscal 2009)</option> <option value="200910">10 / 2009 (Fiscal 2009)</option> <option value="200911">11 / 2009 (Fiscal 2009)</option> <option value="200851">51 / 2008 (Fiscal 2009)</option> </select> NOTE: This order, though weird, does not change on subsequent refreshes. It's always in this order. So, what is Chrome doing? Some optimization in how it processes the loop? In the first place, am I wrong to rely on the order that the key/value pairs are declared in any associative array? I never questioned it before, I just assumed the order would hold because this technique has always worked for me in the other browsers. But I suppose I've never seen it stated anywhere that the order is guaranteed. Maybe it's not? Any insight would be awesome. Thanks.

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• Xforwarding doesn't allow for switching users

  - by Dan

  I'm ssh'd into a remote computer and xforwarding is working fine... but as soon as I "sudo su -" or "sudo su user2" it no longer Xforwards anything giving me the error: X11 connection rejected because of wrong authentication. xterm Xt error: Can't open display: localhost:10.0 Any Ideas? Thanks

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• Unable to start auditd

  - by George Reith

  I am on CentOS 5.8 final I recently installed auditd via yum install audit however I am unable to start it. I edited the configuration file to give a verbose output of the error it is recieving in starting up and this is the output: # service auditd start Starting auditd: Config file /etc/audit/auditd.conf opened for parsing log_file_parser called with: /var/log/audit/audit.log log_format_parser called with: RAW log_group_parser called with: root priority_boost_parser called with: 4 flush_parser called with: INCREMENTAL freq_parser called with: 20 num_logs_parser called with: 4 qos_parser called with: lossy dispatch_parser called with: /sbin/audispd name_format_parser called with: NONE max_log_size_parser called with: 5 max_log_size_action_parser called with: ROTATE space_left_parser called with: 75 space_action_parser called with: SYSLOG action_mail_acct_parser called with: root admin_space_left_parser called with: 50 admin_space_left_action_parser called with: SUSPEND disk_full_action_parser called with: SUSPEND disk_error_action_parser called with: SUSPEND tcp_listen_queue_parser called with: 5 tcp_max_per_addr_parser called with: 1 tcp_client_max_idle_parser called with: 0 enable_krb5_parser called with: no GSSAPI support is not enabled, ignoring value at line 30 krb5_principal_parser called with: auditd GSSAPI support is not enabled, ignoring value at line 31 Started dispatcher: /sbin/audispd pid: 3097 type=DAEMON_START msg=audit(1339336882.187:9205): auditd start, ver=1.8 format=raw kernel=2.6.32-042stab056.8 auid=4294967295 pid=3095 res=success config_manager init complete Error setting audit daemon pid (Connection refused) type=DAEMON_ABORT msg=audit(1339336882.189:9206): auditd error halt, auid=4294967295 pid=3095 res=failed Unable to set audit pid, exiting The audit daemon is exiting. Error setting audit daemon pid (Connection refused) [FAILED] The only information I can find online is that this may be due to SELinux, however SELinux is giving me problems of it's own. No matter what I do it appears to be disabled (I want to enable it). The configuration is set to enforced and the server has been rebooted many a time however sestatus still returns SELinux status: disabled. Can anyone shine some light on this problem? EDIT: I don't know if it is related but I noticed the following message appearing in my /var/log/messages Jun 10 16:25:22 s1 iscsid: iSCSI logger with pid=2056 started! Jun 10 16:25:22 s1 iscsid: Missing or Invalid version from /sys/module/scsi_transport_iscsi/version. Make sure a up to date scsi_transport_iscsi module is loaded and a up todate version of iscsid is running. Exiting... I try to start the iSCSI daemon myself (I have not a clue what it does; I am a linux newbie) and I get the following error: Starting iSCSI daemon: FATAL: Could not load /lib/modules/2.6.32-042stab056.8/modules.dep: No such file or directory FATAL: Could not load /lib/modules/2.6.32-042stab056.8/modules.dep: No such file or directory FATAL: Could not load /lib/modules/2.6.32-042stab056.8/modules.dep: No such file or directory FATAL: Could not load /lib/modules/2.6.32-042stab056.8/modules.dep: No such file or directory FATAL: Could not load /lib/modules/2.6.32-042stab056.8/modules.dep: No such file or directory [FAILED] If I go to /lib/modules/ I notice the directory exists but is completely empty.

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• Netgear WG311 v2 not identified on Windows 7

  - by iamrohitbanga

  I have a Netgear WG311 v2 wireless card. It was working fine on vista. Now I have installed Windows 7 and the device is not identified. Device Manager shows it as an Ethernet card. When I update the driver using the list provided with the Windows distribution. It shows it under Wireless devices in Device Manager but it says device cannot start code 10. Any idea on how to install it.

