Search Results

Search found 9715 results on 389 pages for 'servers'.

Page 6/389 | < Previous Page | 2 3 4 5 6 7 8 9 10 11 12 13  | Next Page >

• System that splits passwords across two servers

  - by Burning the Codeigniter

  I stumbled upon this news article on BBC, RSA splits passwords in two to foil hackers' attacks tl;dr - a (randomized) password is split in half and is stored across two separate servers, to foil hackers that gained access to either server upon a security breach. Now the main question is, how would this kind of system would be made... codespeaking, for PHP which I commonly develop on my web applications, the database password is normally stored in a configuration file, i.e. config.php with the username and password, in that case it is understandable that the passwords can be stolen if the security was compromised. However when splitting and sending the other half to the other server, how would this go on when making a communication to the other server (keeping in mind with PHP) since the other server password would be stored in a configuration file, wouldn't it? In terms of security is to keep the other server password away from the main one, just exactly how would the main server communicate, without exposing any other password, apart from the first server. This certainly makes me think...

  Read the article

• What are the best Small Business Servers/Storage

  - by nasty

  I am a web designer/developer. Work mostly with large files 50mb+. I currently have a MyBook Live which is connected wirelessly to my MacBook Pro and Dell desktop PC running windows. Since its connected wirelessly(it doesnt have ethernet port) the files are loading slow and its hard to work staright away from my server. Now im looking for better storage/server solutions and looking at dell.com.au/servers. Im not sure which one to choose. Can you guys give me some suggestions whether I should buy the AUD599 or should I upgrade. Is there any stack guys haveing the same issue as me? t

  Read the article

• ACL tool for audit of Ubuntu production servers

  - by migrator

  In my production environment, I have close to 10 Ubuntu 12.04 Servers and I want to get the list of users from them. I am looking for some kind of script or tool (non-gui) to get the same. Yes, I can get the list from /etc/passwd and /etc/groups files but it would be good to have a tool or script to do this due to the following reasons. I have right now 10 systems in Ubuntu and 30 systems in Windows 2003. I am recommending my organization and IT to move all the systems to Ubuntu except the one running MS SQL server We do not have good Ubuntu admins with us and they should not mess up with the system if I give some manual commands I also need to find out date of creation of user, group, password standards like strength, expiry etc Please help me as I want to automate the process and get the list on weekly basis from IT team. Thanks in advance.

  Read the article

• Managing scalability and availability with two servers running Apache Httpd, Apache Mina and MySQL

  - by celalo

  Hello, I am not a developer and I don't much experience with scalable server architectures. But I am in need of a highly available and scalable system for one of my projects. There is going to be two servers I am going to use for the time being. Both with 4 core CPUs and 8 GB RAM with RAID structures running CentOS 5.4. I will also have feature called "Failover IP" which enables to direct an IP address to another server within short time. The applications which will be run on the servers: There is going to be a Java application based on Apache Mina server for handling TCP requests from some hundreds of network devices where the devices are going to send request as much as one request per minute. Handling those requests, includes parsing the requests and inserting a few rows to the Database. Parsing requests before inserting data to the DB does take neglectable time. There is going to be MySQL server, as I stated above. Also there is going to be a PHP web application running on Apache Httpd Server which uses the same DB with the Java application. What I wish to have is to make use of those two servers at the most. I was imagining to have the servers identical, sharing the work load. MySQL could be a cluster maybe? And if some application fails or the whole machine goes down, the other will continue serving the requests seamlessly. Reminding that a "Failover IP" feature will be available for me to take advantage of. Also, It should be kept in mind that number of servers could increase in time, to meet the demand. What can you suggest? Which kind of tools I can make use of? Which kind of monitoring software (paid/unpaid) I have? Thanks in advance.

