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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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• PowerConnect 3548p SNTP and web interface not working

  - by Force Flow

  I have been unable to get SNTP and access to the web interface working properly on a Dell PowerConnect 3548p. In the logs, this message appears over and over again: 04-Jan-2000 20:19:29 :%MNGINF-W-ACL: Management ACL drop packet received on interface Vlan 172 from 172.17.0.3 to 172.18.0.10 protocol 17 service Snmp 172 is the management vlan. 172.17.0.3 is the DNS server 172.18.0.10 is the switch's IP address. The DNS server and the switch are located on different subnets and separated by routers. I am unable to access the web interface of the switch from the 172.17.x.x subnet. I can only access the web interface of the switch if I am accessing it from the 172.18.x.x subnet. There is also a managed linksys switch on the 172.18.x.x subnet on the 172 vlan, which has no problem with SNTP. I can also access it from the 172.17.x.x network. So, it stands to reason that this is not a firewall or routing issue, but with the 3548p switch. I suspect the issue is with management permissions/ACLs on the 3348p switch, but that's about as much as I've been able to determine so far. Any ideas?

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• Inactive users in windows server after some time according to first login instead of defining a solid expiration date

  - by smhnaji

  We want to give access to some Windows Server users so they can remotely have access to our server and download from a special folder of the server. The licenses we give to users, are time base. There should be 1 month, 2 month, ..., 1 year, ... licenses. CURRENT SITUATION (WHAT I DON'T WANT): When users are created and added to the OS, a solid expiration date is given. WHAT I WANT: Users' expiration date should be calculated automatically after first login. The user might not need his account right when purchases the license. In another words: When a license of the user we create is purchased at Jan 1st, he should use the license until Feb 1st. No matter whether he really logs in or not. He cannot come Feb 5th and begin using his license because that has expired then. What I want is that when he comes at Feb 5th and begins using, the license update until March 5th. CLARIFICATION (Update after MDMarra's comment) Working environment is Windows Server 2012. By the word 'user', I mean Native Windows Server Users. Whenever a new person purchases a license with me, I create them manually using net user command like this: net user ali pass /add /expires:2013-12-25

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• /usr/bin/install hangs, apparently due to SELinux

  - by Cooper

  I'm trying to use the GNU coreutils install utility, however it is hanging: /usr/bin/install -v test_file test_dir/ `test_file' -> `test_dir/test_file I see the same behavior whether I run as a normal user, or root/sudo. I ran an strace -f, and this is the end of the output: ... read(4, "<username>\t-d\tsystem_u:object_r:ho"..., 4096) = 2197 <0.000012> brk(0x6e3b1000) = 0x6e3b1000 <0.000009> mmap(NULL, 29138944, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abd831ae000 <0.000014> munmap(0x2abd815dd000, 29138944) = 0 <0.003466> The read() is reading from /etc/selinux/targeted/contexts/files/file_contexts.homedirs, apparently successfully. It appears that the process is hanging right after the munmap, but continues to eat 100% CPU. My two questions are: 1) Any good way to see what is going on with the process? I'm currently too lazy to compile a debug version of install I can run gdb on - but a strong suggestion in an answer here may motivate me to do so if needed. 2) Any idea what the SELinux issue could be? I'm not too familiar with SELinux. Additional info of possible relevance: # ls -Z drwxr-xr-x my_user 7001 user_u:object_r:user_home_t test_dir -rw-r--r-- my_user 7001 user_u:object_r:user_home_t test_file # id ... context=user_u:system_r:unconfined_t # uname -a Linux hostname 2.6.18-238.1.1.el5 #1 SMP Tue Jan 4 13:32:19 EST 2011 x86_64 x86_64 x86_64 GNU/Linux I am suspicious that SELinux + Quest Authentication Services (QAS) is causing the issue. QAS is generally well behaved, but it did cause the /etc/selinux/targeted/contexts/files/file_contexts.homedirs to get quite large (~18k users, @23 lines per user) Update: install -v -Z user_u:object_r:user_home_t file dir/ seems to work. Can anyone suggest why, given that SELinux is in permissive mode (see comments).

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• Apache reverse proxy with VirtualHost not serving a page

  - by Mr Aleph

  I have an Apache reverse proxy set to move requests to a Tomcat Applet. The config is similar to: <VirtualHost 100.100.100.100:80> ProxyPass /AppName/App http://1.1.1.1/AppName/App ProxyPassReverse /AppName/App http://1.1.1.1/AppName/App </VirtualHost> I also have a page called summary.html that exists on 1.1.1.1 as: http://1.1.1.1/AppName/summary.html When I browse directly to it I have no problem viewing it, however if I try to get there via the reverse proxy I get a blank page. Wireshark shows me a 503, but this one is coming from the Apache reverse proxy (IP 100.100.100.100) and not the Tomcat (IP 1.1.1.1). Should I add http://1.1.1.1/AppName/ to the config? How? I tried it but I get a blank page, however this one shows on the URL bar of the browser the internal IP of the Tomcat, so, no go. Help is appreciated. Thanks. EDIT: This is the dump from Wireshark: GET /AppName/ HTTP/1.1 Host: 100.100.100.100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Cache-Control: max-age=0 Accept-Language: en-us Accept-Encoding: gzip, deflate Connection: keep-alive HTTP/1.1 404 Not Found Date: Tue, 30 Jan 2012 09:08:51 GMT Server: Apache Content-Length: 1 Connection: close Content-Type: text/html; charset=iso-8859-1

