Using 2 Separate Network Cards
Nov 8, 2007
I am setting up an internal network for management only. So, assign an IP for the second NIC, and activate it, but it seems not working. I have tried this
#ifconfig eth1 192.168.2.14 netmask 255.255.255.0 broadcast 192.168.2.255
#ifconfig eth1 up
checking dmesg, it shows the NIC is up
# dmesg
ADDRCONF(NETDEV_UP): eth1: link is not ready
tg3: eth1: Link is up at 100 Mbps, full duplex.
tg3: eth1: Flow control is off for TX and off for RX.
checking routing table seeing the 192.168.2.x routed through eth1
# route -e
192.168.2.0 * 255.255.255.0 U 0 0 0 eth1
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth1
default reserve1.somename 0.0.0.0 UG 0 0 0 eth0
Repeat those steps for other boxes, but when pinging, all return errors
# ping 192.168.2.20
PING 192.168.2.20 (192.168.2.20) 56(84) bytes of data.
From 192.168.2.14 icmp_seq=1 Destination Host Unreachable
From 192.168.2.14 icmp_seq=2 Destination Host Unreachable
From 192.168.2.14 icmp_seq=3 Destination Host Unreachable
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Aug 29, 2007
to setup a Windows server that can support the failure of the switch that comes before it in the network diagram. The idea would be that if the 15A circuit the switch was on failed, or the switch just died, the server would still be online.
I already have two switches in spanning tree just before the server. Is there a way to assign a single IP to the server on both its network cards and connect each card to a different (spanning tree'd) switch?
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Apr 17, 2008
Not sure on industry standard here, but I am now curious about this issue.
I placed an order with a company, paid for a setup, first month etc. On receiving the order, I was given the wrong product. Which was fixed for me within a few days. I was happy to even pay for this which the host declined.
Fast forward a week or so. Still in the first month, and issues are still not resolved.
I've now removed credit card information from the billing system (yes I know, shouldn't do it) with good reason. I expected to have to pay another month, and that was fine.
Anyway, month ends and I am charged on a credit card that was removed from the billing system. When confronted about it, I was told standard practice. I think this is highly unethical to hold details after they had been removed.
Is this indeed standard practice in this industry? Do a majority of other hosts do the same thing?
Now again, I am only to happy to pay another month, just not from a credit that was removed, which is why it was removed. I would've sent a check, or done a deposit. I do understand that fraud, etc is very high in this industry. I have a host or two not give me service because of the email address I used during sign up, but when changed, I received service.
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Dec 9, 2008
i have several servers here but only basic knowledge about raid
My understanding of raid is like this
I have a server with 4 disk on it and if i put it in raid 1 and want to install an OS i can only see 2 of the disks right? (thats how it works on my ibm server)
But with my other servers if i put them in raid 1 and want to install OS i can still see all 4 disks thats not right is it?
anyone that can recommend a pci raid card for 4 sata2 disks?
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Feb 2, 2007
The issue we have is that server1 (web) has the load very high, compared to server2 (mysql). Sever2 stays at 0.5 during peak time.
I must mention that we have very heavy traffic hits only for 30min/day, then things calm down.
I simple diagram would be:
[USERS] <= NIC1 => [SERVER1 WEB] <= NIC2 => [SERVER2 MYSQL]
So I think we can install a load balancer and upgrade the NIC cards, in order to solve this problem.
What I thought is this:
In server1 (web) install 2 NICs, one facing the users and one facing the server2 (mysql).
Currently we have a 100MB NIC card into each server.
The 95th is way to high at peak time, over 500MB so I was thinking on installing a 1GB NIC facing the server2 (mysql).
My question is:
What is the best way to install a second NIC into an existing configuration?
Do I need a Cisco 2970 switch?
Example:
[USERS] <= NIC1 | NIC3 => [SERVER1 WEB] <= NIC2 => [SERVER2 MYSQL]
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Jun 17, 2008
Will the Dell-made PERC 4 DC (or SC) RAID cards work in Sub v20z servers?
