I am using Debian as mail server and proxy server. I need to configure one backup server for the same. Mainly I need to replicate/sync the files on both machines. So I can avoid the failure time.
View 3 RepliesHow to directory replication between 2 or more servers?
View 1 Replies View RelatedI have two computers (one tower, one laptop). On both the computers, I have apache & PHP & mysql running, so i can program/script anywhere I like. With a simple sync'ing program, the PHP scripts are synced between the PC's, thought the databases arent. Therefor I'm looking for a method to sync (replicate) the databases between the PC's. thought after setting up some configuration, i'm stuck... now with how to, but what to
Option 1) Multi-master replication between the PC and the laptop. With this setup, the database can ONLY sync once both the devices are turned on. Also it can only sync if they are turned on on my LAN, since they do not have an external static IP address. if I turn on both PC's on my LAN, with static IP's (from the DHCP server), this option will work. Thought, I basically never have both pc's turned on in my own home... cuz i can use only one at the time anyway.So I was thinking of another setup
Option 2) Multi-master replication with: online Server, PC and Laptop. The server basically contains the most up to date database. for example, the laptop updates the server and the server can update the PC later, once the PC is turned on. Also the other way around, the PC can update the server which can than update the Laptop.
There is, if i'm correct, only one problem: the only multi master replications setups I found, use a circulair setup... (1 updates 2, 2 updates 3, 3 updates 1) What I need is to have the PC update the server, but ALSO have the server update the PC (same for the laptop)
than there is another (little) problem: the PC and laptop cannot be reached from behind the modem, nor do they have a static IP. My question: Is it possible to sync the server with the laptop (that has no static IP), the laptop with the server (that has a static IP), and the same for the PC
PC <====> Server <====> Laptop
I have successfully installed Openldap and am able to authenticate to it, but I can not get the replication server operating correctly. I have followed all of the steps in doing so from this guide, [URL], but there are a few things i don't understand. when creating the consumer_sync.ldif file on the consumer server it says to replace ldap01.example.com to your server's hostname.
would this be the provider or consumer? My porvider is ldap@tech.local and my consumer is ldap-backup@tech.local.... so what one are they refurring to with the ldap01? And is there a way to push, or sync the two server manually? How do I know if they are backing up properly? How do I test?
I have been scripting Inotify to work as file replication.It works very well for casual use when editing or uploading files. But I have to make sure it stands up against a "tar bomb" when we install a new package. EG: tar -xzf really_big_php_project.tar.gz
Code:
#!/bin/sh
# get the current path
[code]....
i would like to know how to setup Samba file replication between two Opensuse 10.3 servers,
View 7 Replies View RelatedI am IT Manager. Currently I am responsible for a mostly IBM shop, running a mix of AIX, OS/400. VMware, and Windows.
My P-series running AIX and Oracle and my AS/400 both back up to tape drives daily.
But my VMware system is not being backed up, the virtual machines are, but my tape drive just broke down.
I just ordered a server grade machine with an i5 CPU, running 3 2TB SATA drives in RAID5, this is going to be my new backup server.
I am hoping I can put Linux on it, and some sort of open source file replications, real time backup software that will back up my Windows servers, and my Windows desktops in real time.... any sort of animal exist?
this idea to me right now seems stupid and impractical so I'm also looking for solutions outside of this one. I'm creating a set of highly available servers. They currently utilize pacemaker to manage a shared IP address, apache management, mysql management and also drbd handling. They currently replicate, properly failover and run fine. However, this is a shared web hosting setup and everytime a new user is added to the system a username and password is created and the httpd.conf file is updated for their site. I need a way to replicate those changes to the other server. For httpd.conf I'm pretty sure I can just stick it on the apache drbd resource and create a symbolic link. However, for the passwd and shadow files that is not a realistic solution.
View 1 Replies View RelatedI'm running RHEL 5.5 on two workstation for test DRBD and I get something that sound strange ...[URL] Quote:Protocol C. Synchronous replication protocol. Local write operations on the primary node are considered completed only after both the local and the remote disk write have been confirmed. As a result, loss of a single node is guaranteed not to lead to any data loss. Data loss is, of course, inevitable even with this replication protocol if both nodes (or their storage subsystems) are irreversibly destroyed at the same time. By far, the most commonly used replication protocol in DRBD setups is protocol C.
View 15 Replies View RelatedFor my router I need to change Ubuntu server from DHCP to static IP. So to do this I entered: Code: sudo vi /etc/network/interfaces ...and pushed the wrong buttons and exited the session suddenly by mistake. After learning how to use the vi editor I went back but I got a notice that the the last session didn't close properly and that a "swap" file had been created. Anyway, I entered my static IP info, saved the file, and attempted to restart with:
Code: sudo /etc/init.d/networking restart Restart failed and I got a notice that I should delete the /etc/network/interfaces.swp file so I did. Tried to restart again and, didn't get the .swp file conflict message this time, but failed again - this time I got the following message:
[Code]....
