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  • server will not reply (syn -ack)

    - by Brent
    I like to use the following commands to manage 'TIME_WAIT', in the hope to free up resources. echo 20 > /proc/sys/net/ipv4/tcp_fin_timeout sysctl -w net.ipv4.tcp_tw_reuse=1 sysctl -w net.ipv4.tcp_tw_recycle=1 I found something interesting while doing a tcpdump. Sometimes if a client makes a connection (syn), the server will not reply (syn…

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  • Nagios SSH remote checks and WMI Check

    - by jenglee
    I have install Nagios Core and I am using WMI Checks for Windows and Created a script to execute remote commands through ssh on my Linux machines. When Installing Nagios there is an option to run NsClient++, but I went with the WMI Checks because it is agent less. What are the advantages of using NsClient++ for Nagios? Also would calling…

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  • how can I reconnect DSL in cisco router 877w

    - by Sulaiman
    Hi All, I've configured ADSL and added a new public LAN ips for the router. How can I reconnect DSL connection and apply the new configuration without executing the command reload this is the commands I am using for DSL configuration config terminal interface dialer 0 ppp chap hostname User ppp chap password 0 Pass exit exit wr…

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  • xbindkeys escape quotes

    - by Danilo Bargen
    How can I escape quotes in .xbindkeysrc commands? Neither of those work. "pacmd dump|awk --non-decimal-data '$1~/set-sink-volume/{system ("pacmd "$1" "$2" "$3+2500)}'" "pacmd dump|awk --non-decimal-data '\$1~/set-sink-volume/{system ("pacmd "\$1" "\$2" "\$3+2500)}'" "pacmd dump|awk --non-decimal-data '\$1~/set-sink-volume/{system…

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  • How to kill a windows process in a cygwin terminal?

    - by user1093774
    I have a problem regarding how to kill a process in cygwin on windows. I am completely new to cygwin. But i have a task that i simply cant kill. i have tried issuing the following commands: kill 4568 kill -9 4568 /bin/kill -f 4568 I have issued the commands in a separate cygwin terminal since i cant CTR-C it in the cygwin…

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  • outbound ftp on server 2008 r2 stalls

    - by Scott Kramer
    the built in command line ftp client in server 2008 does not support passive mode so I've used these commands to allow outbound ftp (it stalls without this) 1) Open port 21 on the firewall netsh advfirewall firewall add rule name="FTP (no SSL)" action=allow protocol=TCP dir=in localport=21 2) Activate firewall…

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  • Enter password only once for ssh

    - by usertest
    I use the following commands to sync folders. Each command requires me to type in the password. How can I group these commands to only enter the password once? Thanks. rsync -ave ssh /opt/lampp/htdocs/new/folder1/ root@111.111.111.111:/home/folder1/ rsync -ave ssh /opt/lampp/htdocs/new/folder2/…

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  • pam_tty_audit and non privileged users

    - by Jeff
    I'm working on a cents 6.3 box and am trying to log all commands executed from a bash shell and came across pam_tty_audit. I've added the appropriate line to my /etc/pam.d/system-auth file: "session required pam_tty_audit.so enable=*" The problem is that it does not appear to capture…

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  • Why do I get different openssl versions?

    - by CoCoMonk
    I'm trying to check if I have the latest OpenSSL, my main concern in the heartbleed bug. I tried 2 commands: openssl version yum info openssl openssl version output OpenSSL 1.0.1e-fips 11 Feb 2013 yum info openssl output Installed Packages Name : openssl Arch …

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  • Use of hyphen in shell command

    - by deanloh
    I feel shy to ask this question, but if I don't I will never know, so here I am giving it a shot: I notice most shell commands use "-" for options, but I also noticed some commands do not have it. For example, to archive files in a given direct, the command is: tar czvf allmyfiles.tar.gz * …

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  • Multiple pages per sheet (PDF)

    - by smihael
    I use the following commands pdf2ps input.pdf - | psnup -pA4 -4 >> output.ps ps2pdf output.ps output.pdf rm output.ps to merge multiple pages (in this case 4) from input file to one sheet in outupt file. How can I modify pipelining so that I won't have to use 2 commands, but…

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  • how to use console use in Symfony2

    - by Elzo Valugi
    I found the console and run it like this: root@valugi-laptop:/var/www/sandbox/hello# php console Symfony version 2.0.0-DEV - hello Usage: Symfony [options] command [arguments] Options: --help -h Display this help message. --quiet -q Do not output any message. …

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  • iPhone Shell - is there any?

    - by alee
    While working on iphone security architecture, i came to know that i can run applications from other applications in iphone. referring to the following url http://iphonedevelopertips.com/cocoa/launching-other-apps-within-an-iphone-application.html for example, i can put a link…

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  • iPhone Shell - is there any?

    - by alee
    While working on iphone security architecture, i came to know that i can run applications from other applications in iphone. referring to the following url http://iphonedevelopertips.com/cocoa/launching-other-apps-within-an-iphone-application.html for example, i can put a link…

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