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  • How to send mail with PHP [migrated]

    - by roth66
    My litle problem is about mail() function in PHP, it doesnt want to send emails, to my local server, or anywhere else. I don't think that function was supposed to send mail to adresses like: [email protected]; So I've installed a mail server: hmailserver, I installed a client: dream-mail; I installed sendmaill.exe; (actually unzipped it in a folder, then in php.ini set the sendmail_path to point to it) After countless trials and errors, it still doesn't work. my system would comprise in an Apache server 2.2, and PHP (last version I think 5.3 or somehing), running on windows. And now for avoiding the usual questions (Did you make rules in your firewall etc etc), I guess I should mention, that there arent any connectivity issues, everything is set to "local" (localhost), port 25, 110, 143, are all opened, And, after a few days of fiddling with my brand new mail-server, I manage to make it work. THe Dream-mail client, has a test, trough which it would test its connections, and according to it, the SMTP AND POP3 connections are all successful, it even sends an email, for testing. SO ya, it would work. The problem, remains: PHP mail funcion. And I really need it, since on my website there's a contact form, and right now is useless. I've also checked the form it self, and seems to be alright.

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  • Server Manager from Windows 2008 to Hyper-V 2008 R2?

    - by Roger Lipscombe
    My workstation is running Windows Server 2008. I do not have local admin privileges. I have a Hyper-V Server 2008 R2 (i.e. Core+Hyper-V) box. On that box, I do have local admin privileges. I can Remote Desktop to the box; Hyper-V Manager works fine (outside of Server Manager). It's just that there are some things that are easier to do in Server Manager (partition disks, etc.) than at the command line. I'd like to use Server Manager on my workstation to manage the Hyper-V box. However: When I run Server Manager on my workstation, it prompts for elevation, and won't then let me connect to another server. If I attempt to run MMC and then add "Server Manager" as a Snap-in, it doesn't prompt me for the server name. Then it complains that I'm not an Administrator. It doesn't provide for connecting to another server. The Remote Server Administration Tools (RSAT) are for Windows Vista and Windows 7 RC. These don't install on Windows 2008.

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  • Libraries merged folder views

    - by Stigma
    So I pretty much love the Windows 7 Libraries feature, and saw one use for them that I thought would be perfect, but I can't seem to manage it. Basically, a merged view of different folder structures. Suppose I make a new generic library and add three locations to it: C:\Test\, D:\Test\ and D:\temp\Test\. Now, these may look somewhat okay as long as there are no duplicates in these folders. (It wants to group them based on the included directory, which one can work around by looking on google - I don't have the precise trick on hand I am afraid.) But when you get collisions and, say, two of those directories have a Sub directory in them, stuff becomes unusable (assuming Arrange by: Folder view). You'll have multiple folders listed named Sub, which is pretty useless when looking for data. I want folders to get 'merged', which ought to be possible somehow since it can create these merged views based on artist, album etc in other views. So all subdirectories that are double (and recursively checking for doubles inside those, etc) ought to be merged for as far the View is concerned. If files have a collision, I don't really care what happens - hide one, show both, filter out duplicates, whatever. (Although an option would be nice...) Anyhow, is there anyone who knows how to get such a 'merged folder structure' functionality for Libraries? It would be really useful for me.

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  • How can I recover a Fedora 12 installation that is showing signs of disk errors?

    - by Bob Cross
    I am currently overseas (i.e., very far from my normal library of tools) and my primary machine that would normally act as the data server in the performance test that we're trying to run is failing to boot to Fedora 12 properly. This is a machine that, as of yesterday, was booting fine. However, this morning, very strange portions of the boot process were complaining with messages such as "unexpected 0x0 in rpcbind" and "bad file descriptor" (I don't have the error in front of me - scavenged a windows installation to get onto serverfault). Eventually, the boot hung for a long time at the NFS service and then brought up what looked like the KDE login screen but neither the mouse nor keyboard functioned. In olden days, I would try to get to a point where I could manage to run fsck and pray that the bad sectors would come back into alignment just long enough for me to scrape the critical data off of the machine. However, now that we live in the future, it seems like our options in situations like this should be a little more varied. Is there a way to recover a Fedora 12 installation with bad disk sectors that won't boot properly? For completeness, I am comfortable working with bootable recovery distros-on-CD and such but I don't know which one is likely to work best with modern Fedora. In the absence of guidance, I'm frantically torrenting the Fedora 12 Live CD and DVD, hoping to try rescue mode before tomorrow morning.