  Read the article

• Using Y split cables to connect two servers to a single PDU receptacle

  - by sagi

  We have bought a few 30amp 208v PDUs that only have 9 receptacles. The servers we are connecting to those PDUs will not use the full 30amps (at 80%, or actually 40% since we use redundant power) so we need to find a way to connect more than 9 servers to the same 9 receptacles so we'll be not wasting capacity that we pay for. I thought about using a Y split cable like this one: http://www.cablesandkits.com/power-cord-c14-c13-splitter-cable-awg-p-515.html That will let me connect two servers to a single receptacle. Each of the individual receptacles can provide 12 amps of power and individual servers are unlikely to consume more than 3 amps at maximal load so it should provide sufficient power. The question is if there is any other reason why this may be a bad idea and if there is any other solution other than buying PDUs with more receptacles (which I don't want to do because I must use horizontal PDU on these racks and ones with more receptacles consume more U space).

  Read the article

• Problems with DNS propagation 10 days after a change was made

  - by runlevel6

  The engineering team I work with has been in the process of moving equipment from one datacenter to another. Ten days ago we moved one of our name servers authoritative for our client's domains (ns1.faithhiway.com) and updated its IP address with its respective DNS provider (register.com) to point to the new datacenter. All tests done show that this name server is correctly running at its new location and when queried, returning the correct response for any domains it is responsible for. The problem is that well after 72 hours had gone by we were still seeing more DNS activity at its old IP address than at the new. The good news is that we kept a name server responding on the old IP address for the time being so we are not seeing any issues with the domains our nameserver is responsible for but the goal is to retire that as soon as possible. As you can see from WhatsMyDNS.net, a decent amount of propagation has occurred over the last 10 days since we made this change, but still there are some locations reporting our original IP. Considering that the TTL is only 3600 with the name servers responsible for this domain, it does not make any sense to myself or the other engineers working with me that we are having this issue. Now if I run a DNS check using one of the Register.com DNS servers (direct nameservers for faithhiway.com), I get the following (correct) result: # dig @dns01.gpn.register.com ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @dns01.gpn.register.com. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43232 ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 5 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 3601 IN A 206.127.2.71 ;; AUTHORITY SECTION: faithhiway.com. 3600 IN NS dns01.gpn.register.com. faithhiway.com. 3600 IN NS dns02.gpn.register.com. faithhiway.com. 3600 IN NS dns03.gpn.register.com. faithhiway.com. 3600 IN NS dns04.gpn.register.com. faithhiway.com. 3600 IN NS dns05.gpn.register.com. ;; ADDITIONAL SECTION: dns01.gpn.register.com. 3600 IN A 98.124.192.1 dns02.gpn.register.com. 3600 IN A 98.124.197.1 dns03.gpn.register.com. 3600 IN A 98.124.193.1 dns04.gpn.register.com. 3600 IN A 69.64.145.225 dns05.gpn.register.com. 3600 IN A 98.124.196.1 ;; Query time: 50 msec ;; SERVER: 98.124.192.1#53(98.124.192.1) ;; WHEN: Thu Jan 27 15:16:57 2011 ;; MSG SIZE rcvd: 269 Just as a reference, here are the results when the same query is checked against a variety of Public DNS servers: Google: # dig @8.8.8.8 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @8.8.8.8. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12773 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 997 IN A 206.127.2.71 ;; Query time: 29 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Thu Jan 27 15:17:31 2011 ;; MSG SIZE rcvd: 52 Level 3: # dig @4.2.2.1 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @4.2.2.1. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46505 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 2623 IN A 206.127.2.71 ;; Query time: 7 msec ;; SERVER: 4.2.2.1#53(4.2.2.1) ;; WHEN: Thu Jan 27 15:18:35 2011 ;; MSG SIZE rcvd: 52 Verizon: # dig @151.197.0.38 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @151.197.0.38. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32658 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 3601 IN A 206.127.2.71 ;; Query time: 81 msec ;; SERVER: 151.197.0.38#53(151.197.0.38) ;; WHEN: Thu Jan 27 15:19:15 2011 ;; MSG SIZE rcvd: 52 Cisco: # dig @64.102.255.44 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @64.102.255.44. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39689 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 3601 IN A 206.127.2.71 ;; AUTHORITY SECTION: faithhiway.com. 3600 IN NS dns01.gpn.register.com. faithhiway.com. 3600 IN NS dns04.gpn.register.com. faithhiway.com. 3600 IN NS dns05.gpn.register.com. faithhiway.com. 3600 IN NS dns02.gpn.register.com. faithhiway.com. 3600 IN NS dns03.gpn.register.com. ;; Query time: 105 msec ;; SERVER: 64.102.255.44#53(64.102.255.44) ;; WHEN: Thu Jan 27 15:20:05 2011 ;; MSG SIZE rcvd: 165 OpenDNS: # dig @208.67.222.222 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @208.67.222.222. