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• TinyDNS and proper settings for SPF records

  - by Teddy

  I've inherited a TinyDNS configuration that have following entries for SPF: @domain.com:x.x.x.3:a::86400 @domain.com:x.x.x.103:c:10:86400 =domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.103:86400 'domain.com:v=spf1 ip4\072x.x.x.3 ip4\07231.130.96.103 ptr\072mail.domain.com +mx a -all:3600 'mail.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 'a.mx.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 This is the result from http://www.kitterman.com/spf/validate.html SPF record lookup and validation for: domain.com SPF records are primarily published in DNS as TXT records. The TXT records found for your domain are: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all SPF records should also be published in DNS as type SPF records. No type SPF records found. Checking to see if there is a valid SPF record. Found v=spf1 record for domain.com: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all evaluating... SPF record passed validation test with pySPF (Python SPF library)! I'm struggling with this from yesterday and cant figure it why this validator returns No type SPF records found. I see in BIND we cand define SPF type record with example.com. IN SPF "v=spf1 a -all", but in TinyDNS we only have TXT records that we set for SPF, maybe this is a problem?

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• SSH dynamic port forwarding, "Connection refused"

  - by crodjer

  I am trying to do dynamic portforwarding using openssh through a remote computer following this command: ssh -D 6789 rohan@<remote_ip> -p <remote_port> This should set up a socks server on my comp as I assume. I am able to use this for normal browsing but can't connect to IRC or remote ssh (through proxychains). I get this error: channel 3: open failed: connect failed: Connection refused A high verbosity level output of the error: $ debug1: Connection to port 6789 forwarding to socks port 0 requested. debug2: fd 9 setting TCP_NODELAY debug2: fd 9 setting O_NONBLOCK debug3: fd 9 is O_NONBLOCK debug1: channel 3: new [dynamic-tcpip] debug2: channel 3: pre_dynamic: have 0 debug2: channel 3: pre_dynamic: have 4 debug2: channel 3: decode socks5 debug2: channel 3: socks5 auth done debug2: channel 3: pre_dynamic: need more debug2: channel 3: pre_dynamic: have 0 debug2: channel 3: pre_dynamic: have 10 debug2: channel 3: decode socks5 debug2: channel 3: socks5 post auth debug2: channel 3: dynamic request: socks5 host 4.2.2.2 port 53 command 1 debug3: Wrote 96 bytes for a total of 3335 channel 3: open failed: connect failed: Connection refused debug2: channel 3: zombie debug2: channel 3: garbage collecting debug1: channel 3: free: direct-tcpip: listening port 6789 for 4.2.2.2 port 53, connect from 127.0.0.1 port 33694, nchannels 4 debug3: channel 3: status: The following connections are open: #2 client-session (t4 r0 i0/0 o0/0 fd 6/7 cfd -1) debug3: channel 3: close_fds r 9 w 9 e -1 c -1 I googled for this too, but couldn't find any solutions.

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• Getting error ArrayIndexOutOfBoundsException: 2048 at everything I'm doing in Eclipse

  - by Bernhard V

  Hi, whatever I'm doing in Eclipse, I get an error. At start up I get an error at Java tooling initializing. I get an error when I want to open a type. And it's always the same error. For example, when opening a type I get: An internal error occurred during: "Cache refresh". 2048 The error at the start up also prints the error code as 2048. I'm using the most up to date version of Eclipse. Do you know a way to fix this issue? edit: Here the stack trace of the error at Java tooling initializing: java.lang.ArrayIndexOutOfBoundsException: 2048 at org.eclipse.jdt.internal.core.index.DiskIndex.readStreamChars(DiskIndex.java:870) at org.eclipse.jdt.internal.core.index.DiskIndex.initialize(DiskIndex.java:370) at org.eclipse.jdt.internal.core.index.Index.<init>(Index.java:96) at org.eclipse.jdt.internal.core.search.indexing.IndexManager.getIndex(IndexManager.java:248) at org.eclipse.jdt.internal.core.search.indexing.IndexManager.getIndexes(IndexManager.java:309) at org.eclipse.jdt.internal.core.search.PatternSearchJob.getIndexes(PatternSearchJob.java:81) at org.eclipse.jdt.internal.core.search.PatternSearchJob.ensureReadyToRun(PatternSearchJob.java:50) at org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:174) at org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllTypeNames(BasicSearchEngine.java:1122) at org.eclipse.jdt.core.search.SearchEngine.searchAllTypeNames(SearchEngine.java:713) at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog$ConsistencyRunnable.refreshSearchIndices(FilteredTypesSelectionDialog.java:653) at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog$ConsistencyRunnable.run(FilteredTypesSelectionDialog.java:636) at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog.reloadCache(FilteredTypesSelectionDialog.java:679) at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$RefreshCacheJob.run(FilteredItemsSelectionDialog.java:1502) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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• New virtualization project and old SAN

