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• What happens when the USB key or SD card I've installed VMware ESXi on fails?

  - by ewwhite

  An SD (SDHC) card installed in an HP ProLiant DL380p Gen8 server running VMware ESXi just failed. I encountered some rather ominous looking messages on the vCenter console and in the HP ProLiant ILO event log... Lost connectivity to the device ... backing the boot filesystem. As a result, host configuration changes will not be saved to persistent storage. Embedded Flash/SD-CARD: Error writing media 0, physical block 848880: Stack Exception. VMware advocates the use of USB and SD (SDHC) boot devices for ESXi. It was one of the main reasons the smaller footprint ESXi was developed (versus the older ESX). I've spent much time highlighting the differences between ESXi's installable and embedded modes to coworkers and clients. However, these failures do seem to happen. In this case, this is my third instance. Luckily, this is a vSphere cluster with SAN storage. What steps should be taken to remediate this failure?

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• PHP Suhosin extension is not loading

  - by wintercounter

  For some reason i have to adjust the suhosin.request.max_vars and suhosin.post.max_vars directives. I'm using ispCP, and it has default the suhosin patch, but as i read, i need to install the extension too. I've did this with apt-get install php5-suhosin and the suhosin.ini appeared in conf.d, and suhosin.so exists too in /usr/lib/php5. After the Apache restart the extension isn't loading. phpinfo() says: Scan this dir for additional .ini files /etc/php5/cgi/conf.d additional .ini files parsed /etc/php5/cgi/conf.d/adodb.ini, /etc/php5/cgi/conf.d/curl.ini, /etc/php5/cgi/conf.d/eAccelerator.ini, /etc/php5/cgi/conf.d/gd.ini, /etc/php5/cgi/conf.d/idn.ini, /etc/php5/cgi/conf.d/imagick.ini, /etc/php5/cgi/conf.d/imap.ini, /etc/php5/cgi/conf.d/mcrypt.ini, /etc/php5/cgi/conf.d/memcache.ini, /etc/php5/cgi/conf.d/mhash.ini, /etc/php5/cgi/conf.d/ming.ini, /etc/php5/cgi/conf.d/mysql.ini, /etc/php5/cgi/conf.d/mysqli.ini, /etc/php5/cgi/conf.d/pdo.ini, /etc/php5/cgi/conf.d/pdo_mysql.ini, /etc/php5/cgi/conf.d/pdo_sqlite.ini, /etc/php5/cgi/conf.d/ps.ini, /etc/php5/cgi/conf.d/pspell.ini, /etc/php5/cgi/conf.d/recode.ini, /etc/php5/cgi/conf.d/snmp.ini, /etc/php5/cgi/conf.d/sqlite.ini, /etc/php5/cgi/conf.d/tidy.ini, /etc/php5/cgi/conf.d/xmlrpc.ini, /etc/php5/cgi/conf.d/xsl.ini As you can see, it doesn't loads the suhosin.ini. What can be the problem?

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• Windows Updates Fails Server 2008 0x80070490

  - by Mark Robinson

  I have a server with Windows Server 2008 Standard x64 Edition installed. This has been installed and running for several months and I have been able to successfully install previous Windows Updates. I have two pending updates that fail to install. (KB967723) Security update for Windows Server 2008 x64 Edition (KB976098) Update for Windows Server 2008 x64 Edition Fails with Error code: 80070490 Followed this off Microsoft support site, which basically says to repair Windows with the install DVD. When I get to the step to select upgrade I get the following error. Upgrade has been disabled. The upgrade cannot be started. To upgrade, cancel the installation and then choose to upgrade to a version of windows that is more recent then the version you are currently running. So basically feel like I've hit a dead end with out doing a complete reinstall. Any ideas ?

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• Nginx dynamic upstream configuration / routing

  - by Dan Sosedoff

  I was experimenting with dynamic upstream configuration for nginx and cant find any good solution to implement upstream configuration from third-party source like redis or mysql. The idea behind it is to have a single file configuration in primary server and proxy requests to various app servers based on environment conditions. Think of dynamic deployments where you have X servers that are running Y workers on different ports. For instance, i create a new app and deploy. App manager selects a server and then rolls out a worker (Ruby/PHP/Python) and then reports the ip:port to the central database with status "up". At this time when i go to the given url nginx should proxy all requests to the specified ip:port upstream. The whole thing is pretty similar to what heroku does, except this proof-of-concept is not supposed to be production ready, mostly for internal needs. The easiest solution i found was using resolver with ruby-based DNS server. It works, nginx gets the IP address correctly, but the only problem is that you cant define port number for that IP. Second solution (which i havent tried yet) is to roll something else as a proxy server, maybe written in Erlang. In this case we need to use something to serve static content. Any ideas how to implement this in more flexible and stable way? P.S. Some research options: http://openresty.org/#DynamicRoutingBasedOnRedis https://github.com/nodejitsu/node-http-proxy

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• Subversion gives Error 500 until authenticating with a web browser

