Cleaning with Bourne Again SHell

Hi * Arguments list too long Some times ls hang when you have many files 1×10^[5+] or remove file using asterix “rm ./*” for example try generate 355381 files and use ls in directory an d when you try rm all files fro directory bash return error ” argument list too long ” Best…

Amd Rydzen 2700x and lm_sensors

Last time i had a lite problem witch lm sensos and my new cpu on am4 socket. At the moment i have in my pocket only one solutions : loda module it87: modprobe it87 force_id=0x8628 dmesg should return information [11813.249319] it87: Found IT8628E chip at 0x290, revision 6 [11813.249359] it87: Beeping is supported [11813.249772] it87:…

DANCE WITH SWAP

You server may have minion gigabyte free ram but one angry application want dance with swap. Is not the scenario sci-fi move but very popular problem now ist more paintfull in the era of ssd diks. We have 2 way for resolve this issue change value swappiness or change application Deep The Linux 2.6…

/usr/share/rhn/ULN-CA-CERT ORACLE LINUX ENTERPRISE 6

If you have problem with ULN-CA-CERT „The certificate /usr/share/rhn/ULN-CA-CERT is expired. Please ensure you have the correct certificate and your system time is correct." You need download few package from oracle . mkdir rpmtmp cd rpmtmp wget –no-check-certificate https://public-yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/getPackage/rhn-client-tools-1.0.0.1-38.0.6.el6.noarch.rpm wget –no-check-certificate https://public-yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/getPackage/rhn-setup-1.0.0.1-38.0.6.el6.noarch.rpm wget –no-check-certificate https://public-yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/getPackage/rhn-setup-gnome-1.0.0.1-38.0.6.el6.noarch.rpm wget –no-check-certificate https://public-yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/getPackage/rhn-check-1.0.0.1-38.0.6.el6.noarch.rpm rpm -Uvh rhn*.rpm

I/O SEEKERS

Many users rent VPS but sometimes there exist limits I/0 on disks.I show you To not fall how to protect himself from extra cost trap I/O . First use vmstat vmstat is a great tool for fast analyzing usage ram swap cpu and I/O . To many I/O operations is always reasons for analysis system. The…

Netcat fast port scaner

Sometimes in production environment we can`t install additional software . Only one options i use what we have at hands .Net cat is great tool and more flexible than old telnet . This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the…

Attempts to login secure shell

Simple script show attempts login ssh to Linux machine divide by day This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters #v.01 #for…

/dev/tcp forgotten linux delicacy

Most of use nmap , ping ,ping ,wget curl , nc …. when need use or diagnose network from linux command line. I want show you how to use bash for fast diagnostic , scanning ,send or download files, open websites , check services and create simple backdoor. Lets Begin /dev/{tcp,udp}/ it’s pseudo device file…

Speed test WAN(RX) with nice char

I created a lite more beauty version speed test tool for analysing RX speed of you network. It’s simple idea curl get website and measue speed . Collecting data in file bps.sh This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in…