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Try this: http://www.markround.com/archives/61-Xenserver-snapshot-and-template-based-backup-script.html/ The only dislike I had about it is it backs up all running VM's. I'm in the process of looking for a tool/script that will allow me to backup the VM's running on a host so then I can schedule backups for VM's based on the host they reside on.


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You did not define any notification objects, referenced to host/service objects and linked to users and notification commands. The sample configuration in conf.d/notifications.conf already provide an insight, although you should consider writing your own nitification apply rules for hosts and services based on your motification type - be it mail, sms, etc ...


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It doesn't matter which node established the connection - either from the master to the client, vice versa or both (first one wins). That way you may connect clients in your DMZ directly to your master for example. I wouldn't go the nsca way, that's considered insecure and a performance problem introduction you won't see with Icinga 2 clients and clusters. ...


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Using vmstat to build this sort of thing is possible, but you will get a lot more results for our effort by configuring something like munin or cacti. All of the stats you are getting from vmstat plus iostat plus more will get turned into pretty graphs. Munin and other similar tools use RRD to avoid having data fill up your drive.


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Here's a list of what you can read into: you could ssh in and use uname -o use you can use ping to sort determine OS, nice link for some OS's here. if your machines are stock then just use nmap, it is the definitive project for this. or you can read into IP Stack Fingerprinting and have a machine intercept packets.


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You can use pof - a passive operating system detection. P0f is a tool that utilizes an array of sophisticated, purely passive traffic fingerprinting mechanisms to identify the players behind any incidental TCP/IP communications (often as little as a single normal SYN) without interfering in any way. Version 3 is a complete rewrite of the original codebase, ...


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I would also like to propose "iftop", this can be usefull to get existing connections from your machine: It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts


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I know that you are looking for GUI, but there is no GUI with magic button "SHOW ME WHO HACKED ME". This isn't TV, this is system administration. You need to use proper tools. For starters, you can block all outgoing communication its destination port is 80 via iptables: iptables -t filter -A OUTPUT -p tcp --dport 80 -j DROP This will drop ALL ...


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I wrote a nagios plugin that you may be able to adapt to Zabbix. I wrote it when we had a bunch of Linux servers going read-only because of random disk errors. It helped us catch problems early and the code is there to test-write a file but we disabled that so the check could run as non-root.


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/var/log/syslog should contain some information related to device disconnections; even without building stacks like ELK (ElasticSearch, Logstash, Kibana) to analyze the log, you should be able to catch such events with tools like sec.


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I'm going to assume that you know what you're talking about when you say that it's a single DNS server. I'm skeptical because you have not shared your methodology for determining this, but my answer will take it as a given that this information is accurate. Normally you would perform a query, look at the observed TTL, and query again once that TTL expires. ...


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You can use dig www.example.com in bash on most Linux systems to perform a DNS lookup, the output can be customized based on the amount of detail you would like. You can save known good output to a file then compare results using diff. Logging can be performed by extracting the desired info from dig output, then it you can save it in whatever format you ...


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You basically have the key area's covered. I would typically monitor the following on a web server: Apache processes, Web site HTTP responses, SQL Database status, maybe transaction count, wait times etc..., SQL Replication status, Backup process status, RAM utlisation, Disk Space free %, CPU Load If you can, monitoring log files for known error ...


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You may use the following SQL script to compare the traffic. set @threshold = 50; /*threshold for comparing the traffic*/ set @limit = 30 /*how many days to consider while generating avg value*/ /*calculate the time range, comparison is done for the last hour*/ set @end_time = current_timestamp(); set @end_time = timestamp(date(@end_time), ...


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You have to use the "program" feature of Monit. If your monitrc file includes include /etc/monit.d/*.cfg, then in your /etc/monit.d, create a .cfg file with the content (add the appropriate include statement in your monitrc file if you don't include all *.cfg files in /etc/monit.d) check program mail-queue path "/usr/local/sbin/check_postfix_queue" if ...


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Though the question is already answered and accepted, I think its incomplete. There are a few points missing from the accepted answer. You need to run top in batch mode using -b if you are running it as a child process and want to grab any meaningful output. If not it will have a mix of control characters as a result of running in interactive mode. Specify ...


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With Bosun default's time series databases, OpenTSDB, any tags you don't supply will be aggregated. So I think why you are getting values you don't expect because you didn't specify any value for the mount tag: vs the following, where * is provided as the value to the mount tag:


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One possible approach would be to use hysteresis in trigger expressions, see https://www.zabbix.com/documentation/2.4/manual/config/triggers/expression#hysteresis .


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Script away in your favourite monitoring toolkit! You need: a scheduled job that sends a SMTP message (for instance every minute) and then monitor the recipient mailbox via POP or IMAP (every X minutes) to see if it has received any new messages in the last X minutes (and delete those to prevent the mailbox from filling up). No (new) messages ...


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i found how to do it :) just use: http://yourserverip/sms?number=your_number&text=your_text_massage and post it with HTML. don't forget you have a user password popup, i was manage to do it with the following powershell script: $msg = "Hey - sending this from powershell :)" $number = "+XXXXXXXXXXXX" $url = ...


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You won't be able to get much in the way of performance or health information about an MSA storage array over SNMP... Use email alerts and just rely on those. OpenNMS will be useless here.


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try removing the file "/omd/SITE/var/check_mk/notify/backlog.mk" and create an empty one. Then restart the core. This fixed the issue for me.



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