  - by Chris

  Hi, We'll start shortly a partial virtualization of our infrastructure and consolidate a dozen servers into virtuals instances. We'll also add some client application virtualization into the mix for good measure. Two HP DL 380 with the new xeons 56xx and 96 GB of memory each running xenserver + xenapp will then take charge of most of our IT needs. So far, so good. One element that is missing from the picture is the storage part. We need some sort of shared storage to enable live motion and other HA features. We have an IBM DS 4300 SAN that we can use for that. But since it's in production since 2005, I'm not sure about such a critical role for a 5yr old part. So my question is: What is the reliability of this kind of equipment after 5 yr ? Can it last 10 yr with no or few problems ? Since our budjet is tight, not buying another SAN will be a big plus. This lead me to another question: FC disks cost an arm and a leg from IBM. When I type the replacement # in google (for example IBM 300GB 15K 4GBPS FC HDD 42D0410), I can find it at a fraction of the price at various sites. So am I stupid to buy from IBM or naive to trust 3rd party reseller ?? Thanks, Chris

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• Keep-Alive header not sent from Tomcat 5.5 http connector?

  - by Codek

  We're currently using a hardware load balancer, which then goes to Apache and that then goes to Tomcat 5.5 via the AJP connector. We've decided to dump apache for various reasons - In our current system it doesnt provide any advantage. However when I look at the headers sent when we do this, the "Keep-Alive: timeout=15 max=96" header doesnt get sent when you use the tomcat http connector Interestingly, i can find no documentiation on "keepalivetimeout" for tomcat5.5, but i can for tomcat6. But neither can i find evidence that tomcat5.5 doesnt support this setting. here's my connector: <Connector port="8090" maxHttpHeaderSize="8192" maxThreads="400" minSpareThreads="150" maxSpareThreads="300" enableLookups="false" connectionTimeout="2" maxKeepAliveRequests="400" disableUploadTimeout="true" /> So; Is there any way I can specify the keepalive timeout if we use the http connector with tomcat 5.5, and force this header entry to be sent? Just to be clear - the exact header entry i see back from the server is this with apache: Keep-Alive: timeout=2, max=100 But nothing from tomcat/coyote. I've looked at this some more, and I dont think the Keep-Alive header entry really matters. The problem seems to be that keep-alives are simply not supported in tomcat 5.5 http connector? They do seem to work in tomcat6 (+java 6). Thanks, Dan

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• Tomcat web application intermittent freeze

  - by tinny

  I have a Grails web application (just a standard war file) deployed on a Ubuntu 10.10 server running on tomcat 6. My database is postgresql. The problem is that every so often (once or twice a day after inactivity) when I try to log into this web application it just freezes. I can navigate to the login page but when I try and login (first time the DB is hit, might be a clue..?) the application just freezes indefinitely, no 500 response code... the browser just waits and waits. I followed the instructions detailed here because the problem described sounded the same as mine. My GC logging showed no long running GC, all sub sec. When the application freezes a jmap heap output is... using parallel threads in the new generation. using thread-local object allocation. Concurrent Mark-Sweep GC Heap Configuration: MinHeapFreeRatio = 40 MaxHeapFreeRatio = 70 MaxHeapSize = 536870912 (512.0MB) NewSize = 21757952 (20.75MB) MaxNewSize = 87228416 (83.1875MB) OldSize = 65404928 (62.375MB) NewRatio = 7 SurvivorRatio = 8 PermSize = 21757952 (20.75MB) MaxPermSize = 85983232 (82.0MB) Heap Usage: New Generation (Eden + 1 Survivor Space): capacity = 19595264 (18.6875MB) used = 11411976 (10.883308410644531MB) free = 8183288 (7.804191589355469MB) 58.23843965562291% used Eden Space: capacity = 17432576 (16.625MB) used = 9249296 (8.820816040039062MB) free = 8183280 (7.8041839599609375MB) 53.05754009046053% used From Space: capacity = 2162688 (2.0625MB) used = 2162680 (2.0624923706054688MB) free = 8 (7.62939453125E-6MB) 99.99963008996212% used To Space: capacity = 2162688 (2.0625MB) used = 0 (0.0MB) free = 2162688 (2.0625MB) 0.0% used concurrent mark-sweep generation: capacity = 101556224 (96.8515625MB) used = 83906080 (80.01907348632812MB) free = 17650144 (16.832489013671875MB) 82.62032270912317% used Perm Generation: capacity = 85983232 (82.0MB) used = 62866832 (59.95448303222656MB) free = 23116400 (22.045516967773438MB) 73.1152232100324% used Anyone know what "From Space:" is? Any ideas on further fault finding ideas? I dont have much experience with this type of fault finding.

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• Advance DNS - Redirecting Emails to new webhost

  - by Martin

  I am not to sure if this question belongs here but I will surely find out soon enough. I have two web hosts (Not sure why it has been setup this way but it has). I do not want to use the original web host to handle the emails as the Data that we get from them is 500 mb which is already full with hosting the website. The second web host has an unlimited data plan and was created so we could use this host for the email accounts. Now the problem is I have reset the Advance DNS Zone records on both accounts and I am not sure what they were before. (Silly me should have taken a backup of how it was setup before hand I know) Emails were working before and going to the second hosts server now they are going to the first host but it has no email addresses setup for use so all emails are bouncing saying that the address does not exist. Host 1 IP: 192.185.96.110 Host 2 IP: 27.54.88.66 So far I have changed the Advanced DNS Zone record on Host 1 with the following: A Record: mail.australisinstitute.qld.edu.au - 27.54.88.66 I have not made any changes on Host 2 and both hosts have the default MX Records. If I need to provide any more information I can but I just hope someone can decipher what I have said haha. Cheers in advance!