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  • Cisco ASA user authentication options - OpenID, public RSA sig, others?

    - by Ryan
    My organization has a Cisco ASA 5510 which I have made act as a firewall/gateway for one of our offices. Most resources a remote user would come looking for exist inside. I've implemented the usual deal - basic inside networks with outbound NAT, one primary outside interface with some secondary public IPs in the PAT pool for public-facing services, a couple site-to-site IPSec links to other branches, etc. - and I'm working now on VPN. I have the WebVPN (clientless SSL VPN) working and even traversing the site-to-site links. At the moment I'm leaving a legacy OpenVPN AS in place for thick client VPN. What I would like to do is standardize on an authentication method for all VPN then switch to the Cisco's IPSec thick VPN server. I'm trying to figure out what's really possible for authentication for these VPN users (thick client and clientless). My organization uses Google Apps and we already use dotnetopenauth to authenticate users for a couple internal services. I'd like to be able to do the same thing for thin and thick VPN. Alternatively a signature-based solution using RSA public keypairs (ssh-keygen type) would be useful to identify user@hardware. I'm trying to get away from legacy username/password auth especially if it's internal to the Cisco (just another password set to manage and for users to forget). I know I can map against an existing LDAP server but we have LDAP accounts created for only about 10% of the user base (mostly developers for Linux shell access). I guess what I'm looking for is a piece of middleware which appears to the Cisco as an LDAP server but will interface with the user's existing OpenID identity. Nothing I've seen in the Cisco suggests it can do this natively. But RSA public keys would be a runner-up, and much much better than standalone or even LDAP auth. What's really practical here?

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  • Managing an application across multiple servers, or PXE vs cfEngine/Chef/Puppet

    - by matt
    We have an application that is running on a few (5 or so and will grow) boxes. The hardware is identical in all the machines, and ideally the software would be as well. I have been managing them by hand up until now, and don't want to anymore (static ip addresses, disabling all necessary services, installing required packages...) . Can anyone balance the pros and cons of the following options, or suggest something more intelligent? 1: Individually install centos on all the boxes and manage the configs with chef/cfengine/puppet. This would be good, as I have wanted an excuse to learn to use one of applications, but I don't know if this is actually the best solution. 2: Make one box perfect and image it. Serve the image over PXE and whenever I want to make modifications, I can just reboot the boxes from a new image. How do cluster guys normally handle things like having mac addresses in the /etc/sysconfig/network-scripts/ifcfg* files? We use infiniband as well, and it also refuses to start if the hwaddr is wrong. Can these be correctly generated at boot? I'm leaning towards the PXE solution, but I think monitoring with munin or nagios will be a little more complicated with this. Anyone have experience with this type of problem? All the servers have SSDs in them and are fast and powerful. Thanks, matt.

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  • AD domain on web servers behind NAT - DNS issues?

    - by Ant
    I'm trying to setup an AD domain to manage the security between two Windows Server 2008 webservers that will sooner or later use NLB to balance website requests. I've hit a problem which I think is a simple solution and is down to DNS. My website domain is mydomain.com. The two servers are running behind a NAT firewall on the 10.0.0.0 IP range. I've setup the AD domain to be called ad.mydomain.com (as recommended by MS and a few other answers to questions on here). The second web server however doesn't want to join the domain, and gives an error pinning the problem on DNS - "ensure that the domain name is typed correctly" even though it queries the SRV record successfully and gets the correct DC back - dc.ad.mydomain.com. Doing a dcdiag /test:dns on the DC gives the Delegation error 'DNS Server dc.mydomain.com Missing glue A record'. I have a feeling I need to add something to the public DNS so that it in some way knows about ad.mydomain.com. Can anyone suggest whether I'm on the right track in adding something to the public DNS? Or whether it's something else? Many thanks

