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🔒 Karlo Luiten

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Certbot centos 7
Get x11 forwarding working on Centos 7 & Putty & Xming
Reset ILO via SSH
Auto root login Centos 7 / EL 7
Set up TOTP/Google authenticator on Centos 7
LVM show pvmove status
Ovirt POSIX storage failing – Error while executing action Add Storage Connection: Problem while trying to mount target
Found ArcSight parser functions
Linux screencasting with overlays and all: OBS
Tail: prepend file name to tailing output (bash)
Node Rocketchat npm fibers not running ( versionGLIBCXX_3.4.20 not found ) on centos/rhel
Personal (manual) template for internal hosts
ArcSight upgrade/install “Unable to carry out the checkLocalHost check.”
Bash suppress all output of script (echo off – style)
Certmonger defunct RHEL7
Install Domoticz on Centos 7
Dell get serial / service tag on windows / linux
Fix DRAC too many sessions (invalid credentials)
Yum Error: database disk image is malformed fix
Nagios check_http HTTP WARNING: HTTP/1.1 400 Bad Request – 1307 bytes in 0.084 second response time
MS outlook quoting inline
SHA3 of most popular passwords part 5
SHA3 of most popular passwords part 4
SHA3 of most popular passwords part 3
SHA3 of most popular passwords part 2
SHA3 of most popular passwords part 1
sha3 of 1000 most common English words
SVN diff ignore white space
Vim reselect previous visual block
6479e00fe1e437780cc1d60217ee374cabfd12eb494e6398dc95484c
Shodan IP list
RHEL CD repo
IPTables firewalld replace
FIX Invalidating snapshot: Unable to allocate exception
Logical volume vg0/lv contains a filesystem in use.
Grep / sed ignore matching and next line
Apache/httpd on rentos/rhel pam radius auth fail (Password Mismatch with GOOD password)
sssd pam System error 4 at login (FIX)
HP storage raid controller status disks
GDM Fedora autologin change session
Bind mounts
Changing nsslapd-cachememsize
[FIX] Puppet Failed to load feature test for posix: can’t find user for 0
Fedora Nemo disable background/desktop rendering (on awesomewm)
Failed to initialize credentials using keytab
Tmux session renaming
Connect to Slack using a znc bouncer
Let’s Encrypt AttributeError: ‘X509’ object has no attribute ‘_x509’
Howto: let’s encrypt for znc irc certs
Howto: stand alone let’s encrypt on centos7 (certs only)
Could not complete SSL handshake. – BUT YOU TRIED EVERYTHING!
Linux df says disk is full, du does not add up
LVM lv logical volumes not in mapper (or in /dev)
Reboot failing in RHEL/centos: Failed to talk to init daemon.
Bash compound commands (()){{}}{}[[]]
Bash inline number increase (( ++i ))
lvm VGrename and lvrename in linux
RHEL crash after flush journal to persistent
Check SSL ciphers remotely using nmap
Offending DSA key /var/lib/sss/pubconf/known_hosts
RHEL/Fedora auto apply updates (dnf/yum)
RHEL7 systemctl systemd list shutdown jobs (pending)
Restart UDEV (/sbin/udevd-d) on RHEL7
Get ip info on command line
Run programs without execute rights on file
java.net.MalformedURLException: unknown protocol: socket
Fix broken yum database (DB_RUNRECOVERY)
Tmux arrow key navigation
Bash keyboard shortcuts
Simple sudo
Vim clear whole file (clear/delete all lines in vim/vi)
Delete old files (with find)
SELinux openvpn on Fedora (Network Manager) not working
HP iLO 4 on Linux (Opera & Firefox) no Java console
tcpdump all but own (connected) ip
List all arcsight connector memory usages
Fix (13)Permission denied access to * denied * because search permissions are missing on a component of the path
Reset HP/HPE iLO 4 password with CLI on Linux
Simulate cron environment
Sum list of numbers
Self extracting zipped encrypted linux package
Better top?
Get linux process start time and date
New server
Vim lazy/non greedy search
Automate key and mouse events in Linux (xev/xdotool)
Better less
*nix shorter/better commands (grep/wc/cat) from Useless Use of Cat Award
Regenerate grub2
No memory reserved for crash kernel
FIX error: ‘unixd_config’ undeclared when building apache module
Fix “verification of user id ” not configured” with mod_auth_xradius
Fix “missing AddRadiusAuth in this context?”
FIX misc.py:732:_decompress_chunked:MiscError: xz compression not available
Fix rpm/yum database (BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery)
RHEL not respecting oddjob mkhomedir umask from login defs
Make FreeRADIUS talk to FreeIPA / RHEL IDM
NTPq -p output signs before hosts
Fix RedHat IDM server problems
Rsyslog syntax error on token ‘regex’ / ‘ereregex’

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ArcSight upgrade/install “Unable to carry out the checkLocalHost check.”

fix:

mount -o remount,rw,exec /tmp

Posted on March 16, 2018Author karloCategories Uncategorized

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