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• Installing/enabling PHP Pecl Intl extension on CentOs 5

  - by Marijn Huizendveld

  Original question: I'm having trouble installing the PHP Pecl Intl extension on my CentOs 5 machine. After installing both icu and libicu with the following commands: $ yum install icu $ yum install libicu I tried to install the Intl extension like so: $ /usr/bin/pecl install intl I selected to search for the default location for the ICU libraries and header files. It ends up crashing like this: checking whether to enable internationalization support... yes, shared checking for icu-config... no checking for location of ICU headers and libraries... not found configure: error: Unable to detect ICU prefix or no failed. Please verify ICU install prefix and make sure icu-config works. ERROR: `/tmp/pear/temp/intl/configure --with-icu-dir=DEFAULT' failed update After successfully installing the development version of icu as suggested by RusAlex (thanks RusAlex) like so: $ yum install libicu-devel I ran into a new problem which I also encountered locally the following command: $ /usr/bin/pecl install intl now produces this error: /private/tmp/pear/temp/intl/collator/collator_class.c:92: error: duplicate 'static' /private/tmp/pear/temp/intl/collator/collator_class.c:96: error: duplicate 'static' /private/tmp/pear/temp/intl/collator/collator_class.c:101: error: duplicate 'static' /private/tmp/pear/temp/intl/collator/collator_class.c:107: error: duplicate 'static' make: *** [collator/collator_class.lo] Error 1 ERROR: `make' failed It appears to have something to do with PHP 5.3 being bundled with Intl already. But how can I enable this extension, if I look in my PHP Info than I cannot find any reference to it...

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• Opening an existing process

  - by Grasper

  I am using Eclipse in Linux through a remote connection (xrdp). My internet got disconnected, so I got disconnected from the server while eclipse was running. Now I logged in again, and I do the "top" command I can see that eclipse is running and still under my user name. Is there some way I can bring that process back into my view (I do not want to kill it because I am in the middle of checking in a large swath of code)? It doesnt show up on the bottom panel after I logged in again. Here is the "top" output: /home/mclouti% top top - 08:32:31 up 43 days, 13:06, 29 users, load average: 0.56, 0.79, 0.82 Tasks: 447 total, 1 running, 446 sleeping, 0 stopped, 0 zombie Cpu(s): 6.0%us, 0.7%sy, 0.0%ni, 92.1%id, 1.1%wa, 0.1%hi, 0.1%si, 0.0%st Mem: 3107364k total, 2975852k used, 131512k free, 35756k buffers Swap: 2031608k total, 59860k used, 1971748k free, 817816k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 13415 mclouti 15 0 964m 333m 31m S 21.2 11.0 83:12.96 eclipse 16040 mclouti 15 0 2608 1348 888 R 0.7 0.0 0:00.12 top 31395 mclouti 15 0 29072 20m 8524 S 0.7 0.7 611:08.08 Xvnc 2583 root 20 0 898m 2652 1056 S 0.3 0.1 139:26.82 automount 28990 postgres 15 0 13564 868 304 S 0.3 0.0 26:33.36 postgres 28995 postgres 16 0 13808 1248 300 S 0.3 0.0 6:54.95 postgres 31440 mclouti 15 0 3072 1592 1036 S 0.3 0.1 6:01.54 gam_server 1 root 15 0 2072 524 496 S 0.0 0.0 0:03.00 init 2 root RT -5 0 0 0 S 0.0 0.0 0:04.53 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root RT -5 0 0 0 S 0.0 0.0 0:01.72 migration/1 6 root 34 19 0 0 0 S 0.0 0.0 0:00.07 ksoftirqd/1 7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1 8 root RT -5 0 0 0 S 0.0 0.0 0:04.33 migration/2 9 root 34 19 0 0 0 S 0.0 0.0 0:00.05 ksoftirqd/2

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• Installing WindowsAuthentication breaks authentication / web.config?

  - by Ian Quigley

  I have a clean Windows 2008 R2 box (on a VM) and have installed IIS 7.5 with default options. I then copied a website to it (from Windows 7, IIS 7) and after a little tweaking the website is working fine. The website is currently using and working with Anonymous Authentication. I have gone back to the Windows Components/Sever Manager, Roles - Security and ticked and installed Windows Authentication. When I check my server in IIS (top level above sites) - Authentication, I see Anonymous Authentication (enabled) ASP.NET Impersonation (disabled) Forms Authentication (disbaled) Windows Authentication (enabled) When I check my default website - Authentication, I see as above but "Retrieving status" and an error dialog saying There was an error while performing this operation. Details: Filename c:\inetpub\wwwroot\screwturnwiki\web.config Line number: 96 Error: This configuration section cannot be used in this path. This happens when the section is being locked at the parent level. Locking is either by default (overriderModeDefault="Deny"), or set explicity by a location tag with overrideMode="Deny" or the legacy allowOverride="False". I have tried hand editing the web.config with no success. UN-installing Windows Authentication happily returns my site to working with Anonymous Authentication, and allows me to enable/disable these three options. FYI. I am using ScrewTurnWiki with the Active Directory plug in.