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  • Sharp mx2600 driver cannot see all the paper trays

    - by Frank R
    I am wondering if someone might have experienced this problem and have a solution. I have just taken over a network about a month ago so it is hard to know what truly worked and didn't work. However the end users reported that they used to be able to choose the tray they wanted to print from in the printer preferences in the driver for the Sharp MX2600n device then send the print job. Now they only have two trays to choose from instead of the four trays that exist. The only thing I have changed that might relate to this network device is the Admin password on the domain controller. I haven't made any changes to the Sharp device or the driver, until recently when I tired to update the driver for this device but that didn't fix anything. The domain controller is a Server 2008 VM running in Hyper-visor and it is pushing the shared printer out to the domain. I have looked at the web interface to manage the device and I can see all four paper trays in there, however if I try to see the number of trays from the driver interface, I can only see the top two paper trays and there should be four of them. This is the same with the admin account on the server or a workstation inside the domain, also a standard user account see's the same result. I have even tried updating the tray status within the driver to show more trays, but that doesn't help. I am hoping there is someone out there that has experienced this problem and knows a solution.

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  • Excel Help: Data Input Help

    - by B-Ballerl
    Everyday I download data from a site that will have rows each filled with individual data for clients. I'm able to input the data into excel as a whole but after that I'm having trouble figuring out how to put it into a chart. For example Web visits time. So say Client 1 stayed for 5 min increasing his total time on the site to 20 min and Client 2 stayed for 0 min keeping his time of 10 min and they were both registered on new years eve, and R1's last login was today and R2's was yesterday. (R for some reason repersents Client, no idea why...). Client 3 hasn't been on since he registered keeping his total at 4 min So my data would look something like this for Today (20110104) R1,20101231,20110104,20 R2,20101231,20110103,10 R3,20101231,20101231,4 And this for the day before (201101030), R1,20101231,20110102,15 R2,20101231,20110103,10 R3,20101231,20101231,4 I get about 200+ client rows each day where even the names of the Client list are changing. Is it possible to import the data each day and fill it in a excel sheet where the Client number is off on the left hand side in a table, and the amount of time (Whole Number ex. 4) each day it spends on the site extend to the right under it's specific date see Picture? I've manage to create a manual sheet but have been unsucessful at getting excel to do any of it for me. Here are two pictures:

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  • fcgiwrap listening to a unix socket file: how to change file permissions

    - by user36520
    I have a web server (nginx) and a CGI application (gitweb) that is ran with fcgiwrap to enable Fast CGI access to it. I want the Fast CGI protocol to take place over a unix socket file. To start the fcgiwrap daemon, I run: setuidgid git fcgiwrap -s "unix:$PWD/fastcgi.sock" (this is a daemontools daemon) The problem is that my web server runs as the user www-data and not the user git. And fcgiwrap creates the socket fastcgi.sock with user git, group git and read only fort the non owner. Thus, nginc with the user www-data can't access the socket. Apparently, fcgiwrap is not able to select permissions of unix socket files. And this is quite annoying. Moreover, if I manage to have the socket file exists before I run fcgiwrap (which is quite difficult given I did not find any shell command to create a socket file), it quits with the following error: Failed to bind: Address already in use The only solution I found is to start the server the following way: rm -f fastcgi.sock # Ensure that the socket doesn't already exists (sleep 5; chgrp www-data fastcgi.sock; chmod g+w fastcgi.sock) & exec setuidgid git fcgiwrap -s "unix:$PWD/fastcgi.sock" Which is far from the most elegant solution. Can you think of anything better ? Thanks

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  • How To Find Reasons of Why Site Goes Online/Offline

