General :: Code For Passive Clustering In NS 2.34?

Apr 4, 2011

How can I get the NS Code for passive clustering in NS 2.34

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General :: HA / LB Clustering With Specific Software Requirements?

Jun 16, 2010

I am looking to build up a HA/LB linux cluster with specific software requirements. For hardware, I have a number of dual xeon PE 2650s and would like to use them as efficiently as possible. These are 32bit systems, I anticipate scaling up to 64bit systems when I have a tested, working solution in place. For distro, I am familiar with CentOs, Gentoo and Ubuntu but unsure as to which would be the best foundation, although leaning towards CentOs. For software, I need to realise all the services provided by xampp (Apache, MySql, PHP, Perl, FTP), plus Red5 flash media server.

My current train of thought is;
6 physical servers; 2 Directors/Heartbeat, 2 Apache, 2 Red5
Gigabit private network for connecting the nodes.
CentOs 5.5 on all nodes.
DRDB across the 2 Apache nodes for Apache, MySql, PHP.
DRDB across the 2 Red5 nodes for Red5.

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General :: Apache Clustering On Virtual Machines?

Feb 5, 2010

I am Working On Citrix Xen Server.I have Installed two Virtual Machines(Centos 5.3).Now Apache is Configured and its running on the First VM.Can I Set up a Apache Clustering On those VM?.My Aim is "If Apache On the First VM Down,then Apache on Second VM Should Automatically Start".Is there Any Tutorial to Setup Apache Clustering On Virtual machines.

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General :: Write Shell Script For Zabbix Application Level Clustering

Aug 16, 2010

We have zabbix Network monitoring tool installed on two servers 172.17.11.6 ( Master ) and 172.17.11.3 ( Slave ) RHEL 5.4 Servers with 172.17.11.4 being Virtual Ipaddress.We are trying to implement High Availability with Red Hat Cluster Suite.OS level Clustering has been implemented with following cluster configuraiton.

But we need to implement Application level clustering for Zabbix_server process which inturn depends on httpd and mysqld deamons to be running.So I have to check the health of mysqld and httpd with a shell script along with the health of zabbix_server process.Any good tutorials for this ? Any guidlines that I have to follow ?Here I may need to take care of following things when any one of the process goes down

1. Shifhting Virtual IP
2. Shifting /dev/sdb1 ( Shared drive to slave )
3. stopping other services on master
4. starting all the services on slave

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Networking :: Making NIC Completely Passive?

Jun 29, 2010

I want to make an Ubuntu box a completely passive sniffer. As such, I want the NIC to never send anything or replying to anyone on the network, while still being able to capture the network traffic using pcap.

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Software :: Configure Cygwin On Passive Mode?

Dec 26, 2008

I am using Cygwin with RHEL 4. Can anyone guide to configure it on passive mode.

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OpenSUSE :: Where Is Repositories For Ha-clustering

Aug 5, 2010

Empty: Index of /repositories/server:/ha-clustering:

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Server :: Clustering With No PXE Boot?

Apr 17, 2011

I have some chassis with this motherboard [URL] that don't have PXE boot. What is the best way to cluster them?

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Debian Configuration :: Setup Passive Ports And Masqurade?

Aug 27, 2010

my proftpd setup will not do passive ports, reading the how-to on this page [URL] It gives the instructions on how to set up passive ports and masqurade but the example is using ipchains so before I start typing these commands in I would like to know if I need to change anything in the commands other then the ipchains command.

[Code].....

will this work on debian 5.05 also how do I find out if I use ip filters.

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Networking :: Active FTP Using Raw FTP Commands / Turn Off Passive Mode Using It?

Apr 1, 2009

Can anybody have an idea of an ftp client code using raw ftp commands.

OR
Can anybody tell me how to turn off passive mode using raw ftp commands.
PASV is the command which turns on passive mode but there is no such alternative of active mode.
I have already tried using pasv_enable=NO in vsftpd.conf but that is not working.

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Networking :: Pure-ftpd Passive Transfers Not Working?

Jun 4, 2010

I have a dns-323 linux device that's running pure-ftpd with SSL/TLS authentication. Pure-ftpd is sitting behind a linksys router with IP 192.168.1.51. Pure-ftpd is configured for port 8021 and passive port range 55562-55663. The linksys router is configure to forward port 8021 and the passive port range to 192.168.1.51.