I have a fedora 8 server and I just wanted to install fedora directory server I got it install and running, but I'm unable to check the replication and also it seems that I has no database when I user fedora-console-idm.[URL].. Also the same thing happens at the web tool. Any ideas? I think there is no db set, but I have no idea how to do this on fedora-ds. I'm new to it.
View 1 Replies View Relatedi do wish to read study learn from linux world. sites to refer always for command, practice,tutorials etc.say like replication data os level from 1 pc to other pc,without using any outside linux software, only os level, linux to linux, linux to windows/macchannel bonding, using 2 network ethernet card, double the speed of network card and failover netowkr card alsosyncronize data 1pc to 2pc
View 1 Replies View RelatedIf I have 2 MySQL server and I want to replicate their database to only 1 server, is it possible? I cannot afford to have master-to-master only because I still need to replicate one more machine but I do not have anymore more machine for replication so I'm thinking if these 2 MySQL server can be replicate to only 1 machine. If this is not possible, I guess I've no choice but to have two mysql daemon on that machine
View 5 Replies View RelatedI have been using OpenLDAP 2.4 with OpenSuse 11 without any issues but I now want to configure replication and can't see how it's done . The OpenLDAP 2.4 admin guide refers to the slapd.conf configuration file but this is not used by YaST.
View 4 Replies View RelatedI'm thinking of producing a website for a project at uni which would resemble the brainstorm website [URL]. I plan to write it in PHP with a mysql database. How I could start to plan such a project, suggest any PHP frameworks which may make the job easier, any code already available to start me off etc??
View 1 Replies View Relatedi had configured a MySQl Replication Server with 2 DB Servers.Now we are planning to implement a failover Scenario.If Master fails The slave should act as a Master and we have a addition server.It will be going to act as slve.i had mentioned the points below..
Replication
(Master Server)----->----(Slave Server)-----------(Additional Server)
DBS 1 DBS 2 DBS 3
1.Replication is made between Master (DBS 1) and Slave (DBS 2) (successfully done)
2.If Master (DBS 1) failed Slave (DBS 2) should act as a Master and Additional Server (DBS 3) needs to be Slave
3.Whenever Orginal Master (DBS 1) became online the current Master ie ..Slave (DBS 2) should go back to Slave position and all lost data will be replicated to Master DBS 1.
I configured a master DNS server 192.168.2.10 working OK. After that I configure a DNS Slave Server (92.168.2.11)the initial replication worked fine. This is test environment for my certification. I see how the zones from my master are transferred
zones in Master
training.com.db
transferred zone to my slave when I started named service
sec.training.com.db
That's Ok but I added some IPs to resolve to my master zone
webserver IN A 192.168.2.30
fileserver IN A 192.168.2.31
I restart/reload named on master and after that I go to slave and restart/reload but zones wuth the new values are not replicated. How long does it take for slave to take the changes from master? how is the procedure manual or automatic? I see If I go to slave and delete sec.training.com and restart named the zone with the changes is transferred but that is very manual... I am including my DNS Configuration so you can take a look.
Might this is silly question but I am not much familiar to database.I am doing master slave Mysql replication for load balancing. On master server different database has different user privileges. I create backup using mysqldump command and restore on slave server instead of using load data from master; command.When i replicate database from master to slave will i require to set user privileges same as master ?One more question: How to lock all database in mysql?
View 2 Replies View RelatedI want to copy a file to all RHQ-Agents through out RHQ-Console.
View 1 Replies View RelatedI had Configured a MySQL Master-Slave replication.It seems that the binary logs steals so much space of My storage.
i.)My Master
show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000144 | 475823 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
ii.)My Slave.
mysql> SHOW SLAVE STATUSG;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.277.55.141
[code]....
If i remove all binary files up tp mysql-bin.000144 using "PURGE",will it affect my existing database/any data loss.
I am looking into setting up replication in a production environment but currently this is on two test machines. I am following the documentation at [URL] but I am unable to get past "16.1.1.10 Setting the Master Configuration on the Slave". When I do the CHANGE MASTER TO I am getting a syntax error for some reason. What am I doing wrong? These servers run "CentOS release 5.5 (Final)" and "MySQL 5.0.77-log Source distribution" installed via yum. The only changes from default are that I created a single database on the master before doing the table lock and dump, then everything else has been done exactly to what the documentation states, but is still failing.