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12328 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 169507 IN A 207.200.19.162 ;; Query time: 6 msec ;; SERVER: 208.67.222.222#53(208.67.222.222) ;; WHEN: Thu Jan 27 15:19:29 2011 ;; MSG SIZE rcvd: 52 SpeakEasy: # dig @66.93.87.2 ns1.faithhiway.com A ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @66.93.87.2. ns1.faithhiway.com A ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9342 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ns1.faithhiway.com. IN A ;; ANSWER SECTION: ns1.faithhiway.com. 169323 IN A 207.200.19.162 ;; Query time: 69 msec ;; SERVER: 66.93.87.2#53(66.93.87.2) ;; WHEN: Thu Jan 27 15:19:51 2011 ;; MSG SIZE rcvd: 52 As you can see above, the majority of queries are returning the correct result. But a few (OpenDNS and SpeakEasy in the examples above) are still showing the old IP address. Considering the length of time that has gone by, it seems obvious to me that either we have made a mistake and not thoroughly handled the DNS changes on our end (likely) or there is a problem with either the DNS provider for this domain (Register) or with some of the DNS servers out in the wild (rather unlikely). Any advice on how I can proceed with this? UPDATE (January 31, 2011): First of all, I apologize for the length of both the original question and this update. I contemplated removing some of the excess from the original post but just in case this problem and its solution are helpful to someone else in the future I'm just going to leave everything as it is. Anyway, I've been doing some more research into this problem, and have discovered the following interesting occurrence. While running a check on the glue records for faithhiway.com always resolve correctly, if I go and check a client domain (where ns1.faithhiway.com is authoritative), I get a strange response. It looks like the root servers are returning nsX.faithhiway.com as their old IP addresses still (under Additional Section). Because we have a server still there responding to DNS queries, the trace finishes and returns the correct IP addresses as the final step (again, under Additional Section). The example below uses one of the domains that we use that uses ns1.faithhiway.com as its authoritative DNS server. # dig +trace +nosearch +all +norecurse ignitemail.com ; <<>> DiG 9.2.4 <<>> +trace +nosearch +all +norecurse ignitemail.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46856 ;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;. IN NS ;; ANSWER SECTION: . 7986 IN NS a.root-servers.net. . 7986 IN NS b.root-servers.net. . 7986 IN NS c.root-servers.net. . 7986 IN NS d.root-servers.net. . 7986 IN NS e.root-servers.net. . 7986 IN NS f.root-servers.net. . 7986 IN NS g.root-servers.net. . 7986 IN NS h.root-servers.net. . 7986 IN NS i.root-servers.net. . 7986 IN NS j.root-servers.net. . 7986 IN NS k.root-servers.net. . 7986 IN NS l.root-servers.net. . 7986 IN NS m.root-servers.net. ;; Query time: 39 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Mon Jan 31 09:22:17 2011 ;; MSG SIZE rcvd: 228 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16325 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14 ;; QUESTION SECTION: ;ignitemail.com. IN A ;; AUTHORITY SECTION: com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. ;; ADDITIONAL SECTION: a.gtld-servers.net. 172800 IN A 192.5.6.30 a.gtld-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 b.gtld-servers.net. 172800 IN A 192.33.14.30 b.gtld-servers.net. 172800 IN AAAA 2001:503:231d::2:30 c.gtld-servers.net. 172800 IN A 192.26.92.30 d.gtld-servers.net. 172800 IN A 192.31.80.30 e.gtld-servers.net. 172800 IN A 192.12.94.30 f.gtld-servers.net. 172800 IN A 192.35.51.30 g.gtld-servers.net. 172800 IN A 192.42.93.30 h.gtld-servers.net. 172800 IN A 192.54.112.30 i.gtld-servers.net. 172800 IN A 192.43.172.30 j.gtld-servers.net. 172800 IN A 192.48.79.30 k.gtld-servers.net. 172800 IN A 192.52.178.30 l.gtld-servers.net. 172800 IN A 192.41.162.30 ;; Query time: 64 msec ;; SERVER: 198.41.0.4#53(a.root-servers.net) ;; WHEN: Mon Jan 31 09:22:17 2011 ;; MSG SIZE rcvd: 504 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12860 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;ignitemail.com. IN A ;; AUTHORITY SECTION: ignitemail.com. 172800 IN NS ns1.faithhiway.com. ignitemail.com. 172800 IN NS ns2.faithhiway.com. ;; ADDITIONAL SECTION: ns1.faithhiway.com. 172800 IN A 207.200.19.162 ns2.faithhiway.com. 172800 IN A 207.200.50.142 ;; Query time: 152 msec ;; SERVER: 192.54.112.30#53(h.gtld-servers.net) ;; WHEN: Mon Jan 31 09:22:17 2011 ;; MSG SIZE rcvd: 111 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43016 ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;ignitemail.com. IN A ;; ANSWER SECTION: ignitemail.com. 3600 IN A 206.127.2.64 ;; AUTHORITY SECTION: ignitemail.com. 3600 IN NS ns1.faithhiway.com. ignitemail.com. 3600 IN NS ns2.faithhiway.com. ;; ADDITIONAL SECTION: ns1.faithhiway.com. 3600 IN A 206.127.2.71 ns2.faithhiway.com. 3600 IN A 206.127.2.72 ;; Query time: 25 msec ;; SERVER: 206.127.2.71#53(ns1.faithhiway.com) ;; WHEN: Mon Jan 31 09:22:18 2011 ;; MSG SIZE rcvd: 127 I really think this is a problem we have somewhere in our setup, but whether it is ignorance of something with DNS on my or my fellow engineer's end or just a dumb mistake we made, I have yet to find it.