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• How do I stop panning on a monitor that supports a specific resolution?

  - by IronicMuffin

  Hi all, I've been battling this for a few days now. Any and all help is appreciated. I have a planar monitor with a native res of 1280x1024. At one point, I had used PowerStrip to override "something" and set the res to 1600x1200, and it worked great. I then installed new intel graphics drivers for my 86895g (or w/e model) video card, which screwed up whatever settings I had. If I set it to 1600x1200 this time, it would set the res correctly, but give me a 1280x1024 viewport and the screen would pan when the mouse got to the edges of the screen. Absolutely not useful. Ok, so I was limited to 1280x1024 now. W/e. Now...enter new video card with two video ports. I have two monitors now and the latest nVidia drivers. I decide to try to get dual 1600x1200 going...ended up screwing the original monitor up so much now that it's at 1280x1024, with a 1024x768 viewport and panning! Absolutely not usable now. So what I need, and I can't seem to find on any forums, is help doing one or more of the following: Clearing out all monitor/edid info out of the windows registry without corrupting the registry. Actually correctly override the EDID values and get my sweet res back. Some other way of getting back to at least dual 1280x1024 with NO panning. Note: My device manager shows 4 monitors for some reason. My registry shows entries for all sorts of monitors that have been hooked up to the machine over the years. It's making it difficult to debug. Experience with PowerStrip would be helpful. I've been mucking with Phoenix EDID designer and MonInfo as well, but I'm stumbling around in the dark with these. Windows XP SP2 nVidia GeForce 6200 nVidia drivers: v258.96 Monitor: Planar PL 1910M Thanks!

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• When connecting to PPTP Centos via Windows 7 VPN, I get error 2147943625

  - by Charlie Dyason

  The remote computer refused the network connection. phrase has been my arch enemy for the past week now I recently "bought" a VPS server, I gave up trying to configure it with OpenVPN, all the issues were making me lose my mind, so I tried the easier way with pptp, but i figure, both are leading to a dead end... I followed this post (many others too but this is the unlucky one), http://blog.secaserver.com/2011/10/install-vpn-pptp-server-centos-6/ and it all goes well with the setup, however, I run into this error when connecting to the VPN in Windows 7 here is a pic of the error: Image So I do not know what I have done wrong... When connecting, Code: Select all netstat -apn | grep -w 1723 before connecting: netstat -apn |grep -w 1723 tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN 1137/pptpd after the error came I tried again: netstat -apn |grep -w 1723 tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN 1137/pptpd tcp 0 0 41.185.26.238:1723 41.13.212.47:49607 TIME_WAIT - iptables: # Generated by iptables-save v1.4.7 on Fri Nov 1 18:14:53 2013 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [63:8868] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i eth0 -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 1723 -j ACCEPT -A INPUT -i eth0 -p gre -j ACCEPT -A FORWARD -i ppp+ -o eth0 -j ACCEPT -A FORWARD -i eth0 -o ppp+ -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT # Completed on Fri Nov 1 18:14:53 2013 # Generated by iptables-save v1.4.7 on Fri Nov 1 18:14:53 2013 *nat : PREROUTING ACCEPT [96:12732] : POSTROUTING ACCEPT [0:0] : OUTPUT ACCEPT [31:2179] -A POSTROUTING -o eth0 -j MASQUERADE COMMIT # Completed on Fri Nov 1 18:14:53 2013 options.pptpd the only changes was the require-mppe # BSD licensed ppp-2.4.2 upstream with MPPE only, kernel module ppp_mppe.o # {{{ refuse-pap refuse-chap refuse-mschap # Require the peer to authenticate itself using MS-CHAPv2 [Microsoft # Challenge Handshake Authentication Protocol, Version 2] authentication. require-mschap-v2 require-mppe # Require MPPE 128-bit encryption # (note that MPPE requires the use of MSCHAP-V2 during authentication) require-mppe-128 # }}} I check the iptables, everything is normal, all INPUTs, etc are before rejects, username and password I also checked in chap-secrets file, I am really puzzled...