  - by Farseeker

  We used to use Collabnet SVN/Apache combo on a Windows server with LDAP authentication, and whilst the performance wasn't brilliant it used to work perfectly. After switching to a fresh Ubuntu 10 install, and setting up an Apache/SVN/LDAP configuration, we have HTTPS access to our repositories, using Active Directory authentication via LDAP. We're now having a very peculiar issue. Whenever a new user accesses a repository, our SVN clients (we have a few depending on the tool, but for arguments sake, let's stick to Tortoise SVN) report "Error 500 - Unknown Response". To get around this, we have to log into the repo using a web browser and navigate 'backwards' until it works E.G: SVN Checkout https://svn.example.local/SVN/MyRepo/MyModule/ - Error 500 (bad) Webbrowse to https://svn.example.local/SVN/MyRepo/MyModule/ - Error 500 (bad) Webbrowse to https://svn.example.local/SVN/MyRepo/ - Error 500 (bad) Webbrowse to https://svn.example.local/SVN/ - Forbidden 403 (correct) Webbrowse to https://svn.example.local/SVN/MyRepo/ - OK 200 (correct) SVN Checkout https://svn.example.local/SVN/MyRepo/MyModule/ - Error 500 (bad) Webbrowse to https://svn.example.local/SVN/MyRepo/MyModule/ - OK 200 (correct) SVN Checkout https://svn.example.local/SVN/MyRepo/MyModule/ - OK 200 (correct) It seems to require authentication up the tree, starting from the svnparentpath up through to the module required. Has anyone seen anything like this before? Any ideas on where to start before I ditch it back to Collabnet's SVN server?

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• MAPS windows 2008 r2 ent vs normal windows 2008 r2 ent edition [closed]

  - by KevinOelen

  Possible Duplicate: Can you help me with my software licensing question? Microsoft action pack subscription(MAPS) offers that many internal use of softwares, especially windows server 2008 R2 Ent 1 license with 10 CALs. Total cost is 329$ But when I looking for microsoft licensing and pricing guide, windows server 2008 r2 ent edition costs 3919$ with 25 cal. Do we really need to buy windows enterprise edition?

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• Is there a setting in Exchange Server 2007 that we can set to make these headers propogate and be received by a POP/IMAP client?

  - by Ruruboy

  When using EWS Managed API to send Email via Exchange Server 2007. I noticed that MAPI clients like MS Outlook display all custom headers. But when I use POP3/IMAP clients like MS Outlook Express. I have noticed that these custom headers do not display in the message opened from MS Outlook Express. Is there a setting in Exchange Server 2007 that we can set to make these custom headers propagate and be received by a POP/IMAP client? Also why do custom headers in example below display up in lower case in MAPI clients like MS Outlook? But surprisingly if we use SMTPClient class to send email then these headers display as sent with Case Sensitive letters. eg. Header. Example of Headers received by a MAPI client like MS Outlook via Exchange Server 2007 Received: from EXMAILVS1.blabla.com ([192.168.191.136]) by cashtp02.blabla.com ([XXX.XXX.XX.XXX]) with mapi; Mon, 20 Dec 2010 12:17:05 -0800 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: asfsdf <[email protected]> To: asdsdf <[email protected]> Date: Mon, 20 Dec 2010 12:17:04 -0800 Subject: Please send me this header Thread-Topic: Please send me this header Thread-Index: AQHLoILek7g5cFgHQU6lHHfiKkdUMg== Message-ID: <[email protected]> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: <[email protected]> customheader1: hello ali customheader2: hello Jace MIME-Version: 1.0

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• Good book for a software developer doing part-time (Linux) system administration work

  - by Tony Meyer

  In many smaller organisations, developers often end up doing some system administration work (for obvious reasons). A lot of the time, they have great developer skills, but few system administration skills (perhaps all self-taught), and so have to learn as they go, which is fairly inefficient. Are there canonical (or simply great) books that would help in this situation? More advanced than just using a shell (presumably a developer can do that), but not aimed at someone that hopes to spend many years doing this work. Ideally, something fairly generic (although specific to a distribution would be OK), covering databases, networking, general maintenance, etc, not just one specific task. For the most part, I'm interested in shell-based work (i.e. no GUI installed), although if there's something outstanding I'm missing, please point it out. (As an analogy, replace "system administration" with C, and I'd want K&R, with C++ and I'd want Meyers' "Effective C++").

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• Activation context generation failed for "C:\php\php-cgi.exe". Dependent Assembly

  - by Eyla

  Greeting, I have Windows Server 2008 Server Core. I want to configure this server to host php websites using IIS 7. I installed and configured IIS7 to run php using the steps in this website: http://blogs.msdn.com/b/philpenn/archive/2009/07/19/deploying-iis-7-5-fastcgi-php-on-server-core.aspx Now I’m facing a problem that when I request my php website I would get this error. Server Error 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed. I check the even log and I found these details too: Activation context generation failed for "C:\php\php-cgi.exe". Dependent Assembly Microsoft.VC90.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.21022.8" could not be found. Please use sxstrace.exe for detailed diagnosis. I search about this error and I found a solution for it but which is to install Microsoft Visual C++ 2008 SP1 Redistributable Package (x86). I installed but still I’m getting same error. Please help me to solve this problem and let me know if you want to know more info about my issue.