  Read the article

• coordinating a script to run on only one of identical load-balanced servers

  - by Amos Shapira

  I have two identically configured CentOS 5 servers (possibly more in the future). I need to run a cron job on any one of them and that it'll run only on one of them. I know about RedHat Cluster Suite (we use it on other servers), but it's a too big a gun to use for this task, plus it doesn't really behave well for less than three nodes. Is there anything light-weight I can use for that? The servers can communicate with each other directly. I suppose I can develope something over ssh or nrpe (two server which are already installed on these servers), but I was wondering whether there is something already available.

  Read the article

• Setting up multiple servers for one domain

  - by Joseph Torraca

  So I am starting up a new website and I was wondering how to set up 5 servers to host the site. I have already purchased 5 Apple XServes, one will be used as a test server and the other 4 will be for the live site. So I have read some website on the internet and they all reference using one server and installing software onto it and have that server do the load balancing. I have also read that you could use a hardware, rack-mounted system and plug the servers into that. The load balancer would then distribute the load. So I have a few questions about each: 1) How do you set up the software version and have the other servers as "slaves" and have one "master" to direct traffic? 2) Which of the two options above are more reliable, and better suited for a startup that doesn't have many users per month, yet(hopefully)? 3) Is there a theoretical max limit of servers that can be connected to a software load balancing system? Note: Obviously this will change from software to software, but in terms of the server being able to handle it? 4) In your own opinion, what are you using for your sites? Have you had any problems setting up that system or operating it once its running? Are there any things you would stay away from if you had to start over? 5) I also purchased a Apple RAID system, so if you are familiar with it, is there any way to connect it to multiple Xserves so they all serve the same data? I'm a little confused on this, so thanks for all your help and being patient with me. Note: Take it easy on me, I am learning this as I go along, so I may have used terms incorrectly or explained things that don't really make sense. Sorry. P.S. If you need me to supply the specs on the servers to determine which system makes the most sense, I can post them for you.

  Read the article

• Splitting Servers into Two Groups

  - by Matt Hanson

  At our organization, we're looking at implementing some sort of informal internal policy for server maintenance. What we're looking at doing is completing maintenance on our entire server pool every two months; each month we'll do half of the servers. What I'm trying to figure out is some way to split the servers into the two groups. Our naming convention isn't much to be desired (but getting better) so by name or number doesn't really work. I can easily take a list of all the servers and split them in two, but with new servers are being added constantly, and old ones retired, that list would be a headache to maintain. I'd like to look at any given server and know if it should have its maintenance done this month or next. For example, it would be nice to look at the serial number. If it started with an even number, then it gets maintenance done on even months and vice-versa. This example won't work though as a little over half of the servers are virtual. Any ideas?