    - by HollerTrain
    Seems today a website I manage has been going online and offline throughout the entire day. I have no idea what is causing the issue so I am seeking guidance on where to start. It is a Wordpress based site. So here is what I DO know: I use a program that pings the server every minute and when the server is not responding me it emails me, so I can know exactly when the site is online and offline. The site between 8pm to 12pm 12.28, and around the 1a hour early morning 12.29 (New York City timezone, and all times below are in same timezone). At the time of the ups/downs I see a lot of strain on the memory usage. Look at the load average when the site is going online/offline (http://screencast.com/t/BRlfXkqrbJII). Then I ran this command to restart http (http://screencast.com/t/usVtYWZ2Qi) and the memory usage then goes down to this (http://screencast.com/t/VdTIy3bgZiQB). An hour after I restarted http, the site then went offline/online so restarting the http didn't do much help. When the site is going offline/online, I ran the top command and get this (http://screencast.com/t/zEwr7YQj3). Here is a top command when the site is at it's lowest (http://screencast.com/t/eaMfha9lbT - so this would be dubbged "normal"). Here is a bandwidth report (http://screencast.com/t/AS0h2CH1Gypq). The traffic doesn't seem to be that much (http://screencast.com/t/s7hrWNNic1K), but looking at my times the site is going up/down this may be one of the reasons? I have the dvp Nitro package at Media Temple (http://mediatemple.net/webhosting/nitro/). So at this point I would request some help in trying to figure out what the cause of this is, and how I can go about pinpointing this issue. ANY HELP is greatly appreciated.

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  • Dell 2970 - HP 1/8 G2 autoloader keeps falling off LSI 2032 SCSI chain

    - by middaparka
    I've a somewhat irritating problem with a Dell 2970 that has a HP 1/8 G2 autoloader (the Ultrium LTO 2 model) attached to the Dell/LSI 2032 non-RAID SCSI card. In essence, sometimes the autoloader/drive completely fails to appear on the SCSI chain (i.e.: there's neither a media changer or tape drive present within the device manager) and sometimes it appears but then subsequently disappears at a seemingly random (yet always inconvenient) time, resulting in backup failures. On most occasions, there are simply no errors logged in the system event log, but I did manage to capture a series of LSI_SCSI event ID 11 ("The driver detected a controller error on \Device\RaidPort0") errors followed by an event ID 129, ("Reset to device, \Device\RaidPort0, was issued") error during testing. I've tried two different cables, both with the same effect – sometimes the autoloader appears (for a while), sometimes it's completely absent. There's only one terminator I've tried to use, but as I've since successfully tested the autoloader on multiple occasions (albeit via a Adaptec U160 card on a different machine), my gut feel is that the issue doesn't lie with the terminator, or indeed the autoloader itself. As such, I'm just wondering if anyone has any ideas? It's most likely not relevant, but this is all under Windows SBS 2008, running Backup Exec 12.5 SBS edition (the Dell version), both fully patched. Addidtionally, the autoloader is running the latest firmware. It's been a while since I've dealt with anything SCSI, so all suggestions will be gratefully, gratefully received.

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  • Overriding vhost.conf to always allow PHP include access to directory

    - by Jeremy Dentel
    My predecessor in my job developed a simplistic newsletter system for our school's newspaper utilizing PEAR's Mail package. As I grow this system (and our site) we are constantly stuck with Plesk rewriting the vhost.conf file in which the PEAR include path has been manually entered. This has become an unwieldy task to actually manage and keep running. There's been a "note" from both the previous developer and I to attempt to solve this problem, but we can't entirely figure it out. I'm attempting a move to cPanel through another host, so hopefully it'll go away there, but until then, it can be tedious extremely difficult to get a solid uptake of the system without constant "web-presence." I've searched around and haven't found a solution. I'm rather new to the server management scene (command line was non-existant till around a year ago. =/), so I haven't found anything. Any help would be useful. "Similar Questions" popped this up, but it still seems to rely on vhost.conf, and will still allow changes within Plesk to overwrite the changes.

