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Search found 31 results on 2 pages for 'luckytaxi'.

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• How do you guys handle custom yum repository?

  - by luckytaxi

  I have a bunch of tools (nagios, munin, puppet, etc...) that gets installed on all my servers. I'm in the process of building a local yum repository. I know most folks just dump all the rpms into a single folder (broken down into the correct path) and then run createrepo inside the directory. However, what would happen if you had to update the rpms? I ask because I was going to throw each software into its own folder. Example one, put all packages inside one folder (custom_software) /admin/software/custom_software/5.4/i386 /admin/software/custom_software/5.4/x86_64 /admin/software/custom_software/4.6/i386 /admin/software/custom_software/4.6/x86_64 What I'm thinking of ... /admin/software/custom_software/nagios/5.4/i386 /admin/software/custom_software/nagios/5.4/x86_64 /admin/software/custom_software/nagios/4.6/i386 /admin/software/custom_software/nagios/4.6/x86_64 /admin/software/custom_software/puppet/5.4/i386 /admin/software/custom_software/puppet/5.4/x86_64 /admin/software/custom_software/puppet/4.6/i386 /admin/software/custom_software/puppet/4.6/x86_64 Ths way, if I had to update to the latest version of puppet, I can save manage the files accordingly. I wouldn't know which rpms belong to which software if I threw them into one big folder. Makes sense?

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• Why should I use cobbler over normal PXEBOOT server?

  - by luckytaxi

  Maybe it's me but I find it easier to manage my simple pxeboot server just by editing the default file under /tftpboot/pxelinux.cfg. I have my kickstart file available over NFS along with the DVD extracted to a centralize mount point. Other than PXEBOOT, what benefit would I get from running cobbler? It was confusing at first but I finally got the hang off it. The only benefit I see is being able to force a server to install an OS on demand. Anything else?

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• Apple XRaid questions

  - by luckytaxi

  I inherited an environment with a couple of apple xraid san. 1 - I have a 14 drive setup that's split into 5 LUNs on EACH side. The SAN goes into a fibre switch along w/ the servers that are attached to it. LUN masking is enabled on the SAN and as far as I know, there aren't any zoning on the fibre switch. Question, I have a server that's assigned two LUNs, one from each side of the controller. For some reason, it only sees one LUN (from the upper controller) and it doesn't see the one from the lower controller. The controller seems to be working fine as I have other servers attached to LUNs on the lower controller. 2 - I see a little "disclaimer" saying that any changes to the xraid will result in a reboot. So, if I add/remove hosts, this thing is going to reboot?!?!?!

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• Creating yum repo

  - by luckytaxi

  I followed this link on how to create my own yum repository for base install and update purposes. If you notice, why would I need a 5 folder on top of 5.4? My installation at the moment is all 5.4, so when I ran "yum update" it wanted to go to http://domain.com/5/... instead of picking up the 5.4 directory. Is 5 basically 5.4 w/ the most updated packages for that tree? meaning, if 5.5 comes out, 5 would be the latest and greatest and if I wanted to track 5.4, I would still need a 5.4 folder to track changes with?

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• Why is this file hidden when you run ls?

  - by luckytaxi

  For a few weeks now I couldn't figure out why I wasn't able to delete this one particular file. As root I can, but my shell script runs as a different user. So I go run ls -la and it's not there. However, if I call it as a parameter, it shows up! Sure enough, the owner is root, hence I'm not able to delete. Notice, 6535 is missing ... [root@server]# ls -la 653* -rw-rw-r-- 1 svn svn 24002 Mar 26 01:00 653 -rw-rw-r-- 1 svn svn 7114 Mar 26 01:01 6530 -rw-rw-r-- 1 svn svn 8653 Mar 26 01:01 6531 -rw-rw-r-- 1 svn svn 6836 Mar 26 01:01 6532 -rw-rw-r-- 1 svn svn 3308 Mar 26 01:01 6533 -rw-rw-r-- 1 svn svn 3918 Mar 26 01:01 6534 -rw-rw-r-- 1 svn svn 3237 Mar 26 01:01 6536 -rw-rw-r-- 1 svn svn 3195 Mar 26 01:01 6537 -rw-rw-r-- 1 svn svn 27725 Mar 26 01:01 6538 -rw-rw-r-- 1 svn svn 263473 Mar 26 01:01 6539 Now it shows up if you call it directly. [root@server]# ls -la 6535 -rw-rw-r-- 1 root root 3486 Mar 26 01:01 6535