From outside my network I can connect to the ftp server using the WAN address of the router. I'm using filezilla 2.2.32 as my client and I choose FTP w/ explicit TLS (no other option will connect). The client will authenticate successfully with pure-ftpd but once it sets up the passive data connection and tries to do a LIST of the root directory, there's a timeout. I'm assuming this is because the passive data connection is not working. In pure-ftpd, I tried changing the passive address that it reports, to be the WAN address of the router, but it did not make a difference. I included the log from filezilla below.

[Code]...

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Ubuntu :: Build An HTPC Using Clustering?

Jun 16, 2011

I'm trying to get an HTPC going, but I don't have any money to purchase a new computer. I have 2 desktops in my possession that I am trying to use: 1 is a 2.4 GHz with a 128 MB Radeon 9800 PRO video card (I think) and 1.5 GB RAM (the system is about 8 years old, but I built it top of the line for back then). The second system is a 3.2 GHz dual core with on board video and 2 GB RAM.The problem is, neither system will run 1080p video's without dropping hundreds of packets producing very choppy audio/video. I was wondering if it is possible to cluster these two systems together to harness both their processing power to run 1080p video? I would just jump in and attempt it, but as I have been reading, it looks like processes aren't actually shared across PC's, but auto determined which PC it will run on based on load, which is an issue since neither can cleanly run the 1080p video.

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Networking :: Clustering RHEL 5.2 Server?

Mar 2, 2010

My current project environment setup is having a single server, running on RHEL 5.2, that is constantly receiving incoming data (video and text) over a periodic interval e.g. every 30 minutes. Initial in-house testing projected the server will be generally busy, so we decided to incorporate a second server for load balancing purposes. So now, server A and B will need to be clustered. Once that is done, incoming data will balance out between the two server (or at least that is what I will like to achieve. Note, I'm aware that at the switch side, I'll need to do some additional configuration and that part is covered).

I've been reading on Red Hat Cluster Suite and the Linux Virtual Server (LVS) seems the way to go. However, I noted that the LVS solution require at least a two-tier solution, and that would incur 3 additional servers instead of just 1. So here's my questions:- I looked around and probably know the answer, but I'm gonna ask anyway. Is there a one-tier solution for LVS i.e. have anyone tried or whether it's even feasible. From my reading, it don't seem so but just want another opinion. Is there any other way for me to do the clustering (for load-balancing) without LVS?

Sidenote: I'm currently looking at Ultra Monkey and will be trying out in a while. However, the project I'm doing would be rolled out to live site eventually, and my customer is kind of....particular. I'm just wondering if there's a software/application (that need to be purchased) and comes with support.

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Server :: Figure Out Ho To Setup EC2 Clustering?

Mar 16, 2010

I am trying to figure out ho to setup EC2 clustering. I am seeing heartbeat as an option. I need something that will monitor the state of a daemon, and not if a daemon is running. For example, say I want httpd to be high availability. Does heartbeat monitor if httpd is not in a hung state, or does it simply do a ps -e |grep httpd? So my question is, how does heartbeat work?

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Fedora Networking :: IPtables Passive Ftp Rules Donot Work?

Aug 15, 2011

I'm trying to build a firewall with IPTables: INTERNET <--------> (eth0) FIREWALL (eth1) <------------->FTP_srvI set all rules DROP by default.My rules for forwarding packet to FTP server:

#iptables -t nat -A PREROUTING -i eth1 -d $FIREWALL_EX_ADDR -p tcp --dport 21 -j DNAT --to-destination $FTP_ADDR:21
#iptables -A FORWARD -i eth0 -o eth1 -p tcp --dport 21 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT

[code]....

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Hardware :: Get A 2nd Display For A PCMIG 1.0 Passive Backplane With An Advantech 6010 CPU?

May 2, 2011

Need to get a 2nd display for a PCMIG 1.0 passive backplane with an Advantech 6010 CPU [onboard video works fine], but NO PCI card will come up as the 2nd display! Tried 11 cards and most leave the cursor at the top corner when doing xorg-configure, but no that's all.

Has anyone gotten a 2nd display to work on a passive backplane system? Tried some newer cards, but they don't even allow the system to POST - perhaps because they are PCI 3.0 and the backplane is PCI 2.0 or 2.1?

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Server :: Drbd Active-passive Cluster Change Primary One?

May 21, 2011

i have a two node drbd cluster, while drbd1 is primary and drbd2 is slave i should make drbd1 slave and unmount drbd partition and make make drbd2 primary and mount drbd partition to see content on drbd2is it any way to automate it so as drbd1 goes down, drbd1 make itself primary and mount the partition?

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Server :: Run A Ftp On Default Ports With Port 10100-10199 As Passive?

Feb 19, 2010

tring to run an ftp server on default ports with port 10100-10199 as passive. Using vsftp. But the ports refuse to open what the heck am I doing wrong? see screen shot. oh using karmac, now.

