Xen And Network Interfaces
Jul 16, 2008
how people handle network interfaces attached to Xen domU guests.
When you give your user an IP address (or IP addresses) to use in their virtual environment, how are you isolating their interface from the rest of the system so that they cannot use an IP other than the ones you provided to them? For example, if customer A has 192.168.1.100 and customer B has 192.168.1.101.. how do you ensure that if customer A uses ifconfig to set their interface to 192.168.1.101 (customer B's IP), that customer B doesn't get affected?
Is there a way to do this with iptables on the dom0 host?
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Oct 19, 2009
For a server that use many virtual network interfaces (IP ranges) there is any posibility to find that 2 IP's from different IP ranges are pointing to same machine server?
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Oct 14, 2009
any experiences to report about purchasing used / refurb gear from either Network Liquidators (nweq.com) or Network Hardware (networkhardware.com)?
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Sep 25, 2006
Okay, I have been trying to get a VPN network setup here between our DC and our office for weeks now and have not been sucessful.
Here is our goals:
-use 10.x.x.x/255.0.0.0 as a local backend network at our DC
-be able to assign a 10.x.x.x address at the office to all workstations and be able to access any of the local machines at the DC
-we have a asterisk server that we use and want to run that on the same network, asterisk box at the DC, phones at the office
We are wanting to impliment this for allot of security procedures and for ease.
But I also want to be able to have this like at my house so I can still be on the VPN. I want to have my house, office and DC always connected and then setup remote ability too to dial in via VPN.
What would be the best way to accomplish.
I have already tried having a few Linksys RV082 and WRV54G but the remote and local networks must be different networks, so this will not work here.
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Apr 5, 2009
Does anybody know how can I determine which of the IPs within the network are used or not. I know that this can be archived by pinging each of the ips but there are 256 (192.168.1.0 - 192.168.1.255). I am using CentOS 5.
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Oct 29, 2009
what do i need to build CDN Network for my video streaming site with Flash Media server using rtmpe Protocol To protect my video from Downloading?
Do you know any Company Can Build this for you for example if i order servers from them?
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Mar 4, 2007
I bought another dedicated server yesterday and it was bought online same day. It was working fine yesterday during a few site transfers but now it would appear that I am losing network packets.
I have done a traceroute and ping tests and attached are the results. Please can anyone help. I think the problem is to do with NTT's network rather than server problems but please could someone else ping from their location to confirm this.
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Oct 30, 2007
I have some VPS with Knownhost and i use it for hosting purposes.
First, I'm not from USA.
Here in my country we have several ISP but one of them ( i guess the biggest one ) is having problems with their link that connects to another countries ( including USA ).
Many of my customers that uses this ISP complains about their site being down and also slow download speeds ( 10kb/s when they usually download at 200kb/s ). When they run a traceroute i see that the problem is related to the ISP.
I have already contacted the ISP but they doesn't seen to "care" about their clients and i guess they won't solve this in a near future.
My question is if there is a way to solve this problem on my own?
I was thinking about getting a link with another ISP ( the one that really works ) with static IP and route this to Knownhost VPS. I know that this isn't a cheap solution but is it possible?
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Mar 15, 2007
To make it simple, I am having some bays with dedicated servers. We offer 2 possibilities for bandwidth traffic: per Giga, or per MBit/s but I am having some problems. We currently use the router of our ISP better than buying a cheap low quality router.
- How can I know how much bandwidth does use on customer and how to limit if I have no access to the router ?
- How can I limit my customer from using free IP on the same block than he is ? We do configure server with IP and the same subnet, gateway and broadcast, so one customer could use free IP just so, and I would not even be able to know who is doing.
How do you limit and count this for your servers?
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Apr 20, 2009
This is 4th day i am having network issue on HiVeloCity.
Does anyone else here experiencing the same problem, or its only rack where my server is located?
I am unable to use my server for almost 4 days as i already said, and they still have no solution for me.
Every time i open up a live chat with support, they tell me that they are checking, working on it, having someone see it, etc. but problem is still there.
What should i do?
I am going to post pings from SoftLayer and my home to their main ip (their websites' IP where i see pocket loss as well)
... because of this my websites are opening so slow, and many ppl are complaining about this.
Since there is many experts on this forum i would like advise from you guys.
I would like to stay with HVC if they can fix this, if not looks like i will have to look for another provider.
Softlayer:
PING hivelocity.net (69.46.24.178) 56(84) bytes of data.
