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22
votes
10answers
43k 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 ...
14
votes
3answers
72k 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 ...
12
votes
2answers
13k 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 ...
10
votes
4answers
11k 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 ...
7
votes
2answers
4k 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 ...
7
votes
1answer
328 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 ...
6
votes
5answers
12k 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
3answers
9k 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 ...
5
votes
4answers
14k 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 ...
4
votes
4answers
313 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
11k 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 ...
4
votes
3answers
8k 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
1k 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
3answers
10k 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
2answers
149 views

Other domains on shared server showing my webpages

I own a website (gosportweather.co.uk) which is hosted by the same company as other websites on a shared server. The problem is I am noticing that these other websites appear to be showing my webpages ...
4
votes
1answer
200 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
1answer
5k 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 ...
4
votes
1answer
1k 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
1k 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
480 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. Then I pinged it with JustPing and it is reporting that my website is also down from all ...
3
votes
4answers
29k views

FTP/FTPS/SFTP/SCP - Speed comparison [closed]

How do FTP, FTPS, SFTP, and SCP compare in terms of transfer rate and how can I compare them through testing?
3
votes
5answers
5k 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
176 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
1k 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
3k 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
73 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
346 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
2answers
85 views

Host File entry depending on own IP?

I have two different Networks at two different places: 192.168.10.0 / 255.255.255.0 192.168.20.0 / 255.255.255.0 Now I want to define a host entry on my windows pc, who maps either 192.168.10.1 or ...
3
votes
1answer
706 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
2k 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
3answers
11k 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 ...
2
votes
2answers
284 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
1answer
10k views

Centos /etc/hosts doesnt resolve my hostname

[root@data001 etc]# hostname data001.dd [root@data001 etc]# ping data001.dd ping: unknown host data001.dd [root@data001 etc]# How do I fix this? This is on a fresh Centos6 build...does this not come ...
2
votes
2answers
10k 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
2
votes
3answers
896 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
2answers
439 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 ...
2
votes
1answer
118 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
1answer
392 views

How does a browser request from CNAME?

Let me put it this way: 1.cname.com has a record of X.X.X.X www.domain.com has a record of 1.cname.com When a user request www.domain.com from within his/her browser,his/her browser will send an ...
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
160 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
157 views

AWK + Host lookup

Currently using the following line to get top 20 ips sorted by requests: grep 'GET /' /var/log/nginx/access.log | awk '{ print $1 }' | sort -n | uniq -c | sort -rn | head -20 Output: 575 ...
2
votes
3answers
138 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
1answer
1k 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
463 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
2k 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
1k 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
108 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
145 views

Does running a Control Panel on my server affect performance? [closed]

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
3answers
2k 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
7k 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, ...