Search Results

Search found 3996 results on 160 pages for 'operations'.

Page 108/160 | < Previous Page | 104 105 106 107 108 109 110 111 112 113 114 115  | Next Page >

• Recommended programming language for linux server management and web ui integration

  - by Brendan Martens

  I am interested in making an in house web ui to ease some of the management tasks I face with administrating many servers; think Canonical's Landscape. This means doing things like, applying package updates simultaneously across servers, perhaps installing a custom .deb (I use ubuntu/debian.) Reviewing server logs, executing custom scripts, viewing status information for all my servers. I hope to be able to reuse existing command line tools instead of rewriting the exact same operations in a different language myself. I really want to develop something that allows me to continue managing on the ssh level but offers the power of a web interface for easily applying the same infrastructure wide changes. They should not be mutually exclusive. What are some recommended programming languages to use for doing this kind of development and tying it into a web ui? Why do you recommend the language(s) you do? I am not an experienced programmer, but view this as an opportunity to scratch some of my own itches as well as become a better programmer. I do not care specifically if one language is harder than another, but am more interested in picking the best tools for the job from the beginning. Feel free to recommend any existing projects that already integrate management of many systems into a single cohesive web ui, except Landscape (not free,) Ebox (ebox control center not free) and webmin (I don't like it, feels clunky and does not integrate well with the "debian way" of maintaining a server, imo. Also, only manages one system.) Thanks for any ideas! Update: I am not looking to reinvent the wheel of systems management, I just want to "glue" many preexisting and excellent tools together where possible and appropriate; this is why I wonder about what languages can interact well with pre-existing command line tools, while making them manageable with a web ui.

  Read the article

• Migrating to Amazon AWS etc: What key statistics/questions should be analyzed and asked?

  - by cerd

  I searched SOverflow pretty extensively for something similar to this set of questions. BACKGROUND: We are a growing 'big(ish)' data chemical data company that are outgrowing our lab and our dedicated production workhorses. Make no mistake, we need to do some serious query optimization. Our data (It comes from a certain govt. agency so the schema and lack of indexing is atrocious). So yes, I know, AWS or EC2 is not a silver bullet in the face of spending time to maybe rework your queries/code entirely 'out of the box'. With that said I would appreciate any input on the following questions: We produce on CentOS and lab on Ubuntu LTS which I prefer especially with their growing cloud / AWS integration. If we are mysql centric, and our biggest problem is these big cartesian products that produce slow queries, should we roll out what we know after more optimization with respect to Ubuntu/mySQL with the added Amazon horsepower? Or is there some merit to the NoSQL and other technologies they offer? What are the key metrics I need to gather from apache and mysql other than like: Disk I/O operations, Data up/down avgs and trends and special high usage periods/scenarios? I've reviewed AWS/EC2 fine print, but want 2nd opinions. What other services aside from the basic web/database have proven valuable to you? I know nothing of Hadoop or many other technologies they offer, echoing my prev. question, do you sometimes find it worth it (Initially having it be a gamble aside from basic homework) to dive/break into a whole new environment and try to/or end up finding a way of more efficiently producing your data/site product? Anything I should watch out for in projecting costs, or any other general advice when working with AWS folks from anyone else where your company is very niche and very very technical (Scientifically - or anybody for that matter)? Thanks very much for your input - I think this thread could be valuable to others as well.

  Read the article

• Managing Apache to Compensate for WebDAV's Security Masking

  - by Tohuw

  When a user creates a file via WebDAV, the default behavior is that the file is owned by the user and group running the Apache process, with a umask of 022. Unfortunately, this makes it impossible for unprivileged users to write to the files by other means without being a member of the group Apache runs under (which strikes me as a particularly bad idea). My current solution is to set umask 000 in Apache's envvars and remove all world permissions from the webdav parent directory for the user. So, if the WebDAV share is /home/foo/www, then /home/foo/www is owned by www-data:foo with permissions of 770. This keeps other unprivileged users out, more or less, but it's hokey at best and a security disaster awaiting at worst. From my research and poking around at mod_dav and Apache, I cannot find a reasonable solution short of a cron job flipping all the permissions back (I'd rather not have the load and increased complexity on the server). SuExec won't work, either, because WebDAV operations are not going to execute as a different user. Any thoughts on this? Thank you.