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• Growing a Linux software RAID5 array

  - by chrismetcalf

  On my home file server, I've got a 1.5TB software RAID5 array, built from four 500gb Western Digital drives. I've got a fifth drive that I usually run as a hot spare (but have out of the array at the moment), but if I can I'd like to add that to the array and grow it to 2TB since I'm running out of space. I Googled for guidance, but there seem to be a lot of differing opinions out there (many of them probably now out-of-date) as to whether or not that is possible and/or smart. What's the right way to go about this, or should I start looking into building a new array with more space? Version details: %> cat /etc/issue Debian GNU/Linux 5.0 \n \l %> uname -a Linux magrathea 2.6.26-1-686-bigmem #1 SMP Sat Jan 10 19:13:22 UTC 2009 i686 GNU/Linux %> /sbin/mdadm --version mdadm - v2.6.7.2 - 14th November 2008 %> cat /proc/mdstat Personalities : [raid1] [raid6] [raid5] [raid4] md1 : active raid1 hdc1[0] hdd1[1] 293033536 blocks [2/2] [UU] md0 : active raid5 sde1[3] sda1[0] sdc1[2] sdb1[1] 1465151808 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

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• Directories shown as files, when sharing a mounted cifs drive

  - by Johan Sigfred Abildskov

  I have an issue where a directory is shown as a file when accessing a samba share ( on Ubuntu 12.10 ) from a Windows machine. The output from ls -ll in the folder on the linuxbox is as follows: chubby@chubby:/media/blackhole/_Arkiv$ ls -ll total 0 drwxrwxrwx 0 jv users 0 Jun 18 2012 _20 drwxrwxrwx 0 jv users 0 Apr 17 2012 _2006 drwxrwxrwx 0 jv users 0 Apr 17 2012 _2007 drwxrwxrwx 0 jv users 0 May 12 2011 _2008 drwxrwxrwx 0 jv users 0 Feb 19 09:53 _2009 drwxrwxrwx 0 jv users 0 Dec 20 2011 _2010 drwxrwxrwx 0 jv users 0 May 8 2012 _2011 drwxrwxrwx 0 jv users 0 Mar 5 11:37 _2012 drwxrwxrwx 0 jv users 0 Feb 28 10:09 _2013 drwxrwxrwx 0 jv users 0 Feb 28 11:18 _Mailarkiv drwxrwxrwx 0 jv users 0 Jan 3 2011 _Praktikanter The entry in /etc/fstab is: # Mounting blackhole //192.168.0.50/kunder/ /media/blackhole cifs uid=jv,gid=users,credentials=/home/chubby/.smbcredentials,iocharset=utf8,file_mode=0777,dir_mode=0777 0 0 When I access the share directly from the NAS on my Windows box, there are no issues. The version of Samba is 3.6.6, but I couldn't find anything in the changelogs that seem relevant. I've tried mounting it in different locations with different permissions, users and groups but I have not made any progress Due to my low reputation on serverfault ( mostly stackoverflow user ) I'm unable to post a screenshot that shows that the directories are shown as files. If I type the full path in explorer, the directory listing works excellently, except for any subdirectories that are then shown as files. Any attack vector for this issue would be greatly appreciated. Please let me know if I have provided insufficient details. Edit: The same share when accessed from a OS X, works perfectly listing the directories as directories. Best Regards!

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• Postfix connects to wrong relay?

  - by Eric

  I am trying to set up postfix on my ubuntu server in order to send emails via my isp's smtp server. I seem to have missed something because the mail.log tells me: Jan 19 11:23:11 mediaserver postfix/smtp[5722]: CD73EA05B7: to=<[email protected]>, relay=new.mailia.net[85.183.240.20]:25, delay=6.2, delays=5.7/0.02/0.5/0, dsn=4.7.0, status=deferred (SASL authentication failed; server new.mailia.net[85.183.240.20] said: 535 5.7.0 Error: authentication failed: ) The relay "new.mailia.net[85.183.240.20]:25" was not set up by me. I use "relayhost = smtp.alice.de". Why is postfix trying to connect to a different server? Here is my main.cf: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = mediaserver alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = mediaserver, localhost.localdomain, , localhost relayhost = smtp.alice.de mynetworks = 127.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all myorigin = /etc/mailname inet_protocols = all sender_canonical_maps = hash:/etc/postfix/sender_canonical smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_password smtp_sasl_security_options = noanonymous Output of postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all inet_protocols = ipv4 mailbox_size_limit = 0 mydestination = mediaserver, localhost.localdomain, , localhost myhostname = mediaserver mynetworks = 127.0.0.0/8 myorigin = /etc/mailname readme_directory = no recipient_delimiter = relayhost = smtp.alice.de sender_canonical_maps = hash:/etc/postfix/sender_canonical smtp_generic_maps = hash:/etc/postfix/generic smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_password smtp_sasl_security_options = noanonymous smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes

