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Any advice for administrating a headless server?

I have a headless server (with a desktop (ubuntu 10.04)) that I VNC into (using RealVNC) whenever I want to do anything with it. However, VNC-ing does not seem reliable. Every week I have a connect ...
John's user avatar
  • 131
1 vote
2 answers
1k views

Dovecot suddenly stopped working. HELP! "can't auth"

I am running out of ideas here.. I've been trying to fix this for 3 hours. Box is debian lenny. Mail.log contains the following: Can't connect to auth server at /var/run/dovecot/auth-master: No such ...
Bastien's user avatar
  • 123
1 vote
3 answers
123 views

One LAN: Two (or more) wireless APs?

For coverage reasons, I'd like to deploy 2 wireless access points for my LAN. Do I just plug both AP's in to the same wired lan, and set them both to the same SSID & PSK? (On different channels, ...
nonot1's user avatar
  • 1,109
1 vote
1 answer
1k views

UEC - Ubuntu 10.10 - node registration problem

I am trying to setup a private cloud on two servers. All components register as expected except for my node. I've found one person who had the same exact problem using Ubuntu 10.10 during the beta, ...
user avatar
0 votes
1 answer
101 views

Terminal Server monitoring/recording solutions [closed]

I saw an ad on ServerFault for a product called ObserveIT - it looks like a brilliant product, and we're in the process of trialling it in our staging environment. Does anyone know of any other ...
0 votes
2 answers
4k views

Postfix whitelisting several email domain

is there any way to whitelist certain email domain in postfix ? eg. whitelisting (Hotmail.com. msn.com, Linkedin.com, gmail.com and yahoo.*) ? this is for postfix install on my solaris box Thanks.
Senior Systems Engineer's user avatar
7 votes
1 answer
3k views

How do I monitor memcached evictions?

How do I monitor memcached to know if / how many evictions are occurring, and how much memory is used/free.
philfreo's user avatar
  • 997
2 votes
1 answer
324 views

Backup Exec System State

Does anybody see any point in backing up System State using 'Backup Exec' when 'Backup Exec System Recovery' is running on a server? The only good thing i can see coming from it is having the System ...
Dave's user avatar
  • 31
1 vote
3 answers
515 views

32 core multithreading performance for ASP.NET 4.0 and MS SQL 2008 Web Edition

Recently my user count has increased and my current server has started to become insufficient. I am thinking about buying 4 x 8 = 32 core AMD CPUs using dedicated server. I wonder how good ASP.NET 4....
Furkan Gözükara's user avatar
0 votes
1 answer
963 views

network architecture: inbound/outbound traffic from local to internet and vice versa

ive been reading about network architecture a bit, found an interesting paper from Sun Microsystems that, even though uses their hardware/software, gives a good idea about the basics of data center ...
mayotic's user avatar
  • 197
2 votes
2 answers
7k views

IIS 7.5 error 500 in fastcgi module after upgrading wordpress to 3.0.2

I am running multiple wordpress blogs on the following setup: Server 2008 R2; IIS 7.5; PHP 5.3.3; MySQL 5.0.7; I upgraded my wordpress install from 2.9.2 to 3.0.2 (on 2 different sites) today and ...
Maniac13's user avatar
0 votes
1 answer
1k views

Are there any ready to use open source websocket server implementation?

Are there some open source websocket server implementations, especially ready for production? (Are there Erlang based out there?)
Mickey Shine's user avatar
1 vote
2 answers
5k views

netstat reports PID that doesn't exist - wtf and how do I close it?

I have an app that listens on port 7001, which sometimes crashes but leaves the port open. netstat reports a PID that doesn't exist. How is that possible? How can I force the port to close without ...
Joe Daley's user avatar
  • 161
1 vote
4 answers
502 views

My LAMP server is getting hammered with traffic, how can I see what's causing the load?

We're getting tons of traffic but it's causing the site to respond extremely slowly, or not at all. I'm in WHM checking out the load, the top processes, etc but I can't seem to find exactly what the ...
thewebguy's user avatar
  • 115
2 votes
2 answers
192 views

Question about drives in a heavily used file storage server

I have a medium sized file storage website that allows people to backup their data online. A lot of these files are shared, and receive large amounts of traffic. I have several types of servers, and I ...
user avatar
0 votes
1 answer
204 views

make out of memory

Using gcc to make mono 2.8 from source on a CentOS 5 VPS with 128mb RAM, and it seems to be hanging. The result of free-m shows all memory has been used. $ free -m total used ...
Darbio's user avatar
  • 557
0 votes
2 answers
150 views

Stupid question about server permissions

Thanks for reading. I have a share on a 2003 server that I would like to share with some of my domain users. The share is currently empty, so n worries about permissions of subfiles/folders. I have ...
Eli's user avatar
  • 741
1 vote
1 answer
121 views