  Read the article

• Slow transfer speed between two servers

  - by Linux Guy

  I have two servers both network cards speed is 10Gbps The inbound bandwidth between two servers is 10Gbps , the outbound bandwidth internet bandwidth is 500Mpbs Both servers using public ip addresses in public and private network Both servers transfer and connection on nginx port , and the server B used for streaming media , like youtube stream videos I check the transfer speed using iperf utility From Server A to Server B # iperf -c 0.0.0.1 -p 8777 ------------------------------------------------------------ Client connecting to 0.0.0.1, TCP port 8777 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 3] local 0.0.0.0 port 38895 connected with 0.0.0.1 port 8777 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.8 sec 528 KBytes 399 Kbits/sec My Current Connections in Server B # netstat -an|grep ":8777"|awk '/tcp/ {print $6}'|sort -nr| uniq -c 2072 TIME_WAIT 28 SYN_RECV 1 LISTEN 189 LAST_ACK 139 FIN_WAIT2 373 FIN_WAIT1 3381 ESTABLISHED 34 CLOSING Server A Network Card Information Settings for eth0: Supported ports: [ TP ] Supported link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 10000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: external Auto-negotiation: on MDI-X: Unknown Supports Wake-on: d Wake-on: d Current message level: 0x00000007 (7) drv probe link Link detected: yes Server B Network Card Information Settings for eth2: Supported ports: [ FIBRE ] Supported link modes: 10000baseT/Full Supported pause frame use: No Supports auto-negotiation: No Advertised link modes: 10000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: No Speed: 10000Mb/s Duplex: Full Port: Direct Attach Copper PHYAD: 0 Transceiver: external Auto-negotiation: off Supports Wake-on: d Wake-on: d Current message level: 0x00000007 (7) drv probe link Link detected: yes The problem is : as you can see from iperf utility, the transfer speed from server A to server B slow when i restart network service the connection will be ok , after 2 minutes , it's getting slow How could i troubleshoot slow speed issue and fix it in server B ? Notice : if there any other commands i should execute in servers for more information, so it might help resolve the problem , let me know in comments

  Read the article

• Loadbalance UDP traffic with session affinity and way to take servers in & out of rotation

  - by William

  What is the best way to go about load balancing UDP traffic among a whole bunch of servers, while keeping session affinity based on the users' IP? I need to also be able to take servers in and out of rotation for new clients, so when they join for the first time, they get put on a server in a list of available servers, and clients already connected would stay connected to their specific server. I have written the software to maintain a list, but I can't seem to find anything that would perform this functionality. If you need the context, this is to facilitate game tournaments for Minecraft: Pocket Edition, which is done with UDP traffic, I cannot change the protocol. And, because tournaments open and close, I need to be able to place players on their proper servers. Performance is also a priority, I have a program to do this but it is very bloated and slow. Thanks for any help! William

  Read the article

• active directory servers synchronization

  - by Mit Naik

  I have 3 AD servers with windows server 2008 R2 at 3 different places, main server is at datacenter and 2 are in our local office which are at 2 different place. I want to synchornize all the 3 server together, were datacenter server should be central server and rest 2 servers should synch with the datacenter server. Please provide us the steps or tutorial to do this. Also we want that once the changes are done in 1 of the AD server the changes are automatically done in all the servers. For example if I change the password of user in our local server it should be updated in our main AD server and other branch server too. Please provide us the steps or tutorial to do this asap. I have one more question I have already created main datacenter AD as domain.local and other domains as xyz.local and abc.local, how can I replicate the additional AD domains with main datacenter DC, also do we require VPN connection, is there any other way to replicate the servers without using VPN connection?