The Sun v20z specs :
[url]
From what I gather, it should in theory work, as they are both PCI-X and Ultra320 SCSI ... right?
If they won't work, can anyone recommend any raid cards that will?
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I have a question maybe someone can help with. Is it possible to set the IP address on a IPMI card before a system ships? That way when the customer gets it, it already has the IP address set to whatever was agreed on and they can log right in using that IP address?
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Jan 10, 2007
I have linux dedicated server and like to setup dual NIC cards for extra redundancy.. in case one NIC card fails.
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Jan 30, 2008
I have been running 1 site on my VPS for some time, but there is still a lot of things I don't understand 100%. Now I want to add another site to the VPS, but keep the sites as separate as possible, and I have no idea how to accomplish this.
Lets say my first domain is football.com. This means I have these settings:
I got 3 IP's: x.x.x.1, x.x.x.2 and a new one x.x.x.9
My hostname is host.football.com (x.x.x.1)
My site is www(dot)football.com (x.x.x.1)
Nameserver NS1.football.com (x.x.x.1)
Nameserver NS2.football.com (x.x.x.2)
Reverse DNS on x.x.x.1 to host.football.com
Exim running on x.x.x.1
Lets say my second domain is water.com. It's no problem using WHM and run this site on x.x.x.9, but there is a lot of references to football.com (nameservers, hostname and probably emails).
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Oct 14, 2009
I'm more of an application programming guy than network/internet guy so excuse any ignorance on my part.
I am currently using shared hosting on an IIS server.
I running SMF Forums and a business on the IIS server. I have a payment system that I've programmed tied into the MySQL SMF database. This payment system uses ASP.net. I'm a .Net programmer. SMF is also being currently ran on the IIS server, and it does ok.
I'm really wanting to start running my forums on a separate Unix Server.
So my question is, can i run my ASP.net scripts on my IIS server that access the MySQL database on a separate Apache server? The Apache server and IIS server would have different domains (I'm guessing that'd be required).
I think this is possible, but wondering what others think. All I should need to do is change some connection strings on my Web.config on my IIS server to point to the new SQL databases.
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Oct 12, 2007
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Then I established the ssh tunnel and everything looks good, but the applications just didn't see it. I did some experiments and if I set it to 127.0.0.2 it works, but not on 127.0.0.1.
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Dec 12, 2007
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Jul 16, 2008
I know this is not an awesome idea, but I'd like to try it. A friend and I want to share (home) servers. We both have fairly decent upload and we both have nice (dual core, 1GB RAM+) servers, so that's good. Another thing I'd like is failover for when one of our servers go down (I've got that part covered with my own DynDNS client). We're both running Windows servers.
Since I cant really use a load balancer in this situation, we'll be using round robin DNS. Now here's the questions:
How do we keep our MySQL servers synced?
Should I use rsync or something else for files?
How do we handle PHP sessions across servers?
If you don't think the load balancing thing will work out, I'd still like to do synchronization and failover. My friend is in another state by the way, we're not neighbors or anything so we can't just run some cables from one house to the other.
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Nov 2, 2009
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May 21, 2009
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Apr 8, 2009
my vbulletin site has been growing significantly and the server has crashed many times due to the high loads. My server guys tell me that mysql is hitting loads of 30 (not sure what that means) and i need to get another server for mysql alone.
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Jan 13, 2009
if it is better to host two related websites on single host or on separate servers?
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Aug 6, 2008
I'm starting to see this, or maybe it's always existed, but it seems like bigger sites are hosting their images on external servers. I've even seen some sites use Flickr as the host for all of their images. I guess for Flickr that means you have a guarenteed image CMS, but I really don't see that as why Flickr was created.
I'm sure there are bandwidth advantages, and maybe that's the main reason. Is there a point where the traffic gets so high that moving images off site would improve load times and sever loads? Is it a worthwhile endeavor for smaller sites? I'm curious to see what the thoughts are on this trend.
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Apr 24, 2008
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Nov 28, 2008
In an effort to install an SSL cert for a subdomain (secure.domain.com), I recreated my accounts in WHM. Account 1 has userA and domain domain.com, and Account 2 has userB and domain secure.domain.com. I think I have everything back to normal, but I want to get everything stable before testing the cert install.