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• Ubuntu 12.04 suddenly cannot connect to WPA2/WPA Personal protected connection. Windows 7 can

  - by d4ryl3

  I have a laptop with Windows 7 and Ubuntu 12.04. I have a Cisco E1200 and when I set it up, it created 2 SSIDs. Let's name them: MyConnection (WPA/WPA2 personal), and MyConnection-Guest (no authentication, guest password entered via web browser). I had no problem connecting to MyConnection before, either in Windows 7 and Ubuntu. But now, I can't access MyConnection on Ubuntu. It just says "connecting..." then disconnects after a while. But I'm able to access the internet (on Ubuntu) when I connect to MyConnection-Guest. MAC filtering is off (even if it's on its MAC address is in the white list). Any idea why I'm unable to connect to MyConnection in Ubuntu? Thanks. Update: My Ubuntu installation can connect to ANY WiFi connection (WPA/WEP/no auth), except for MyConnection. Update2: This is what "The not so easy way" returned: Initializing interface 'eth1' conf '/etc/wpa_supplicant.conf' driver 'default' ctrl_interface 'N/A' bridge 'N/A' Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf' Reading configuration file '/etc/wpa_supplicant.conf' Priority group 0 id=0 ssid='MyConnection' id=1 ssid='MyConnection' id=2 ssid='MyConnection' id=3 ssid='MyConnection' WEXT: cfg80211-based driver detected SIOCGIWRANGE: WE(compiled)=22 WE(source)=21 enc_capa=0xf capabilities: key_mgmt 0xf enc 0xf flags 0x0 netlink: Operstate: linkmode=1, operstate=5 Own MAC address: xx:xx:xx:xx:xx:xx wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0 wpa_driver_wext_set_key: alg=0 key_idx=4 set_tx=0 seq_len=0 key_len=0 ioctl[SIOCSIWENCODEEXT]: Invalid argument Driver did not support SIOCSIWENCODEEXT wpa_driver_wext_set_key: alg=0 key_idx=5 set_tx=0 seq_len=0 key_len=0 ioctl[SIOCSIWENCODEEXT]: Invalid argument Driver did not support SIOCSIWENCODEEXT wpa_driver_wext_set_countermeasures RSN: flushing PMKID list in the driver Setting scan request: 0 sec 100000 usec WPS: UUID based on MAC address - hexdump(len=16): 16 3b d8 47 9e 24 50 89 96 16 6d 66 35 f3 58 37 EAPOL: SUPP_PAE entering state DISCONNECTED EAPOL: Supplicant port status: Unauthorized EAPOL: KEY_RX entering state NO_KEY_RECEIVE EAPOL: SUPP_BE entering state INITIALIZE EAP: EAP entering state DISABLED EAPOL: Supplicant port status: Unauthorized EAPOL: Supplicant port status: Unauthorized Added interface eth1

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• Server getting overloaded

  - by taras

  Hi, I have 2 setups tomcat5.5.20 on Redhat and mysql 4.1.22 on another Redhat server. Recently my webserver started getting overloaded up to 80-90%. After checking i found repeating errors(each seconds) in catalina.out. Can it cause the server overload or where else can be the root of the problem ? catalina.out: DBCP object created 2010-12-22 13:33:12 by the following code was never closed: java.lang.Exception at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.init(AbandonedTrace.java:96) i have to restart tomcat once a day when server load reaches 80-90%. Also catalina.out file is growing too fast which every few hours need to clear the logs. My datasource config: <bean id="myDataSource" class="org.apache.tomcat.dbcp.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"> <value>com.mysql.jdbc.Driver</value> </property> jdbc:mysql://XXX/XXX?autoReconnect=true 20 20 <property name="maxIdle"> <value>50</value> </property> <property name="maxActive"> <value>50</value> </property> <property name="removeAbandoned"> <value>false</value> </property> <property name="removeAbandonedTimeout"> <value>2400</value> </property> <property name="username"> <value>XXX</value> </property> <property name="password"> <value>XXX</value> </property> </bean> Thanks for any direction.

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• High CPU usage in my digitalocean droplet

  - by Ibrahim Azhar Armar

  I am experiencing high CPU usage here is the stats i got from server, the consumption after every restart in 15 minutes go upto 100%, what could go wrong? I have a wordpress copy installed on the server which does not have much traffic, here is the stats that i got from using top command in server. top - 11:46:02 up 12 min, 3 users, load average: 40.89, 16.03, 6.11 Tasks: 132 total, 41 running, 91 sleeping, 0 stopped, 0 zombie Cpu(s): 24.3%us, 61.5%sy, 0.0%ni, 0.0%id, 4.0%wa, 0.0%hi, 0.0%si, 10.2%st Mem: 2050896k total, 1988656k used, 62240k free, 284k buffers Swap: 0k total, 0k used, 0k free, 4712k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 31 root 20 0 0 0 0 R 39 0.0 1:35.53 kswapd0 899 root 20 0 15988 172 0 S 14 0.0 0:05.00 irqbalance 418 syslog 20 0 243m 600 0 S 13 0.0 0:06.85 rsyslogd 944 mysql 20 0 1320m 53m 0 S 12 2.7 0:21.15 mysqld 2357 root 20 0 17344 532 164 R 11 0.0 0:14.27 top 960 root 20 0 246m 3816 0 S 3 0.2 0:08.18 php5-fpm 2431 www-data 20 0 344m 64m 908 R 2 3.2 0:04.23 apache2 2435 www-data 20 0 304m 63m 836 R 2 3.2 0:03.43 apache2 2413 www-data 20 0 349m 63m 920 R 2 3.2 0:07.51 apache2 2465 www-data 20 0 349m 64m 944 R 2 3.2 0:05.04 apache2 2518 www-data 20 0 307m 41m 1204 R 2 2.1 0:01.37 apache2 2406 www-data 20 0 346m 56m 1144 R 2 2.8 0:03.76 apache2 2456 www-data 20 0 345m 55m 1184 R 2 2.8 0:02.67 apache2 2373 www-data 20 0 351m 63m 784 R 2 3.2 0:11.09 apache2 2439 www-data 20 0 306m 35m 916 R 2 1.8 0:02.51 apache2 2450 www-data 20 0 345m 55m 1088 R 2 2.8 0:02.96 apache2 2486 www-data 20 0 299m 10m 876 R 2 0.5 0:01.19 apache2 2523 www-data 20 0 300m 27m 796 R 2 1.4 0:00.99 apache2

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• MySQL is killing the server IO.