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• Can't ssh tunnel to access a remote mysql server

  - by hobbes3

  I can't seem to figure out why I can't use ssh tunnel to connect to my remote MySQL server. I do ssh tunnel with [hobbes3@hobbes3] ~ $ ssh linode -L 3307:localhost:3306 Then on another terminal, I try [hobbes3@hobbes3] ~ $ mysql -h localhost -P 3307 -u root --protocol=tcp -p Enter password: ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 2 On the server, it shows this: root@li534-120 ~ # channel 4: open failed: connect failed: Connection refused Here is my my.cnf on the server: [mysqld] # Settings user and group are ignored when systemd is used (fedora >= 15). # If you need to run mysqld under different user or group, # customize your systemd unit file for mysqld according to the # instructions in http://fedoraproject.org/wiki/Systemd user=mysql datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Semisynchronous Replication # http://dev.mysql.com/doc/refman/5.5/en/replication-semisync.html # uncomment next line on MASTER ;plugin-load=rpl_semi_sync_master=semisync_master.so # uncomment next line on SLAVE ;plugin-load=rpl_semi_sync_slave=semisync_slave.so # Others options for Semisynchronous Replication ;rpl_semi_sync_master_enabled=1 ;rpl_semi_sync_master_timeout=10 ;rpl_semi_sync_slave_enabled=1 # http://dev.mysql.com/doc/refman/5.5/en/performance-schema.html ;performance_schema [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid [mysqld] port = 3306 socket=/var/lib/mysql/mysql.sock skip-external-locking key_buffer_size = 64M max_allowed_packet = 128M sort_buffer_size = 512K net_buffer_length = 8K read_buffer_size = 256K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M thread_cache = 8 max_connections = 25 query_cache_size = 16M table_open_cache = 1024 table_definition_cache = 1024 tmp_table_size = 32M max_heap_table_size = 32M bind-address = 0.0.0.0 Now sure if this helps but here is the MySQL user list: mysql> select * from mysql.user; +-----------+------+-------------------------------------------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+--------------+-----------+------------+-----------------+------------+------------+--------------+------------+-----------------------+------------------+--------------+-----------------+------------------+------------------+----------------+---------------------+--------------------+------------------+------------+--------------+------------------------+----------+------------+-------------+--------------+---------------+-------------+-----------------+----------------------+--------+-----------------------+ | Host | User | Password | Select_priv | Insert_priv | Update_priv | Delete_priv | Create_priv | Drop_priv | Reload_priv | Shutdown_priv | Process_priv | File_priv | Grant_priv | References_priv | Index_priv | Alter_priv | Show_db_priv | Super_priv | Create_tmp_table_priv | Lock_tables_priv | Execute_priv | Repl_slave_priv | Repl_client_priv | Create_view_priv | Show_view_priv | Create_routine_priv | Alter_routine_priv | Create_user_priv | Event_priv | Trigger_priv | Create_tablespace_priv | ssl_type | ssl_cipher | x509_issuer | x509_subject | max_questions | max_updates | max_connections | max_user_connections | plugin | authentication_string | +-----------+------+-------------------------------------------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+--------------+-----------+------------+-----------------+------------+------------+--------------+------------+-----------------------+------------------+--------------+-----------------+------------------+------------------+----------------+---------------------+--------------------+------------------+------------+--------------+------------------------+----------+------------+-------------+--------------+---------------+-------------+-----------------+----------------------+--------+-----------------------+ | localhost | root | *664328D3C5E263F4FB25185681AAE7E92B01B2B0 | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | | | | | 0 | 0 | 0 | 0 | | | | 127.0.0.1 | root | *664328D3C5E263F4FB25185681AAE7E92B01B2B0 | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | | | | | 0 | 0 | 0 | 0 | | | | ::1 | root | *664328D3C5E263F4FB25185681AAE7E92B01B2B0 | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | | | | | 0 | 0 | 0 | 0 | | | +-----------+------+-------------------------------------------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+--------------+-----------+------------+-----------------+------------+------------+--------------+------------+-----------------------+------------------+--------------+-----------------+------------------+------------------+----------------+---------------------+--------------------+------------------+------------+--------------+------------------------+----------+------------+-------------+--------------+---------------+-------------+-----------------+----------------------+--------+-----------------------+ 3 rows in set (0.00 sec) I read about how MySQL treats localhost vs 127.0.0.1 as connecting via a socket or TCP, respectively. But I'm starting to get confused on what's really going on or if socket vs TCP is even the issue. Thanks in advance and I'm open for any tips and suggestions! Some more info: My MySQL client, running OS X 10.8.4, is mysql Ver 14.14 Distrib 5.6.10, for osx10.8 (x86_64) using EditLine wrapper My MySQL server, running on CentOS 6.4 32-bit, is mysql> SHOW VARIABLES LIKE "%version%"; +-------------------------+--------------------------------------+ | Variable_name | Value | +-------------------------+--------------------------------------+ | innodb_version | 1.1.8 | | protocol_version | 10 | | slave_type_conversions | | | version | 5.5.28 | | version_comment | MySQL Community Server (GPL) by Remi | | version_compile_machine | i686 | | version_compile_os | Linux | +-------------------------+--------------------------------------+ 7 rows in set (0.00 sec)

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• Insufficient storage available to create shadow copy