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• DIG command is hanging and not timing out as expected

  - by igalvez

  I ran into the following issue by accident when playing around with the DIG command and testing some domain names. Why does DIG hang and not timeout after 10 seconds when executing the following: dig +tries=1 +tries=1 +retry=1 +time=5 +trace google.us.com DIG hangs for about 30 seconds instead of timing out and then dies with the following error message: dig: couldn't get address for 'ns.reserved-domain.uk.com': no more Do I need to set another flag/option for DIG to have it timeout instead of hanging, or is this a bug? DIG version: DiG 9.9.5-3-Ubuntu

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• iPod OS version, Xcode version and Mac OS X version

  - by user36089

  Hello everyone My Mac OS X version is 10.5.8 Xocde 3.1.4 I hope to debug my app on the iPod Touch iPod OS version 3.1.3(7E18) Organizer told me that I need newest Xcode. I downloaded and try to install the newest Xcode, but it told me I need new Mac Os X. So I clicked my Mac mini's software update to check if there is new version. It told me my softwares are newest. Welcome any comment Thanks interdev

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• wondering how much data bandwidth can a 3G gsm cell tower can support?

  - by Karim

  i was always wondering how many simaltinues users can a 3G tower supports with its data rates? i mean they advertize 28.8Mb/Sec for the 3G Data but in reallity if a lot of people use it say 10 , it wont give 288Mb/Sec bandwidth. i didnt find anywhere where such information is published so i thought to ask here. dont know why the cell operators keep it such a secret :)

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• Resize partition of Windows 7 running on VirtualBox with dynamically allocated storage

  - by Nicolas Raoul

  I run Windows 7 inside VirtualBox. I resized the disk of Windows 7 from 25 GB to 50 GB: VBoxManage modifyhd Windows\ 7\ Pro.vdi --resize 50000 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% PROBLEM: I can' grow the partition, neither with Windows 7 itself nor with GParted: It looks like VirtualBox does not tell the client OS about the new size. What additional step is necessary?

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• Shows error message "ialmrnt 5 display driver stooped working".

  - by user68705

  when ever i play movie with high resolution(720hz) My Destop PC shows a black screen and after a while shows message "ialmrnt 5 display driver stooped working". and i am having the following configuration 1GB RAM DDR1 windows xp OS processor- Intel Pentium 4 Processor Srm-Motherboard Graphics Driver Product Detected -Intel® 845G Current Driver Installed-6.14.10.3889 Intel Chipset Software Installation Utility (Chipset INF) - Current Version Installed 9.1.0.1012 kindly help me to fix this problem

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• i dont see the option to save the partition table

  - by Bipin Neupane

  the issue is this Undo the CLEAN command on the portable hdd : DISKPART unfortunately at step no 10, i dont see the option to save the partition table.but there are options for: deeper search quit write a partition. wat should i do?plz help(i run testdrive 6.14) here is how this happened... I ran cmd then diskpart then selected the volume used 'CLEAN' command to clear the configuration (accidentally) does reinstalling my windows solve this ? will my hard drive work on other computers?

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• Gmail sends bulk messages sent by postfix to spam - spf, rDNS are set up (headers inside)

  - by snitko

  here are the headers of the blocked messages (actual domain replaced with domain.com, ip address with n.n.n.n and gmail account name with person.account): Delivered-To: [email protected] Received: by 10.216.89.137 with SMTP id c9cs247685wef; Tue, 6 Dec 2011 16:06:37 -0800 (PST) Received: by 10.224.199.134 with SMTP id es6mr14447757qab.2.1323216395590; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Return-Path: <[email protected]> Received: from mail.domain.com (domain.com. [n.n.n.n]) by mx.google.com with ESMTP id b16si7471407qcv.131.2011.12.06.16.06.35; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates n.n.n.n as permitted sender) client-ip=n.n.n.n; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates n.n.n.n as permitted sender) [email protected] Received: by mail.domain.com (Postfix, from userid 5001) id 26ADE381E3; Tue, 6 Dec 2011 19:06:35 -0500 (EST) Received: from domain.com (domain.com [127.0.0.1]) by mail.domain.com (Postfix) with ESMTP id 0148638030 for <[email protected]>; Tue, 6 Dec 2011 19:06:31 -0500 (EST) Date: Tue, 06 Dec 2011 19:06:31 -0500 From: DomainApp <[email protected]> Reply-To: [email protected] To: [email protected] Message-ID: <[email protected]> Subject: Roman Snitko says hi Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-No-Spam: True Precedence: bulk List-Unsubscribe: [email protected] Messages go to Spam folder on various gmail accounts, so it's not a coincidence. I followed all gmail guides on sending bulk emails from here https://mail.google.com/support/bin/answer.py?hl=en&answer=81126. I also checked my ip-address here http://www.dnsblcheck.co.uk/ and it's NOT on the blacklists. Thus I have two questions: What may be the possible reason for the messages to go to Spam folder? Is there any way to contact Google and ask them what causes this? Update: I have set up openDKIM on my server, everything works, gmail message headers say that dkim=pass, which means everything is set up correctly. Messages still end up in Spam folder.