  Read the article

• I Can Edit SD Card on Windows XP but Not on Windows 7

  - by David C

  I have an 8GB SDHC card which I have used to upload pictures onto my Windows XP machine using an SD card reader ("SanDisk Ultra II"). I could also delete pictures and create folders on the card. I recently obtained a new computer that runs Windows 7 and, while I can view and upload the photos, I am unable to delete photos or create folders. When I attempt to do either of these two operations, the desired option does not appear in the menu ("Delete"/"New Folder"). Also, the shortcut keys do not work (e.g. the Delete key and Alt+F+W+F). I have attempted to change the Properties from Read-only, but am greeted with a "media is write protected". I should add that when I insert the Card Reader back into my Windows XP computer, I am granted full write permissions. Why can't I modify the SD Card from Windows 7? And, related, how can I fix this issue? Let me know if you have any additional questions. Thanks!

  Read the article

• How can I fix Office Sharepoint Search service?

  - by unknown (yahoo)

  For some reason, in operations server services, Office Sharepoint Search Service is MISSING! Which means I cant get Shared services working, which in turn I cannot get, and I do not think I have ever got Usage and reporting to see who is visiting my website, counter and with what OS/ browser ETC. I dont think I have ever seen this work in the 2 years trying with sharepoint. So in essense I have two problems, most important SEARCH, second usage reports. When trying to search, all i get is unknown error. Nothing is in my event viewer at all. I have tried http://www.cjvandyk.com/blog/Lists/Posts/Post.aspx?ID=96 , in the comments on that site, on other person reports search is missing entirely and is going to uninstall. Im tired of uninstall sharepoint and resinstalling to fix an odd off issue. I have things setup with Team foundation server that took forever to get work and reinstallation is not my solution. As for usage reporting, this is what microsoft responds to the " Both Windows SharePoint Services Usage logging and Office SharePoint Usage Processing must be enabled to view usage reports. Please contact your administrator to ensure that these services are enabled. " error I cannot do all the steps since SSP needs to be setup which i cant above.

  Read the article

• Why Is Web Sharing Broken on My Mac?

  - by Sam Murray-Sutton

  Background: I use my Mac for web development, running copies of web sites locally. I recently installed the Snow Leopard update, which to all intents and purposes seems to have gone fine, except... What's not working? Web-sharing; more specifically I can't turn it on via preferences. The preference pane just hangs when I try to. So Apache doesn't start on reboot. I can start Apache by hand, but I don't know enough to either setup apache to start with the computer, or to properly fix web sharing. Further details My Apache error log shows nothing on when the system boots up (as I would expect). This is the error message when I try to start web sharing from the sharing preference pane. 28/09/2009 10:58:05 System Preferences[834] setInetDServiceEnabled failed with 1 for org.apache.httpd Here's the messages given when I start apache from the command line. [Mon Sep 28 10:35:53 2009] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] [Mon Sep 28 10:35:54 2009] [warn] mod_bonjour: Skipping user 'sams' - index file /Users/sams/Sites/index.html has zero length. [Mon Sep 28 10:35:54 2009] [notice] Digest: generating secret for digest authentication ... [Mon Sep 28 10:35:54 2009] [notice] Digest: done [Mon Sep 28 10:35:54 2009] [notice] Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8k DAV/2 PHP/5.3.0 Phusion_Passenger/2.2.5 configured -- resuming normal operations Please let me know if you need any further details on this. Any help would be greatly appreciated. UPDATE I have added an answer of my own below - I was able to solve it thanks to being pointed in the right direction by the comments below, so thanks very much. But I'm still not totally clear as to what caused the problem or how my solution addressed it, so I'm leaving the question open for now.

  Read the article

• How do I troubleshoot a slow hard drive?

  - by Bruce Connor

  My computer is suffering of slow-downs and I'm not surprised (it's around 6 years old). Here's what I've verified: They are not very frequent (only a couple of times a day). When they happen a single application will hang for 10-60 seconds, while the rest don't hang but also get slow. Even as it is happening, the CPU usage stays low. It happens to applications (such as text editor, firefox, skype). It never happens to some applications (such as games) which I use for hours under heavy CPU load. Also of note: The Graphics card and PSU are new (around a year). Though I have a decent amount of software installed right now, this was happening even right after I reinstalled Windows. This HDD has been through many partinioning schemes, and a few heavy operations (such as moving around 200GB of data). Because of the above, I am already 70% sure the problem is with the hard drive. Before I replace it, however, I want to rule out other less likely possibilities (such as RAM, software, or PSU). I don't have the money to replace the entire box right now, but I can easily replace one of the components. I've read several questions (such as this one) which give general guidance on troubleshooting an unknown issue, that is not what I'm looking for here. My main question is: What tests or benchmarks can I run to verify I have a problematic hard drive? I don't need to solve this problem, I am content with just making sure it's the hard drive. I could borrow a newer hard drive from a friend and see if it gets better. A positive result would rule out all other components, but it wouldn't rule out a software issue (since this new hard drive won't have any of the software I use daily). Running on Windows/Linux.

