I am setting up a single sign on system using a ubuntu server with apache tomcat and CAS. My question is a bit more general though.
Clients will log on to a system by giving my web server their username/password and my web server has to authenticate and authorize them. Now to do this I want my web server to send some sort of request to another web server with the username/password and let the other web server check its database and send an ok/not ok signal back to my web server.
How would you do this? My first thought was using certificates to make the communication secure and then use http request and responses but I am not sure if this is actually possible.
I found a couple which i am thinking about at the moment, but what motivated me to make this thread is my current experience with geekstorage.
While the service was friendly and the transfer from my previous host was flawless, i am having a communications problem here that might lead to a disaster. And i explain myself:
When i made the transfer, i asked for a demo account, even for some days so i could test a real account on a real server and not just the links most hosts showcase that might actually be hosted on much better hardware and faster servers.
There was no option for that, but there was the option of me canceling my account at any time during a 60 day period with no questions asked. For varied reasons which do not really have something to do with geekstorage specifically but my own taste of the services, i want to move to a new host. However, even after 2 tickets & 1 pm at the geekstorage forum, i still have to hear back from staff and i am getting nervous because i am closing in on the 60 day mark and i am afraid that someone might be able to take advantage of that. I am not saying that a typical person would, especially since the tickets were before the 60th day, but i have seen a lot so i am getting nervous nonetheless.
This is the last place i would be willing to make this matter public, as i understand it might make some people think badly of geekstorage. This was not my intention at all and geekstorage can really be a great host for you, if it covers your needs well. But not replying to customers when they request something you shout you provide, while on the other hand, replying lightning fast when ordering or moving is infuriating at least.
I would happily go on and not post this, but either way, i am forced to do so, since i do not know of any other place i can talk with like-minded people on such matters. Sometimes, reviews can be good or bad, this one is bad but not about the services, rather than the way they communicate. Accepting that a product/service is not for you is a good thing and it does not mean you cant suggest a service YOU don't like to someone else that might do. But such ways are bad anyway you look at it and do not warrant any suggestions.
And keep this in mind. Even if someone from geekstorage replies to this thread, what will their excuse be for not replying FIRST at my tickets (and any other tickets for that matter), but at a friendly forum?
People expect to have the same kind of service as they get on day one. If you are only motivated to bring customers in, then you wont keep them for long, that's for sure. I was expecting the same kind of service i got on the first days, which i didn't.
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In a linux webserver how can you setup two servers to communicate via eth1 rather than eth0. We wish to use eth1 for internal communication between our public webserver and our database server. So that we do not incurr charges on the public switch.
I'm running CentOS with Paralells Plesk bundled Paralellls Premium Antivirus (Dr Web). After the latest yum updates DrWeb continously seems to crash and be restarted by the Parallells watchdog. By default there were no logs for DrWeb, but when I enable logging to a file it gets spammed continously with the following error:
Cannot create pipe for communication with scanning childs (Too many open files)and the Drweb process runs at 99% CPU for long periods. This totally fills the disk with logs and I've now disabled logging again and Drweb is back to continously being restarted by the watchdog.
I have a lot of questions here so if you can't answer them all I understand. even pointing me somewhere where I could get the answers would be appreciated; hardware sites focusing on server hardware, forums focusing on such, etc.
we plan to have three different types of servers:
- db server (self explanatory. mysql. for forums, mysql driven sites.)
- file server (lots of files around ~2-10MB, consistant 70mbps right now, but we want more room for upgrades. needs a LOT of storage room.)
- web server (lots of php files, but also static things like plain html, images, etc. also includes all misc services for the setup-- dns, etc.)
could I be given a rundown for which hardware each of the three should have? I don't need specifics, even just knowing that more ram is important here while cpu doesn't matter as much, or that the fastest disks available are a must, etc would all be valuable info for me. despite that, I certainly wouldn't mind specific hypothetical hardware configs.
for the database server I'm assuming the more ram the better. not entirely sure about the cpu? also not positive on disks...
for the fileserver, how much ram would be practical or useful? disk io will be an issue I'm because plenty of people will be pulling files at once so the disk needs to read from multiple places. scsi (and even raptors) are not an option as we need 750GB+ of space on a reasonable budget. more ram will take some load of of the disks, but how much is neccessary / reasonable?
for the web server I'm assuming cpu first, then ram, but it'll likely need less ram than the db server?
I'm more lost on the disks than anything. scsi on the fileserver is not an option under any circumstances due to $/GB. for the db & web server I'm willing to pay for scsi if the performance increase really does warrant the extra money, but I'd like to be convinced before shelling it out. if you have benchmarks geared at server hardware when it comes to disks I'd really appreciate it.
also, what's the best way to network these together when colocated? each one with a dual gigabit ethernet port and then the communications go to and from the router?
I was wondering if it is possible to cluster 2 web servers and 2 mysql servers with only one server working as load balancer.
I am planning to use LVS (ldirectord and heartbeat).
Let's say I have 3 IPs allocated to the load balancing server.