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  • Active Directory Password Formats

    - by Brent Pabst
    Hi, I'm working on an open source project that will manage active directory users. I am looking for feedback from Windows/Active Directory Admins on the formats of usernames they prefer or their organization uses. I want to make sure the software allows admins to use the most popular formats when new users are created. Here is the list I have so far: 1. <firstname><lastname> 2. <lastname><firstname> 3. <lastname><firstinitial> 4. <lastname><firstinitial><middleinitial> 5. <firstinitial><lastname> 6. <firstinitial><middleinitial><lastname> 7. <firstname><lastinitial> In addition how do you handle multiple identical names? So if two John Smith's exist do you append a numeric number, or interject a middle initial or name to solve the problem? Thanks for the feedback

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  • RAID administration in Debian Lenny

    - by Siim K
    I've got an old box that I don't want to scrap yet because it's got a nice working 5-disk RAID assembly. I want to create 2 arrays: RAID 1 with 2 disks and RAID 5 with the other 3 disks. The RAID card is Intel SRCU31L. I can create the RAID 1 volume in the console that you access with Ctrl+C at startup. But it only allows for creation of one volume so I can't do anything with the 3 remaining disks. I installed Debian Lenny on the RAID 1 volume and it worked out nicely. What utilites could I now use to create/manage the RAID volumes in Debian Linux? I installed the raidutils package but get an error when trying to fetch a list: #raidutil -L controller or #raidutil -L physical # raidutil -L controller osdOpenEngine : 11/08/110-18:16:08 Fatal error, no active controller device files found. Engine connect failed: Open What could I try to get this thing working? Can you suggest any other tools? Command #lspci -vv gives me this about the controller: 00:06.1 I2O: Intel Corporation Integrated RAID (rev 02) (prog-if 01) Subsystem: Intel Corporation Device 0001 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Step ping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort - <MAbort- >SERR- <PERR- INTx- Latency: 64, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 26 Region 0: Memory at f9800000 (32-bit, prefetchable) [size=8M] [virtual] Expansion ROM at 30020000 [disabled] [size=64K] Capabilities: <access denied> Kernel driver in use: PCI_I2O Kernel modules: i2o_core

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  • Can any postfix guru assist me determine how emails are still being sent via my server from unauthorized sources?

    - by Dave
    Hi all, I'm getting a little concerned as I run a small server hosting a number of websites and manage the email for a few dozen people. Just recently though I've had a couple of notifications from spamcop alerting me that spam has been sent from my server, and when I have a look over the logs from time to time I can indeed see that there are many repeated attempts of mail being sent from my server. Most of the time it gets knocked back from the destination servers but sometimes its getting through. Unfortunately I'm not linux or postfix expert, I can get by but had though I had my machine locked down quite securely, I don't allow relaying, when I check the online DNS/MX tools they tend to report my server as being OK so I'm not sure where to take it now and hoping someone might be able to throw me a few pointers. I get lots of entries like this in my MAIL.INFO log Jan 2 08:39:34 Debian-50-lenny-64-LAMP postfix/qmgr[15993]: 66B88257C12F: from=<>, size=3116, nrcpt=1 (queue active) Jan 2 08:39:34 Debian-50-lenny-64-LAMP postfix/qmgr[15993]: 614C2257C1BC: from=<[email protected]>, size=2490, nrcpt=3 (queue active) and Jan 7 16:09:37 Debian-50-lenny-64-LAMP postfix/error[6471]: 0A316257C204: to=<[email protected]>, relay=none, delay=384387, delays=384384/3/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx.fakemx.net[46.4.35.23] refused to talk to me: 421 mx.fakemx.net Service Unavailable) Jan 7 16:09:37 Debian-50-lenny-64-LAMP postfix/error[6470]: 5848C257C20D: to=<[email protected]>, relay=none, delay=384373, delays=384370/3/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx.fakemx.net[46.4.35.23] refused to talk to me: 421 mx.fakemx.net Service Unavailable) then there tends to be connection timeouts, so from what I see even though I had relaying disabled.. something is getting by and trying to send.. So if you can help that will be greatly appreciated, and any further logging/config info I can supply. Thanks

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  • Windows 7, network shares, and authentication via local group instead of local user

