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  • hMail server - sending copy of an e-mail changing the sender

    - by Beggycev
    Dear All please help me with following request. I am using hMail server in a company(test.com) and have several hundred of guest e-mail accounts ([email protected]). I need to accomplish this: When any of the guest e-mails receives a message(either from internal or external sender) this e-mail(or its copy) is sent to another address "[email protected]" which is the same for all of these guest e-mails. But I need the sender to be identified as the [email protected] not as the original sender which happens when I use forwarding. I tried to prepare a simple VBS script using the OnAcceptMessage event to accomplish this. and it works on my testing machine without internet connectivity but not in the production environment. To be specific, if I send an e-mail to [email protected] in my test env it is delivered to the [email protected] with [email protected] being a sender. But in the production env the e-mail stays in the guest mailbox with the original sender. I am interested in any solution, using a rule in hMail or script, anything is welcome. Thank you for any help! The script: Sub OnAcceptMessage(oClient, oMessage) 'creating application object in order to perform operations as hMail server administrator Dim obApp Set obApp = CreateObject("hMailServer.Application") Dim adminLogin Dim adminPassword 'Enter actual values for administrator account and password 'CHANGE HERE: adminLogin = "Admin_login" adminPassword = "password" Call obApp.Authenticate(adminLogin, adminPassword) Dim addrStart 'Take first 5 characters of recipients address addrStart = Mid(oMessage.To, 1, 5) 'if the recipient's address start with "guest" if addrStart = "guest" then Dim recipient Dim recipientAddress 'enter name of the recipient and respective e-mail address() 'CHANGE HERE: recipient = "FINAL" recipientAddress = "[email protected]" 'change the sender and sender e-mail address to the guest oMessage.FromAddress = oMessage.To oMessage.From = oMessage.To & "<" & oMessage.To & ">" 'delete recipients and enter a new one - the actual mps and its e-mail from the variables set above oMessage.ClearRecipients() oMessage.AddRecipient recipient, recipientAddress 'save the e-mail oMessage.save end if End Sub

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  • Apache2 refuses to process php files - "Snow Leopard" OSX 10.6.4

    - by w-01
    I have a macbook pro i5. my understanding is that by default it should be able to serve php5. i have uncommented the relevant line in /etc/apache2/httpd.conf LoadModule php5_module libexec/apache2/libphp5.so I have restarted apache with sudo apachectl -k restart and when i try to access a file with a php extension, Apache prompts me to download the file. i.e. instead of processing the php and sending me html, it thinks i want to download the file.... when i look in apache error log i see this [Fri Nov 12 10:16:14 2010] [notice] Apache/2.2.14 (Unix) PHP/5.3.2 mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_wsgi/3.2 Python/2.6.1 configured -- resuming normal operations so it looks like php5 is loading properly. I'd like to know either: How do i fix this? or How do I reinstall apache2 so that it's like i just installed the os? thanks in advance update @Zayne - the end of my httpd.conf has Include /private/etc/apache2/other/*.conf and i have a file /etc/apache2/other/php.conf with the contents <IfModule php5_module> AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps <IfModule dir_module> DirectoryIndex index.html index.php </IfModule> </IfModule> @Zayne I've already copied php.ini.default to php.ini in the same folder. when i run sudo apachectl configtest i get /usr/sbin/apachectl: line 82: ulimit: open files: cannot modify limit: Invalid argument httpd: Could not reliably determine the server's fully qualified domain name, using ::1 for ServerName Syntax OK furthermore i decided to try apachectl -M which shows all loaded modules Most importantly in the list of loaded modules i got Loaded Modules: php5_module (shared) Since the module is being loaded, it seems like the issue has more to do with making apache use php engine to process the php files.... so something wrong with the ifmodule directive?

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  • Can one config LDAP to accept auth from ssh-agent instead of from Kerberos?