Active Directory 2000 to Active Directory 2003

Looking for the most painless way to upgrade our Windows 2000 Active directory domain to Windows 2003 Active Directory. Note: We do have Exchange 2003 running Active Directory 2000 domain
Matt Fitz's user avatar
0 votes
1 answer
226 views

Access MySQL database from virtual machine hard drive (EBS volume) in Amazon EC2

I had an Ubuntu image that was corrupted and will not longer boot (hosted with EC2). This is just a problem with the OS booting and not a problem wit the actual EBS volume. So I have mounted the EBS ...
spoon16's user avatar
  • 245
1 vote
1 answer
134 views

IIS6.0 Subauthentication to AD

So I have Windows 2003 with IIS6 Hosting an MVC web app that requires domain authentication. Any Good Ideas on how to do this. The errors I get is 400, 401 or service unavailable. I have followed the ...
mikedopp's user avatar
  • 329
1 vote
1 answer
45 views

Exchange 2007 Replication Plan

At the moment I have 1 exchange 2007 server that I am backing up with backup-exec. I'm trying to come up with a way to handle something going wrong with him, how can I get back up and running. What ...
arkansasonline's user avatar
1 vote
3 answers
843 views

How to run parallel jdk version

I installed a new jdk 1.6 parallel to that existing 1.5, however I got this error when I run the java binary. ./java -version Error occurred during initialization of VM java/lang/...
user avatar
0 votes
1 answer
3k views

Why does dhclient only work if its not specified in /etc/rc.conf

I have just set up a FreeBSD 8.1 in a VM and am trying to get it to do DHCP automatically. Right now, if I leave /etc/rc.conf like so: #ifconfig_de0="DHCP" then I can do dhclient de0 and it gets an ...
boatcoder's user avatar
  • 548
1 vote
2 answers
4k views

Getting an 'Access Denied' error when trying to create backup job for Backup Exec 10D

I guess the easy answer to my question is 'Something doesn't have the correct permissions'. =P. I read Backup Exec b2d NAS, but that didn't really answer my question. I have poked around the Admin ...
Markovs's user avatar
  • 43
1 vote
3 answers
45k views

How do you move Exchange 2007 Public Folders to Exchange 2010?

I'm upgrading my organisation's Exchange set-up from 2007 to 2010 (by provisioning a new server with 2010 on, moving the mailboxes across, then decommissioning the 2007 server). The move went by ...
Dai's user avatar
  • 2,299
0 votes
1 answer
6k views

Outlook 2010 or Exchange is sending plain text when it should send HTML. Why?

If I open the saved .msg file I see the following: <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=Windows-1252"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5....
user avatar
1 vote
1 answer
10k views

What do I set as the Primary and Secondary DNS when hosting an internal DNS Server?

I have an internal DNS server and a router. I can never figure out what I should set as my Primary and Secondary DNS on the router and dns server. Let's say my internal DNS server is 192.168.0.2 and ...
Micah's user avatar
  • 344
2 votes
1 answer
5k views

Event Log "Wake Source" when system wakes from sleep

So I've been troubleshooting sleep timers for our systems and have run across an interesting issue. I need a way to report how long a system was awake after a number of different inputs. Now, I've ...
Doltknuckle's user avatar
  • 1,274
0 votes
2 answers
347 views

DHCP server can't assign addresses to some machines

I have a dhcp server here, running the isc-dhcpd daemon. Some machines get an IP address fine, from syslog: Dec 8 08:42:21 nethandler dhcpd: DHCPDISCOVER from 90:e6:ba:f6:xx:xx via eth0 Dec 8 08:...
richo's user avatar
  • 978
2 votes
6 answers
975 views

Eliminate Email Blacklist by switching IPs and Servers

We are a legitimate company. We have had some issues in the past with Virus attacks/ Spam bots getting our email server blacklisted. After the most recent attack I have been tasked at coming up with ...
Campo's user avatar
  • 1,609
0 votes
5 answers
133 views

Domain setup and DNS configuration and a little email

I'm trying to move a customers domain to my webhost and setup some email accounts. All very basic for most of you guys I guess. But I cant connect the dots in my head. I have a reseller account at ...
ugreen's user avatar
  • 103
1 vote
1 answer
588 views

Zend isn't sending response back to Flash

I have a project created with Flash Builder 4, which uses Zend Framework to interface with a PHP script that interfaces with our MySQL database. The person that set all this up for us has left the ...
Travesty3's user avatar
  • 249
2 votes
4 answers
279 views

Easiest way to install Windows Server as a virtual machine on Windows 7 desktop?

I need to test a few of my programs on a Windows Server and was wondering what would be the easiest way to install and run it in a virtual machine. Should I install VirtualBox and install a Windows ...
Karlth's user avatar
  • 191
1 vote
1 answer
2k views

saslauthd and PAM: "Too many open files" error - saslauthd restart fixes this - what is wrong?