  Read the article

• WT-NMP - PHP-CGI randomly stops running with no error log

  - by alexfontaine

  We have recently installed WT-NMP and are currently running Php-Cgi with php 5.4.24. We are running fairly simple php scripts and when testing everything is running fine. Over the weekend we wanted to keep the server running test it over a longer period of time. The server and scripts ran fine all day on Friday, but sometime late on Saturday, the php-cgi stopped running. There are no errors in the error log (C:\WT-NMP\log). In the configuration (php.ini) I have the following options set: error_reporting = E_ALL display_errors = On display_startup_errors = On log_errors = On html_errors = On error_log = "c:/wt-nmp/log/php_error.log" We also have the standard nginx.conf error logs: access_log "c:/wt-nmp/log/nginx_access.log"; error_log "c:/wt-nmp/log/nginx_error.log" warn; So, since the log directory is empty, I am assuming that the running php scripts and general nginx operations are not causing the php-cgi to stop. So my questions are: What else could cause the php-cgi to stop running? Are there any other options for logging that we could turn on that could help us track this down? Are there other log locations that we should be looking at? Thanks!

  Read the article

• Can you configure multiple KMS hosts in a primary / secondary relationship?

  - by Mark Hall

  We have two datacenters in our environment: primary and DR. I need to deploy a KMS service, and to be proactive, I would like to have a host in both datacenters. From what I have read, you can have up to 6 hosts without calling Microsoft, and it appears that what will happen is that a SRV record for each host will be placed in DNS. The client will query for those SRV records and randomly choose a host for the initial activation and will use that same server for all renewals. The server can be changed manually through a script and will automatically change if the initial server is unavailable when activating or renewing. My question is has anyone found a way to designate one server as the primary KMS host and designate the other as failover only? The reason I ask is that it is preferred that the client communicate with the primary datacenter during normal operations and only talk to the DR datacenter when needed because the bandwidth between the offices and the DR datacenter is limited compared to the primary. I am sure that this has been done before but I can not find it MSFT's documentation. Thanks, Mark

  Read the article

• Question for Vim search and peck typists

  - by mike

  I'm trying to write a Vim tutorial and I'd like to start by dismissing a few misconceptions, as well as giving some recommendations. I don't know if I should dismiss touch-typing as a misconception, or include it as a recommended prerequisite. At the time I learned the editor, I had already been touch typing for a couple of years, so I have absolutely no idea what would be the experience of a two-fingered typist in Vim. Are you a vim two-fingered typist? what has your experience been like? EDIT: I'm not sure if my question was clear enough. Maybe it's my fault, I don't know. I get mixed replies and other questions (why do you write this? what does one have to do with the other?), instead of empirical info (I don't touch type and it's been (fine|hell)). Some programmers touch-type others search and peck. In the middle, there's Vim which requires a certain affinity with keys to do various operations. I am a touch typist and I have no clue what my experience would have been like with the editor if I wasn't. I can't honestly picture myself pecking some of these combos. But like I said, I don't know what it is like. Before telling someone to start using Vim, I'd like to know if I should dismiss touch-typing as a misconceived requirement. So, I'll rephrase the question, have you felt that not being a touch-typist has impeded on your experience with Vim?

  Read the article

• How to Refresh or Reset Windows 8 without the System Reserved partition?