    - by Alex North-Keys
    [This question is not about getting your LDAP password to authenticate you for SSH logins. We have that working just fine, thank you :-) ] Let's suppose you're on a Linux network (Ubuntu 11.10, slapd 2.4.23), and you need to write a set of utilities that will use ldapmodify, ldapadd, ldapdelete, and so on. You don't have Kerberos, and don't want to deal with its timeouts (most users don't know how to get around this), quirks, etc. This resolves the question to one of where else to get credentials to feed to LDAP, probably through GSSAPI - which technically doesn't require Kerberos despite its dominance there - or something like it. However, nearly everyone seems to have an SSH agent program, complete with its key cache. I'd really like an ssh-add to be sufficient to allow passwordless LDAP command use. Does anyone know of a project working on using the SSH agent as the source of authentication to LDAP? It might be through an ssh-aware GSSAPI layer, or some other trick I haven't thought of. But it would be wonderful for making LDAP effortless. Assuming I haven't just utterly missed a way to use ldapmodify and kin without having to type my LDAP passwords - using -x is NOT acceptable. At my site, the LDAP server only accepts ldaps connections, and requires authentication for modifying operations. Those are requirements, of course. Any ideas would be greatly appreciated. :-)

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  • Vserver: secure mails from a hacked webservice

    - by lukas
    I plan to rent and setup a vServer with Debian xor CentOS. I know from my host, that the vServers are virtualized with linux-vserver. Assume there is a lighthttpd and some mail transfer agent running and we have to assure that if the lighthttpd will be hacked, the stored e-mails are not readable easily. For me, this sounds impossible but may I missed something or at least you guys can validate the impossibility... :) I think basically there are three obvious approaches. The first is to encrypt all the data. Nevertheless, the server would have to store the key somewhere so an attacker (w|c)ould figure that out. Secondly one could isolate the critical services like lighthttpd. Since I am not allowed to do 'mknod' or remount /dev in a linux-vserver, it is not possible to setup a nested vServer with lxc or similar techniques. The last approach would be to do a chroot but I am not sure if it would provide enough security. Further I have not tried yet, if I am able to do a chroot in a linux-vserver...? Thanks in advance!

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  • Can you "swap" the Sysprep answer file in Windows 7

    - by Ben
    I have a load of new Lenovo laptops which I am due to distribute in my company. We are distributed in multiple locations and I want to ship the laptops "boxed" and untouched by IT hand for distribution. We are using LANDesk to do all the software distribution and provisioning, but are currently falling at the first hurdle as when booted, the laptops kick into the Lenovo mini-setup wizard. I assume this is because they have been sysprepped at Lenovo. In order to keep with our (almost) zero touch strategy I want the users to PXE boot into a PE of some sort, which will run a script on startup which replaces the sysprep answer file with one of my own. (i.e. prepopulated with product key, company info etc.) and then reboot to complete Sysprep. The plan is that this will run, and then install the LANDesk agent as a post-sysprep task, which in turn will complete the provisioning. Anyone have any experience / know any pitfalls to look out for / can suggest a suitable, PXE-bootable PE environment? Apologies for the verbosity of the question - it takes a bit of explaining! Thanks in advance, Ben

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  • Multiple public IPs through DD-WRT without 1-to-1 NAT

    - by Stephen Touset
    I've done a search here and wasn't able to find anything relevant to my situation. I apologize in advance if I've missed an existing post on the topic. Our ISP has provided us with 6 static IP addresses. We are currently using two of them (plus one for the Comcast-provided router). One of the static addresses routes to our internal network, and the other goes to our VOIP phone system. Unfortunately, the Comcast machine doesn't support QoS, so our VOIP calls have been choppy. We plan to put the Comcast-provided router into bridge mode and replace it with an ASUS RT-N16 running DD-WRT. However, I'm unsure how to set up DD-WRT to function similarly to our existing Comcast router. The Comcast router's WAN IP is the first of our static IP addresses. We did not need to provide an internal LAN IP address — simply connecting machines that use our other public addresses to the LAN ports on the Comcast router is enough for it to route between the connected machines and our internet connection. Is there a way to do a similar setup through the DD-WRT? Thanks in advance.