  - by Bob.at.SBS

  I have used the "Windows 7 File Recovery" tool under Windows 8 to create system image backups to an external USB hard drive. I built a new Windows 8.1 machine, and I want to create my first system image backup of that machine to the same USB hard drive. The "Windows 7 File Recovery" tool is gone in Windows 8.1, but wbAdmin is alive and well: wbAdmin start backup -backupTarget:\\?\Volume{2a2b...994f} -allCritical -quiet fails with this text displayed: wbadmin 1.0 - Backup command-line tool (C) Copyright 2013 Microsoft Corporation. All rights reserved. Retrieving volume information... This will back up (EFI System Partition),(C:),Recovery (300.00 MB) to \?\Volume {2a2b1255-3a86-11e3-be86-b8ca3a83994f}. The backup operation to F: is starting. Creating a shadow copy of the volumes specified for backup... Summary of the backup operation: The backup operation stopped before completing. The backup operation stopped before completing. Detailed error: ERROR - A Volume Shadow Copy Service operation error has occurred: (0x8004231f) Insufficient storage available to create either the shadow copy storage file or other shadow copy data. The EFI System Partition is 100 MB The Recovery Partition is 300 MB The C partition is 1.72 TB, NTFS, 218 GB used, 1.51 TB free The destination drive is 1.81 TB, NTFS, 678 GB used, 1.15 TB free I've fiddled with vssadmin resize shadowstorage, with no change in the error. vssadmin list shadowstorage displays: Shadow Copy Storage association For volume: (C:)\?\Volume{37a0...263}\ Shadow Copy Storage volume: (C:)\?\Volume{37a0...263}\ Used Shadow Copy Storage space: 2.39 GB (0%) Allocated Shadow Copy Storage space: 2.81 GB (0%) Maximum Shadow Copy Storage space: 531 GB (30%) Shadow Copy Storage association For volume: (F:)\?\Volume{2a2...94f}\ Shadow Copy Storage volume: (F:)\?\Volume{2a2...94f}\ Used Shadow Copy Storage space: 334 GB (17%) Allocated Shadow Copy Storage space: 337 GB (18%) Maximum Shadow Copy Storage space: UNBOUNDED (922154758%) (Yeah, the "percent calculation" for UNBOUNDED is seriously bogus.) I've run SFC /verifyonly and it seems happy. I've verified that the new `Volume Shadow Copy" service starts when I start the backup operation. Any suggestions?

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• How do I Install fonts on Windows Web Server 2008 R2

  - by Eric Brearley

  I would like to install Arial on to our web servers. Just need to add, this is because we generate reports server-side and make them available in a number of downloadable formats (Excel, PDF etc), hence the need to have the fonts installed on the server. I have console access to our webfarm, and from the server I've copied the .ttf files and placed them in c:\fonts folder. Then I run the following VBScript on the server. ' VBScript to install fonts on Blade Servers ' Arial font-family Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace("c:\fonts") Set objFolderItem = objFolder.ParseName("arial.ttf") objFolderItem.InvokeVerb("Install") Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace("c:\fonts") Set objFolderItem = objFolder.ParseName("arialbd.ttf") objFolderItem.InvokeVerb("Install") Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace("c:\fonts") Set objFolderItem = objFolder.ParseName("arialbi.ttf") objFolderItem.InvokeVerb("Install") Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace("c:\fonts") Set objFolderItem = objFolder.ParseName("ariali.ttf") objFolderItem.InvokeVerb("Install") Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace("c:\fonts") Set objFolderItem = objFolder.ParseName("ariblk.ttf") objFolderItem.InvokeVerb("Install") msgbox "Fonts installed" I get the message box, but no font installation pop-ups like I do when I run this script on my desktop. The fonts do not get installed, they do not sure in the font selection dialogue in notepad (on the web server) and we get the asp.net exception "Font 'Arial' cannot be found.". Have also restarted the server. I have also tried copying the .ttf files to the c:\windows\fonts folder and restarting the server. What do I need to do to install fonts on Windows Web Server 2008 R2?

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• Exchange 2007 ignoring Send Connectors (again)

  - by gravyface

  Wow, I'm at a loss here -- I posted this exact same question a while back and it's doing the exact same thing: my Send Connector I've created for "Microsoft Domains" (hotmail.com cost 1) is being ignored again and routed through the "Default" Send Connector (* cost 10). Last time, I had the same cost for both Send Connectors, but I've tried setting the Default connector to 5, 10, 100, etc. and regardless, all mail gets routed through that connector (which smarthosts through Postini). Besides calling an air strike on Redmond, what else can I do? MS is blocking Postini again, need to get this working permanently.

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• PXE boot and DHCP server configuration Failing Auto Installation

  - by Harihara Vinayakaram

  I have a ISC DHCP Server installed on Ubuntu 9.10 . I have managed to successfully boot a PXE client , obtain a DHCP address and load the initrd.gz file. But I am facing a vague problem when the debian installer starts up and tries to get a DHCP server The client send a DHCP request and I verified that is the same MAC Address. But I get a DHCP DECLINE (The client declines the address ). It offers all the address in the pool and then there is a DHCP NAK (no more free leases ) I tried using the Option no-ping, and also option one-client-one-lease but it does not help . If I set the client to use a fixed-address then the above problem is not there and the installation proceeds smoothly Can you give me any clues on what should be the DHCP server configuration My dhcpd.conf looks like this { ddns-update-style none; option domain-name "hadoop-myorg.org"; option domain-name-servers 192.168.3.5; default-lease-time 600; max-lease-time 7200; group { filename "pxelinux.0"; next-server 192.168.13.184; host hadoop1 { hardware ethernet 90:e6:ba:d5:53:f8; } } subnet 192.168.13.0 netmask 255.255.255.0 { option routers 10.0.0.254; pool { option domain-name-servers 192.168.3.5; max-lease-time 3000; range 192.168.13.55 192.168.13.65; deny unknown-clients; } } }

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• Nginx rewrites incorrectly

  - by Oliver K.