  - by OneOfOne

  I manage a fairly large/busy vBulletin forums (running on gigenet cloud), the database is ~ 10 GB (~9 milion posts, ~60 queries per second), lately MySQL have been grinding the disk like there's no tomorrow according to iotop and slowing the site. The last idea I can think of is using replication, but I'm not sure how much that would help and worried about database sync. I'm out of ideas, any tips on how to improve the situation would be highly appreciated. Specs : Debian Lenny 64bit ~12Ghz (6 cores) CPU, 7520gb RAM, 160gb disk. Kernel : 2.6.32-4-amd64 mysqld Ver 5.1.54-0.dotdeb.0 for debian-linux-gnu on x86_64 ((Debian)) Other software: vBulletin 3.8.4 memcached 1.2.2 PHP 5.3.5-0.dotdeb.0 (fpm-fcgi) (built: Jan 7 2011 00:07:27) lighttpd/1.4.28 (ssl) - a light and fast webserver PHP and vBulletin are configured to use memcached. MySQL Settings : [mysqld] key_buffer = 128M max_allowed_packet = 16M thread_cache_size = 8 myisam-recover = BACKUP max_connections = 1024 query_cache_limit = 2M query_cache_size = 128M expire_logs_days = 10 max_binlog_size = 100M key_buffer_size = 128M join_buffer_size = 8M tmp_table_size = 16M max_heap_table_size = 16M table_cache = 96 Other : > vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 9 0 73140 36336 8968 1859160 0 0 42 15 3 2 6 1 89 5 > /etc/init.d/mysql status Threads: 49 Questions: 252139 Slow queries: 164 Opens: 53573 Flush tables: 1 Open tables: 337 Queries per second avg: 61.302. Edit Additional info.

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• This .mpg video clip doesn't play well

  - by Roey

  I've installed K-lite mega codec pack v6.9.0 with playback essentials without player. My default and only media player is windows media player. here are the clip's media info: General Complete name : D:\Users\Roey\Downloads\B384MV.mpg Format : MPEG-PS File size : 273 MiB Duration : 4mn 59s Overall bit rate : 7 643 Kbps Video ID : 224 (0xE0) Format : MPEG Video Format version : Version 2 Format profile : Main@High Format settings, BVOP : No Format settings, Matrix : Default Format settings, GOP : M=1, N=15 Duration : 4mn 57s Bit rate mode : Variable Bit rate : 7 363 Kbps Nominal bit rate : 9 000 Kbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 25.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.142 Stream size : 261 MiB (96%) Audio ID : 192 (0xC0) Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Mode : Joint stereo Duration : 4mn 59s Bit rate mode : Constant Bit rate : 128 Kbps Channel(s) : 2 channels Sampling rate : 44.1 KHz Compression mode : Lossy Stream size : 4.56 MiB (2%) Menu When I play it there is no sound (just a little "kahhhh" noise every 10-20 seconds) and the frames are moving very slow - it "jumps" frames. A blue tray icon [FFa] "ffdshow audio decoder" pops with the following details: Input:MP3, stereo, 44100 Hz (libavocodec) Output:PCM, stereo, 44100 Hz, 16-bit integer Any help will be much appreciated. Thanks

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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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• Configuring SASL support in libmemcached

  - by John Keyes

  I'm trying to build libmemcached with SASL support on OS X Mountain Lion. I have built memcached (1.4.15) with SASL support: $ memcached -S -vv Initialized SASL. slab class 1: chunk size 96 perslab 10922 ... slab class 42: chunk size 1048576 perslab 1 <17 server listening (binary) <18 server listening (binary) <19 send buffer was 9216, now 3728270 <20 send buffer was 9216, now 3728270 <19 server listening (udp) <20 server listening (udp) ... I am trying to build libmemcached with SASL support too. I have tried the following: $ ./configure --prefix=/usr/local \ --with-memcached-sasl=/usr/local/bin/memcached ... $ ./configure --prefix=/usr/local \ --with-memcached-sasl="/usr/local/bin/memcached -S" ... But the resulting configuration summary is the same for both: Configuration summary for libmemcached version 1.0.11 * Installation prefix: /usr/local * System type: apple-darwin12.2.0 * Host CPU: x86_64 * C Compiler: i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00) * C Flags: -O2 -Werror -Wall -Wextra -std=c99 -Wbad-function-cast -Wmissing-prototypes -Wnested-externs -Woverride-init * C++ Compiler: i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00) * C++ Flags: -O2 -Werror -Wall -Wextra -Wpragmas -D_FORTIFY_SOURCE=2 -Waddress -Wchar-subscripts -Wcomment -Wctor-dtor-privacy -Wfloat-equal -Wformat=2 -Wmissing-field-initializers -Wmissing-noreturn -Wnon-virtual-dtor -Wnormalized=id -Woverloaded-virtual -Wpointer-arith -Wredundant-decls -Wshadow -Wshorten-64-to-32 -Wsign-compare -Wstrict-overflow=1 -Wswitch-enum -Wundef -Wunused-variable -Wwrite-strings -fwrapv -ggdb * CPP Flags: -I/usr/local/include * Assertions enabled: no * Debug enabled: no * Warnings as failure: no * SASL support: Am I doing something incorrectly? Thanks.