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  • Apache2 will not start on OpenSUSE after enabling mod_pagespeed

    - by alpha1
    I have a linode VPS, running openSUSE 12.1 (A little outdated, but stable). I have installed the RPMS for mod_pagespeed. mod_pagespeed.conf has "ModPagespeed on". Restarting apache fails after enabling pagespeed. the errors are not very helpful. li361-39:/usr/lib64/apache2 # a2enmod pagespeed li361-39:/usr/lib64/apache2 # service apache2 restart redirecting to systemctl Job failed. See system logs and 'systemctl status' for details. li361-39:/usr/lib64/apache2 # systemctl status apache2.service apache2.service - apache Loaded: loaded (/lib/systemd/system/apache2.service; enabled) Active: failed since Thu, 06 Jun 2013 20:49:00 +0000; 1s ago Process: 6701 ExecStop=/usr/sbin/httpd2 -D SYSTEMD -k stop (code=exited, status=0/SUCCESS) Process: 6704 ExecStart=/usr/sbin/start_apache2 -D SYSTEMD -k start (code=exited, status=1/FAILURE) Main PID: 6637 (code=exited, status=0/SUCCESS) CGroup: name=systemd:/system/apache2.service li361-39:/usr/lib64/apache2 # a2dismod pagespeed li361-39:/usr/lib64/apache2 # service apache2 restart redirecting to systemctl li361-39:/usr/lib64/apache2 # And the error log (/var/log/apache2/error_log) is useless as well. [Thu Jun 06 20:48:59 2013] [notice] caught SIGTERM, shutting down [Thu Jun 06 20:49:12 2013] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] [Thu Jun 06 20:49:13 2013] [notice] Apache/2.2.21 (Linux/SUSE) mod_ssl/2.2.21 OpenSSL/1.0.0k PHP/5.4.15 configured -- resuming normal operations EDIT This is from /var/log/messages Jun 12 14:24:14 li361-39 start_apache2[27951]: httpd2-prefork: Syntax error on line 116 of /etc/apache2/httpd.conf: Syntax error on line 34 of /etc/apache2/sysconfig.d/loadmodule.conf: Cannot load /usr/lib64/apache2/mod_pagespeed.so into server: /usr/lib64/apache2/mod_pagespeed.so: undefined symbol: ap_unixd_config Full Log is here: http://pastebin.com/hjnbZZTr I've tried looking for other logs and checking the mod_pagespeed.conf against posts claiming it works and nothing is striking as wrong. Any Ideas?

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  • ZFS - destroying deduplicated zvol or data set stalls the server. How to recover?

    - by ewwhite
    I'm using Nexentastor on a secondary storage server running on an HP ProLiant DL180 G6 with 12 Midline (7200 RPM) SAS drives. The system has an E5620 CPU and 8GB RAM. There is no ZIL or L2ARC device. Last week, I created a 750GB sparse zvol with dedup and compression enabled to share via iSCSI to a VMWare ESX host. I then created a Windows 2008 file server image and copied ~300GB of user data to the VM. Once happy with the system, I moved the virtual machine to an NFS store on the same pool. Once up and running with my VMs on the NFS datastore, I decided to remove the original 750GB zvol. Doing so stalled the system. Access to the Nexenta web interface and NMC halted. I was eventually able to get to a raw shell. Most OS operations were fine, but the system was hanging on the zfs destroy -r vol1/filesystem command. Ugly. I found the following two OpenSolaris bugzilla entries and now understand that the machine will be bricked for an unknown period of time. It's been 14 hours, so I need a plan to be able to regain access to the server. http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6924390 and http://bugs.opensolaris.org/bugdatabase/view_bug.do;jsessionid=593704962bcbe0743d82aa339988?bug_id=6924824 In the future, I'll probably take the advice given in one of the buzilla workarounds: Workaround Do not use dedupe, and do not attempt to destroy zvols that had dedupe enabled. Update: I had to force the system to power off. Upon reboot, the system stalls at Importing zfs filesystems. It's been that way for 2 hours now.

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  • Using VLANs/subnetting to separate management from services?

    - by YouAreTheHat
    Background: I recently purchased a server and a managed switch for my home in the hopes of getting more experience and some fun toys to play with. The devices and appliances I either have or plan to have cover a broad spectrum: router, DD-WRT AP, Dell switch, OpenLDAP server, FreeRADIUS server, OpenVPN gateway, home PCs, gaming consoles, etc. I intend to segment my network with VLANs and associated subnets (e.g., VID10 is populated by devices on 192.168.10.0/24). The idea is to secure the more sensitive appliances by forcing traffic through my router/FW. Setup: After thinking and planning for some time, I have tentatively decided on 4 VLANs: one for the WAN connection, one for servers, one for home/personal devices, and one for management. In theory, the home VLAN will have limited access to the servers, and the management VLAN will be totally isolated for security. Question: Since I want to restrict access to management interfaces, but some appliances have to be accessible to other devices, is it possible/wise to have only management (SSH, HTTP, RDP) available on one VLAN/IP and only services (LDAP, DHCP, RADIUS, VPN) available on other? Is this a thing that is done? Does it gain me the security I think it does, or hurt me in some way?