    - by Donovan
    I have been doing some troubleshooting of my home network lately and have come to an odd conclusion that I was hoping to get some clarification on. I'm used to managing share permissions in a domain environment via groups instead of individual user accounts. I have a box at home running windows 7 ultimate and I decided to share some directories on that machine. I set it up to disallow guest access and require specifically granted permissions. (password moe?). Anyway, after a whole bunch of time i figured out that even though the shares I created were allowed via a local group i could not access them until i gave specific allowance to the intended user. I just didn't think i would have to do that. So here is the breakdown. Network is windows workgroup, not homegroup or nt domain PC_1 - win 7 ultimate - sharing in classic mode - user BOB - groups Admins PC_2 - win 7 starter - client - user BOB - groups admins PC_3 - win xp pro - client - user BOB - groups admins the share on PC_1 granted permission to only the local group administrators. local user BOB on PC_1 was a member of administrators. Both PC_2 and PC_3 could not browse the intended share on PC_1 because they were denied access. Also, no challenge was presented. They were simply denied. After adding BOB specifically to the intended share everything works just fine. Remember, its not an nt domain just a workgroup. But still, shouldn't i be able to manage share permissions via groups instead of individual user accounts? D.

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  • Migrating away from LVM

    - by Kye
    I have an Ubuntu home media server setup with 4.5TB split across a few hard-drives (1x3TB, 2x1TB) and I'm using LVM2 to manage the volumes. I have recently added a 60GB SSD to my server, and I wish to use it to house the 'root' partition of my server (which is currently under the LVM group). I don't want to simply add it to the LVM volume group, because (afaik) there's no way to ensure that the SSD will be used for the root filesystem. If I just throw it at the VG, it may be used to house my media, which would defeat the purpose of having the SSD in the first place. I feel that my only solution is to somehow remove my root partition from the LVM setup and copy it across to the SSD. My boot partition is, of course, not part of the LVM group. My disk setup is as follows: 60GB SSD: EMPTY. 1TB HDD: /boot, LVM space. 1TB HDD: LVM space. 3TB HHD: LVM space. I have a few logical volumes. my root (/), a 'media' volume for my media collection, a backup one for my network backups.etc. Does anyone have any advice as to how to go about this? My end goal is to have the 60GB SSD used for my boot and root partitions, with everything else on the 3TB/1TB/1TB hard-drives.

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  • Central Authentication For Windows, Linux, Network Devices

    - by mojah
    I'm trying to find a way to centralize user management & authentication for a large collection of Windows & Linux Servers, including network devices (Cisco, HP, Juniper). Options include RADIUS/LDAP/TACACS/... Idea is to keep track with staff changes, and access towards these devices. Preferably a system that is compatible with both Linux, Windows & those network devices. Seems like Windows is the most stubborn of them all, for Linux & Network equipment it's easier to implement a solution (using PAM.D for instance). Should we look for an Active Directory/Domain Controller solution for Windows? Fun sidenote; we also manage client systems, that are often already in a domain. Trust-relationships between Domain Controllers isn't always an option for us (due to client security restrictions). I'd love to hear fresh ideas on how to implement such a centralized authentication "portal" for those systems.

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  • Home Server: cpu virtualisation, what to choose?

    - by Huygens
    I'm looking for virtualisation solutions for storage and OS for a home server. A sort of private cloud where I manage the storage space independently of the VM one. This question focus on VM (or compute instance) management and what would best suit my needs. (I have another question related to the storage management). My use cases are: A backup server: rsync and other services running. A personal cloud server: a kind of owned dropbox system, à la ownCloud. " users foreseen. A media server: streaming videos and displaying photos. Here my environement and wishes: Server: HP Proliant MicroServer with 8 GB RAM (AMD Turion dual core with AMD-V technology) OS types: only Linux (perhaps a *BSD VM in the future) Linux distributions do not matter, I'm familiar with RHEL, Fedora, Suse, Ubuntu, but any other recommandation will be fine 2-3 VMs foreseen: backup server, owncloud server and media server (optional). Those are only servers, so no graphical console needed (I don't need VirtualBox) By VM I mean a virtualised environment like KVM, Xen, etc. or a compute instance like with OpenStack storage should be "virtualised/cloudified" see my other question. VM should be able to be migrated to another server in the future if performance cannot be fullfilled anymore by the current server It does not matter if installation of such setup is complicated as long as management tools allow for easy maintenance I don't have Windows at home, so solution should be Linux friendly and would be nice to be web based. But native apps are OK too. System should be easy to enhance: by adding a new server to migate some of the VMs to it. So it's really a kind of private cloud on which I could run some Linux OS. I would prefer free (libre, as in a free speach) and open source tools. But it does not have to be free as in a free beer. So Xen, KVM, VitualBox or OpenStack? What would you recommend?