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• Software RAID 1 Configuration

  - by Corve

  I have created a software RAID 1 quite some while ago and it always seemed to work for me. However I am not completely sure that I have configured everything right and do not have the experience to check so I would be very grateful for some advice or just verification that all seems right so far. I am using Linux Fedora 20 (32 bit with plans to upgrade to 64bit) The RAID 1 should consist of two 1TB SATA hard drives. This is the output of mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Sun Jan 29 11:25:18 2012 Raid Level : raid1 Array Size : 976761424 (931.51 GiB 1000.20 GB) Used Dev Size : 976761424 (931.51 GiB 1000.20 GB) Raid Devices : 2 Total Devices : 1 Persistence : Superblock is persistent Update Time : Sat Jun 7 10:38:09 2014 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 0 Spare Devices : 0 Name : argo:0 (local to host argo) UUID : 1596d0a1:5806e590:c56d0b27:765e3220 Events : 996387 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 0 1 active sync /dev/sda The RAID is mounted successfully: friedrich@argo:~ ? sudo mount -l | grep md0 /dev/md0 on /mnt/raid type ext4 (rw,relatime,data=ordered) Basically my question are: Why do I only have 1 active device? What does the State removed at bottom mean? Also I noticed some strange error messages that I see on the console on system start and shutdown and always repeating in the background when I switch with Ctrl + Alt + F2: ... ata2: irq_stat 0x00000040 connection status changed ata2: SError: { CommWake DevExch } ata2: COMRESET failed (errno=-32) ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen ata2: irq_stat 0x00000040 connection status changed ata2: SError: { CommWake DevExch } ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen ... Are these errors related to the RAID? Something seems wrong with the SATA devices.. All together the system works (I can read and write to the mounted raid) but I always had these strange errors on startup shutdown (probably always in the background). Thx for your help

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• Rkhunter reports file properties have changed

  - by CountMurphy

  I am running a fully updated LTS copy of Ubuntu server. Today I ran rkhunter (as I do from time to time). This is the output I got: Warning: The file properties have changed: [15:52:25] File: /bin/ps [15:52:25] Current hash: f22991ec93ae966c856d367f42fc3d8a484bd827 [15:52:25] Stored hash : 1892268bf195ac118076b1b0f53e7a637eb6fbb3 [15:52:25] Current inode: 142902 Stored inode: 130894 [15:52:25] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:25] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:33] File: /usr/bin/ldd [15:52:33] Current hash: f1e2ca5aa3a28994e2cebb64c993a72b7d97b28c [15:52:33] Stored hash : 295d9cedb121a5e431a39a6d201ecd7ce5640497 [15:52:33] Current inode: 2236210 Stored inode: 2234359 [15:52:33] Current size: 5280 Stored size: 5279 [15:52:33] Current file modification time: 1331165514 (07-Mar-2012 16:11:54) [15:52:33] Stored file modification time : 1295653965 (21-Jan-2011 15:52:45) Warning: The file properties have changed: [15:52:37] File: /usr/bin/pgrep [15:52:37] Current hash: 3eada9a96760f3e2c9111cfe32901d1432813c1d [15:52:37] Stored hash : ce265d0db9964b173fe5036f703a9b8d66e55df3 [15:52:37] Current inode: 2229646 Stored inode: 2224867 [15:52:37] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:37] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:41] File: /usr/bin/top [15:52:41] Current hash: 6be13737d8b0950cea2f1ae3a46d4af713dbe971 [15:52:41] Stored hash : c7b495ecef3982eeb6f08a511861b1a1ae8775e6 [15:52:41] Current inode: 2229629 Stored inode: 2224862 [15:52:41] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:41] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:53] File: /usr/sbin/cron [15:52:53] Current hash: e783ca973f970aa8a4bf5edc670e690b33914c3d [15:52:53] Stored hash : 4718257a8060736b9058aed025c992f02a74a5a7 [15:52:53] Current inode: 2224719 Stored inode: 2228839 [15:52:54] Current file modification time: 1330965568 (05-Mar-2012 08:39:28) There were also a few other I left out. Has my server been rooted? I am running fail2ban and do monitor failed ssh logins. nothing has come up. Could someone compare these hashes to their copy of Ubuntu Server (lts)? Please tell me these are false positives..... Edit: is something else like rkhunter I can run for a second scan?