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• Automating and deploying new linux servers

  - by luckytaxi

  I'm in the process of developing a method to automate new virtual machines into my environment. 90% of our machines are virtual but the process is similar for both physical and vmware based images. What I do now is I use cobbler to install the base OS. The kickstart script has post hooks to modify the yum repo and installs puppet and func. Once the servers are running, I manually add them into nagios and sign the certificate via the puppetmaster. I've since migrated most of the resources to use mysql as the backend. I wanted to see what others are doing and my goal for 2011 is to have puppet inventory the hardware into mysql, and somehow i'll script a python script to have nagios grab the info and automatically add it for monitoring purposes. It's kind of tedious to have to add each new server into nagios, puppet's dashboard, munin, etc...

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• Converting software RAID1 to RAID10 for /boot

  - by luckytaxi

  Array info: /dev/md0 - /dev/sda1 and /dev/sdb1 /dev/md2 - /dev/sda2 and /dev/sdb2 Partition info: /boot - /dev/md0 / - /dev/md1 I have two drives that are setup as RAID1 using software RAID on Redhat. I added two additional drives (same size) and I would like to conver the RAID1 to a RAID10. The problem I'm having is adding the last drive to the array. I've gotten as far as creating a RAID10 with two missing devices but as soon as I add the last drive, all hell breaks loose. It seems /dev/sda1 is the culprit. What I'm not too sure about is how to create the RAID10. I've tried the following mdadm --create /dev/md2 --level=raid10 --raid-device=4 /dev/sdc1 missing /dev/sdd1 missing I then proceeded to fail /dev/sdb1 from /dev/md0 and added that partition to /dev/md2. I proceeded to install the MBR on EACH partition since boot resides on /dev/sdx1 on each drive. As a test, all is well, I'm able to boot back into the system once I do a quick reboot. Now, when I go add the last drive /dev/sda1, it breaks. I attempted to install grub on /dev/sda1 and I get the following ... grub> root (hd0,0) /dev/sda root (hd0,0) /dev/sda Filesystem type is ext2fs, partition type 0xfd grub> setup (hd0) setup (hd0) Checking if "/boot/grub/stage1" exists... no Checking if "/grub/stage1" exists... no Error 2: Bad file or directory type At this point, the array is hosed I believe. I rebooted the server and it refuses to boot.

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• Do I have to chmod 777 my NFS folder when I share?

  - by luckytaxi

  Under Redhat, if I export a folder as an NFS mount, does the folder have to have RW for users/groups/others? Right now /storage/software is -rwxr-xr-x root/root i.e. /etc/exportfs /storage/software *(rw,sync) On my client, I can mount but I can't write. I'm using a regular user and NOT root. I think "no_root_squash" fixes it but I really don't want that. Then again, nor do I want to have to chmod 777 the folder on the server.

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• Restore files from certain increments using Duplicity

  - by luckytaxi

  Given the following backup sets ... Found primary backup chain with matching signature chain: ------------------------- Chain start time: Tue Jun 21 11:27:26 2011 Chain end time: Tue Jun 21 11:27:59 2011 Number of contained backup sets: 2 Total number of contained volumes: 2 Type of backup set: Time: Num volumes: Full Tue Jun 21 11:27:26 2011 1 Incremental Tue Jun 21 11:27:59 2011 1 If i run the following command, it works (1308655646 was converted from Tue Jun 21 11:27:26 2011): duplicity --no-encryption --restore-time 1308655646 --file-to-restore ORIG_FILE \ file:///storage/test/ restored-file.txt However, if I run the following command, it restores the from the latest set. duplicity --no-encryption --restore-time 2011-06-21T11:27:26 --file-to-restore \ ORIG_FILE file:///storage/test/ restored-file.txt What am I doing wrong w/ the time? I prefer the second option only because I don't want to have to do the conversion manually.