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  • Grant HTTP access based on unix user group

    - by Sander Marechal
    Is it possible to grant network access or HTTP access based on a user's group? At my company we want to set up an internal composer server using Satis to manage packages for the projects we write (e.g. on repository.mycompany.com), with the packages themselves in our SVN server (svn.mycompany.com). We have several webservers with many different users on them. Some users should be able to reach the composer and SVN server. Some should not. Users that should be able to reach these servers all belong to the same group. How can I set up Apache on the Composer and SVN server to only grant access to those users in that group? Alternatively, can I set up the webservers in such a way that only users from that group are able to make a connection to our Composer and SVN servers? The best thing we have come up with so far is using SSL client certificates. We simply place a client certificate on all servers which can be used to access Composer and SVN. Only the right usergroup will have read access to the certificate. A bit clunky but it may work. But I'm looking for something better.

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  • Linux - real-world hardware RAID controller tuning (scsi and cciss)

    - by ewwhite
    Most of the Linux systems I manage feature hardware RAID controllers (mostly HP Smart Array). They're all running RHEL or CentOS. I'm looking for real-world tunables to help optimize performance for setups that incorporate hardware RAID controllers with SAS disks (Smart Array, Perc, LSI, etc.) and battery-backed or flash-backed cache. Assume RAID 1+0 and multiple spindles (4+ disks). I spend a considerable amount of time tuning Linux network settings for low-latency and financial trading applications. But many of those options are well-documented (changing send/receive buffers, modifying TCP window settings, etc.). What are engineers doing on the storage side? Historically, I've made changes to the I/O scheduling elevator, recently opting for the deadline and noop schedulers to improve performance within my applications. As RHEL versions have progressed, I've also noticed that the compiled-in defaults for SCSI and CCISS block devices have changed as well. This has had an impact on the recommended storage subsystem settings over time. However, it's been awhile since I've seen any clear recommendations. And I know that the OS defaults aren't optimal. For example, it seems that the default read-ahead buffer of 128kb is extremely small for a deployment on server-class hardware. The following articles explore the performance impact of changing read-ahead cache and nr_requests values on the block queues. http://zackreed.me/articles/54-hp-smart-array-p410-controller-tuning http://www.overclock.net/t/515068/tuning-a-hp-smart-array-p400-with-linux-why-tuning-really-matters http://yoshinorimatsunobu.blogspot.com/2009/04/linux-io-scheduler-queue-size-and.html For example, these are suggested changes for an HP Smart Array RAID controller: echo "noop" > /sys/block/cciss\!c0d0/queue/scheduler blockdev --setra 65536 /dev/cciss/c0d0 echo 512 > /sys/block/cciss\!c0d0/queue/nr_requests echo 2048 > /sys/block/cciss\!c0d0/queue/read_ahead_kb What else can be reliably tuned to improve storage performance? I'm specifically looking for sysctl and sysfs options in production scenarios.

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  • FastCGI Error when installing PHP on IIS7.5

    - by ytoledano
    I'm trying to install MediaWiki on a Win2008r2 server, but can't manage to install PHP. Here's what I did: Grabbed a Zip archive of PHP and unzipped it into C:\PHP. Created two subdirs: c:\PHP\sessiondata and c:\PHP\uploadtemp. Granted modify rights to the IUSR account for the subdirs. Copied php.ini-production as php.ini Edited php.ini and made the following changes: fastcgi.impersonate = 1 cgi.fix_pathinfo = 1 cgi.force_redirect = 0 open_basedir = "c:\inetpub\wwwroot;c:\PHP\uploadtemp;C:\PHP\sessiondata" extension = php_mysql.dll extension_dir = "./ext" upload_tmp_dir = C:\PHP\uploadtemp session.save_path = C:\php\sessiondata Install Web server role, selected CGI and HTTP Redirection options. In the Handler Mappings: Added Module Mapping. Entered the following values: Path = *.php, Module = FastCgiModule, Executable = c:\php\php-cgi.exe, Name = PHP via FastCGI. Created a test page into wwwroot directory: phpinfo.php and set the contents like this: < ?php phpinfo(); ? Browsed to http://localhost/phpinfo.php But then I get: HTTP Error 500.0 - Internal Server Error An unknown FastCGI error occured Detailed Error Information Module: FastCgiModule Notification: ExecuteRequestHandler Handler: PHP via FastCGI Error Code: 0x800736b1 Requested URL: http://localhost:80/phpinfo.php Physical Path: C:\inetpub\wwwroot\phpinfo.php Logon Method: Anonymous Logon User: Anonymous Does anyone know what I'm doing wrong here? Thanks.