111.222.111.222 (Main IP) 111.222.111.223 (Web Load Balancing IP) 111.222.111.224 (MySQL Load Balancing IP) If a connection is made to .223 it would pass the request to one of the web nodes. If a connection is made to .224 it would pass the request to one of the MySQL nodes.
Is it possible to do this?
If not, can I run, for example, nginx on 223 IP address to provide forward proxy? (Then it would not be able to HA but the main point is to load balance so)
Also, what would be the best way to keep the data same on both web servers? This is a web cluster for a very high traffic forum with a lot of uploads every hour so it has to do real time synchronization. I heard that DRDB is only one way and not two way so I'm not going to be able to use this.
I am just colocating servers and managing them myself, and renting services off of them. In the future I would like to start offering dedicated servers as well. I am wondering if many companies do this, or if its more of a general practice to just setup as a reseller? The worst part that comes to mind is thinking of how to do billing for the bandwidth per month. With my setup I would only be offering flat bandwidth packages (like 2TB a month) but even so, I cant think of anyway to automate it so WHMCS knows if they went over, if so, how much, etc.
I have recently purchased new hosting with a new supplier which uses a different kind of control panel - cpanel. So before I transfer our organisations website across I want to spend some time playing.
We purchased our domains with 123 reg and the host we have been using for a while is namesco our new hosting package is with neither of these suppliers.
Before I transfer our primary domain to the new host I'm doing a dummy run with one of our other domains and that's where i've come up with this name servers question.
The new host gave me the name of their 2 name servers.
But when I went to my control panel at 123 reg to change the name servers they were not using namesco name servers they were using 123's.
Do I want to change the name servers to the new name servers or not? I'm a bit confused as i was expecting to see namesco names servers?
Is that possible to have ns1.mydomain.com ns2.mydomain.com
Two differnet severs that means each having two different IPS? If so how?
the reason I ask is that I see a lot of hosting companies have thousands of users and many severs but they all ask their customers to point only to two name server ns1 and ns2
Say you are renting 2 (or more) dedicated web servers. How do you go about getting it so that www.yourdomain.com goes to one of the web servers? Do you need a 3rd server to redirect the request, or what?
if anyone had a recommendation on where to buy a decent used server (Just for DNS Purposes). Anywhere other than ebay? Anywhere local in the Greater Seattle/Everett/Tacoma, WA Area?
Cannot see my servers from office but sites are up and running. Servers are at AtlantaNap. Maybe weather?
Tracing route to mysite.com [xx.xx.xx.xx] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 192.168.1.1 2 30 ms 30 ms 30 ms 10.21.1.1 3 58 ms 30 ms 30 ms at-4-3-0-1710.CORE-RTR1.PORT.verizon-gni.net [64 .222.212.44] 4 44 ms 44 ms 44 ms POS3-0-0.GW12.BOS4.ALTER.NET [208.214.102.193] 5 44 ms 44 ms 44 ms 0.so-3-0-0.XL2.BOS4.ALTER.NET [152.63.22.182] 6 63 ms 63 ms 137 ms 0.so-2-3-0.XL2.ATL1.ALTER.NET [152.63.101.49] 7 63 ms 63 ms 63 ms 0.so-7-0-0.XR2.ATL1.ALTER.NET [152.63.86.102] 8 63 ms 63 ms 63 ms 194.ATM7-0.GW9.ATL1.ALTER.NET [152.63.85.109] 9 63 ms 63 ms 64 ms internap-gw.customer.alter.net [63.122.231.198] 10 64 ms 65 ms 63 ms border2.tge-4-1-bbnet2.acs002.pnap.net [64.94.0. 83] 11 64 ms 63 ms 64 ms giglinx-13.border2.acs002.pnap.net [70.42.180.15 8] 12 * * * Request timed out. 13 * * * Request timed out. 14 * * * Request timed out.
Does anyone know of an FTP client that lets you transfer files directly between one server and another (to avoid downloading/uploading)? Preferably that runs on Linux!
what exactly are the benefits of using such RAMs which cost about double of the normal desktop RAMs? not to mention the extra costs incurred for special motherboards?
My personal experience is that VPS is superior to low end celeron servers, because the overall performance is much better. I'd be curious if others agree, and if not, why not.
I've just ordered my first VPS (unmanaged) and the only thing I'm really concerned about is setting up/using a DNS server.
I think I have 3 options.
1. Set up BIND on my VPS... this doesn't look like much fun and offers no redundancy. I'd prefer not to do this.
2. Outsource the DNS server. I'd like to use a free one if possible [url] looks good... anyone had any experiences?) but suggestions of cheap services are also webcome.
3. Use my registrar's DNS server. I'm using namecheap at the moment. Here's the screen that comes up: [url]
Would that work? And create subdomain.domain.tld?
Finally, I think I'd need to select 'user' at the bottom and enter an MX record. Would this be domain.tld?
Personally I would never follow this route (hosting gameserver(s) on a VPS), but maybe some people on these forums do and I'm quite interested in what these people run (game+slots), on what hardware/OS, at which host and their opinion about the performance of it.