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  • Migrated SCOM 2007 R2 Reporting Services but reports are gone

    - by Gabriel Guimarães
    I've migrated Reporting Services on a SCOM 2007 R2 install, and noticed that the reports have not being copied. I can create a new report, but the ones I've had because of the management packs are gone. I've tried re-applying the Management Packs however it doesn't re-deploy them and when I try to access for example: Monitoring - Microsoft Windows Print Server - Microsoft Windows Server 2000 and 2003 Print Services - State View - select any item and click Alerts on the right menu. I get the following error: Date: 12/24/2010 12:40:35 PM Application: System Center Operations Manager 2007 R2 Application Version: 6.1.7221.0 Severity: Error Message: Cannot initialize report. Microsoft.Reporting.WinForms.ReportServerException: The item '/Microsoft.SystemCenter.DataWarehouse.Report.Library/Microsoft.SystemCenter.DataWarehouse.Report.Alert' cannot be found. (rsItemNotFound) at Microsoft.Reporting.WinForms.ServerReport.GetExecutionInfo() at Microsoft.Reporting.WinForms.ServerReport.GetParameters() at Microsoft.EnterpriseManagement.Mom.Internal.UI.Reporting.Parameters.ReportParameterBlock.Initialize(ServerReport serverReport) at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ReportForm.SetReportJob(Object sender, ConsoleJobEventArgs args) The report doesn't exist on the reporting services side. how do I re-deploy this reports? Any help is appreciated. Thanks in advance.

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  • Resize Debian in VirtualBox

    - by Poni
    I have a VM with one HD of size 3GB and I'd like to enlarge its HD to 7GB. So I execute this command on the host (while guest is shutdown): VBoxManage modifyhd debian.vdi --resize 7168 Then I run the guest, Debian 6, and then: smith@debian6:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 2.8G 2.6G 60M 98% / tmpfs 61M 0 61M 0% /lib/init/rw udev 57M 160K 57M 1% /dev tmpfs 61M 0 61M 0% /dev/shm smith@debian6:~$ sudo parted /dev/sda print Model: ATA VBOX HARDDISK (scsi) Disk /dev/sda: 3221MB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 3035MB 3034MB primary ext3 boot 2 3036MB 3220MB 185MB extended 5 3036MB 3220MB 185MB logical linux-swap(v1) smith@debian6:~$ cat /proc/partitions major minor #blocks name 8 0 3145728 sda 8 1 2962432 sda1 8 2 1 sda2 8 5 180224 sda5 So, no automatic resizing (detection) of the HD/partition (while VirtualBox, in the host, shows it's 7GB now). Ok... Then I do: smith@debian6:~$ sudo resize2fs /dev/sda1 resize2fs 1.41.12 (17-May-2010) The filesystem is already 740608 blocks long. Nothing to do! smith@debian6:~$ sudo parted GNU Parted 2.3 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) select /dev/sda1 Using /dev/sda1 (parted) resize WARNING: you are attempting to use parted to operate on (resize) a file system. parted's file system manipulation code is not as robust as what you'll find in dedicated, file-system-specific packages like e2fsprogs. We recommend you use parted only to manipulate partition tables, whenever possible. Support for performing most operations on most types of file systems will be removed in an upcoming release. Partition number? 1 Start? 0 End? [3034MB]? Here I'm stuck. At the above parted it asks me to resize to 3GB. No point in that, right.. What should I do in order to enlarge this partition?

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  • How can MySQL be in GDAL's dependencies when it's already installed?