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• cant remove index.php from url in codeigniter

  - by Ashiq

  iam new in codeigniter frame work,i want to remove index.php from url and tried many times bt its not working..... here is my .htaccess file RewriteEngine on RewriteBase /test/ RewriteCond $1 !^(index\.php|resources|robots\.txt) RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ test/index.php/$1 [L,QSA] iam also change $config['index_page'] = ''; bt when running this i got an error message... Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator at [email protected] to inform them of the time this error occurred, and the actions you performed just before this error. More information about this error may be available in the server error log. here is my appache error log [Sat Jan 05 16:59:53.265625 2013] [core:error] [pid 3976:tid 1152] [client ] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace. pls help to solve this........ Thanks

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• How to inactive Active Directory users, 1 month after their FIRST LOGIN, instead of defining a solid expiration date

  - by smhnaji

  We want to give access to some Active Directory users, so they can remotely have access to our server and download from a special folder of the server. The licenses we give to users, are time base. There should be 1 month, 2 month, ..., 1 year, ... licenses. CURRENT SITUATION (WHAT I DON'T WANT): When users are created and added to the OS, a solid expiration date is given. WHAT I WANT: Users' expiration date should be calculated automatically after the first login. The user might not need his account right when purchases the license. In other words: When a license of the user we create is purchased at Jan 1st, he should use the license until Feb 1st. No matter whether he really logs in or not. He cannot come Feb 5th and begin using his license because that has expired then. What I want is that when he comes at Feb 5th and begins using, the license update until March 5th. Working environment is Windows Server 2012. By the word 'user', I mean Active Directory Users.

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• Windows-7 Ultimate 64 bit wont connect to my wired/wireless networks.

  - by A302

  Windows 7 Ultimate 64 bit. Everything was working fine & then just stopped working. The nic card Realtek PCIe GBE Family Controller is enabled but does not connect to my router (cables & router ports are good). Wireless Atheros AR5007EG is enabled but the connection is limited (encryption type / key have been verified). A laptop running XP can connect both wired / wireless. SSID is not being broadcast, connect to network if it is not broadcasting is checked. Have checked services.msc for Bonjour & did not see it listed. Network & sharing center does not list any active networks. Device manager lists both devices as functioning properly. Router configuration has not been changed. Virus scan has not found anything. I would like to fix this rather than using Acronis to do a system restore. Thanks in advance for any advice offered in solving this. 26 Jan, the nic card & wireless are working using PCLinux OS Live CD. It appears that the problem is Windows 7 related.

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• What is wrong with my DNS entries?

  - by matheus

  I have some problems with a domain not working as expected. My registrar's controlpanel shows these records for mydomain.eu: www A 111.222.333.444 * A 111.222.333.444 I use the nameservers of my registrar. I get a correct answer if i do dig www.mydomain.eu dig whatever.mydomain.eu I can also ping/visit website etc with those adresses. But, dig mydomain.eu wont resolve to anything. I just get this: ; <<>> DiG 9.6-ESV-R1 <<>> mydomain.eu ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46837 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;mydomain.eu. IN A ;; AUTHORITY SECTION: mydomain.eu. 1799 IN SOA ns1.binero.se. registry.binero.se. 1281647822 3600 240 1209600 3600 ;; Query time: 77 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Thu Jan 6 01:36:31 2011 ;; MSG SIZE rcvd: 83 The same A-record setup work for another domain/server ip, but that domain has other nameservers. What am I missing here?

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• Apache2 403 permission denied on Ubuntu 12.04

  - by skeniver

  I have a sub-directory in my /var/www folder called prod, which is password protected. It was all working fine until I asked my server admin to help me set up allow all access to one particular file. Now the entire folder is just giving me a 403 error. This is the sites-enabled file: <VirtualHost *:80> ServerAdmin [email protected] # Server name ServerName prod.xxx.co.uk DocumentRoot /var/www/prod <Directory /var/www/prod> Options Indexes FollowSymLinks MultiViews +ExecCGI Includes AllowOverride None Order allow,deny AuthType Basic AuthName "Please log in" AuthUserFile /home/ubuntu/.htpasswd Require valid-user </Directory> <Directory /var/www/prod/xxx/cgi-bin/api.pl> Allow from All Satisfy Any </Directory> ScriptAlias /xxx/cgi-bin/ /var/www/prod/xxx/cgi-bin/ ErrorLog ${APACHE_LOG_DIR}/prod.xxx.error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/prod.xxx.access.log combined </VirtualHost> Now he's unsure why this is blocking me out completely. No permissions have been changed, but this is the /var/www/ folder: 4 drwxr-xr-x 2 root root 4096 Jan 3 21:10 images 4 drwxr-sr-x 4 root www-data 4096 Mar 31 14:47 jslib 4 drwxr-xr-x 7 root root 4096 Jun 2 13:00 prod When I try to visit http://prod.xxx.co.uk, I don't get asked for the password; I just get 403'd I hope I've given enough information... Anyone able to spot something he can't?

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• Low-traffic WordPress website on Apache keeps crashing server