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  • Can I get all active directory passwords in clear text using reversible encryption?

    - by christian123
    EDIT: Can anybody actually answer the question? Thanks, I don't need no audit trail, I WILL know all the passwords and users can't change them and I will continue to do so. This is not for hacking! We recently migrated away from a old and rusty Linux/Samba domain to an active directory. We had a custom little interface to manage accounts there. It always stored the passwords of all users and all service accounts in cleartext in a secure location (Of course, many of you will certainly not think of this a being secure, but without real exploits nobody could read that) and disabled password changing on the samba domain controller. In addition, no user can ever select his own passwords, we create them using pwgen. We don't change them every 40 days or so, but only every 2 years to reward employees for really learning them and NOT writing them down. We need the passwords to e.g. go into user accounts and modify settings that are too complicated for group policies or to help users. These might certainly be controversial policies, but I want to continue them on AD. Now I save new accounts and their PWGEN-generated (pwgen creates nice sounding random words with nice amounts of vowels, consonants and numbers) manually into the old text-file that the old scripts used to maintain automatically. How can I get this functionality back in AD? I see that there is "reversible encryption" in AD accounts, probably for challenge response authentication systems that need the cleartext password stored on the server. Is there a script that displays all these passwords? That would be great. (Again: I trust my DC not to be compromised.) Or can I have a plugin into AD users&computers that gets a notification of every new password and stores it into a file? On clients that is possible with GINA-dlls, they can get notified about passwords and get the cleartext.

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  • Kickstart: Serve dynamic kickstart images via a CGI or PHP script?

    - by Stefan Lasiewski
    I'd like to kickstart a couple dozen RHEL6/SL6 servers. However, some of these servers are different and I don't want to create a new ks.cfg file for each class of server. Are there any products which can generate a Kickstart file dynamically on the fly, from a template? For example, if I append a line like this to the KERNEL: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi Then the script ks.cgi can determine what host this is (Via the MAC address), and print out Kickstart options which are appropriate for that host. I could optionally override some options by passing parameters to the script, like this: APPEND ks=http://192.168.1.100/cgi-bin/ks.cgi?NODETYPE=production&IP=192.168.2.80 After we kickstart the server, we activate Cfengine/Puppet on this system and manage the system using our favorite Configuration Management product. We're experimenting with xCAT but it is proving too cumbersome. I've looked into Cobbler, but I'm not sure it does this. Update: A roll-your-own solution is discussed in the O'Reilly book: Managing RPM-Based Systems with Kickstart and Yum, Chapter 3. Customizing Your Kickstart Install Dynamic ks.cfg, which echos some of the comments in this thread: To implement such a tool is beyond the scope of this Short Cut, but I can walk through the high-level design. Any such solution would mix a data store (the things that change) with a templating solution (the things that don’t change). The data store would hold the per-machine data, such as the IP address and hostname. You would also need a unique identifier, perhaps the hostname, such that you could pick up a given machine’s data. The data store could be a flat file, XML data, or a relational database such as PostgreSQL or MySQL. In turn, to invoke the system, you pass a machine’s unique identifier as a URL parameter. For example: boot: linux ks=http://your.kickstart.server/gen_config?host-server25 In this example, the CGI (or servlet, or whatever) generates a ks.cfg for the machine server25. But where, oh where, is the code for ks.cgi?

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