    - by Julien Fouilhé
    I'm trying to install GDAL on my CentOS 64 bits server to be able to make some GIS operations. I tried a simple: # yum install gdal First, the GDAL version is 1.4 (the last released one is 1.9) Then, I see in the dependencies list mysql. But I have mysql already installed, from another repository (remi), with a newer version than the one suggested by yum... Is it a problem of architecture (yum suggests i386)? I risked a yes, but still impossible to install it! Here's the error I have. Transaction Check Error: package mysql-5.5.28-1.el5.remi.x86_64 (which is newer than mysql-5.0.95-1.el5_7.1.i386) is already installed Then, I tried to install it from sources with last version available (1.9.2). I downloaded the GDAL tar.gz, extracted the files and installed it like following: # tar -xzf gdal-1.9.2.tar.gz # ./configure --with-static-proj4=/usr/local/lib --with-threads --with-libtiff=internal --with-geotiff=internal --with-jpeg=internal --with-gif=internal --with-png=internal --with-libz=internal # make # make install But during the make, I have some strange errors displaying, about RegisterOGRMySQL, that I can't understand: chmod a+x gdal-config /bin/sh /home/benjamin/gdal-1.9.2/libtool --mode=link g++ gdalinfo.lo /home/benjamin/gdal-1.9.2/libgdal.la -o gdalinfo libtool: link: g++ .libs/gdalinfo.o -o .libs/gdalinfo /home/benjamin/gdal-1.9.2/.libs/libgdal.so -L/usr/local/lib/lib -L/usr/kerberos/lib64 -lproj -lsqlite3 /usr/lib64/libexpat.so -lpthread -lrt -lcurl -ldl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lidn -lssl -lcrypto -lz -Wl,-rpath -Wl,/usr/local/lib -Wl,-rpath -Wl,/usr/lib64 /home/benjamin/gdal-1.9.2/.libs/libgdal.so: undefined reference to `RegisterOGRMySQL' collect2: ld returned 1 exit status make[1]: *** [gdalinfo] Error 1 make[1]: Leaving directory `/home/benjamin/gdal-1.9.2/apps' make: *** [apps-target] Error 2 Has anyone a solution? Thanks a lot!

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  • external drive enclosure -> software RAID 5?

    - by memilanuk
    Hello all, I have two older PCs on my LAN posing as 'servers'... one running FreeNAS off a USB stick using three 500GB hdds in a ZFS RAID-Z pool serving as storage for the LAN and one running Debian Lenny with an 80GB drive used as a general purpose 'tinker' box that I can ssh into, etc. Problem is that the SMART report for one of those 500GB drives in the FreeNAS box is showing some pre-failure attributes, and the whole array is a little small anyways. Rather than simply replace one 500GB drive with another 500GB drive, and have no backup of the file server, I'd like to upgrade all the drives to 2TB ones - but I have no where to store that much data in the mean while. As such, I started looking at getting a 4-bay external drive enclosure with an eSATA card for the Debian box, with the hopes of creating a RAID5 + LVM setup using those drives and backing the data up to that external drive enclosure. After the backup is done, replace the drives in the FreeNAS box and rebuild the array there and mirror the data back. Then, I'd have both the primary storage (on the FreeNAS box) and a backup (which I don't have currently) using the external drive enclosure on the Debian box. My big question is... most of these external drive boxes seem to claim support for JBOD, RAID 0, 1, 10, 5, etc. - should I presume that is simply fake RAID like many commodity mobos have, and not really usable in Linux? In that case, with all the drives hanging off the one eSATA connection, will Linux (specifically Debian Squeeze, as I plan on upgrading that box here shortly) see all four drives, or just the first one? Will I be able to configure them in a RAID5 array as desired? Thanks, Monte

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  • Apache Virtual host not recognized

    - by Bozho
    I've been using one server, then I reinstalled everything on another server, and the mod_jk stopped working. Here is the situation: apache 2.0 sitting "in front" mod_jk used to connect to the apache to tomcat tomcat 6.0.26 used to server the actual requests I followed this tutorial. The result is: accessing http://mysite.com opens the index.html in /var/www/ accessing http://mysite.com:8080/ works OK the logs at /var/logs/apache2 show everything is OK: [Mon Mar 29 22:01:53.310 2010] [28349:3075389184] [info] init_jk::mod_jk.c (2830): mod_jk/1.2.26 initialized [Mon Mar 29 22:01:53 2010] [warn] No JkShmFile defined in httpd.conf. Using default /var/log/apache2/jk-runtime-status [Mon Mar 29 22:01:53 2010] [notice] Apache/2.2.9 (Debian) mod_jk/1.2.26 configured -- resuming normal operations I compared the server.xml, jk.conf, sites-enabled/mysite from the new server to those from the old one and they are identical. The domain name is the same (I updated the DNS record today, and it has refreshed successfully) So the question is, what can go wrong? Is there another place where problems would be logged, if such occur? Update What I can be almost certain of is that the virtual host is not recognized. It is always forwarded to the default virtual host. So, how to make sure the virtual host is recognized and working?