  - by OC2PS

  I have recently moved my low-moderate traffic (1000 UAUs, 5000 pageviews on a busy day) website from shared hosting to a Centos 6 64-bit VPS with Apache and cPanel running on 4 quad-core processor (likely oversold) and 3GB memory (Xen). We've had problems from the beginning. The server keeps crashing. It seems PHP keeps expanding till it consumes all the memory and crashes the server. Some folks have suggested that I should abandon Apache/cPanel/PHP/mySQL and go with nginX/Varnish/PHP-FPM/SQLite. But that's just not possible for me as I am not very tech savvy and need a simple GUI like cPanel to be able to manage the mundane management tasks (can't afford to hire system administrator or get fully managed hosting). I have come across several posts discussing optimization of Apache for WordPress. But all of these lead to articles that are pretty dated such as this ~4 year old one from Jan 2009 - http://thethemefoundry.com/blog/optimize-apache-wordpress/ The article is pretty detailed and seems helpful, but I stumble even on the first step. My httpd.conf only has 2 loadmodule commands LoadModule fastinclude_module modules/mod_fastinclude.so LoadModule bwlimited_module modules/mod_bwlimited.so So I go total bust right there. Further, my httpd.conf says Direct modifications to the Apache configuration file may be lost upon subsequent regeneration of the configuration file. To have modifications retained, all modifications must be checked into the configuration system by running: /usr/local/cpanel/bin/apache_conf_distiller I am having trouble finding where to change the modules in WHM. Please can someone help me with updated guidelines on how to optimize Apache for WordPress? Many thanks! P.S. The WordPress installation also has WP Super Cache installed. P.P.S. I also have phpBB, OpenCart, and Menalto Gallery installed.

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• Mysterious swap usage on EC2

  - by rusty

  We're in the middle of a project to move our infrastructure from a co-lo situation into Amazon EC2 and we've noticed some weird memory characteristics of the processes in our setup. Without going into too much detail about the specifics of our processes, we've noticed that on our EC2 instances "top" will show processes using a lot of swap space -- in fact, much greater than the amount of available swap or (if you add it all up) more than the available disk. Here's a sample top output: Mem: 7136868k total, 5272300k used, 1864568k free, 256876k buffers Swap: 1048572k total, 0k used, 1048572k free, 2526504k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND 4121 jboss 20 0 5913m 603m 14m S 0.7 8.7 3:59.90 5.2g java 22730 root 20 0 2394m 4012 1976 S 2.0 0.1 4:20.57 2.3g PassengerHelper 20564 rails 20 0 2539m 220m 9828 S 0.3 3.2 0:23.58 2.3g java 1423 nscd 20 0 877m 1464 972 S 0.0 0.0 0:03.89 876m nscd You can see, for instance, that jboss is reportedly using 5.2 gigs of swap space which is definitely impossible since there's only 1G allocated and none is being used (probably because there's still 1.8G of RAM free). And here's the results of uname -a: Linux xxx.yyy.zzz 2.6.35.14-106.53.amzn1.x86_64 #1 SMP Fri Jan 6 16:20:10 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux We're running an AMI based off of the default Amazon Linux AMI (Amazon Linux AMI release 2011.09, so some RHEL5 and RHEL 6) with not too many customizations and definitely no kernel-level customizations. Something here tells me that on this particular kernel/distribution, the reporting of swap or maybe even total memory usage isn't what it appears to be... Any help would be appreciated!

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• Nginx Removes the index.php from URL

  - by codeHead

  I have a codeigniter php application on nginx. It works as expected on Apache but after moving to nginx, I noticed that the index.php is automatically removed from the URL in all my links. Infact when I try using index.php it does not go to the desired URL but gets redirected to my default controller. below is a coopy of my nginx.conf file. server{ listen 80; server_name mydomainname.com; root /var/www/domain/current; # index index.php; error_log /var/log/nginx/error.log; access_log /var/log/nginx/access.log main; location / { # Check if a file or directory index file exists, else route it to index.php. try_files $uri $uri/ /index.php ; } location ~* \.php { fastcgi_pass backend; include fastcgi.conf; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_read_timeout 500; #fastcgi_param SCRIPT_FILENAME $document_root/index.php; add_header Expires "Thu, 01 Jan 1970 00:00:01 GMT"; add_header Cache-Control "no-cache, no-store, private, proxy-revalidate, must-revalidate, post-check=0, pre-check=0"; add_header Pragma no-cache; add_header X-Served-By $hostname; } location ~* ^.+\.(css|js)$ { expires 7d; add_header Pragma public; add_header Cache-Control "public"; } # set expiration of assets to MAX for caching location ~* \.(ico|gif|jpe?g|png)(\?[0-9]+)?$ { expires max; log_not_found on; } } I need to use my URL With the index.php -- please help.

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• Shell script to block proftp failled attempt

  - by Saif

  Hello, I want to filter and block failed attempt to access my proftp server. Here is an example line from the /var/log/secure file: Jan 2 18:38:25 server1 proftpd[17847]: spy1.XYZ.com (93.218.93.95[93.218.93.95]) - Maximum login attempts (3) exceeded There are several lines like this. I would like to block any attempts like this from any IP twice. Here's a script I'm trying to run to block those IPs. tail -1000 /var/log/secure | awk '/proftpd/ && /Maximum login/ { if (/attempts/) try[$7]++; else try[$11]++; } END { for (h in try) if (try[h] > 4) print h; }' | while read ip do /sbin/iptables -L -n | grep $ip > /dev/null if [ $? -eq 0 ] ; then # echo "already denied ip: [$ip]" ; true else logger -p authpriv.notice "*** Blocking ProFTPD attempt from: $ip" /sbin/iptables -I INPUT -s $ip -j DROP fi done how can I select the IP with "awk". with the current script it's selecting "(93.218.93.95[93.218.93.95])" this line completely. But i only want to select the IP.