I have a Postfix mail server running Debian Squeeze. SASL authentication for secure SMTP is supported by saslauthd which relies on pam, which relies on winbind. This pattern seems to be reoccuring ...
labradort's user avatar
  • 1,169
2 votes
3 answers
503 views

Duplicate OS installation

I'm trying to copy my live server OS installation locally on a machine here so if something goes wrong we have a backup. I've installed the same OS version that's on our live system on this server ...
Ben's user avatar
  • 3,880
2 votes
1 answer
883 views

Apache Bench -- How to read AB data? My small, cloned dev server outperforms my production server. How do I rule out server hardware as an issue?

I'm getting very confused how to read Apache Bench data. Apache Benching my local machine gives me wildly different numbers between my dev linode and my production linode. My dev server is a 512mb ...
Yuji Tomita's user avatar
2 votes
3 answers
228 views

HyperV Failover

I am looking to setup a 2 server HyperV environment with a Dell SAN in the back. I am setting them in cluster format and have 2008 r2 Enterprise servers for the hosts. Is there any other software that ...
Ken 's user avatar
  • 23
0 votes
1 answer
397 views

SMTP Server recommendations

I have been running a webapp on webfaction shared plan and using webfaction smtp server fine. But I am migrating to linode vps and when I try to send emails using webfaction configuration (my ...
quarry32's user avatar
  • 255
0 votes
2 answers
1k views

OSX: See bonjour computers through VPN?

I use VPN to connect to my works network. Is there a way to see those computers through bonjour once I connect? Currently I need their IP to connect since I can't see them. Ideas?
Zed Said's user avatar
  • 727
0 votes
2 answers
1k views

Can I archive a RAID NAS by removing and storing the drives?

We have a netgear readynas pro with 6 drives. It's configured using netgear's X-RAID2 format, which is (I think) similar to RAID 5. The NAS is almost completely full, and needs to be cleaned up and ...
Marc's user avatar
  • 175
1 vote
3 answers
3k views

Nagios send mail when server is down

I am using nagios 3.06 to monitor the servers. When a service is critical, it sends a mail, but when a server is down no mail is sent. Even if all the services go to critical state, no mail is sent. ...
tzulberti's user avatar
  • 113
1 vote
3 answers
9k views

Generating self-signed, wildcard certificate for IIS 7.5 on .local domain

Is it possible to generate self signed, wild-card ssl certificate for internal domain on IIS 7.5 for testing purposes. For example I'd like common name to be *.domain.local Similar question for IIS 6 ...
zam6ak's user avatar
  • 155
0 votes
1 answer
117 views

Pushing image changes to multiple servers

I need the ability to push images out to multiple servers whenever they're updated. I've looked at Network Filesystems, but they're all but worthless due to their speed. Images can be uploaded to any ...
Glen Solsberry's user avatar
2 votes
4 answers
4k views

Mysql high queries per second, with high cpu usage

I have a dedicated server with 4gb of ram and a Quad core Xeon cpu, serving a site with 350k pageviews a day using the wordpress script. The problem is, mysql is eating loads of cpu, and on ...
Cameron Martin's user avatar
1 vote
1 answer
1k views

SQL Server 2008 Replicating Linked Server Tables

I have a SQL2008 server with a linked Sybase server. I have several tables on the SQL2008 server that I need have merge replicated to some SQL2008 Express clients. I also need to get two tables from ...
ctrlalt313373's user avatar
1 vote
3 answers
2k views

chmod of 400,000 files inside multiple subdirectories?

Howdy... I'm looking to chmod 777 a whole bunch of files. Alternatively, since it's more secure, I could also settle for a chown www:www of these files to make them web accessible. Now, since I have ...
Julian H. Lam's user avatar
1 vote
2 answers
7k views

Using local caching Bind9 DNS server to 'blacklist' certain domains

I have a Bind9 instance acting as a caching (forwarding) name server for a group of mail servers. Basically it queries a few specific upstream nameservers only when the domains arent in the cache. ...
mikewaters's user avatar
  • 1,215
0 votes
1 answer
202 views

EC2 Ubuntu 10.04 publickey error on a new instance (key works for an existing instance)

Tried booting through the aws dashboard. Also tried creating from the command line api tools. Checked ssh with -vvv and made sure it was trying the key (note that an old instance with the same key ...
waldo's user avatar
  • 103
0 votes
2 answers
168 views

wired to wireless to wired network

There's a small network that's in 1 building that we want to extend to another building about 75 feet away but running an Ethernet cable is not easily doable. I'd like to extend the network wirelessly ...
Jeff's user avatar
  • 277
0 votes
1 answer
5k views

Router's QoS settings: are IP address subnet masks necessary?

Setting up my router's QoS settings, I can prioritize traffic according to a source IP address. However, alongside this, I'm also given the option of inputting that address' subnet mask. Is it ...
Humphrey Bogart's user avatar

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