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  • 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.

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  • A separate user for each task?

    - by Mark Tomlin
    I just got a VPS sver the other day, I'm new to server administration, but not that new to Ubuntu (11.04). I use it in my living room as the HTPC, and I had a previous VPS that I used on and off for a team speak server. This one I'm setting up for long term use. So I would like to know the best practice when it comes to websites and tasks that I have the server proforming. I understand that it could be beneficial to separate each website into it's own usergroup or under its own username. I would setup nginx so that it could read all of the users directors (and thus each website) but could not touch anything else. The same with the TeamSpeak, should I make a user for TeamSpeak so that it operates within its own confined area or is this overkill? I do have access to root on the sever and my current plan is to run about 4 websites and a TeamSpeak server. My stack is Linux (Ubuntu 11.04 LTS), nginx, and PHP 5.4.3 (using the PDO SQLite 3 built in driver for the database). Should PHP have it's own user group or is it ok to place it in with nginx?

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  • 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.

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  • PXE boot -- kernel not found on TFTP server

    - by user70523
    I followed the following link for PXE boot, http://www.howtoforge.com/setting-up-a-pxe-install-server-on-ubuntu-9.10-p3 and I was able to ping the client from the server and also when I booted up the client It is getting the IP address from the server. But later,I got this error PXELinux 3.82 2009-06-09 . . . [other informations] !PXE Entry point found (we hope) at 9D3B:0109 via plan A UNDI code segment at 9D3B len 16C2 UNDI data segment at 933B len A000 Getting cached packet 01 02 03 . . . [other informations] TFTP prefix: Trying to load: pxelinux.cfg/ec5db4c0-74fe-d511-b9e7-3d9235afe5a1 Trying to load: pxelinux.cfg/01-00-17-31-b6-5e-a8 Trying to load: pxelinux.cfg/0A64491E Trying to load: pxelinux.cfg/0A64491 Trying to load: pxelinux.cfg/0A6449 Trying to load: pxelinux.cfg/0A644 Trying to load: pxelinux.cfg/0A64 Trying to load: pxelinux.cfg/0A6 Trying to load: pxelinux.cfg/0A Trying to load: pxelinux.cfg/0 Trying to load: pxelinux.cfg/default Unable to locate configuration file Boot failed: press a key to retry or wait for reset I have put all the files mentioned in the link in tftpboot. Can anyone explain what could be the problem. Thanks in advance

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  • Rack layout for future growth

    - by bleything
    We're getting ready to move to a new colo facility and I'm designing the rack layout. While we have a full rack, we only have 12U worth of hardware right now: 1x 1U switch 7x 1U servers 1x 2U server 1x 2U disk shelf The colo facility requires us to front-mount the switch and use a 1U brush strip, so we'll be using a total of 13U of space. Regarding growth, I'm reasonably sure we'll be adding another 4U in servers, 1-2U of network gear, and 2-4U of storage in the mid-term. Specific questions I'm hoping to get help with: where should I mount the switch? the LEDs are on top... should I group the servers by function with space for adding new machines? as an alternative, should I group servers based on whether they are production or staging? where in the rack should I start? in the middle? at the top? at the bottom? equally spaced? Here's a silly little ASCII diagram of what I'm thinking right now. Please feel free to tear my design apart, I've really no idea what I'm doing :) Any advice is very welcome. edit: to be clear, the colo is providing redundant power with UPS and generator, so that's why there's no power gear in the plan, except for the 0U PDU that I didn't diagram. 42 | -- switch ---------------------- 41 | -- brush strip ----------------- 40 | ~~ reserved for second switch ~~ 39 | ~~ reserved for firewall ~~~~~~~ 38 | 37 | -- admin01 --------------------- 36 | 35 | -- vm01 ------------------------ 34 | -- vm02 ------------------------ 33 | ~~ reserved for vm03 ~~~~~~~~~~~ 32 | ~~ reserved for vm04 ~~~~~~~~~~~ 31 | ~~ reserved for vm05 ~~~~~~~~~~~ 30 | 29 | -- web01 ----------------------- 28 | -- web02 ----------------------- 27 | ~~ reserved for web03 ~~~~~~~~~~ 26 | ~~ reserved for web04 ~~~~~~~~~~ 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | -- db01 ------------------------ 15 | +- disks ----------------------+ 14 | +------------------------------+ 13 | ~~ reserved for more ~~~~~~~~~~~ 12 | ~~ db01 disks ~~~~~~~~~~~~~~~~~~ 11 | 10 | +- db02 -----------------------+ 9 | +------------------------------+ 8 | ~~ reserved for db02 ~~~~~~~~~~~ 7 | ~~ disks ~~~~~~~~~~~~~~~~~~~~~~~ 6 | ~~ reserved for more ~~~~~~~~~~~ 5 | ~~ db02 disks ~~~~~~~~~~~~~~~~~~ 4 | 3 | 2 | 1 |

