Linux commands, shell scripts, and their applications

httpd: unrecognized service

May 21, 2014 eduguru 1 Comment but I'm not sure about this. How can I solve this? Maybe with apt-get install httpd?, I've installed the Apache web server on Kali Linux and I'm able to start/stop it with: /usr/usr/local/apache2/bin/apachectl restart[start/stop] But if I try to launch it with service command service h, service httpd restart not working, service httpd restart unrecognised service

I’ve installed the Apache web server on Kali Linux and I’m able to start/stop it with: /usr/usr/local/apache2/bin/apachectl restart[start/stop] But if

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linux memoery space command

May 13, 2014April 9, 2016 eduguru 0 Comments # df -h will show you where your free space (if any) is, and only 25GB free on your /home partition. So, du -sh /root), if you don't have additional drive space, linux memoery space command, on your mounted partitions. # du -sh /* will show you how much drive space each of your top-level directories are consuming, which might help identify files that don't need to be on the root partition # fdisk -l (that's a lower-case L). This will show us what drive partitions you have on the system (and whether you've got a, while you may be able to identify files to move from the / partition over to the /home partition, you can dig a level deeper with: # du -sh /DIRECTORYNAME (e.g., you may not be able to grow the / partition... Once you've identified what directory(ies) have the most contained in them

# df -h will show you where your free space (if any) is, on your mounted partitions. # du -sh

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Command for determining my public IP on linux PC

April 28, 2014 eduguru 0 Comments Command for determining my public IP on linux PC, Finding external IP using external services The easiest way is to use an external service via a commandline browser or download tool. Since wget is available by default in Ubuntu, use- wget -qO- http://ipecho.net/plain ; echo, we can use that. To find your ip

Finding external IP using external services The easiest way is to use an external service via a commandline browser or

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How can I download an entire website?

April 15, 2014 eduguru 1 Comment convert the links in document for local viewing. -P ./LOCAL-DIR : save all the files and directories to the specified directory., How can I download an entire website?, wget --mirror -p --convert-links -P ./LOCAL-DIR WEBSITE-URL –mirror : turn on options suitable for mirroring. -p : download all files that are necessary to properly display a given HTML page. –convert

wget –mirror -p –convert-links -P ./LOCAL-DIR WEBSITE-URL –mirror : turn on options suitable for mirroring. -p : download all files that are

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Linux IP Commands

April 15, 2014 eduguru 0 Comments Disable network card: ifconfig eth0 down, Display Current Config for all NIC’s: ifconfig, Display Current Config for all NIC’s: ifconfig Display Current Config for eth0: ifconfig eth0 Assign IP: ifconfig eth0 192.168.1.2 Ping: ping -c 3 192.168.1.1 Assign multiple IP’s: ifconfig eth0:0 192, Display Current Config for eth0: ifconfig eth0, Linux IP Commands, Reverse Lookup: host IP, Trace Route: traceroute www.whatismyip.com

Display Current Config for all NIC’s: ifconfig Display Current Config for eth0: ifconfig eth0 Assign IP: ifconfig eth0 192.168.1.2 Ping:

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Linux Gateway / Router IP Address

March 28, 2014 eduguru 1 Comment How Do I Find Out My Linux Gateway / Router IP Address? need to use route command. This command can manipulates the kernel’s IP routing tables. It can be also use to print gateway / router IP address., Linux Gateway / Router IP Address

How Do I Find Out My Linux Gateway / Router IP Address? need to use route command. This command can

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cgi-bin folder in a subdomain

March 1, 2014 eduguru 1 Comment cgi-bin folder in a subdomain, Should I delete the cgi-bin folder in a subdomain A cgi-bin folder was automatically created in the directory for clothing.mysite.com. Do I need it? I'm only using the subdomain to install wordpress o

Should I delete the cgi-bin folder in a subdomain A cgi-bin folder was automatically created in the directory for clothing.mysite.com.

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Clear Memory Cache on Linux centos

February 17, 2014April 30, 2016 eduguru 0 Comments By default, Clear Memory Cache on linux, Clear Memory Cache on Linux centos, dentries and inodes in cache memory # sync; echo 3 > /proc/sys/vm/drop_caches 2. To free dentries and inodes use following command # sync; echo 2 > /proc/sys/vm/drop_caches 3. To free pagecache , every Linux OS has an efficient memory management system used to clear the buffer cache periodically. You can manually free up the memory cache with the following simple command: linux:~$ sudo sh -c ", Flush Memory Cache on Linux Server, if you want to force the Linux OS to do clearing memory cache on a particular interval, just add the command to cron job. There are three options available to flush cache of linux memeory. Use one of below as per your requirements. More Options: 1. To free pagecache, linux cache memory

By default, every Linux OS has an efficient memory management system used to clear the buffer cache periodically. You can

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unmount a Linux disk partition centos

February 6, 2014February 6, 2014 eduguru 0 Comments -f: Force unmount in case of an unreachable NFS system Caution: Using these commands or option can cause data loss for open files; programs which access files after the file system has been unmounted , -k : Kill processes accessing the file. -m : Name specifies a file on a mounted file system or a block device that is mounted. In above example you are using /mnt Linux umount command to unmount a dis, -l : Also known as Lazy unmount. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. This option works with kernel version 2.4.11+ and above only. If you would like to unmount a NFS mount point then try fo, To unmount a Linux disk partition centos # umount /dev/sda1 Type the command to unmount /mnt forcefully: # fuser -km /mnt Where, unmount a Linux disk partition centos

To unmount a Linux disk partition centos # umount /dev/sda1 Type the command to unmount /mnt forcefully: # fuser -km

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what you need to know, before you deploy the VoIP in your organization : QoS (Quality of Service) for VoIP

February 6, 2014February 28, 2016 eduguru 1 Comment before you deploy the VoIP in your organization, before you deploy the VoIP in your organization : QoS (Quality of Service) for VoIP, lan optimization for VIOP, QoS (Quality of Service) for VoIP, The organization(s) that migrate from legacy PABX system (traditional phone system) to IP based PBX (Private Branch eXchange), They need to ensure the QoS (Quality of Service) for VoIP in your organization., they require a very carefully planning before they deploy the VoIP. They need to ensure the QoS (Quality of Service) for VoIP in your organization. Step 1 Analyze your existing LAN (Local Area Network, what you need to know

The organization(s) that migrate from legacy PABX system (traditional phone system) to IP based PBX (Private Branch eXchange), they require