  For some reason www.server-1.com/forum doesn't redirect to forum.server-1.com but www.server-2.com. When I delete the part where it redirects www.server-1.com to www.server-2.com it works like a charm... well, not quite, since the first slash after forum get's somehow lost in the process whenever the URL doesn't end with /forum but, for example, with /forum/index.php. # Redirect www.server-1.com/forum to forum.server-1.com # Redirect www.server-1.com/forum/ to forum.server-1.com # Redirect www.server-1.com/forums to forum.server-1.com # Redirect www.server-1.com/forums/ to forum.server-1.com # Redirect www.server-1.com to www.server-2.com server { listen 80; server_name www.server-1.com; location = /forum { rewrite ^ http://forum.server-1.com redirect; break; } location /forum/ { rewrite ^/forum/(.*) http://forum.server-1.com$1 redirect; break; } location = /forums { rewrite ^ http://forum.server-1.com redirect; break; } location /forums/ { rewrite ^/forums/(.*) http://forum.server-1.com$1 redirect; break; } rewrite ^ http://www.server-2.com redirect; } # Redirect forum.server-1.com to www.server-3.com/forum (where the forum is hosted) server { listen 80; server_name forum.server-1.com; rewrite ^(.*) http://www.server-3.com/forum$1 redirect; } # Redirect forums.server-1.com to forum.server-1.com server { listen 80; server_name forums.server-1.com; rewrite ^(.*) http://forum.server-1.com$1 redirect; } # Redirect server-1.com and *server-1.com to www.server-1.com server { listen 80; server_name server-1.com *.server-1.com; rewrite ^(.*) http://www.server-1.com$1 redirect; } Thanks in advance!

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• Unable to access VLAN host from VLAN interface in CentOS

  - by Amrit

  I am playing with VLAN (Virtual LAN) configuration on CentOS 6.4. I have 2 interfaces, eth0 and eth1. I have configured 2 VLAN interfaces eth0.20 and eth0.30 as #file: ifcfg-eth0.20 #------------- VLAN=yes DEVICE=eth0.20 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.20.1 GATEWAY=192.168.20.1 NETMASK=255.255.255.0 USERCTL=no #file: ifcfg-eth0.30 #------------- VLAN=yes DEVICE=eth0.30 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.30.1 GATEWAY=192.168.30.1 NETMASK=255.255.255.0 USERCTL=no Then connected a desktop to interface eth0 port using LAN cable and assigned 192.168.30.2/24 IP. When I try to ping 192.168.30.1 from 192.168.30.2 machine, It shows destination host unreachable. I am also not able to ping 192.168.130.2 from 192.168.30.1. However ping -I eth0 192.168.30.2 works fine. Any pointers?

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• Running perfmon continuously with periodic files

  - by Sal

  I have a question very similar to this one, but I want to continuously run perfmon, during reboots and throughout the day. Further, I'd like to generate a perfmon report every 10 mins or so. The original question tells me how to run perfmon when the server is restarted, but I don't know how to make perfmon continuously run while throwing periodic files. I've tried setting it as a scheduled task that needs to be done every 10 mins, but this is too sloppy, and when the scheduled task kicks another instance, the current perfmon report writer crashes, and I get a garbage report. I've also tried writing a sloppy batch script that would fire off the task at scheduled intervals, but this is the same problem as the scheduled task. I'm sure I'm just missing something silly, but I don't see it. Ideas? (If it helps, I'm running Windows 7 locally, and I'm trying to set up the processes for boxes running Windows 2008.)

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• NFS caching on Ubuntu

  - by stream

  We run a bunch of ubuntu servers (mostly 8.04 LTS) which all mount an nfs share at /nfs. We use the nfs primarily for two purposes: symlinking config files (such as apache vhosts) reading & writing uploaded files This all works great except it makes us fully dependent on the central NFS server (which is a DRBD cluster with heartbeat failover from primary to secondary, but we've still seen issues). What we'd like is if we could mount the NFS through some local caching layer which would make any file which had previously been read remain available even if /nfs isn't. Writes could be disabled for this period. Searching around it looks like cachefilesd may be an option. Unfortunately, it's only packaged for ubuntu 9.10 & 10.04 it looks like. I was also looking for a FUSE-based solution which might fit the bill, but hadn't found anything yet. Any suggestions would be greatly appreciated!

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• Access IIS Admin without local administrator rights

  - by Carl

  We are running Microsoft Server 2003 with IIS. We would like to give our developers access to manage IIS (through IIS Admin) but do not want them to be administrators of the entire machine. Putting them in "Power Users" group does not seem to work. What permissions should we grant to our developers to allow them to manage IIS (e.g. add websites, modify app pools, etc.) without giving them full admin rights to the server?