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  • Can I run a mix of static addressing and NAT?

    - by aroth
    Let's say that an ISP offers a plan with 5 static IP addresses, but I have more than 5 devices, many of which (such as a networked printer, for instance) I do not want or need to have a static IP address. So the topography I'm planning goes something like: ISP -> Router -> Switch -> Computer (static address) -> Computer (static address) -> Printer (DHCP/NAT) -> Tv (DHCP/NAT) -> (...) -> Wireless Devices (DHCP/NAT) Generally speaking, is it possible to run a network like that? If not, then what sort of setup do I need so that I can assign static addresses just to the things that need them, and use DHCP/NAT for everything else? Also, what internal networking devices will consume a static IP address? I'm pretty sure the router will, correct? Does the switch also?

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  • Apache2 MPM-prefork MPM-worker multiple instances on same Ubuntu host machine possible?

    - by user60985
    I have a live Apache2/MPM-Worker instance running Django. I want to also run an Apache2/MPM-prefork instance to run some Drupal6 applications on the same host machine and utilize a vast selection of PHP modules that run on the prefork model. I plan to use my MPM-worker instance to reverse proxy to the Apache2-prefork instance for URLS starting with myhost.com/drupal6/. It seems theoretically doable/configurable by having the second Apache2-prefork instance configured to listen on an internal port, say 127.0.0.1:8080 and having my current Apache2-worker configured to proxy pass and reverse pass to it for the 'drupal6' URLs. However, how do I compile or install the apache2-prefork version so it has a different executable name than /usr/sbin/apache2, for example /usr/sbin/apache2p, and so apache2ctl has a different name, say apache2pctl, and that apache2pctl invokes the /usr/sbin/apache2p instead of /usr/sbin/apache2... and so on down the line (eg /etc/apache2p) so I can start and restart my two instances independently? As I understand it, no one executable of 'apache2' can be compiled with both the MPM-prefork and MPM-worker modules, so it seems I need two separate versions of the apache2 MPM flavors. But then I need to invoke and control them by separate names, I assume. I looked at the configuration options for apache2 and I am a bit queasy about compiling a second apache2 version with prefork because I am not sure I can set all the options so that none of my current apache2 files is overwritten. Is there a way? Is there a standard solution to separately installing and controlling prefork and worker apache2 executables on the same machine without them stepping on each other during installation or operation?

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  • Skype Connect as SIP/Trunk for Asterisk