  Read the article

• Firewall issue with multiple SIP PROXY / REGISTRAR servers

  - by MikeBrom

  Hi We have a pair of Internet-facing SIP PROXY/REGISTRAR servers (for resilienced and load-balancing). When a SIP phone registers, it will be handled by one of the REGISTRAR servers (round-robin DNS) - and since this registration is renewed, the firewall port/address translation is maintained. Therefore, when a call is to be sent back to the phone the INVITE message passes successfully through the firewall. However, it is likely that the phone may register with one of the two servers, but the INVITE may come from the other. In this situation, the call fails since there is no translation in place on the firewall. Is there a feature in the SIP protocol to facilitate this? Any other ideas? As our traffic grows, we will no doubt end-up with more than two servers - so the problem will escalate. Thanks, Mike

  Read the article

• How to maintain one file across many production servers (Windows and Linux)

  - by Brien

  My organization wants to centrally manage an Oracle TNSnames file for all of their production servers. When that file changes, they want to be able to push out the changes to all servers that use it with a minimal effort. Approaches that have been considered: Centralized file server (drawback: if the file server or the network connection to the file server goes down, the servers have no access to the critical file) Subversion client on each server (drawback: using a source control tool in production, added complexity) Store an individual copy of the file on each server (drawback: changing the file contents involves making changes on many different servers) Update Can I use DFS to do this?

  Read the article

• Can't get basic web servers working on EC2 RedHat

  - by Yarin

  I'm trying to get some basic Python web servers (Flask, Tornado) turned up on the EC2. On the Amazon-flavored Linux AMI (Amazon Linux AMI 2013.03.1) they work no problem, but the same web servers installed on the RedHat quicklaunch AMI (Red Hat Enterprise Linux 6.4) don't work at all- All I get is connection failure errors when I try to browse to them. Both these servers share the same security group, with the relevant ports (5000, 5010) open, so I'm trying to understand why RedHat would not be not working.

  Read the article

• How to have your DNS servers forward queries for internet names

  - by Xavier Hutchinson

  I have 2 Domain Controllers / DNS servers on Windows 2012, their IPs are 10.0.1.10 and 10.0.1.11 Another server acts as the DHCP server for clients, and sets their primary and secondary DNS to the IP addresses of the previously mentioned domain controllers / DNS servers. However I cannot resolve internet domain names, presumably as they are not hosted on the DNS servers. So my question is what do I have to do on my setup to resolve external domains? Thank you! Xavier.

  Read the article

• Hot swapping for Linux web/database servers

  - by Art

  Is there a way to perform the following under Linux: There are two web servers, main and backup There are two database servers (postgres), main and backup Web Servers are in sync with each other, ie. configuration/content/applications are the same Backup database is continuously synced up with main database. If either of main servers goes down, it's being replaced with backup one on the fly. When main database server goes back up, all the data from backup server is uploaded to it. Essentially, I need the hot swapping working automatically with no or minimal user intervention, if possible. Recovery procedure is preferably automatic but can include some manual steps.

  Read the article

• Time Drift on VM servers, need a reliable solution

  - by zeroasterisk

  We have some windows server 2008 VMware instances on multiple physical servers (hosted) and an application which requires the time to be synced across the server instances. Obviously, VMware has problems with this and we really have never gotten it working any better, we have setup the servers to poll for an NTP update every minute which mitigates the problem (in a fairly crude way). Except that every once in a while, the update will fail (because there's already too much drift) and then windows never does an NTP update afterwards which eventually allows the servers to drift far enough apart that our application breaks, and we notice. We are thinking about changing hosts to Xen servers on approximately the same setup, and I anticipate similar problems. can anyone tell me if Xen has the same time-drift issues VMware does, for guests? can anyone tell me what the best windows server settings are for syncing with an external NTP server to keep things in sync: how frequently do you recommend syncing? (assuming every minute) do you recommend running our own NTP server - even if it has to be on a virtual instance? (assuming not) is there any way to tell windows to sync with the NTP server no matter what the time difference is? any other suggestions for keeping windows servers time in sync? I have become familiar with [ http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1318 ] and it's helped, but it's not been totally effective (see above). thanks much!