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• Automating an SSRS 2008 R2 Report Snapshots and run report with most recent data

  - by Mr Shoubs

  I would like to automate a report snapshot, but there is only an option to take a snapshot in the Report History Tab. All the resources I've found suggest I need to go to processing options and select "Render this report from a snapshot". But I don't want to do that - when I go to a report, I want to get the most recent data. However daily at midnight I'd like to take a snapshot and store it in the history in case I want to compare the reports as of midnight for the last few weeks. Or am I doing this wrong and have to create a subscription instead? Note: this is for an auditing database and has way to much data in to query a range with more than 1 day in it - reports are restricted as such. (1 day has over 1 million rows on it's own).

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• Jabber/XMPP Client for BlackBerry

  - by SpaceManSpiff

  Hello All, I am looking for a Jabber/XMPP client for BlackBerry that I can use with our OpenFire server. It needs to be able to use the Secure connection from OpenFire either the SSL or TLS. It needs to be a direct connection to our server, no 3rd party sever in the middle It needs to be free. I have tested and JiveTalk works great and we'll use it if I can't find another one, we're just trying to find a free one. Thanks

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• Log every IP connecting on a system with iptables

  - by Alexandre Nizoux

  Title says it all. How can I, with iptables, log all IP connecting to a server? As a little detail, I'd like to have only ONE entry in the log PER DAY PER IP. Thanks :)

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• Most efficient way to connect an ISAPI Dll to a windows service

  - by Mike Trader

  I am writing a custom server for a client. They want scalability so I must use a thread pool and probably I/O completion port to regulate it. The main requirement is that a windows service manage the HTTP requests for a number of reasons. An example of one would be that a client session spans many requests and continuity must be maintained. Another would be that the ISAPI Dll will be in the IIS address space and so it's code will be lean and very carefully implemented. The extensive processing in the Windows service may get unruly for the duration of the lengthy development. If the service crashes it will not take out IIS. Anyway, the remaining decision is how to have these two processes communicate. We have talked about pipes, tcp, global memory and even a single pipe with multiplexed data ala FastCGI. Would love to hear anyones experience with a decision like this.

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• Why RSA SSH authentication only works after console log-in?

  - by smorhaim

  I setup RSA authentication on one of my Ubuntu servers, however after every restart, I can't log-in via ssh RSA. In order to log-in with ssh I need to first log-in via console, then the RSA starts working. Why??? Below are my sshd config file as well as an output from the ssh -vv command before console log-in and after. . Before console log-in: debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /Users/smorhaim/.ssh/smorhaim (0x7ff8d8c242c0) debug2: key: /Users/smorhaim/.ssh/id_rsaadmin (0x7ff8d8c24cf0) debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering RSA public key: /Users/smorhaim/.ssh/smorhaim debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey debug1: Offering RSA public key: /Users/smorhaim/.ssh/id_rsaadmin debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey debug2: we did not send a packet, disable method debug1: No more authentication methods to try. Permission denied (publickey). After console log-in: debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /Users/smorhaim/.ssh/smorhaim (0x7f91c14242c0) debug2: key: /Users/smorhaim/.ssh/id_rsaadmin (0x7f91c1424ae0) debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering RSA public key: /Users/smorhaim/.ssh/smorhaim debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-rsa blen 279 debug2: input_userauth_pk_ok: fp b1:d5:90:43:be:43:52:a9:7f:05:c7:04:86:57:b3:ff debug1: Authentication succeeded (publickey). Authenticated to 10.10.30.151 ([10.10.30.151]:22). sshd config: Port 22 Protocol 2 ListenAddress 10.10.30.151 UsePrivilegeSeparation yes SyslogFacility AUTHPRIV PermitRootLogin no PasswordAuthentication no ChallengeResponseAuthentication no UsePAM yes X11Forwarding yes

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• Converting Lighttpd config to NginX with php-fpm