  - by Karan

  The article Refresh and reset your PC mentions exactly what happens during the refresh and reset operations in Windows 8: Refresh The PC boots into Windows RE. Windows RE scans the hard drive for your data, settings, and apps, and puts them aside (on the same drive). Windows RE installs a fresh copy of Windows. Windows RE restores the data, settings, and apps it has set aside into the newly installed copy of Windows. The PC restarts into the newly installed copy of Windows. Reset The PC boots into the Windows Recovery Environment (Windows RE). Windows RE erases and formats the hard drive partitions on which Windows and personal data reside. Windows RE installs a fresh copy of Windows. The PC restarts into the newly installed copy of Windows. It is my understanding that Windows RE (Recovery Environment) is included as part of the System Reserved partition created by default on the first hard disk. The size of this partition has gone up to 350 MB from the 100 MB it used to be in Vista/Windows 7, no doubt as a result of adding these features. Now we have already discussed how to skip the creation of this System Reserved partition during Setup. Basically, the same techniques that used to work with Windows 7 work with Windows 8 as well. What I want to know is, what will be the exact repercussions of not having the System Reserved partition in place? I assume Troubleshoot / Advanced options should still be available as before: But what about the Troubleshoot menu itself? Will the Refresh and Reset options disappear? Will they remain but be unavailable? Or possibly they will throw an error if selected? Also, will it be possible to access and successfully execute these options if installation media is available? Anything else that might be affected?

  Read the article

• Apache Config: RSA server certificate CommonName (CN) ... NOT match server name?

  - by mmattax

  I'm getting this in error_log when I start Apache: [Tue Mar 09 14:57:02 2010] [notice] mod_python: Creating 4 session mutexes based on 300 max processes and 0 max threads. [Tue Mar 09 14:57:02 2010] [warn] RSA server certificate CommonName (CN) `*.foo.com' does NOT match server name!? [Tue Mar 09 14:57:02 2010] [warn] RSA server certificate CommonName (CN) `www.bar.com' does NOT match server name!? [Tue Mar 09 14:57:02 2010] [notice] Apache configured -- resuming normal operations Child processes then seem to seg fault: [Tue Mar 09 14:57:32 2010] [notice] child pid 3425 exit signal Segmentation fault (11) [Tue Mar 09 14:57:35 2010] [notice] child pid 3433 exit signal Segmentation fault (11) [Tue Mar 09 14:57:36 2010] [notice] child pid 3437 exit signal Segmentation fault (11) Server is RHEL, what's going on and what do I need to do to fix this? EDIT As requested, the dump from httpd -M: Loaded Modules: core_module (static) mpm_prefork_module (static) http_module (static) so_module (static) auth_basic_module (shared) auth_digest_module (shared) authn_file_module (shared) authn_alias_module (shared) authn_anon_module (shared) authn_default_module (shared) authz_host_module (shared) authz_user_module (shared) authz_owner_module (shared) authz_groupfile_module (shared) authz_default_module (shared) include_module (shared) log_config_module (shared) logio_module (shared) env_module (shared) ext_filter_module (shared) mime_magic_module (shared) expires_module (shared) deflate_module (shared) headers_module (shared) usertrack_module (shared) setenvif_module (shared) mime_module (shared) status_module (shared) autoindex_module (shared) info_module (shared) vhost_alias_module (shared) negotiation_module (shared) dir_module (shared) actions_module (shared) speling_module (shared) userdir_module (shared) alias_module (shared) rewrite_module (shared) cache_module (shared) disk_cache_module (shared) file_cache_module (shared) mem_cache_module (shared) cgi_module (shared) perl_module (shared) php5_module (shared) python_module (shared) ssl_module (shared) Syntax OK

  Read the article

• Are Windows Domain Service Accounts Really Necessary?

  - by Zach Bonham

  One of the biggest problems we have in automating application deployments is the idea that running IIS AppPools and Windows Services under domain service accounts is a 'best practice'. Unfortunately, this best practice sometimes causes deployment headaches in that either we need to provision a new domain level service account quickly, or once we have the account, we now need to manage the account credentials. I had a great conversation about not making domain level service accounts a requirement and effectively taking one of two approaches: Secure at the node level using machine account(domain\machine$) and add the node to appropriate ActiveDirectory/Sql groups/roles Create local app specific accounts on each machine (machine\myapp) and add that account to appropriate ActiveDirectory/Sql groups/roles (the password here can change per deployment, it doesn't need to be stored) In both cases, it seems that its easier to manage either adding an account to appropriate group/role, or even stand up new, local account, than it is to have to provision a new domain level account and manage those credentials. This would hopefully ease the management burden on ActiveDirectory, Sql Server and Operations teams as there would be no more password management. We've not actually been able to implement this in practice yet. I am coming from a development background, so I'm curious as to how many ways this approach could go wrong? Can we really get rid of domain level service accounts with this direction? I'd appreciate any thoughts from anyone who has taken this path! Thanks! Zach

  Read the article

• How can I parse/ transform text log data before it gets captured in SCOM 2007 R2?

