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17
votes
10answers
24k views

Running 100 virtual machines on a single VMWare host server

I've been using VMWare for many years, running dozens of production servers with very few issues. But I never tried hosting more than 20 VMs on a single physical host. Here is the idea: A stripped ...
9
votes
3answers
6k views

Apache CustomLog to log full URL

I'd like to add a CustomLog directive to my apache configuration to log the full URL requested (or at least the host portion of the URL). I have several domains being handled by the same instance of ...
9
votes
2answers
31k views

How do i find out what my IP Address of my MySQL host is?

I have a free domain running at x10hosting (x10.bz), and I want to find out the IP Address of my MySQL host for it, so I can contact the MySQL database from another host. I've already added that host ...
7
votes
1answer
251 views

Linux/Unix - /etc/sudoers - host definition

can anybody tell me in which case the sudo host definition is useful? I mean this part of a line in the sudoers file: bob host1 = NOPASSWD: reboot In which environment (except sudo via LDAP) do I ...
5
votes
5answers
6k views

associate name with ip for ssh?

Let's say I just have an ip address for a server and I don't have a domain with it (it's just a database server, so it doesn't need a domain). I don't want to have to remember the ip address every ...
5
votes
2answers
2k views

Why can host and nslookup resolve a name but dig cannot?

Can anyone tell me why this is happening? I can resolve a hostname using host and/or nslookup but forward lookups do not work with dig; reverse lookups do: musashixxx@box:~$ host someserver ...
5
votes
2answers
5k views

Auto-storing server host key in cache with plink

i've been trying to issue commands using plink to retrieve information from my external server. note that these plink commands are ran from a binary that expects no input from the user. is there a ...
4
votes
4answers
181 views

What's the point of changing the hostname on my server?

I know that changing my DNS records to point to my IP address is how I get my server accessible, so that a request for myDomain.com points to my IP address. With that said, why does a machine need to ...
4
votes
3answers
5k views

Cisco ASA 5505 :: Techniques for limiting consumed hosts (max 10 with base license)

Was not aware that ASA 5505 base license restricts number of concurrent hosts to 10 (RTFM, I know). Running a "show local-host" I see my host count at 8, a bit too close for comfort with a production ...
4
votes
1answer
590 views

Subdomain on another host (another IP, another provider)

Let's say my main domain is domain.net and i'm using it on a Media Temple (gs) server. I have my blog on the subdomain blog.domain.net Now I want to host my blog on my new VPS from Linode. So, I ...
4
votes
2answers
6k views

Apache Virtual Host Config www vs non-www, Rewrite or sServerAlias?

We have a central httpd.conf and we include confs for various virtual hosts. Until today, we didn't really have a need for "www.subdomain.site.com" domains, only "subdomain.site.com." Now we do, so I ...
4
votes
1answer
82 views

“Couldn't resolve host” for any external content

On our site we run a few different scripts for various sites (uploading to amazon s3, data from chartbeat, script to count twitter followers) and all of them just stop working from time to time. They ...
4
votes
3answers
7k views

Ubuntu 12.04 Netinstall URL? Xen Host

Well I have an Xen server, I've got a CentOS container up fine but a friend of mine wants (oh god) Ubuntu Server 12.04, why he can't use Debian is beyond my understanding. But anyways, I can't ...
4
votes
1answer
785 views

Hyper-v on 2012R2 startup gen1 vm causes the host to freeze up

I've searched a lot to resolve the following issue, but nothing helped me. My problem is, that starting up a first-gen vm locks up the whole host. Only a hard reset helps. Second-gen vm starts and ...
4
votes
1answer
741 views

Rate/Bandwidth limiting with haproxy, what are the options?

I have tried reading up on different methods of limiting (rate/bw) with haproxy, but seems the only working implementation I find is per /32 ip based limit. Is it possible to do rate limiting based on ...
3
votes
3answers
407 views

Why is DownOrNot and JustPing reporting that my website is down?

I was pinging my site with DownOrNot and it is reporting that my website is down from ALL locations: http://www.downornot.com/qweop Then I pinged it with JustPing and it is reporting that my website ...
3
votes
5answers
2k views

Pointing www to a CDN(Akamai)

Why would someone point(CNAME) www.example.com to a cdn? When I run host on Etsy, I get a [c]$ host www.etsy.com www.etsy.com is an alias for www.etsy.com.edgekey.net. www.etsy.com.edgekey.net is an ...
3
votes
3answers
165 views

is it possible to host 2 sites on a single domain but 2 different IPs?