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• Top cpu% analyis

  - by user111196

  I would like the know in what cpus % can be considered in save range and also load average? Which indication will give signal something is wrong with the server? top - 22:55:51 up 3 days, 6:39, 1 user, load average: 0.53, 0.43, 0.37 Tasks: 229 total, 2 running, 227 sleeping, 0 stopped, 0 zombie Cpu0 : 16.2%us, 0.7%sy, 0.0%ni, 82.8%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Cpu1 : 10.5%us, 0.7%sy, 0.0%ni, 88.5%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Cpu2 : 9.0%us, 0.0%sy, 0.0%ni, 91.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.3%us, 0.3%sy, 0.0%ni, 99.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 1.0%us, 0.0%sy, 0.0%ni, 99.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 44.8%us, 2.6%sy, 0.0%ni, 37.0%id, 0.0%wa, 9.4%hi, 6.2%si, 0.0%st Cpu6 : 3.0%us, 0.0%sy, 0.0%ni, 96.7%id, 0.0%wa, 0.0%hi, 0.4%si, 0.0%st Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16468596k total, 2423908k used, 14044688k free, 200172k buffers

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• Certificates required for WHQL-certified drivers

  - by Kasius

  The 64-bit Windows 7 image that we deploy to machines at our site does not contain all of the certificates included on a default Windows image. Automatic root certificate installation is also disabled per policy from higher in the organization. We have had a lot of trouble installing many WHQL-certified drivers from reputable companies (ex. HP, Lexmark, Dell, etc.), and I hypothesize that a required certificate is missing from one of the certificate stores on the machine. The error we typically get is: The driver cannot be installed because it is either not digitally signed or not signed in the appropriate manner. I know that it is signed. A .CAT file is included, and it has the following tree from top to bottom: Microsoft Root Authority (thumbprint a4 34 89 15 9a 52 0f 0d 93 d0 32 cc af 37 e7 fe 20 a8 b4 19) Microsoft Windows Hardware Compatibility PCA (thumbprint 93 b8 d8 82 0a 32 db 20 a5 ea b6 8d 86 ad 67 8e fa 14 ea 41) Microsoft Windows Hardware Compatibility Publisher (thumprint b0 50 45 45 42 4e be 2c 16 2f 62 5b bf 5a e6 9b 96 bf 0b 0b) What certificates are required to install WHQL-certified drivers? Is it possibly something other than certificates? Thanks! NOTE: I have posted this question on Technet as well, but honestly, I've never had a lot of luck posting questions on the Technet forums.

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• Prevent Outlook 2010 Insert Picture resizing image

  - by Rup

  When I "Insert Picture" a JPEG in Outlook 2010 it automatically resizes the image and, I think, recompresses it too. I realise this would be useful for photographs or for people who try to email 1MB BMPs but I would like to email around an image at the original pixel size without recompression. Is there a way to turn this off, or better still choose settings for each image insert? I found this page in the Office help. It's for Word, PowerPoint and Excel not Outlook but points you at File, Options, Advanced, Image Settings. There's no equivalent section in Outlook. I know Outlook uses Word as its editor so I've looked at Word's settings but there isn't an 'original size' here: there's only 'turn off image recompression' and pick target DPI from 96, 150, 220. I guess Office is finding a DPI value in the JPEG file and scaling it up or down to match this setting. I can't find an equivalent option in Outlook's options menu but there's so many settings and pop-up dialogs I may have missed something. Picture Format, Reset image size resets the image to the rescaled version, not the original. I can't see a way to edit a pixel value into size values in the image properties after insert. Thanks! I realise I can probably achieve this by editing the image metadata in PhotoShop elements or similar but there ought to be a way without editing the file? This is new behaviour in Outlook 2010; 2007 didn't do this.

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• fwbuilder/iptables manually scripted + autogenerated rules at startup?