  - by Le Dude

  Having so much issue with NginX configuration since I'm new with NginX. Been using Lighttpd for quite sometime. Here are the base info. New Machine - CentOS 6.3 64 Bit - NginX 1.2.4-1.e16.ngx - Php-FPM 5.3.18-1.e16.remi Old Machine - CentOS 6.2 64Bit - Lighttpd 1.4.25-3.e16 Original Lighttpd config file: ####################################################################### ## ## /etc/lighttpd/lighttpd.conf ## ## check /etc/lighttpd/conf.d/*.conf for the configuration of modules. ## ####################################################################### ####################################################################### ## ## Some Variable definition which will make chrooting easier. ## ## if you add a variable here. Add the corresponding variable in the ## chroot example aswell. ## var.log_root = "/var/log/lighttpd" var.server_root = "/var/www" var.state_dir = "/var/run" var.home_dir = "/var/lib/lighttpd" var.conf_dir = "/etc/lighttpd" ## ## run the server chrooted. ## ## This requires root permissions during startup. ## ## If you run Chrooted set the the variables to directories relative to ## the chroot dir. ## ## example chroot configuration: ## #var.log_root = "/logs" #var.server_root = "/" #var.state_dir = "/run" #var.home_dir = "/lib/lighttpd" #var.vhosts_dir = "/vhosts" #var.conf_dir = "/etc" # #server.chroot = "/srv/www" ## ## Some additional variables to make the configuration easier ## ## ## Base directory for all virtual hosts ## ## used in: ## conf.d/evhost.conf ## conf.d/simple_vhost.conf ## vhosts.d/vhosts.template ## var.vhosts_dir = server_root + "/vhosts" ## ## Cache for mod_compress ## ## used in: ## conf.d/compress.conf ## var.cache_dir = "/var/cache/lighttpd" ## ## Base directory for sockets. ## ## used in: ## conf.d/fastcgi.conf ## conf.d/scgi.conf ## var.socket_dir = home_dir + "/sockets" ## ####################################################################### ####################################################################### ## ## Load the modules. include "modules.conf" ## ####################################################################### ####################################################################### ## ## Basic Configuration ## --------------------- ## server.port = 80 ## ## Use IPv6? ## #server.use-ipv6 = "enable" ## ## bind to a specific IP ## #server.bind = "localhost" ## ## Run as a different username/groupname. ## This requires root permissions during startup. ## server.username = "lighttpd" server.groupname = "lighttpd" ## ## enable core files. ## #server.core-files = "disable" ## ## Document root ## server.document-root = server_root + "/lighttpd" ## ## The value for the "Server:" response field. ## ## It would be nice to keep it at "lighttpd". ## #server.tag = "lighttpd" ## ## store a pid file ## server.pid-file = state_dir + "/lighttpd.pid" ## ####################################################################### ####################################################################### ## ## Logging Options ## ------------------ ## ## all logging options can be overwritten per vhost. ## ## Path to the error log file ## server.errorlog = log_root + "/error.log" ## ## If you want to log to syslog you have to unset the ## server.errorlog setting and uncomment the next line. ## #server.errorlog-use-syslog = "enable" ## ## Access log config ## include "conf.d/access_log.conf" ## ## The debug options are moved into their own file. ## see conf.d/debug.conf for various options for request debugging. ## include "conf.d/debug.conf" ## ####################################################################### ####################################################################### ## ## Tuning/Performance ## -------------------- ## ## corresponding documentation: ## http://www.lighttpd.net/documentation/performance.html ## ## set the event-handler (read the performance section in the manual) ## ## possible options on linux are: ## ## select ## poll ## linux-sysepoll ## ## linux-sysepoll is recommended on kernel 2.6. ## server.event-handler = "linux-sysepoll" ## ## The basic network interface for all platforms at the syscalls read() ## and write(). Every modern OS provides its own syscall to help network ## servers transfer files as fast as possible ## ## linux-sendfile - is recommended for small files. ## writev - is recommended for sending many large files ## server.network-backend = "linux-sendfile" ## ## As lighttpd is a single-threaded server, its main resource limit is ## the number of file descriptors, which is set to 1024 by default (on ## most systems). ## ## If you are running a high-traffic site you might want to increase this ## limit by setting server.max-fds. ## ## Changing this setting requires root permissions on startup. see ## server.username/server.groupname. ## ## By default lighttpd would not change the operation system default. ## But setting it to 2048 is a better default for busy servers. ## ## With SELinux enabled, this is denied by default and needs to be allowed ## by running the following once : setsebool -P httpd_setrlimit on server.max-fds = 2048 ## ## Stat() call caching. ## ## lighttpd can utilize FAM/Gamin to cache stat call. ## ## possible values are: ## disable, simple or fam. ## server.stat-cache-engine = "simple" ## ## Fine tuning for the request handling ## ## max-connections == max-fds/2 (maybe /3) ## means the other file handles are used for fastcgi/files ## server.max-connections = 1024 ## ## How many seconds to keep a keep-alive connection open, ## until we consider it idle. ## ## Default: 5 ## #server.max-keep-alive-idle = 5 ## ## How many keep-alive requests until closing the connection. ## ## Default: 16 ## #server.max-keep-alive-requests = 18 ## ## Maximum size of a request in kilobytes. ## By default it is unlimited (0). ## ## Uploads to your server cant be larger than this value. ## #server.max-request-size = 0 ## ## Time to read from a socket before we consider it idle. ## ## Default: 60 ## #server.max-read-idle = 60 ## ## Time to write to a socket before we consider it idle. ## ## Default: 360 ## #server.max-write-idle = 360 ## ## Traffic Shaping ## ----------------- ## ## see /usr/share/doc/lighttpd/traffic-shaping.txt ## ## Values are in kilobyte per second. ## ## Keep in mind that a limit below 32kB/s might actually