My question is, when visiting cpanel.domain.com, to enter the cpanel for that account, I am able to login with both userA and userB credentials, and the same when logging in to cpanel.secure.domain.com. As stated, I have separate WHM accounts for the main domain and the secure subdomain, I have dedicated an IP address for the secure subdomain, and the main domain uses the share IP address, and also, there are separate DNS zones setup for the secure subdomain and the main domain.
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Feb 26, 2007
We have a VPS service with ServInt to host only our website (www.ourdomain.com for example) and not our email - the nameservers are also not on our VPS. This all works great but it means that any emails which are sent from our VPS to xxx@ourdomain.com are getting routed to the VPS and not the email server and so are being dropped.
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May 22, 2007
if it might be a good idea to have a separate forum just for the discussion of server hardware.
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May 18, 2007
I've setup two servers with Webmin on them. One is a master nameserver, and the other is a secondary nameserver.
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When I add a domain on DA.. it asks me to do all the DNS stuff there too.
Now, from what I understand, if I add a domain to a server, I host its DNS on that server too. Correct?
But then again, I've also seen many installations where the DNS servers are two completely different, even geographically, servers. And the main http/mail/db server(s) are different too.
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Mar 21, 2007
here's my current setup has my stuff running on 2 separate "self contained" servers (eg; each runs their own apache/php/mysql):
Main site/server:
content: mostly static content (no mysql, very little php). currently has about 4tb/m traffic. in the summer it could push up to 6tb/m
hardware: P4 2.8ghz. 1gb ram. this server has no problem handling the load. only problem is bandwidth (i have to get it off the current host)
Forums site/server:
content: running vBulletin. currently 400-500 peak (probably jump to 800 peak this summer) users active per 15 mins.
hardware: 64bit dual Opteron 242. 4gb ram. it's absolutely griding that to a halt at peak times. it acts like 4gb memery isn't enough (it will run fine then eat through most of the 4gb. grind to a halt, then recover) personally i think it was setup/configured wrong but i've had multiple people look at it and nobody can find anything wrong in the apache/mysql settings.
What I want to know:
what type of server setup should I start migrating to? should I keep both parts of the site separate? eg; main site on one server, forums on another server(s)?
what i've sorta been looking into is 3-server setup.
(server1) main apache/php server. probably on unmetered (honestly don't think i'll find anything else that offers high enough traffic). run the main site and the vB php from here
(server2) dedicated mysql 'read only' server (server3) dedicated mysql 'write only' server.
and have mysql read/write synced and have all 3 servers networked directly together. i have a friend running a single mysql driven site using this setup and it works really well for him.
is this overkill for me? should the current dual Opteron be able to handle the forums and i just need to hire someone smarter, or is there some other setup that would work better for me? i'm tight so i want to go cheap as possible, but I also realize i need room for summer traffic expansion that always hits us.
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Nov 4, 2009
If anyone can help me in doing this, I'd appreciate it. I searched to see if anyone had already done this, but I didn't find anything so my apologies if this has been answered before.
Here's what I have: 1 dedicated server with a static ip of course and currently, I run all my sites off of this machine as well as my few clients. The server is running CentOS and Apache.
What I want to do is build a new server at my house/office and create a secondary webserver that mirrors my current setup. I've heard about using Rsync to do this, but I want to know if it'll allow for the balancing effect I'm looking for.
Rather than use this 2nd server as a backup only, I want also use it for dns resolution. Right now, all my sites are using two nameservers (NS1.2D.NET and NS2.2D.NET), but they both point to the same IP address at the same location. I want NS2.2D.NET to point to this 2nd server for redundancy (in case the other location goes down) and also for balancing (to spread traffic over two servers instead of just one).
Eventually what I'm going to do is move all my clients and websites to one location again, but my own location so I can save the expenses of dedicated hosting off-site. However, I want to use this setup as a test to see if my own location will be able to handle the traffic and such.
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