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• "No such file or directory"?

  - by user1509541

  Ok, so I have a VDS laying around, and I thought I would turn it into a TF2 game server. When I connect to my server through PuTTY, and use wget to download the package "hldsupdatetool.bin" from Steampowered.com. I go to run it and it says "No such file or directory found". When I use "ls" to see what files are in directory, it lists "hldsupdatetool.bin" as being in the directory. So, why is it saying it's not there? This has been a headache for the past 2 days. It's returning: root@10004:~# wget http://www.steampowered.com/download/hldsupdatetool.bin --2012-07-08 06:04:49-- http://www.steampowered.com/download/hldsupdatetool.bin Resolving www.steampowered.com... 208.64.202.68 Connecting to www.steampowered.com|208.64.202.68|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 3513408 (3.4M) [application/octet-stream] Saving to: “hldsupdatetool.bin.3” 100%[======================================>] 3,513,408 2.45M/s in 1.4s 2012-07-08 06:04:51 (2.45 MB/s) - “hldsupdatetool.bin.3” saved [3513408/3513408] root@10004:~# chmod +x hldsupdatetool.bin.3 root@10004:~# ./hldsupdatetool.bin.3 -bash: ./hldsupdatetool.bin.3: No such file or directory root@10004:~# More: root@10004:~# ls ffmpeg-packages hldsupdatetool.bin.1 hldsupdatetool.bin.3 hldsupdatetool.bin hldsupdatetool.bin.2 setup.sh root@10004:~# ls -la total 13828 drwx------ 4 root root 4096 Jul 8 06:04 . drwxr-xr-x 21 root root 4096 Jul 8 05:57 .. -rw------- 1 root root 8799 Jul 8 06:26 .bash_history -rw-r--r-- 1 root root 570 Jan 31 2010 .bashrc -rw-r--r-- 1 root root 4 Jul 2 19:39 .custombuild drwxr-xr-x 2 root root 4096 Jul 4 18:49 ffmpeg-packages ---x--xrwx 1 root root 3513408 Sep 2 2005 hldsupdatetool.bin -rwxr-xr-x 1 root root 3513408 Sep 2 2005 hldsupdatetool.bin.1 -rw-r--r-- 1 root root 3513408 Sep 2 2005 hldsupdatetool.bin.2 -rwxr-xr-x 1 root root 3513408 Sep 2 2005 hldsupdatetool.bin.3 -rw-r--r-- 1 root root 140 Nov 19 2007 .profile -rw------- 1 root root 1024 Jul 2 19:49 .rnd -rwxr-xr-x 1 root root 38866 May 23 22:02 setup.sh drwxr-xr-x 2 root root 4096 Jul 2 19:44 .ssh root@10004:~#

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• Excel 2010 - more than 1 calculation within an IF() statement

  - by Da Bajan

  I have a situation where I need to calculate shipping values based on the length of the supply chain. Easy, however I need to have instances where an increased amount is required based on specific date criteria. My example is as follows: Shipvalue = 100 Date1 = 1/1/2013 (Jan) - ship 50% more than usual Date2 = 2/1/2013 (Feb) - ship 25% more than usual Date3 = 3/1/2013 (Mar) - ship 25% more than usual Supply chain length is: June - October 100 days November - March 140 days April - June 100 days The issue I have is that as there is an increase in the number of days, my formula: IF( Date1-(Supply chain length + any extra days)=today's date, shipvalue+(shipvalue X 50%), IF( Date2-(Supply chain length + any extra days)=today's date, shipvalue+(shipvalue x 50%) IF( Date2-(Supply chain length + any extra days)=today's date, shipvalue+(shipvalue x 50%), IF( preceding cell<>0,shipvalue, 0) ) ) ) Now the problem with this is that if the length of the supply chain increases then the formula misses all but the 1st increase. So, I thought of adding a variable that would be incremented and checked every time you made an increased shipping amount. So, how do I do both the calculation for the increased shipping value, and set the variable in one part of the IF statement?

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• Windows-7 Ultimate 64 bit wont connect to my wired/wireless networks

  - by A302

  Windows 7 Ultimate 64 bit. Everything was working fine & then just stopped working. The nic card Realtek PCIe GBE Family Controller is enabled but does not connect to my router (cables & router ports are good). Wireless Atheros AR5007EG is enabled but the connection is limited (encryption type / key have been verified). A laptop running XP can connect both wired / wireless. SSID is not being broadcast, connect to network if it is not broadcasting is checked. Have checked services.msc for Bonjour & did not see it listed. Network & sharing center does not list any active networks. Device manager lists both devices as functioning properly. Router configuration has not been changed. Virus scan has not found anything. I would like to fix this rather than using Acronis to do a system restore. Thanks in advance for any advice offered in solving this. 26 Jan, the nic card & wireless are working using PCLinux OS Live CD. It appears that the problem is Windows 7 related.