  - by Abs

  I'm pretty much a noob with System Center Operations Manager 2007, and I'm probably missing something pretty basic, but I'm stumped anyway. We're setting up monitoring on some of our servers, and we'd like to capture data from some plain text log files (e.g. DNS debug logs, DHCP logs). It looks to me like I can set up a generic text file monitoring rule and get events captured into the main Ops Manager database, but my understanding is that the whole line of text from the plain text log gets captured as one field. In an ideal world, we'd be able to parse or transform that log file data to make it easier to query later. Is this possible? Is it easy? Do I have to buy expensive 3rd-party software to do it? One more thing: it would be even better if there was a way to stuff this data into the Audit Collection Services (ACS) database instead of the main one, but I'll take what I can get. Any help would be greatly appreciated.

  Read the article

• Routing a single request through multiple nginx backend apps

  - by Jonathan Oliver

  I wanted to get an idea if anything like the following scenario was possible: Nginx handles a request and routes it to some kind of authentication application where cookies and/or other kinds of security identifiers are interpreted and verified. The app perhaps makes a few additions to the request (appending authenticated headers). Failing authentication returns an HTTP 401. Nginx then takes the request and routes it through an authorization application which determines, based upon identity and the HTTP verb (put, delete, get, etc.) and URL in question, whether the actor/agent/user has permission to performed the intended action. Perhaps the authorization application modifies the request somewhat by appending another header, for example. Failing authorization returns 403. (Wash, rinse, repeat the proxy pattern for any number of services that want to participate in the request in some fashion.) Finally, Nginx routes the request into the actual application code where the request is inspected and the requested operations are executed according to the URL in question and where the identity of the user can be captured and understood by the application by looking at the altered HTTP request. Ideally, Nginx could do this natively or with a plugin. Any ideas? The alternative that I've considered is having Nginx hand off the initial request to the authentication application and then have this application proxy the request back through to Nginx (whether on the same box or another box). I know there are a number of applications frameworks (Django, RoR, etc.) that can do a lot of this stuff "in process", but I was trying to make things a little more generic and self contained where different applications could "hook" the HTTP pipeline of Nginx and then participate in, short circuit, and even modify the request accordingly. If Nginx can't do this, is anyone aware of other web servers that will perform in the manner described above?

  Read the article

• SQL Server Backup problem when browsing to the directory

  - by Richard West

  I want to allow a group (eg. 'BackupManagers') who can only preform backup and restore operations on certain databases. When creating the BackupManagers user account I checked db_backupoperator. When the user logs in to create a backup they get an error message similar to the following when the select Tasks - Backup - Click on Add in the destiantion block - click on the "..." button to browse TITLE: Locate Database Files - MYSERVER\SQL2005 E:\MSSQL\Backup Cannot access the specified path or file on the server. Verify that you have the necessary security privileges and that the path or file exists. If you know that the service account can access a specific file, type in the full path for the file in the File Name control in the Locate dialog box. I have confirmed that the user has permissions to the folder. I have even created a share to this folder and had them access it through explorer. They are able to create and delete files within the folder. I have found that if they type in the path to the file instead of using the "..." button to browse the directory tree then they can create a backup file fine. Why is the browse button not working as expected? Thanks!

  Read the article

• Software mirroring (RAID1) versus "Fake Raid" for new Windows 7 install

  - by kquinn

  I've just ordered two new hard drives for my main desktop and a copy of Windows 7 Professional 64-bit. I'd like to do a clean install of Win7 onto the new drives (leaving my old XP Pro boot partition around for a while in case something goes disastrously wrong, etc.). I want to have them set up in mirrored (RAID-1) mode. My understanding is that Win7 Pro can do software mirroring, but can I set this up directly at install time? If so, how? Note that I'd like the disk to be split into three partitions (OS/Apps&Data/Bulk data), all of which should be mirrored. Would it be better (more reliable or faster) to use my motherboard's hardware RAID support? My motherboard is an older nVidia nForce 680i SLI, which is not the most stable of motherboards, and I'm not sure how trustworthy its RAID1 configuration might be (or if Win7 could even detect and install onto a hardware-mirrored volume). Also, the performance characteristics of RAID1 are rather different than RAID0 or RAID5, and I'm wondering if Win7's software mirroring might actually be faster than hardware RAID1 (for example, I'm more of a Unix admin when I have to wear the sysadmin hat, and I've had great success deploying ZFS; most hardware RAID1 implementations have to read both disks and compare results to look for data errors, but ZFS can read from only one disk in the mirror and just use the built-in checksum, meaning it can have up to 2x the number of reads in-flight, as long as there's no data corruption). Edit: Okay, my question about whether Windows 7 can do software mirroring has been answered, and it can. I'm still unsure whether Windows software RAID or my motherboard's hardware "fake RAID" function is a better choice, though. Remember, I'm only interested in mirroring -- not the more complicated striping or parity operations that generally show the poor performance of crappy motherboard RAID solutions.