64 bytes from hivelocity.net (69.46.24.178): icmp_seq=0 ttl=119 time=30.4 ms
64 bytes from hivelocity.net (69.46.24.178): icmp_seq=1 ttl=119 time=30.0 ms
64 bytes from hivelocity.net (69.46.24.178): icmp_seq=2 ttl=119 time=29.9 ms ...
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Apr 25, 2009
Let say I have a computer network and the router is 192.168.1.1 and 192.168.1.2 to 192.168.1.10 is using workgroup called HOME and 192.168.1.11 to 192.168.1.50 is using workgroup called OFFICE.
All comp is WIN XP based client.
Now the qustion is, I'm sure that noone from home workgroup can access the office workgroup. But how about virus?
In case a computer which is reside into home workgroup is infected with network type virus, can that virus reach the comp which is reside into office workgroup?
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Apr 13, 2009
is any software out there on helping me do a network install of centos or any other Linux base OS. I want to avoid downloading and burning CD for centos. And when I want install it on multiple machines I would need to put in the several CD to do a complete install of the OS.
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Oct 8, 2009
i am managing my network with a linux box (iptables, vlans) + layer2 managed switch instead of layer3 switch.
On my linux server, a regular onboard network card is working just fine but i am planning to upgrade it to better one.
What would you recommend me?
* Intel Pro/1000 PT Gigabit EXPI9404PTL Quad Ethernet
* RB/4g 4 port 10/100/1000 Mbit PCI Ethernet (Mikrotik)
or any other?
I would like to build my own firewall/gateway server instead of paying thousands of dollars to cisco asa, juniper or etc.
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May 2, 2009
from: domaintools.com
Host IP Address Ping Time
1. 206.71.148.249 Timed Out
2. 206.71.148.249 206.71.148.249 126.20ms
3. 206.71.148.249 206.71.148.249 82.35ms
4. 206.71.148.249 Timed Out
5. 206.71.148.249 206.71.148.249 87.01ms
6. 206.71.148.249 Timed Out
7. 206.71.148.249 Timed Out
use: Enotch Networks
this issue from networks (enotch) or from my ISP?
because enotch staff said my ISP problem!
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Jul 6, 2009
We have two servers, one in our office, and the other in a colocation. There is a site-to-site VPN connection between them. I want to add the server in the office as a network place/drive to the server in the colocation, but I can't get it to work. I tried putting the local ip of the server in the office, didnt work.
Then I tried OFFICESERVERNAMESHARENAME and that didnt work either.
Office Server Local IP: 192.168.0.202
Colocation Local IP: 192.168.1.2
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Sep 29, 2009
I would like to know what kind of software to use for network discovery?
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Jul 12, 2009
I wanted to mount a folder located on server A to server B like we do in NFS.
But i wanted to use another software as nfs isnt working
Mine is Centos 5
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Apr 3, 2009
Any1 else having Network problems with HVC?
My server is not reachable.
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Oct 8, 2009
I've been lurking and posting on these forums long enough that I figure it's time for me to contribute something that might help other users: a quick review of 2AM Networks.
I have 2 dedicated servers with them and I couldn't be happier. Network uptime is 100% as far as I can see, the servers are delivered within their given timeframes (despite me ordering during a sales rush both times - I'm clever like that ) and with exactly the specifications requested.
Support is fantastic. I haven't needed it a great deal but all responses have been within 20-30 minutes and the answers are spot on.
You can see how good the prices are for yourselves in the dedicated offers forum or on their dedicated servers page but I'm pleasantly surprised to find that even the add-ons (IPs, etc) are the same price as more expensive competitors.
So if anyone is researching dedicated servers I'd recommend taking a look at 2AM Networks
(I'll report my server IPs to give this review some credibility)
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Jan 10, 2009
I have one VPS already and I was just wondering what would be the best way to utilise this and if anyone has any suggestions on how I could improve the network and how's best to set it up. I already have cPanel and WHM installed on the existing VPS.
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Oct 16, 2009
my site hosted with rapidswitch
but i have a problem with them
i work on my site... and suddenly i can;t access cpanel whm shh2 all of them
when i made tracert to my site
it gives me the following
Code:
1 30 ms 143 ms 56 ms 10.0.0.138
2 35 ms 7 ms 7 ms ASHAMS-R01C-C-EG [163.121.170.168]
3 69 ms 67 ms 81 ms host-163.121.197.234.tedata.net [163.121.197.234
]
4 117 ms 16 ms 9 ms host-163.121.183.137.tedata.net [163.121.183.137
]
5 9 ms 8 ms 8 ms host-163.121.184.209.tedata.net [163.121.184.209
]
6 9 ms 9 ms 9 ms host-163.121.186.253.tedata.net [163.121.186.253
]
7 44 ms 66 ms 66 ms host-163.121.202.129.tedata.net [163.121.202.129
]
8 308 ms 251 ms 188 ms pal5-telecom-egypt-1.pal.seabone.net [213.144.18
1.73]
9 86 ms 85 ms 86 ms mil52-mil26-racc2.mil.seabone.net [195.22.196.18
3]
10 86 ms 86 ms 86 ms ge-0-0-0-0.mil19.ip4.tinet.net [213.200.68.145]
11 91 ms 130 ms 124 ms xe-7-3-0.lon20.ip4.tinet.net [89.149.187.218]
12 91 ms 106 ms 91 ms rapidswitch-gw1.ip4.tinet.net [213.200.79.210]
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
....