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• Windows Azure Use Case: Agility

  - by BuckWoody

  This is one in a series of posts on when and where to use a distributed architecture design in your organization's computing needs. You can find the main post here: http://blogs.msdn.com/b/buckwoody/archive/2011/01/18/windows-azure-and-sql-azure-use-cases.aspx  Description: Agility in this context is defined as the ability to quickly develop and deploy an application. In theory, the speed at which your organization can develop and deploy an application on available hardware is identical to what you could deploy in a distributed environment. But in practice, this is not always the case. Having an option to use a distributed environment can be much faster for the deployment and even the development process. Implementation: When an organization designs code, they are essentially becoming a Software-as-a-Service (SaaS) provider to their own organization. To do that, the IT operations team becomes the Infrastructure-as-a-Service (IaaS) to the development teams. From there, the software is developed and deployed using an Application Lifecycle Management (ALM) process. A simplified view of an ALM process is as follows: Requirements Analysis Design and Development Implementation Testing Deployment to Production Maintenance In an on-premise environment, this often equates to the following process map: Requirements Business requirements formed by Business Analysts, Developers and Data Professionals. Analysis Feasibility studies, including physical plant, security, manpower and other resources. Request is placed on the work task list if approved. Design and Development Code written according to organization’s chosen methodology, either on-premise or to multiple development teams on and off premise. Implementation Code checked into main branch. Code forked as needed. Testing Code deployed to on-premise Testing servers. If no server capacity available, more resources procured through standard budgeting and ordering processes. Manual and automated functional, load, security, etc. performed. Deployment to Production Server team involved to select platform and environments with available capacity. If no server capacity available, standard budgeting and procurement process followed. If no server capacity available, systems built, configured and put under standard organizational IT control. Systems configured for proper operating systems, patches, security and virus scans. System maintenance, HA/DR, backups and recovery plans configured and put into place. Maintenance Code changes evaluated and altered according to need. In a distributed computing environment like Windows Azure, the process maps a bit differently: Requirements Business requirements formed by Business Analysts, Developers and Data Professionals. Analysis Feasibility studies, including budget, security, manpower and other resources. Request is placed on the work task list if approved. Design and Development Code written according to organization’s chosen methodology, either on-premise or to multiple development teams on and off premise. Implementation Code checked into main branch. Code forked as needed. Testing Code deployed to Azure. Manual and automated functional, load, security, etc. performed. Deployment to Production Code deployed to Azure. Point in time backup and recovery plans configured and put into place.(HA/DR and automated backups already present in Azure fabric) Maintenance Code changes evaluated and altered according to need. This means that several steps can be removed or expedited. It also means that the business function requesting the application can be held directly responsible for the funding of that request, speeding the process further since the IT budgeting process may not be involved in the Azure scenario. An additional benefit is the “Azure Marketplace”, In effect this becomes an app store for Enterprises to select pre-defined code and data applications to mesh or bolt-in to their current code, possibly saving development time. Resources: Whitepaper download- What is ALM?  http://go.microsoft.com/?linkid=9743693  Whitepaper download - ALM and Business Strategy: http://go.microsoft.com/?linkid=9743690  LiveMeeting Recording on ALM and Windows Azure (registration required, but free): http://www.microsoft.com/uk/msdn/visualstudio/contact-us.aspx?sbj=Developing with Windows Azure (ALM perspective) - 10:00-11:00 - 19th Jan 2011

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• links for 2011-01-13

  - by Bob Rhubart

  Webcast: Oracle WebCenter Suite: Giving Users a Modern Experience Speakers: Vince Casarez (VP Enterprise 2.0 Product Management, Oracle),  Erin Smith (Consulting Practice Manager – Portals, Oracle), Robert Wessa (Consulting Technical Director – Enterprise 2.0 Infrastructure, Oracle)  (tags: oracle otn webcenter webcast enterprise2.0) Oracle & StickyMinds.com Webcast: Load Testing Techniques for Enterprise Applications Mughees Minhas, Senior Director of Product Management, Oracle Server Technologies, answers your questions about the latest techniques for effectively and efficiently testing enterprise application performance. Thursday, January 20, 2011. 10am PT / 1pm ET. (tags: oracle otn stickymings webcast) Bay Area Coherence Special Interest Group (BACSIG) Jan 20, 5:30pm - 8:00pm PT. Presentations: Coherence 3.6 Clustering Features (Rob Lee), Efficient Management and Update of Coherence Clusters to Reduce Down Time ( Rao Bhethanabotla), How To Build a Coherence Practice (Christer Fahlgren). (tags: oracle, otn coherence bacsig) Podcast Show Notes: William Ulrich and Neal McWhorter on Business Architecture (ArchBeat) A four-part interview with the authors of  "Business Architecture: The Art and Practice of Business Transformation"  (tags: oracle otn podcast businessarchitecture) John Brunswick: Overlapping Social Networks in your Enterprise? Strategies to Understand and Govern "Overall it is important to consider if tacit knowledge being captured by the social systems is able to be retained and somehow summarized into an overall organizational directory." - John Brunswick (tags: oracle otn enterprise2.0 socialnetworking) Coherence - How to develop a custom push replication publisher (Middlewarepedia) Cosmin Todur describes "a way of developing a custom push replication publisher that publishes data to a database via JDBC."  (tags: oracle coherence grid) Aino Andriessen: Oracle Diagnostics Logging (ODL) for application development "Logging is a very important aspect of application development as it offers run-time access to the behaviour and data of the application. It’s important for debugging purposes but also to investigate exception situations on production." -- Aino Andriessen (tags: oracle odl java jdeveloper weblogic) Security issues when upgrading a Web Catalog from 10g to 11g Oracle BI By Bakboord "I blogged about upgrading from Oracle BI EE 10g to Oracle BI EE 11g R1 earlier. Although this is a very straight forward process, you could end up with some security issues." -- Daan Bakboord (tags: oracle businessintelligence obiee) Angelo Santagata: SOA Composite Sensors : Good Practice "A good best practice is that for any composites you create, consider publishing a composite sensor value using a primary key of some sort , e.g. orderId, that way if you need to manipulate/query composites you can easily look up the instanceId using the sensorid." - Angelo Santagata (tags: oracle soa sca) Javier Ductor: WebCenter Spaces 11g PS2 Task Flow Customization "Previously, I wrote about Spaces Template Customization. In order to adapt Spaces to customers prototype, it was necessary to change template and skin, as well as the members task flow. In this entry, I describe how to customize this task flow." - Javier Ductor (tags: oracle otn enterprise2.0 webcenter) RonBatra's blog: Cloud Computing Series: VI: Industry Directions "When someone says their 'Product/Solution is in the Cloud,' ask them basic questions to seperate the spin from the reality. I would start with 'tell me what that means' and see which way the conversation goes." - Oracle ACE Director Ron Batra (tags: oracle otn oracleace cloud) First JSRs Proposed for Java EE 7 (The Java Source) With the approval of Java SE 7 and Java SE 8 JSRs last month, attention is now shifting towards the Java EE platform. (tags: oracle java jsr javaee)