limit the ## traffic to 32kB/s. This is caused by the size of the TCP send ## buffer. ## ## per server: ## #server.kbytes-per-second = 128 ## ## per connection: ## #connection.kbytes-per-second = 32 ## ####################################################################### ####################################################################### ## ## Filename/File handling ## ------------------------ ## ## files to check for if .../ is requested ## index-file.names = ( "index.php", "index.rb", "index.html", ## "index.htm", "default.htm" ) ## index-file.names += ( "index.xhtml", "index.html", "index.htm", "default.htm", "index.php" ) ## ## deny access the file-extensions ## ## ~ is for backupfiles from vi, emacs, joe, ... ## .inc is often used for code includes which should in general not be part ## of the document-root url.access-deny = ( "~", ".inc" ) ## ## disable range requests for pdf files ## workaround for a bug in the Acrobat Reader plugin. ## $HTTP["url"] =~ "\.pdf$" { server.range-requests = "disable" } ## ## url handling modules (rewrite, redirect) ## #url.rewrite = ( "^/$" => "/server-status" ) #url.redirect = ( "^/wishlist/(.+)" => "http://www.example.com/$1" ) ## ## both rewrite/redirect support back reference to regex conditional using %n ## #$HTTP["host"] =~ "^www\.(.*)" { # url.redirect = ( "^/(.*)" => "http://%1/$1" ) #} ## ## which extensions should not be handle via static-file transfer ## ## .php, .pl, .fcgi are most often handled by mod_fastcgi or mod_cgi ## static-file.exclude-extensions = ( ".php", ".pl", ".fcgi", ".scgi" ) ## ## error-handler for status 404 ## #server.error-handler-404 = "/error-handler.html" #server.error-handler-404 = "/error-handler.php" ## ## Format: <errorfile-prefix><status-code>.html ## -> ..../status-404.html for 'File not found' ## #server.errorfile-prefix = "/srv/www/htdocs/errors/status-" ## ## mimetype mapping ## include "conf.d/mime.conf" ## ## directory listing configuration ## include "conf.d/dirlisting.conf" ## ## Should lighttpd follow symlinks? ## server.follow-symlink = "enable" ## ## force all filenames to be lowercase? ## #server.force-lowercase-filenames = "disable" ## ## defaults to /var/tmp as we assume it is a local harddisk ## server.upload-dirs = ( "/var/tmp" ) ## ####################################################################### ####################################################################### ## ## SSL Support ## ------------- ## ## To enable SSL for the whole server you have to provide a valid ## certificate and have to enable the SSL engine.:: ## ## ssl.engine = "enable" ## ssl.pemfile = "/path/to/server.pem" ## ## The HTTPS protocol does not allow you to use name-based virtual ## hosting with SSL. If you want to run multiple SSL servers with ## one lighttpd instance you must use IP-based virtual hosting: :: ## ## $SERVER["socket"] == "10.0.0.1:443" { ## ssl.engine = "enable" ## ssl.pemfile = "/etc/ssl/private/www.example.com.pem" ## server.name = "www.example.com" ## ## server.document-root = "/srv/www/vhosts/example.com/www/" ## } ## ## If you have a .crt and a .key file, cat them together into a ## single PEM file: ## $ cat /etc/ssl/private/lighttpd.key /etc/ssl/certs/lighttpd.crt \ ## > /etc/ssl/private/lighttpd.pem ## #ssl.pemfile = "/etc/ssl/private/lighttpd.pem" ## ## optionally pass the CA certificate here. ## ## #ssl.ca-file = "" ## ####################################################################### ####################################################################### ## ## custom includes like vhosts. ## #include "conf.d/config.conf" #include_shell "cat /etc/lighttpd/vhosts.d/*.conf" ## ####################################################################### ####################################################################### ### Custom Added by me #url.rewrite-once = (".*\.(js|ico|gif|jpg|png|css|jar|class)$" => "$0", "" => "/index.php") url.rewrite-once = ( ".*\?(.*)$" => "/index.php?$1", "^/js/.*$" => "$0", "^.*\.(js|ico|gif|jpg|png|css|swf |jar|class)$" => "$0", "" => "/index.php" ) # expire.url = ( "" => "access 1 days" ) include "myvhost-vhosts.conf" ####################################################################### Here is my Vhost file for lighttpd $HTTP["host"] =~ "192.168.8.35$" { server.document-root = "/var/www/lighttpd/qc41022012/public" server.errorlog = "/var/log/lighttpd/error.log" accesslog.filename = "/var/log/lighttpd/access.log" server.error-handler-404 = "/e404.php" } and here is my nginx.conf file user nginx; worker_processes 5; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /var/log/nginx/testsite/logs/access.log main; sendfile on; #tcp_nopush on; keepalive_timeout 65; #gzip on; # include /etc/nginx/conf.d/*.conf; ## I added this ## include /etc/nginx/sites-available/*; } Here is my NginX Vhost file server { server_name 192.168.8.91; access_log /var/log/nginx/myapps/logs/access.log; error_log /var/log/nginx/myapps/logs/error.log; root /var/www/html/myapps/public; location / { index index.html index.htm index.php; } location = /favicon.ico { return 204; access_log off; log_not_found off; } # location ~ \.php$ { # try_files $uri /index.php; # include /etc/nginx/fastcgi_params; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; # fastcgi_param SCRIPT_NAME $fastcgi_script_name; location ~ \.php.*$ { rewrite ^(.*.php)/ $1 last; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; # fastcgi_intercept_errors on; # fastcgi_param SCRIPT_FILENAME $document_root/index.php; # fastcgi_param PATH_INFO $uri; # fastcgi_pass 127.0.0.1:9000; # include fastcgi_params; } } We have a custom apps that we created that works great with lighttpd. I went through some headache also when we were trying to figure out how to make it work with lighttpd. this is the line that helps make it work in lighttpd. url.rewrite-once = ( ".*\?(.*)$" => "/index.php?$1", "^/js/.*$" => "$0", "^.*\.(js|ico|gif|jpg|png|css|swf |jar|class)$" => "$0", "" => "/index.php" ) but I couldn't figure out how to make it works in NginX. The webserver run just fine when we use the phpinfo.php test file. However as soon as I point it to my apps, nothing comes up. Check the error.log file and there's no error. Very mind boggling. I spent over 1 week trying to figure it out with no luck.. Please help?

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