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• Using Puppet, is it possible to define which plugins gets sync with a particular client?

  - by luckytaxi

  I have a plugin that gets pushed to all clients. However, I have one that's specific to a particular module, hence I don't want it synced with all my clients. My generic plugin is stored in /etc/puppet/modules/custom/lib/facter but I have a plugin stored inside a module that seems to be pushed to all clients regardless if the host inherits the class or not. Location of module: /etc/puppet/modules/apache/lib/facter/SAMPLE_PLUGIN.rb

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• Help me understand how Xen vCPU/CPU works

  - by luckytaxi

  Say I have a Dual-Core server, that's 4 cores w/ two physical processors. I read numerous articles that states the dom0 should get one physical core to itself. By core, does that mean a single CPU core or one of the 4 logical cores? Ideally I would like to dedicate a single CPU core (2 logical) to the dom0. Then I would give the other CPU split between the 3 VMs. I've seen examples where ppl would assign more than the available number of cores to a VM and I don't know what good that would do. I mean, why would I want to assign 4 vCPU to a single VM when I only have 2 available (if my math is correct)? I assume I only have 2 available from the one core as I've given dom0 a CPU to itself.

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• Ganglia multicast with clustering

  - by luckytaxi

  Let's say I have two hosts. One acts as the server where gmetad and a local gmond resides. It also has the web interface. I then have a client that only has gmond configure as follows. Anyways, everything works fine if i remove the mcast_join line from the udp_recv_channel If I leave it as is the UI doesn't show any hosts. I'm following the quick start guide found here In my gmond.conf file i have the following. udp_send_channel { mcast_join = host1 port = 8661 ttl = 1 } udp_recv_channel { port = 8661 retry_bind = true mcast_join = host1 bind = host1 } In my gmetad.conf file i have. data_source "Infrastructure" host1:8661 host2:8661

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• Proper way to partition filesystem with Xen

  - by luckytaxi

  I'm coming from a vmware environment, wanting to play with Xen. I have a server with 2 x 500G SATA drives (no hardware RAID available, have to use software-based RAID1). My partitions are all RAID1 except for swap. I left a little over 400G for my VMs and I would like to use LVM for the disk images. For domU's swap, should I allocate that from the 400G or should that be coming from dom0's partition? I asked because I've seen numerous config options that shows either or.

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• Grab latest version of PHP by URL? [closed]

  - by luckytaxi

  I'm unable to find the directory listing of all PHP packages. I'm basically looking for the latest stable version of 5.3 utilizing some sort of script that will go out and check PHP's website. If I can get a directory listing (can't seem to find one), I can do the rest. Figured it out but seeing that someone else posted something similar but for Apache, he got blasted for puttig it on Stackoverflow. I figure I would save myself the trouble and post it here.

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• Proper way of deleting records with Codeigniter

  - by luckytaxi

  I came across another Stackoverflow post regarding Get vs Post and it made me think. With CI, my URL for deleting a record is http://domain.com/item/delete/100, which deletes record id 100 from my DB. The record_id is pulled via $this->uri->segment. In my model I do have a where clause that checks that the user is indeed the owner of that record. A user_id is stored in a session inside the DB. Is that good enough? My understanding is, POST should be used for one time modification for data and GET is for retrieving regards (e.g. viewing an item or permalink).

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• Clarification on recaptcha

  - by luckytaxi

  Um so I was in for a little bit of a surprise tonight. I spent a good 20 mins trying to figure out why I was able to submit a form knowing that what I entered into the recaptcha field was invalid. Is it true that you don't need to input the exact words it displays? If it shows me two words and I misspelled one of the words, I still pass validation? Same goes if "hello world" and I input "hell man" it still works.

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• recaptcha still submits form when one word invalid

  - by luckytaxi

  Um so I was in for a little bit of a surprise tonight. I spent a good 20 mins trying to figure out why I was able to submit a form knowing that what I entered into the recaptcha field was invalid. Is it true that you don't need to input the exact words it displays? If it shows me two words and I misspelled one of the words, I still pass validation? Same goes if "hello world" and I input "hell man" it still works.