30 * * * Request timed out.
what is the problem ?
after that site return after 10 minutes
it happened 3 times with me today
it happens with more than one people
how can i check it ?
or have i to change the hosting company ?
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May 30, 2009
How many of you out there really use or need private network?
if a private network really justifies the extra cost of switches and motherboards with dual-nics.
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May 20, 2009
both of the VPSs we have with them have been offline for more than 15 minutes now. As usual, their support has been incredibly fast and I have heard back from a NOC staffer that they are experiencing network issues, but want to see if I can find out how widespread this is.
If you have services with ServInt, are your machines currently unreachable?
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Oct 9, 2009
I have 2 servers and want to know which one is the best one network wise.
Going by the tracert test it looks like the second one is better... is that right?
Tracing route to host.mytestserver.org [208.75.148.78]
over a maximum of 30 hops: ....
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Jan 6, 2008
We're a small company that has outgrown dedicated hosting. We've got 8 servers currently with a well known hosting company, but the servers are starting to get old and we're growing. The cost of moving to colo just seem to make sense to us. We have a bunch of developers, but no network engineers. That being said, we're trying to figure out what we best need to move forward with going colo.
Sometime this month, we'll be purchasing 15-18 servers from Dell. We've already spoken to Colo4Dallas and plan to use their services. So we've got the servers and colo, but have no clue what we need with regard to switches, firewalls and remote-reboot.
1: What type of managed Cisco gigabit switch do we need? We don't know the specific model(s) that would be good for us. We want a hot backup and 24 ports. We manage multiple SSL sites (not sure if this is relevent) and 250+ ip addresses.
1a: Where do we manage ip addresses? We know we'll be getting a block of 250 ip addresses, but how do we assign ip address "a" to server "1"? Can we take that ip address and move it to another server if needed?
2: What type of firewall would be best for us, based on above requirements?
3: DRAC cards are pretty expensive, so we want a IP KVM switch. Any recommendations?
4: Remote reboote -- I've seen power strips out there that do this -- is that what we need, or is there another method we should consider?
5: Is there a company available in Dallas that we could hire to help us with these questions, or in setting everything up once we purchase the equipment?
We're not looking for the cheapest solutions, but the best ones.
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Dec 15, 2008
if anyone has any info on servebyte problems today? I haven't been able to access my vps / their homepage for a few hours..
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Jul 8, 2008
I know google response times are the best. So my plan is to get a dedicated server from a web host that uses the same network that google uses.
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Jun 20, 2008
I impulsively signed up for 2 years of web-hosting at Network Solutions @ $89 /year, thinking I was covered by their 30 day money back guarantee. Normally I due a little research but I was actually calling them about another matter and made an (uncharacteristic) impulse decision, thinking I was covered by the money back guarantee. Reading the fine print today, their user agreement says it will cost $24.95 per contract year (x2) to cancel. In addition to this bit of marketing shenanigans, a additional bit of research seems to indicate that they are not exactly a "preferred host" among experienced users.
Q's - Is it worth $50 to walk away from NetSol and start fresh with a new host? Although I'm a newb with simple hosting needs, I still get just a frustrated with poor customer as the next guy. Am I likely to encounter any added grief, compared to other hosting options, by staying with NetSol?
FWIW - I will need hosting for four small sites, two that are nothing more than "multi page" splash pages and two will be new vBulletin powered sites. The vBulletin sites will start simple, but hopefully progress as my skills and traffic grow. While I recognize my needs are modest by any standard, I don't want my learning curve with vBulletin (and as a first time Site Administrator) to be hampered by a mediocre host and/or customer service.
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Aug 20, 2008
i really love limestonesnetwork offers and i am thinking about take server with them , but i have some questions for limestone's clients
does limestone(LSN) great network and their server is Good AND no downtime with them?
and the second Q about the server Configurations does the Cpanel and Apache and the other PRIMARY aplications Installed on the Server when you recived it?
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