  Read the article

• Best way to replicate servers

  - by Matthew

  I currently have two servers both with linux software RAID1 configurations. They use heartbeat and DRBD to create a shared DRBD device that hosts a a exported NFS directory. The servers run Ubuntu Server with a LXDE GUI and some IP These servers are going to be placed on fishing vessels to act has redundant storage for IP cameras. My boss wants me to figure out the most efficient way to create these servers. We might be looking at pushing out several systems a week. Each configuration will be almost identical besides IP addressing. What would be the best method to automate the configuration process? We are trying to cut down on labor costs to set these up. Imaging and Proceeding are both on my mind right now

  Read the article

• Why don't DNS root servers answer?

  - by JustTrying

  If I try to query a root server with dig, I never receive an answer. For example the output for dig @b.root-servers.net www.ubuntu.com is ; << DiG 9.8.1-P1 << @b.root-servers.net www.ubuntu.com ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached But if I query other servers (the one of my ISP, or 8.8.8.8), they answer correctly. Why?

  Read the article

• Putting servers inside a refrigerator? [closed]

  - by Muhammad Jamal Shaikh

  It could be a silly question, but I decided to go for it. I shall be buying 3 servers in the next few weeks to set up a small webfarm at my home. I am told by different people who work in server rooms, that I should keep my servers in an air conditioned room. Which is really expensive, because the temperature here in south asia is between 10 to 50 degrees C. Here comes the funny part: I have an extra fridge in my home, why shouldn't I put the servers inside that fridge? Benefits: I don't have to buy the air conditioner. I don't have to buy the rack mount for the servers. The electricity consumed by the fridge is much much less than AC. Give me your suggestions!

  Read the article

• How DNS server resolves when web servers are geographically distributed

  - by Supratik

  Hi A domain abc.com has two web servers located in two different location one in India and another in Malaysia. If the request are handled by the servers depending on the location from where the request originates then how DNS server resolves for such geographically distributed servers when my client system is configured to a local DNS server in Indian or a DNS server in Malyasia ? Warm Regards Supratik

  Read the article

• putting servers inside a fridge! [closed]

  - by Muhammad Jamal Shaikh

  hi , i think its a silly question , but i decided to go for it. i shall be buying 3 servers in next few weeks for setup a small webfarm at my home. i am told by different people who work in server rooms , that i should keep my servers in a Air Conditioned room. which is really expensive.because temperature in south asia is b/w 10--50(Centigrade). here comes the funny part, i have an extra fridge in my home , why shouldn't i put the servers inside that fridge. here are benefits listed i dont have 2 buy the air Conditioner i dont have to buy the rack mount for the servers the electricity consumed by the fridge in much much lessor as compared to an AC be free to give your suggestions :) thanks Jamal.

  Read the article

• Mesh Networked servers via vpn

  - by microspino

  I got a design idea and I would like to have some advice from SF about It. I have 5 customers with small real-estate databases. I've built for them a desktop app and now they would like to merge their database to share their data. I don't want to centralize everything in one place nor I want to do maintenance for servers. They told me also, that all of them in their offices, have little servers and maintenance guys available. Although everything seems suitable for web application, I had the idea to experiment something new: Any customer small-server wild be connected to the others in a sort of mesh network without a single point of failure and through VPNs. If one of the servers went down the customers could still connect to their databases from one of the other mesh networked servers instead of from the local one that is down. During normal operations all the servers sync the db with the others through VPNs. I can accept a half-day timing window of NON synched data, in other words, since I don't need real time synchronization, the server don't have to always stay in synch. I can migrate my data over to other Non-Sql technologies like CouchDB or Redis or whatever you suggest. As you can see I don't have a lot of constraints and although I could go with a web application I would like to delegate and decentralize support, data-privacy and management, as more as I can to my customers offices. Is that a crazy idea? Do you know If something similar exist? Which technology would you suggest?

  Read the article

• Connecting two servers together - How to?

  - by Chris

  Is it possible to connect two servers running for example Windows Server 2003/2008 together. For example they are seen on the network as one server with the combination of all HDD from each server? Example: \\Server1 - 1 x 1tb hdd \\Server2 - 1 x 1tb hdd I would like users of the network to be able to store their documents on both servers for load balancing. So basically a RAID between the two servers? Any help would be appreciated.

  Read the article

< Previous Page | 2 3 4 5 6 7 8 9 10 11 12 13  | Next Page >