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• Proper way of utilizing gearman with my php application.

  - by luckytaxi

  For now I just want to use Gearman for background processing. For example, I need to email a recipient that they have a private message waiting for them once the sender submits their message into the DB. I assume I can run the worker/client and server on my primary server but I have no problems offloading some of the tasks to a different web server. Anyways, my question is how do I handle multiple "functions?" Let's say I need a job that handles the email portion and a job to handle image manipulation. Can I have multiple functions in the worker? I've followed a couple of examples I found online but each example only shows one function being initialized. Do I have to start up multiple "workers" to handle multiple functions?

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• How to keep track of a private messaging system using MongoDB?

  - by luckytaxi

  Take facebook's private messaging system where you have to keep track of sender and receiver along w/ the message content. If I were using MySQL I would have multiple tables, but with MongoDB I'll try to avoid all that. I'm trying to come up with a "good" schema that can scale and is easy to maintain. If I were using mysql, I would have a separate table to reference the user and and message. See below ... profiles table user_id first_name last_name message table message_id message_body time_stamp user_message_ref table user_id (FK) message_id (FK) is_sender (boolean) With the schema listed above, I can query for any messages that "Bob" may have regardless if he's the recipient or sender. Now how to turn that into a schema that works with MongoDB. I'm thinking I'll have a separate collection to hold the messages. Problem is, how can I differentiate between the sender and the recipient? If Bob logs in, what do I query against? Depending on whether Bob initiated the email, I don't want to have to query against "sender" and "receiver" just to see if the message belongs to the user.

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• How to deploy code using git

  - by luckytaxi

  I have a bare repository initialize on my webserver. I code on my workstation and I'm able to push/pull/commit changes to it. Now, I want to deploy this code on the webserver but into my apache directory (/var/www/html). If I wanted to track the changes (only pull no push) from this directory, should I clone the repo first? This way I can make changes locally, then commit and push to "central repo" and then pull from the documentroot folder to see the changes in "prod."

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• If/else isn't working properly

  - by luckytaxi

  I have a validation function I'm using inside of codeigniter. function valid_image() { if ( ($_FILES["file"]["type"] != "image/jpeg") || ($_FILES["file"]["type"] != "image/gif") ) { $this->form_validation->set_message('valid_image', 'Wrong file type..'); return false; } else { return true; } With just the "image/jpeg" part in the if statement it works fine. If I try to upload anything other than a jpg file it fails. If I run the code above, it fails with both a jpg or a gif file. And before someone says "why not use the upload class," I can't. I'm saving my pics directly into MongoDB, so the upload class doesn't help much.

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• How to properly use Gearman with my PHP application?

  - by luckytaxi

  For now I just want to use Gearman for background processing. For example, I need to email a recipient that they have a private message waiting for them once the sender submits their message into the DB. I assume I can run the worker/client and server on my primary server but I have no problems offloading some of the tasks to a different web server. Anyways, my question is how do I handle multiple "functions?" Let's say I need a job that handles the email portion and a job to handle image manipulation. Can I have multiple functions in the worker? I've followed a couple of examples I found online but each example only shows one function being initialized. Do I have to start up multiple "workers" to handle multiple functions?

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• Calculating future date with strtotime doesn't work properly.

  - by luckytaxi

  If I run "this saturday" into strtotime function it shows 4/3/2010 as the date. Why does it not show 4/10?

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• Increment session variable by one

  - by luckytaxi

  How the heck do I increment a variable that's inside a session? If I declare $attempt, each time a user unsuccessfully attempts to login, I want $attempt to increase by 1. In the event it gets to 3, display a captcha. This doesn't seem to work. :-P $this->session->set_userdata('attempt',$this->attempt++);

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• How to schedule emails to send out

  - by luckytaxi

  Using PHP, I have a query that goes through my DB looking for pending tasks with reminder triggers at certain times of the day. I have a cronjob that runs every 10 mins and checks the DB for any rows that has "remind_me" field set to go off within the next 10 mins. If it does find something, what's the best way to queue an email with the task information? I guess I'll need some sort of message queue system, but how does the email part work? Will I need another cronjob that runs every minute to check the queue system?

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