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• I/O intensive MySql server on Amazon AWS

  - by rhossi

  We recently moved from a traditional Data Center to cloud computing on AWS. We are developing a product in partnership with another company, and we need to create a database server for the product we'll release. I have been using Amazon Web Services for the past 3 years, but this is the first time I received a spec with this very specific hardware configuration. I know there are trade-offs and that real hardware will always be faster than virtual machines, and knowing that fact forehand, what would you recommend? 1) Amazon EC2? 2) Amazon RDS? 3) Something else? 4) Forget it baby, stick to the real hardware Here is the hardware requirements This server will be focused on I/O and MySQL for the statistics, memory size and disk space for the images hosting. Server 1 I/O The very main part on this server will be I/O processing, FusionIO cards have proven themselves extremely efficient, this is currently the best you can have in this domain. o Fusion ioDrive2 MLC 365GB (http://www.fusionio.com/load/-media-/1m66wu/docsLibrary/FIO_ioDrive2_Datasheet.pdf) CPU MySQL will use less CPU cores than Apache but it will use them very hard, the E7 family has 30M Cache L3 wichi provide boost performance : o 1x Intel E7-2870 will be ok. Storage SAS will be good enough in terms of performance, especially considering the space required. o RAID 10 of 4 x SAS 10k or 15k for a total available space of 512 GB. Memory o 64 GB minimum is required on this server considering the size of the statistics database. Warning: the statistics database will grow quickly, if possible consider starting with 128 GB directly, it will help. This server will be focused on I/O and MySQL for the statistics, memory size and disk space for the images hosting. Server 2 I/O The very main part on this server will be I/O processing, FusionIO cards have proven themselves extremely efficient, this is currently the best you can have in this domain. o Fusion ioDrive2 MLC 365GB (http://www.fusionio.com/load/-media-/1m66wu/docsLibrary/FIO_ioDrive2_Datasheet.pdf) CPU MySQL will use less CPU cores than Apache but it will use them very hard, the E7 family has 30M Cache L3 wichi provide boost performance : o 1x Intel E7-2870 will be ok. Storage SAS will be good enough in terms of performance, especially considering the space required. o RAID 10 of 4 x SAS 10k or 15k for a total available space of 512 GB. Memory o 64 GB minimum is required on this server considering the size of the statistics database. Warning: the statistics database will grow quickly, if possible consider starting with 128 GB directly, it will help. Thanks in advance. Best,

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• open source VDI solution [closed]

  - by sysconfig

  looking to build a 10 node to eventually 50 node VDI solution. the only OS on the desktop will be ubuntu ( or some other linux ) looking for easy setup administration, and remote administration etc. will probably just use diskless PC as clients for now, but would want a solution that can accommodate thin-clients as well, and maybe there its just XDMCP from the server. must be completely open source ( no VMware ) thoughts ?

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• Speed of TrueCrypt whole disk encryption

  - by Gareth

  I'm getting a new development laptop soon, and I'm thinking of using TrueCrypt to encrypt the whole disk. What kind of performance drop can I expect? 10%? 30%? more? Also, assuming the workload has an effect, would compiling/using Visual Studio be affected much? I cannot seem to find anything like this on the web.

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• Xenu Link Checker - "No Connection" status

  - by Ed Talmadge

  In the past, I received no errors from Xenu Link Checker. Today, I get thousands of pages with status "No Connection". The URL's that show the error are accessible. I've used the "Retry Broken Links" command 10 times and still get the same list of errors. Why does this happen?

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• Cleaning up temp files in OSX

  - by deddebme

  I was a Windows person for more than 10 years. Around 4 months ago, I switched to Mac, and I have never looked back. But there is one thing that bothers me, which is my Mac partition volume is losing space slowly and gradually. I am pretty sure there are a lot of orphaned temporary files laying around in the volume. I know where to find the obsoleted temp files in my Windows partition, how about in Mac OSX?

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