  Read the article

• memcache fast-cgi php apache 2.2 windows 7 creating problems

  - by Ahmad

  hi, i am trying to run memcache, fast-cgi with apache 2.2 + php on a windows 7 machine. if i dont use memcache everything works fine. the moment i disable extension=php_memcache.dll in php.ini everything returns to normal. once i start apache, the apache logs say: [Wed Jan 12 18:19:23 2011] [notice] Apache/2.2.17 (Win32) mod_fcgid/2.3.6 configured -- resuming normal operations [Wed Jan 12 18:19:23 2011] [notice] Server built: Oct 18 2010 01:58:12 [Wed Jan 12 18:19:23 2011] [notice] Parent: Created child process 412 [Wed Jan 12 18:19:23 2011] [notice] Child 412: Child process is running [Wed Jan 12 18:19:23 2011] [notice] Child 412: Acquired the start mutex. [Wed Jan 12 18:19:23 2011] [notice] Child 412: Starting 64 worker threads. [Wed Jan 12 18:19:23 2011] [notice] Child 412: Starting thread to listen on port 80. and after accessing the page [the page just has echo phpinfo()]. i get this error in the error.log [Wed Jan 12 18:20:54 2011] [warn] [client 127.0.0.1] (OS 109)The pipe has been ended. : mod_fcgid: get overlap result error [Wed Jan 12 18:20:54 2011] [error] [client 127.0.0.1] Premature end of script headers: index.php i have php_memcache.dll in my ext directory and httpd.conf is like this: LoadModule fcgid_module modules/mod_fcgid.so FcgidInitialEnv PHPRC "c:/php" FcgidInitialEnv PATH "c:/php;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem;" FcgidInitialEnv SystemRoot "C:/Windows" FcgidInitialEnv SystemDrive "C:" FcgidInitialEnv TEMP "C:/WINDOWS/Temp" FcgidInitialEnv TMP "C:/WINDOWS/Temp" FcgidInitialEnv windir "C:/WINDOWS" FcgidIOTimeout 64 FcgidConnectTimeout 32 FcgidMaxRequestsPerProcess 500 <Files ~ "\.php$>" AddHandler fcgid-script .php FcgidWrapper "c:/php/php-cgi.exe" .php </Files> so the problem has to be related to memcache coz if i disable it, fast-cgi seems to be working fine. any possible reasons for this?? the memcache service is running.. i can check it through control panel-services

  Read the article

• Surprising corruption and never-ending fsck after resizing a filesystem.

  - by Steve Kemp

  System in question has Debian Lenny installed, running a 2.65.27.38 kernel. System has 16Gb memory, and 8x1Tb drives running behind a 3Ware RAID card. The storage is managed via LVM. Short version: Running a KVM guest which had 1.7Tb storage allocated to it. The guest was reaching a full-disk. So we decided to resize the disk that it was running upon We're pretty familiar with LVM, and KVM, so we figured this would be a painless operation: Stop the KVM guest. Extend the size of the LVM partition: "lvextend -L+500Gb ..." Check the filesystem : "e2fsck -f /dev/mapper/..." Resize the filesystem: "resize2fs /dev/mapper/" Start the guest. The guest booted successfully, and running "df" showed the extra space, however a short time later the system decided to remount the filesystem read-only, without any explicit indication of error. Being paranoid we shut the guest down and ran the filesystem check again, given the new size of the filesystem we expected this to take a while, however it has now been running for 24 hours and there is no indication of how long it will take. Using strace I can see the fsck is "doing stuff", similarly running "vmstat 1" I can see that there are a lot of block input/output operations occurring. So now my question is threefold: Has anybody come across a similar situation? Generally we've done this kind of resize in the past with zero issues. What is the most likely cause? (3Ware card shows the RAID arrays of the backing stores as being A-OK, the host system hasn't rebooted and nothing in dmesg looks important/unusual) Ignoring brtfs + ext3 (not mature enough to trust) should we make our larger partitions in a different filesystem in the future to avoid either this corruption (whatever the cause) or reduce the fsck time? xfs seems like the obvious candidate?

