To make sure that you do not destroy your real files make a copy to temporary folder. # mkdir /tmp# cd tmpNow, I’m in the folder /tmp. Currently, this is a empty working directory. We make 500 new files in the extension .dot as the following: # for x in {1..500}; do touch “file$x.dot”; done […]
How to change all file extensions in a folder Read More »
AIX does neither use the BSD style rc.local file nor the System V style /etc/rc*.d startup files directories. To add local daemons to the system startup sequence in a BSD rc.local style use the following command to create an /etc/inittab entry: # mkitab -i rcnfs “rclocal:2:wait:/etc/rc.local >/dev/console 2>&1” # touch /etc/rc.local # chmod 700 /etc/rc.local
AIX: How do I start local daemons at system startup? Read More »
The file /var/adm/wtmp grows with each login, but is never reduced. The contents of wtmp is used (only?) by the command “last”, which shows, in reverse order, all the logins and reboots that happened since the start of the wtmp file. The file should not be deleted, but the contents can be discarded using the
How can I reduce the size of /var/adm/wtmp ? Read More »
SMIT only allows 64. Try this: odmget -q”attribute=num and uniquetype=pty/pty/pty” PdAt | sed “s/0-64/0-512/” | odmchange -q”attribute=num and uniquetype=pty/pty/pty” -o PdAt chdev -l pty0 -anum=256 -P reboot Original post blogged on b2evolution.
AIX: How do I increase the number of ptys > 64? Read More »
I use the following steps on the master machine to clone an AIX system: 1) Remove the password from root. 2) Remove the NIS line from the end of the /etc/group file (the last line with the +: ) 3) Change most of the level ‘2’ designations in /etc/inittab to level ‘3’ to prevent them
AIX: How do I use mksysb to clone a system? Read More »
#ncheck -i nnnn /mntpoint Original post blogged on b2evolution.
How do I find a file name from the inode number? Read More »
1) In /etc/syslog.conf, add the line: daemon.debug /tmp/daemon.log 2) # touch /tmp/daemon.log # refresh -s syslogd 3) Modify your inetd.conf so that ftpd is called with the “-l” flag. You may also want the “-d” flag. This can be done with ‘smit inetdconf’. All the syslog messages from various system daemons should now appear in
How can I log information about ftp accesses to a file? Read More »
AIX logs messages as specified in /etc/syslog.conf. Here’s an example # *.err;kern.debug;auth.notice;user.none /dev/console *.err;kern.debug;daemon,auth.notice;mail.crit;user.none /var/adm/messages lpr.debug /var/adm/lpd-errs *.alert;kern.err;daemon.err;user.none operator *.alert;user.none root *.emerg;user.none * # for loghost machines, to have authentication messages (su, login, etc.) # logged to a file, un-comment out the following line and adjust the # file name as appropriate. # # if
AIX : Where are the AIX log files kept? Read More »
Note: If you are a /usr server, do not use this because the files mentioned below are needed by /usr clients and cannot be deleted. Installp creates numerous files in /usr to clean up after failed/rejected installs and also for de-installing uncommitted lpps. Once you have COMMITted packages you can remove these files safely. Depending
AIX: How can I recover space after installing updates? Read More »
1) create a paging space to use temporarily mkps -s 20 -a rootvg 2) change default paging space hd6 so it is not used at next reboot chps -a n hd6 3) For AIX 3.1, edit /etc/rc.boot4 and change swapon /dev/hd6; for AIX 3.2 and 4.x, edit /sbin/rc.boot and change swapon /dev/hd6 swapon /dev/paging00 3a)Since
AIX: How do I shrink the default paging space on hd6? Read More »