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• Silverlight Cream for February 10, 2011 -- #1045

  - by Dave Campbell

  In this Issue: Mark Monster, Jaime Rodriguez, Mark Hopkins, WindowsPhoneGeek, David Anson, Jesse Liberty, Jeremy Likness, Martin Krüger(-2-), Beth Massi, Joost van Schaik, Laurent Bugnion, and Arik Poznanski. Above the Fold: Silverlight: "Parsing the Visual Tree with LINQ" Jeremy Likness WP7: "Silverlight-ready PNG encoder implementation shows one way to use .NET IEnumerables effectively" David Anson Lightswitch: "How to Send Automated Appointments from a LightSwitch Application" Beth Massi Shoutouts: Be sure to visit SilverlightShow... check out their top hits last week: SilverlightShow for Jan 31- Feb 06, 2011 Jaime Rodriguez has a post up that all the WP7 folks will be interested in: FAQ about copy paste functionality in upcoming release From SilverlightCream.com: Make use of WCF FaultContracts in Silverlight clients Mark Monster takes a shot at answering “The remote server returned an error: NotFound” while connecting to a WCF Service problem we all see. Communication between HTML in WebBrowser and Silverlight app Jaime Rodriguez responds to questions he received about communication between HTML and SIlverlight with this post about the bi-directional communication between the control and HTML. WP7 - Real Apps, Real Code Mark Hopkins has a post up about some WP7 starter kits that you can get all the source for and actually download the app from the Marketplace first to see if it interests you! WP7 AboutPrompt in depth WindowsPhoneGeek has this cool post up about the AboutPrompt from the Coding4Fun toolkit in detail... great diagrams showing where all the elements are and code examples with images. Silverlight-ready PNG encoder implementation shows one way to use .NET IEnumerables effectively David Anson describes why he took it upon himself to write his own png encoder for Silverlight... and we all thank him for doing so and providing us with the code! Navigation 101–Cancelling Navigation Jesse Liberty's latest WP7 From Scratch episode is up (number 32), and he's talking about Navigation and how to cancel it if you need to. Parsing the Visual Tree with LINQ Jeremy Likness demonstrates using LINQ to rat out information in the visual tree of your XAML. To Quote Jeremy: "you can easily check for intersections between elements and find any type of element no matter how deep within the tree it is". SpriteAnimationBehavior Martin Krüger has a couple more fun things in the Expression Gallery that I haven't discussed. First up is a behavior that animates up to 999 images and lets you control the FramesPerSecond... great demo on the ExpressionGallery to play with. Second alternative: Storyboard should not start before the Silverlight application is loaded Martin Krüger's latest is a way to programmatically wait for the Loaded event so that you know you can let your animations fly. How to Send Automated Appointments from a LightSwitch Application Beth Massi's latest Lightswitch post follows up her Outlook automation one with sending appointments using the standard iCalendar format... all the code included of course. The case for the Bindable Application Bar for Windows Phone 7 Joost van Schaik posts about a bindable Application Bar for your WP7 apps... grab the code and don't leave home without it :) MVVM Light V4 preview (BL0014) release notes Laurent Bugnion posted an update to MVVMLight to Codeplex a couple days ago. This is an early preview of what he plans on having in version 4, so check out the post for what's new and fun. Search Digg on Windows Phone 7 Arik Poznanski followed up his RSS post from last week with this one on searching Digg on WP7... and he's discussing and providing a utility class for doing it. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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