    - by Kaurin
    First off: I'm not sure if this should be on superuser or here. I have recently built a few Asterisk boxes with OpenVOX FXO/FXS ports little or no trouble. My current project is building an Asterisk box with SIP trunks. My current employer insisted on getting Skype Business/Skype connect for that purpose. After reviewing the Skype Connect plan, I agreed, because I thought it is going to be straightforward: Purchase G729 licences and setup SIP trunk/trunks. Boy was i wrong :) Here is the setup: The setup is for calling US numbers only via skype (we got skype US minute bundles in skype connect) AsteriskNOW - Asterisk 1.4 + asterisk-gui Trunks: SIP Trunk configured with Skype Connect - shows as registered Users: 2 test extensions. Both work fine when calling each other, voicemail etc works fine too The asterisk box is behind a Mikrotik router which i configured to forward all relevant ports: 5060-5090 UDP, 10000-20000 UDP. When trying out an extension outside of my LAN, it worked. I could make calls to the other extension. Outgoing rule: _NXXXXXXXXX Strip:0 Prepend:+1 Use skype trunk Inbound rule: Trunk: Skype Pattern: s Destination: Extension1 (6210) Here is the output of asterisk CLI (-rvvvvv) with outgoing calls: http://pastebin.com/eWVpL72e you can see the circuit-busy response when using trunk1 (skype) When calling my Skype Connect number from the outside, I get nothing in the logs. Can anyone with Skype Connect / Asterisk experience help out? :)

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  • Windows 7 deployment thru WDS

    - by vn
    Hello, I am deploying new systems on my network and I built my reference computer by installing the OS the manufacturers (Dell and a custom built system from some local business) gave with all drivers, installed all the desired applications. As for the settings part, I'm doing most of it thru GPOs. I want to image my reference computer and deploy it with WDS. i found several links on how to sysprep, but they're all doing it with some differences without explaining them. My questions : How do I manage (into sysprep) the domain join/computer naming part since (from what I understand) WDS manages that? How do I know/determine what I need to setup into my sysprep.xml? Can you sysprep a first time, try and if it fails, do some modifications and try again? I am thinking of doing a basis sysprep, checking what info can be automated and correct that in the answer file. What do I miss if skipping the "audit" mode? I don't plan on re-doing the reference computer... I read that when sysprepping, it resets settings from the reference computer like the computer name, activation/key and such... what setting is sysprep resetting by default that I should be aware of? I must admit I am quite lost about Win7, sysprep, RIS, MDI toolkit, WDS.. I understand the way of doing with XP, but it changed so much with Windows 7! The links I am reading are : http://far2paranoid.wordpress.com/2007/12/05/prep-for-sysprep/ http://blog.brianleejackson.com/sysprep-a-windows-7-machine-%E2%80%93-start-to-finish-v2 http://www.ehow.com/print/how_5392616_sysprep-machine-start-finish-v2.html Thank you VERY much for any answers, they are much appreciated.

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  • Options for synchronizing Palm Desktop calendars

    - by Al Everett
    My wife and I each have Palm Centro phones and very full calendars. We've been using Palm products for years and are happy with them and are not looking to switch (and don't have the budget for it even if we wanted to). What is a viable way we can synchronize our calendars? Back when we had Palm Z22s we used AirSet. It worked great in synchronizing our desktop calendars. Unfortunately, their sync software does not support Palm Desktop v6 and there is nothing in the pipeline to support it. (The third party vendor is apparently not interested in updating for the newer Palm desktop.) I would love to be able to get back to having each other's appointments appear on the other's calendar. What can we do? Some limitations: A data plan is not an option (so this precludes over-the-air synchronization options) No Microsoft Outlook Edit: Syncing my Palm to my Palm Desktop is not the issue. Being able to sync, in some way, the Palm calendar databases of my wife's and my calendars is what's desired.

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  • wrt54gl reboots; troubleshooting steps?

    - by Bill
    I am using about 10 wrt54gl's in a small school. I am using a combination of stock firmware and Tomato 1.25, slowly moving towards all Tomato. We have had these devices installed for several years without problems. Recently, more and more of the units have started to spontaneously reboot, usually during high-traffic times (but not always). For the most part, the rebooting is not critical for us, but the wrt54gl's temporarily revert to 192.168.1.1 on the LAN ethernet ports and conflict with a critical server that's already installed with that IP. (Yes -- we plan to move the server off that address, but it is an involved process.) Both Tomato and the stock firmware (several versions from recent to several years old) exhibit the same problem: random reboots and reverting to 192.168.1.1 and conflicting temporarily with our server until the firmware boot process finishes. Here are my questions: Any way to prevent the wrt54gl's from reverting to 192.168.1.1 during the boot process? I was thinking of doing a custom firmware mod, although I hate to go that direction. Any steps to take in troubleshooting the reboots? Only some of the wrt54gl's reboot, which is odd. Others stay online for weeks and months without issues. Thanks.

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