  Read the article

• administrator user unable to login, suspicious user accounts "sky$", "admin$"

  - by mks

  I have a Windows 2008 R2 Standard (64 bit) running in a virtual machine. Suddenly from yesterday onwards I am not able to login as administrator. Nobody changed the password. Both in the console as well as using remote desktop I am unable to login. Whenever I login as Administrator I am getting this error: "The user name or password is incorrect" Nothing has changed in the machine and I have logged in the past successfully both through console and via remote desktop several time on the same machine. One strange behaviour I noticed is, I am seeing some additional user accounts if I try to login as other user. The suspicious user account are: sky$ admin$ SUPPORT_388945a0 Is it created by some malware/virus? Or is it some windows hidden account? Microsoft site says that SUPPORT_388945a0 is: The Support_388945a0 account enables Help and Support Service interoperability with signed scripts. This account is primarily used to control access to signed scripts that are accessible from within Help and Support Services. Administrators can use this account to delegate the ability for an ordinary user, who does not have administrative access over a computer, to run signed scripts from links embedded within Help and Support Services. These scripts can be programmed to use the Support_388945a0 account credentials instead of the user’s credentials to perform specific administrative operations on the local computer that otherwise would not be supported by the ordinary user’s account. When the delegated user clicks on a link in Help and Support Services, the script executes under the security context of the Support_388945a0 account. This account has limited access to the computer and is disabled by default. However I am not sure from where this "admin$" and "sky$" came. Anyone has similar experience?

  Read the article

• Adding new SPNs to existing service ids

  - by jmh

  We have a tomcat server using spring-security kerberos to authenticate users to the webpage against active directory. There are around 25 domain controllers. The site has two CNAME based DNS aliases. The site currently has one Service ID with SPNs registered for the DNS A record as well as each of the CNAMEs. While everything is working right now, I don't know how to reliably change this configuration without possible downtime. The reason is that clients cache kerberos tickets: http://www.juniper.net/techpubs/en_US/uac4.2/topics/concept/user-role-active-directory-about.html The 'kerbtray.exe' program is helpful for viewing and deleting Kerberos tickets on the endpoint. Old tickets must be purged from the endpoint if SPNs are updated or passwords are changed (assuming the endpoint still has a cached copy of the ticket from a prior SPNEGO request to the MAG Series device. During testing, you should purge tickets before each authentication request. Description of "klist" program used to inspect/delete cached tickets: http://technet.microsoft.com/en-us/library/hh134826.aspx So if each of the clients (users running windows) who connect to my web server have kerberos tickets that become invalid as soon as I update the SPNs or passwords, how do I ensure changes are seamless? Are there any operations that can be done safely? I can't just ask all of the users to install klist and delete their old tickets.

  Read the article

• LDAP Authentication fails with 500 or 401 depending on bind for Apache2

  - by Erik

  I'm setting up LDAP authentication for our Subversion repository hosted through Apache on a RHEL 5 system. I run into two different issues when I try to authenticate against Active Directory. <Location /svn/> Dav svn SvnParentPath /srv/subversion SVNListParentPath On AuthType Basic AuthName "Subversion Repository" AuthBasicProvider ldap AuthLDAPBindDN "cn=userfoo,ou=Service Accounts,ou=User Accounts,dc=my,dc=example,dc=com" AuthLDAPBindPassword "mypass" AuthLDAPUrl "ldap://my.example.com:389/ou=User Accounts,dc=my,dc=example,dc=com?sAMAccountName?sub?(objectClass=user)" NONE Require valid-user </Location> If I use the above configuration it continually prompts me with the Basic prompt and I have to eventually select Cancel, which returns a 401 (Authorization Required). If I comment out the bind parts it returns 500 (Internal Server Error), griping that authentication failed: [Mon Nov 02 12:00:00 2009] [warn] [client x.x.x.x] [10744] auth_ldap authenticate: user myuser authentication failed; URI /svn [ldap_search_ext_s() for user failed][Operations error] When I perform the bind using ldapsearch and filter for a simple attribute it returns correctly: ldapsearch -h my.example.com -p 389 -D "cn=userfoo,ou=Service Accounts,ou=User Accounts,dc=my,dc=example,dc=com" -b "ou=User Accounts,dc=my,dc=example,dc=com" -w - "&(objectClass=user)(cn=myuser)" sAMAccountName Unfortunately I have no control or insight into the AD part of the system, only the RHEL server. Does anyone know what the hang up is here?