I have Server A which hosts www.mysite.com I want to create and host a site on Server B, but configure it to: www.mysite.com/theSiteAtServerB TheSiteAtServerB is a completely different site from ...
3
votes
3answers
810 views

VirtualHost not working - always shows default

I have been trying to get this work for hours now. I am trying to set up virtual hosts with Apache on my VPS. I have the following virtual host file in my sites-available folder : <VirtualHost ...
3
votes
1answer
974 views

How do i reference redirected host drives in a remote desktop session

When I remote desktop into a server, for example, local drives and mapped network drives from my host computer appear as ON . I can access these drives using Windows Explorer, but I also need to ...
3
votes
1answer
65 views

Prevent email interruptions while switching web hosts

I have a website that is currently hosted at a company that also hosts my email address. I am switching hosts soon, and cannot have any interruptions in emails. What is the best way to go about this ...
3
votes
2answers
203 views

Why is hostname lookup in ssh returning a different result?

I have one machine with two ips, Something like this, (/etc/hosts) 10.204.65.18 blahdb01.us.oracle.com blahdb01 10.204.63.56 blah01.us.oracle.com blah01 Now, whenever I do, ssh blah01 ...
3
votes
1answer
414 views

How to reset and persist the hostname and FQDN of an WIdows Azure Centos instance?

How does one reset a hostname and domain name (FQDN) to localhost.localdomain on a Centos 6.2 Azure Instance? I've tried editing /etc/sysconfig/network, /etc/sysctl.conf, setting the hostname ...
3
votes
1answer
1k views

Browser says “Waiting for www.xyz.com” for a very long time [closed]

When I load my website (hosted with Ipage). The browser often takes an incredible long time saying "Waiting for www.xyz.com ..." before any elements of the site actually appear. After this "Waiting ...
2
votes
2answers
133 views

linux: shorter 'host' command output

I'm using dns to manage my virtual hosts. In order to do so I query my nameserver with the host command for for certain values is need. For example: > host -t txt mycl1.vz mycl1.vz.myserver.de ...
2
votes
3answers
826 views

KVM: Can one have a graphical OS as the guess OS running on a host OS such as Ubuntu Server?

Perhaps this is a foolish question, but searching for answers proved fruitless as so many of the search terms come up in this domain anyway, but here goes: Is it possible to have a graphical OS (e.g. ...
2
votes
3answers
85 views

when use . after myhost.mydomain in config files?

I noticed sometimes '.' can be seen at the end of myhost.mydomain so it is myhost.mydomain. ^^^ statement. Where should I use this '.' at the end? Currently in etc/hosts I ...
2
votes
3answers
4k views

How to set multiple subdomains in the host file (DNS)?

I have a lot of subdomains in the main domain xxx.zzz So, for this domain, I can have aaa.xxx.zzz bbb.xxx.zzz ccc.xxx.zzz ddd.xxx.zzz eee.xxx.zzz ....ETC.... Istead of adding each subdomain in ...
2
votes
1answer
110 views

host dns lookup curiosity

Can anyone help me understand this :-- %)-- host brahma.mksh.net Host brahma.mksh.net not found: 3(NXDOMAIN) now when I run dig with trace.. I get the A record for brahma.mksh.net that I've ...
2
votes
4answers
7k views

Setting new hostname on CentOS, it changes back after restart

On CentOS (5.x) I have a VPS that has hostname set to "olddomain.com", at least this is the domain I am getting when typing "hostname" command. I want to change it to 'localhost.localdomain' because ...
2
votes
1answer
2k views

What's the difference between `dig` and `host` when querying a specific name-server?

I was using this command to verify if I'd set things up correctly with a DNS provider: host hostname.example.com ns1.example-nameserver.com As far as I can tell, this asks ...
2
votes
1answer
62 views

Sort Dynamic Virtual Host Folders

I'm trying to set up a dynamic virtual host for the first time with apache. Is it possible for be to implement some sort of folder sorting system? For example the first ten sites are in: /Vhosts/1/ ...
2
votes
1answer
136 views

What is the terminology and technology used to assign multiple IP addresses to a single host name? [duplicate]

Possible Duplicate: Point Multiple IP Addresses to a Single Host Name I want a host name such as "www.dacracot.org", to point to multiple IP addresses, "1.2.3.4" and "1.2.3.5". Is this set ...
2
votes
2answers
2k views

Where does cPanel store websites?