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Server :: Nagios Passive Or Remote-host-side Alert?

Jan 6, 2010

Is this possible that a process running on a remote-host only inform nagios when some thing is wrong. Rather then nagios-monitoring-server checking through NRPE every so often. Reason is I want to add too many alerts in the application. And I don't want a whole list of ok messages.

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Ubuntu Servers :: Configure Clustering For 2 Nodes?

Mar 11, 2010

I want to connect two systems in clustering concept. am new for clustering configuration. I have installed ubuntu 9.10 server edition in two system. what do to the next step to configure clustering in ubuntu 9.10 server edition.

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Server :: Good Links To Know More About OS Clustering In System?

Dec 1, 2010

Share good links to know more about OS clustering in Linux.

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Server :: Red Hat 5.4 Kickstart / Clustering And KVM Installation Failing

Mar 14, 2011

I added the "@clustering" and "@kvm" keywords to my ks.cfg file but during installation, an error about not being able to find either of these packages popped up and it wasn't installed.

I do see the Cluster and VT directories in my redhat_es5.4 directory along with the Server directory. The rest of the files install just fine.

In doing some net and forum searching, I find a reference to a base.repo file that lists the directories but I'm not sure if it's related to creating a yum repository or if not, should it have been created in the redhat_es5.4 directory.

While I've built kickstarts for several years and am comfortable with the file, this is the first time I'm working with rpms outside the main Server path.

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Software :: How To Install The Clustering Application On Server

May 12, 2010

Having issues installing Clustering Software on server: rhel-x86_64-as-4-cluster I am running the following kernel:

The server is up to date with updates, but I am having trouble installing the Clustering software and don�t know what to do now�
# uname -r
2.6.9-89.0.25.ELsmp
#

[code]....

How can I get this installed ?

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Server :: Clustering Mail Servers (CentOS/Amazon EC2)?

Feb 23, 2011

I'm looking to set up a clustered mail server, I kind-of know how I'm going to do it but wanted to check if there was a better way. So we have 3 mail servers, running as EC2 instances on Amazon AWS. We were going to achieve clustering by giving all three a shared EBS storage device to store the mail. The mail would be received by any of the three servers (Via postfix) and could be retrieved from any of the three servers (via dovecot). For receiving mail (SMTP), the domains would have 3 MX records pointing to each of the servers but for sending and retrieving mail (SMTP and POP3/IMAP) the three servers would have one DNS A record with 3 IPs associated (I know when using this method for web-servers, the load gets distributed among the IPs under that record but I'm not sure if this will work for SMTP/POP3/IMAP).

What we want is to have 3 servers that share the load equaly but are completely redundant for all services (POP3, IMAP and SMTP). We also need to be able to scale upwards so if we need to add more servers we can do easily. Also the servers must be perfectly synchronized at all times.

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Server :: Looking For An Open Source Active Clustering Product?

Jul 12, 2010

I am looking for an open source active clustering product can you please advise me about the best clustering softwares on Linux?

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OpenSUSE Network :: Uploading Files To Remote FTP Server Using Passive Mode With Enabled SuSeFirewall2

Feb 28, 2010

I've got problems uploading files to a remote FTP server using passive mode with enabled SuSeFirewall2 (Using 11.2)

I've disabled Firewall and everything went ok. Why firewall disables or terminates OUTGOING connections to a remote FTP?

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Programming :: Selenium Java Code Into Equivalent Php Code?

Mar 30, 2011

I need to rewrite the selenium java code into its equivalent php code.

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CentOS 5 Server :: Web Server Clustering With Centos5.2

Mar 22, 2009

To clustering my web server so that it becomes Highly available. Its currently running php, apache and mysql with no redundancy in place. I want to be clustered so that if one node goes down then the second one will automatically take over. I have done that with HA in RHEL but I want to use centos clustering solution for this. Also how willl they share the web contents and mysql database among two nodes I have no idea. I have managed a iscsi target to store contents but it doesn't work as expected.

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Security :: Reset Facebook Password,facebook Send A Code To E-mail,this Code Can Be Sniffed By Sniff Software?

Jul 18, 2010

for reset Facebook password,facebook send a code to e-mail,this code can be sniffed by sniff software?

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General :: How To Edit ECC Code

Jun 21, 2010

can I change the ECC code for a block of a file stored on a flash drive by any means ? of a file stored on a HDD (though I don't think there would be a difference between the two)Maybe , through some hardware interrupts or anything like that?Also if possible I need the solution to be in C/C++.

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