  - by Jakobud

  Fedora 11 Our previous IT-guy setup iptable rules on our firewall in a way that is confusing me and he didn't document any of it. I was hoping someone could help me make some sense of it. The iptables service is obviously starting at startup, but the /etc/sysconfig/iptables file was untouched (default values). I found in /etc/rc.local he was doing this: # We have multiple ISP connections on our network. # The following is about 50+ rules to route incoming and outgoing # information. For example, certain internal hosts are specified here # to use ISP A connection while everyone else on the network uses # ISP B connection when access the internet. ip rule add from 99.99.99.99 table Whatever_0 ip rule add from 99.99.99.98 table Whatever_0 ip rule add from 99.99.99.97 table Whatever_0 ip rule add from 99.99.99.96 table Whatever_0 ip rule add from 99.99.99.95 table Whatever_0 ip rule add from 192.168.1.103 table ISB_A ip rule add from 192.168.1.105 table ISB_A ip route add 192.168.0.0/24 dev eth0 table ISB_B # etc... and then near the end of the file, AFTER all the ip rules he just declared, he has this: /root/fw/firewall-rules.fw He's executing the firewall rules file that was auto-generated by fwbuilder. Some questions Why is he declaring all these ip rules in rc.local instead of declaring them in fwbuilder like all the other rules? Any advantage or necessity to this? Or is this just a poorly organized way to implement firewall rules? Why is he declaring ip rules BEFORE executing the fwbuilder script? I would assume that one of the first things the fwbuilder script does it get rid of any existing rules before declaring all the new ones. Am I wrong about this? If that was the case, the fwbuilder script would basically just delete all the ip rules that were defined in rc.local. Does this make any sense? Why is he executing all this stuff at startup in rc.local instead of just using iptables-save to keep the firewall settings at /etc/sysconfig/iptables that will get implemented at runtime?

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• IP routing Solaris 9 access the internet from local network

  - by help_me

  I am trying to configure the NICS on the Solaris Sparc server. My problem lies in getting out to the "Internet" from the local network. I have requested the NIC to receive a DHCP server address #ifconfig -interface dhcp start. If anyone could guide me as to what I need to do next. I am not able to ping 4.2.2.2 or access the internet. Much appreciated, thank you #uname -a SunOS dev 5.9 Generic_122300-59 sun4u sparc SUNW,Sun-Fire-V210 ifconfig -a lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 bge0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2 inet 10.100.0.3 netmask ffffc000 broadcast 10.100.63.255 bge0:2: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2 inet 10.100.0.22 netmask ffffc000 broadcast 10.100.63.255 bge3: flags=1004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 1500 index 12 inet 169.14.60.37 netmask fffffe00 broadcast 169.14.61.255 cat /etc/defaultrouter 10.100.0.254 169.14.60.1 cat /etc/resolv.conf nameserver 169.14.96.73 nameserver 169.10.8.4 netstat -rn Routing Table: IPv4 Destination Gateway Flags Ref Use Interface -------------------- -------------------- ----- ----- ------ --------- 169.14.60.37 169.14.60.1 UGH 1 0 169.14.60.0 169.14.60.37 U 1 18 bge3 10.100.0.0 10.100.0.3 U 1 34940 bge0 10.100.0.0 10.100.0.22 U 1 0 bge0:2 224.0.0.0 10.100.0.3 U 1 0 bge0 default 10.100.0.254 UG 1 111 default 169.14.60.1 UG 1 26 127.0.0.1 127.0.0.1 UH 10 59464 lo0 bash-2.05$ sudo ndd -get /dev/ip bge0:ip_forwarding 1 bash-2.05$ sudo ndd -get /dev/ip bge3:ip_forwarding 1 bash-2.05$ sudo ndd -get /dev/ip ip_forwarding 1

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• How can I setup OpenVPN with IPv4 and IPv6 using a tap device?

  - by Lekensteyn

  I've managed to setup OpenVPN for full IPv4 connectivity using tap0. Now I want to do the same for IPv6. Addresses and network setup (note that my real prefix is replaced by 2001:db8): 2001:db8::100:0:0/96 my assigned IPv6 range 2001:db8::100:abc:0/112 OpenVPN IPv6 range 2001:db8::100:abc:1 tap0 (on server) (set as gateway on client) 2001:db8::100:abc:2 tap0 (on client) 2001:db8::1:2:3:4 gateway for server Home laptop (tap0: 2001:db8::100:abc:2/112 gateway 2001:db8::100:abc:1/112) | | | (running Kubuntu 10.10; OpenVPN 2.1.0-3ubuntu1) | wifi | | router | | OpenVPN INTERNET | eth0 | /tap0 VPS (eth0:2001:db8::1:2:3:4/64 gateway 2001:db8::1) (tap0: 2001:db8::100:abc:1/112) (running Debian 6; OpenVPN 2.1.3-2) The server has both native IPv4 and IPv6 connectivity, the client has only IPv4. I can ping6 to and from my server over OpenVPN, but not to other machines (for example, ipv6.google.com). net.ipv6.conf.all.forwarding is set to 1, I've tried disabling net.ipv6.conf.all.accept_ra as well, without luck. Using tcpdump on both the server and client, I can see that packets are actually transferred over tap0 to eth0. The router (2001:db8::1) send a neighbor solicitation for the client (2001:db8::100:abc:2) to eth0 after it receives the ICMP6 echo-request. The server does not respond to that solicitation, which causes the ICMP6 echo-request not be routed to the destination. How can I make this IPv6 connection work?

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