When I was using Plesk it was simply under /var/www, however it is empty when I have at least 2 sites now on a cPanel machine. What is cPanel's architecture in terms of storing files?
2
votes
1answer
785 views

Accessing guest VirtualBox console via headless host SSH?

I've looked quite some time for this, and just can't find anything. Is there a way to access a VirtualBox guest consolle, via headless host SSH session? I.e. without any RDP/VNC protocols, just like ...
2
votes
2answers
384 views

Any way to speed up my website in other countries?

My website(social network) was built with django, cassandra && memcache, rabbitmq, mysql it used rabbitmq to serve POST requests (often it user submitted contents), to balance the load of ...
2
votes
1answer
89 views

Nginx Virtual host 403 Forbidden

I have just brought a domain name (example.com) and have setup a URL frame redirection to my server's IP XXX.XXX.XXX.XXX, however I am getting a 403 forbidden error. I can access pages fine via the ...
2
votes
2answers
217 views

I have a list of netbios names and want to find the IP addresses

DNS is spotty in the network, but netBIOS in enabled on most machines. I have a dozen netBIOS names for Windows servers somewhere in the network. It is impossible to just go to all machines, log in ...
2
votes
1answer
104 views

Fall back if site is down

Alright so I was just wondering how one would go about setting up a system that points to a different server if your main server goes down. In our instance we host a site on Windows Azure, but when ...
2
votes
2answers
125 views

Does running a Control Panel on my server affect performance?

I'm thinking of getting a Dedicated Server from Leaseweb and noticed they offer a nice range of Control Panels to make life easier on the sys admin. I'm wondering, though, do these control panels ...
1
vote
7answers
377 views

How would you create a web host provider?

What would be required to create a web host? Servers? Nameservers? Software? Cpanel? DNS? If you were to start a web host from the ground up, what would you do? What technologies would you use? ...
1
vote
3answers
2k views

Configure proper DNS records for separate web host and e-mail server

I'm inheriting a mess and I need your help to straighten it out. The two primary objectives are to alter the DNS records for 'Example.com' so that the "internally hosted" email server (Domain ...
1
vote
3answers
735 views

IIS accessing site without port

I have deployed our company intranet website to IIS 7 server added the following binding info. IP Address: All Unassigned port: 3333 domain name: subdomain_name.domain_name.com Although the site ...
1
vote
2answers
6k views

“host” command returning NXDOMAIN on a domain with nameservers

I'm trying to check a domain's availability using the "host" command and looking for NXDOMAIN response. I've come across an odd domain though: host -W 1 antiquejewelry.net This returns NXDOMAIN, ...
1
vote
2answers
6k views

How to restart after making chnages to hosts.allow

I have made chnages /etc/hosts/allow like ALL:ALL I have to restart the whole computer to check that , is there any service which i can restart to check the setting
1
vote
2answers
2k views

Cannot login to mysql after setting incorrect mysql privileges/host

On CentOS 5.x I used webmin panel and I was in mysql settings, I was trying to allow "root" to login from my home ip in addition to localhost. In the hosts list I had "any" or "localhost", I tried to ...
1
vote
2answers
187 views

Difference between 'Uplink' and Port Speed

Some web-hosts use the term uplink and some other hosts use port speed, relating to servers. Why? Is there any difference?
1
vote
2answers
160 views

Confused about Linux Hostname, DNS Hostnames and FQDN Hostname

This might sound stupid and basic to some of you, but I am still so confused about this even after reading numerous sources on the net. My questions still unclear are: Is the Hostname in machine ...
1
vote
1answer
250 views

Setting up a web server on a virtual machine viewable from the host and all other vms running on the host

I have set up an Apache web server on a windows 7 ultimate VM guest machine. This machine also has all the software I need to develop server-side scripts (aptana, VS 2008 etc) The VM is bridged with ...
1
vote
2answers
260 views

iSCSI NAS supporting VMware Esxi 5.1 servers in a software development environment [closed]

I would like to build (or purchase) the smallest, quietest most energy efficient servers that I can for a low demand environment. These would only have a small disk for guest swap files, a CPU (XEON ...