The option skip-networking is not in the config file on either server and neither one runs SELinux or any firewall.
mysql> CHANGE MASTER TO
-> MASTER_HOST='192.168.1.220'
-> MASTER_USER='repl'
-> MASTER_PASSWORD='removed'
[Code]....
My MySQL replication slave failed,while reading a large size table from master.Thhe information from error.logError 'Unknown table engine 'InnoDB'' on query. Default database: 'test'. Query: I am sure that table is a Big size table..
View 11 Replies View RelatedI'm setting up a Master and Slave OpenLDAP (ver. 2.4.25) use Replication method following {URL]. When I used slapdcat (slapdcat -l master_dump.ldif), I got a message:
root@ldap:/usr/local/openldap/sbin# ./slapcat -l master_dump.ldif
/usr/local/openldap/etc/openldap/slapd.conf: line 89: <replogfile> keyword is obsolete (ignored)
/usr/local/openldap/etc/openldap/slapd.conf: line 91: <replica> keyword is obsolete (ignored)
bdb_db_open: warning - no DB_CONFIG file found in directory /usr/local/openldap/var/openldap-data: (2).
Expect poor performance for suffix "dc=abc,dc=com".
bdb_monitor_db_open: monitoring disabled; configure monitor database to enable
My Master slapd.conf is:
# Require 112-bit (3DES or better) encryption for updates
# Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64
# Sample access control policy:
# Root DSE: allow anyone to read it
# Subschema (sub)entry DSE: allow anyone to read it
# Other DSEs:
# Allow self write access
# Allow authenticated users read access
# Allow anonymous users to authenticate
# Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
# by self write
# by users read
# by anonymous auth
# if no access controls are present, the default policy allows anyone and everyone to read anything but restricts updates to rootdn. (e.g., "access to * by * read") .....
My Slave slapd.conf is similar configuration to the Master Server...
I started over combining the first parts of this guide: [URL]..ubuntu8.04 (Only the first few parts in terms of configuration and naming). Then I used this guide: [URL]..Surprisingly enough all steps worked.
1. Now I need to set up LAMP servers with MySQL master/slave replication and Apache rsync.
2. Next i need to add BIND to both my Load Balancers with master/slave backup and replication...
Are there any guides to look at to follow on these? Can tou point me to the right direction for BIND with replication.
I'm planning to add 1tb sata disk to my lovely file-server under ubuntu 10.10,what i want is use this disk as additional storage for network user,indows and ubuntu?I mean when my ubuntu server down (worse case) I can easily take out the disk from ubuntu machine and plug in on windows machine
View 2 Replies View RelatedI am using python as a cgi for a simple game that i'm planning to run on a website. It requires the user to enter his name and age. This is saved in a file newly created in his/her name. However, I'm getting this error The above is a description of an error in a Python program, formatted
63 for a Web browser because the 'cgitb' module was enabled. In case you
64 are not reading this in a Web browser, here is the original traceback:
65
66 Traceback (most recent call last):
67 File "/var/www/webprog.cgi", line 51, in <module>
68 main()
69 File "/var/www/webprog.cgi", line 44, in main
[Code]...
I have asked this over on Launchpad and have found bugs filed on the eclipse bug tracker but it seems to be going nowhere so I guess ill ask here.
I am using Eclipse for some development work and having saved a file, defocus the eclipse window (to test changes in a browser) when I refocus the eclipse window I get the following error...
The file 'path omyfile' has been changed on the file system.Do you want to replace the editor contents with these changes?
I have searched and searched and this seems to be a CIFS/SAMBA problem. I even found one solution suggesting that changing his mounts from cifs to smbfs fixed his problem however that would appear not to be an option for me since using smbfs in the fstab causes cifs mounts. This problem would seem to occur in Bluefish as well as some other IDE's so it is not an Eclipse issue.
---------- LINKS TO RELATED ----------
Launchpad Question
Eclipse Bug
--------------------------------------
I'm researching about symbolic links been used with samba / CIFS:I'd like that the user that uses a MS-Windows OS could see my shared folder on CentOS 5 and the symbolic links that are inside this folder. Well, it works but, the user will see that the size of the file is bigger than the real file. Apparently, CIFS gets the size of the symbolic link (aproxim.32K) and add it to the size of the file.Example 1: 100KB file, used with shared folder, MS-Windows's user will see 100KBExample 2: 100KB file, used with symbolic link inside a shared folder, MS-Windows's user will see 132KB. (Sym link + size of file)Is there a way to allow the user only see the size of the file, and not the file + symbolic links ?
View 1 Replies View Relatedmy squid show like this when i try create swap directory
[Code]....
I'm trying to add a file in svn and the following error occurs:
Code: