|
erics, August 12th, 2016 Install it: yum install screen Start it up: screen Detach from the session: Control-a d Re-attach to the session later on: screen -r This is a good reference guide: https://www.rackaid.com/blog/linux-screen-tutorial-and-how-to/
Categories: How-To's, Technology AWS, howto, Install, Linux, Screen, tips
| 
No comments
erics, July 4th, 2016 If you get this error when starting Apache or via apachectl configtest: [warn] _default_ VirtualHost overlap on port 443, the first has precedence then you must add: NameVirtualHost *:443 to /etc/httpd/conf/httpd.conf, then restart Apache
Categories: How-To's, Technology 443, apache, AWS, CentOS, howto, https, Linux, Overlap, ssl, tips, VirtualHost, Web
| No comments
erics, June 29th, 2016 root@myHost # apt-get update Hit http://cloudfront.debian.net wheezy Release.gpg Hit http://cloudfront.debian.net wheezy-updates Release.gpg Hit http://cloudfront.debian.net wheezy-backports Release.gpg Hit http://cloudfront.debian.net wheezy Release Hit http://cloudfront.debian.net wheezy-updates Release Hit http://cloudfront.debian.net wheezy-backports Release Hit http://cloudfront.debian.net wheezy/main Sources Hit http://cloudfront.debian.net wheezy/main amd64 Packages Hit http://cloudfront.debian.net wheezy/main Translation-en Hit http://cloudfront.debian.net wheezy-updates/main Sources Hit http://security.debian.org wheezy/updates Release.gpg Get:1 http://cloudfront.debian.net wheezy-updates/main amd64 Packages/DiffIndex [2,488 […]
Categories: How-To's, Technology apt-get, Debian, Error, howto, key, Linux, public, Public Key, tips
| No comments
erics, June 17th, 2016 Jun 17 00:02:45 inbound dovecot: IMAP(yourName): Corrupted index cache file /home/yourName/Maildir/dovecot.index.cache: invalid record size
|
1 2 3 4 |
service dovecot stop cd /home/yourName/Maildir/ rm dovecot.index* service dovecot start |
As always, YMMV. Proceed with caution.
Categories: How-To's, Technology AWS, Cache, Cache file, Corrupted, Corrupted index, Dovecot, Email, File, howto, IMAP, Index, Linux, mail, Mailhost, PostFix, tips
| No comments
erics, June 6th, 2016 convert myFile*.jpg myFile.pdf convert myFile*.png myFile.pdf
Categories: How-To's, Technology cli, Command line, convert, howto, IM, ImageMagick, JPG, Linux, PDF, PNG, tips
| No comments
erics, December 16th, 2015 ps -afxt
Categories: How-To's, Technology Linux, Process Tree, ps
| No comments
erics, January 28th, 2015 As per ARS Technica: “An extremely critical vulnerability affecting most Linux distributions gives attackers the ability to execute malicious code on servers used to deliver e-mail, host webpages, and carry out other vital functions.” To patch, run: yum update glibc Article: http://arstechnica.com/security/2015/01/highly-critical-ghost-allowing-code-execution-affects-most-linux-systems/ Amazon Alert: https://alas.aws.amazon.com/ALAS-2015-473.html Original Advisory: http://www.openwall.com/lists/oss-security/2015/01/27/9
Categories: How-To's, Technology AWS, Buffer, Buffer Overflow, gethostbyname, Ghost, glibc, howto, Linux, Overflow, patch, tips, Vulnerability, Yum
| No comments
erics, October 16th, 2014 Permission denied: could not bind to address To disable on the fly: # getenforce Enforcing # setenforce 0 # getenforce Permissive # sestatus To survive a reboot: # vi /etc/sysconfig/selinux Change: SELINUX=enforcing to SELINUX=disabled ~or~ SELINUX=permissive
Categories: How-To's, Technology /etc/sysconfig/selinux, AWS, bind, Bind to Address, CentOS, getenforce, howto, Linux, Permission, Permission Denied, SELinux, setenforce, tips
| No comments
erics, October 1st, 2014 This is the standard upgrade method for AWS Linux AMI’s:
|
1 2 |
yum clean all yum update bash |
Or use this for the version 2012.09, 2012.03, or 2011.09 repositories:
|
1 2 |
yum clean all yum --releasever=2013.03 update bash |
For older AWS Linux AMI’s, you may not be able to use the standard upgrade method as described in this link: https://alas.aws.amazon.com/ALAS-2014-419.html These are the steps needed to manually patch bash 4.1: […]
Categories: How-To's, Technology AMI, AWS, AWS Linux, bash, Beta, bug, Linux, patch, ShellShock
| 1 comment
erics, September 9th, 2014 rpm -qa | grep epel-release | awk -F- ‘{print $3}’ Examples: RHEL5/Centos5 root@aws1:/root # cat /etc/issue Amazon Linux AMI release 2010.11.2 (beta) root@aws1:/root # rpm -qa | grep epel-release epel-release-5-4.noarch root@aws1:/root # rpm -qa | grep epel-release | awk -F- ‘{print $3}’ 5 RHEL6/Centos6 root@aws2:/root # cat /etc/issue Amazon Linux AMI release 2013.09 root@aws2:/root # […]
Categories: How-To's, Technology Amazon, AWS, howto, Linux, release, RHEL, tips, Version
| No comments