  Read the article

• How should I monitor memory usage/performance in SunOS/Solaris?

  - by exhuma

  Last week we decided to add some SunOS (uname -a = SunOS bbs-sam-belair 5.10 Generic_127128-11 i86pc i386 i86pc) machines into our running munin instance. First off, the machines are pre-configured appliances, so, I want to avoid touching the system too much without supervision of the service provider. But adding it to munin was fairly easy by writing a small socket-service (if anyone is interested, I put it up on github: https://github.com/munin-monitoring/contrib/tree/master/tools/pypmmn) Yesterday, I implemented/adapted the required plugins for our machines. And here the questions start: First, I have not found a way to determine detailed memory usage values. I get the total memory by running prtconf | grep Memory, and the free memory using vmstat. Fiddling together a munin-plugin, gives me the following graph: This is pretty much uninformative. Compare this to the default plugin for linux nodes which has a lot more detail: Most importantly, this shows me how much memory is actually used by applications. So, first question: Is it possible to get detailed memory information on SunOS with the default system tools (i.e. not using top)? Onto the next puzzle: Seeing the graphs, I noticed activity in the "Paging in/out" graphs, even though the memory graph still has unused memory: Upon further investigation, I found out that df reports that /tmp is mounted on swap. Drilling around on the web, I understood that df will display swap, but in fact, it's mounted as a tmpfs. Now I don't know if this explains the swap activity. The default munin-plugin for solaris uses kstat -p -c misc -m cpu_stat to get these values. I find it already strange that this is using the cpu_stat module. So maybe I simply misinterpret the "paging" graphs? Second question: Do the paging graphs indicate that parts of the memory are paged to disk? Or is the activity caused by file operations in /tmp?

  Read the article

• Linux/Unix in Windows

  - by Dmitriy Nagirnyak

  Hi, What would be the best way to get the full-blown Unix/Linux bash inside Windows? I don't mean the Virtual Machine, but rather only the terminal with mounted NTFS drives. This way I could use the power of Unix/Linux still being on Windows. The things I want to be able to do from the terminal: Package management (apt-get in Debian). SSH. File operations (including grub and similar). Run a web server (Apache, nginx) for testing purposes. Easy to use: start terminal - Linux is on, end terminal - Linux is shut down. Would be nice to be able to copy-paste from Windows into Terminal and vice versa. This really feels like a separate OS and I realize that VM would, probably, be the best thing. But I guess it should be possible to have a lighter installation. THE NOTE: I cannot just use Linux because of I still need to do development on Windows. Also I am a Linux noobie - just getting started with it so sorry if asking something obvious/stupid. Thanks, Dmitriy.

  Read the article

• Apache fails to start after WHM easyapache update

  - by Vigrond

  Tryin to get some light shed on this issue Running CentOS I upgraded Apache using easyapache to 2.2 All was well I then used WHM to update Mysql to 5.5 This succeeded but now Apache will not start. The error log was reporting things like [Sun Apr 15 00:44:57 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec) [Sun Apr 15 02:27:30 2012] [warn] pid file /usr/local/apache/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run? [Sun Apr 15 02:27:30 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [alert] getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive [Sun Apr 15 02:27:30 2012] [notice] Apache/2.2.22 (Unix) mod_ssl/2.2.22 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 configured -- resuming normal operations [Sun Apr 15 02:27:30 2012] [alert] Child 4063 returned a Fatal error... Apache is exiting! So I tried to recompile using easyapache again, but easyapache just hangs I tried with base php settings - and it always gets stuck on "bf804000-bf819000 rw-p 7ffffffe9000 00:00 0 [stack]" At this point in cpanel the status says "create srm.conf and access.conf for mod_frontpage" I have tried things like rpm --rebuilddb yum clean all yum update with no luck. I'm kind of running out of ideas, and wondering if anyone could point me to the right direction.

  Read the article

< Previous Page | 104 105 106 107 108 109 110 111 112 113 114 115  | Next Page >