tag:blogger.com,1999:blog-49908088274535900472024-03-09T00:13:54.572+02:00LinuxMy Linux hack notesstanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-4990808827453590047.post-10793597512576114202019-03-10T09:35:00.002+02:002019-03-10T10:23:45.302+02:00Freebsd wifi setup on raspberry piGet TP-Link USB wifi module to load.<br />
Edit /boot/loader.conf<br />
Add<br />
<br />
if_rtwn_load="YES"<br />
legal.realtek.license_ack=1<br />
if_rtwn_usb_load="YES"<br />
wlan_wep_load="YES"<br />
wlan_ccmp_load="YES"<br />
wlan_tkip_load="YES"<br />
<div>
<br /></div>
<br />
Then reboot.<br />
<br />
Run ifconfig -a to check if wlan0 is up.<br />
<br />
Manual test<br />
ifconfig wlan create wlandev rtwn0 inet 192.168.0.20 netmask 0xffffff00<br />
<br />
wlan0 is now up.stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-9773374972402425482014-09-12T08:19:00.003+02:002014-09-12T08:22:48.763+02:00Apache config file syntax check.To check the syntax of a apache config file.<br />
<br />
<br />
httpd -S -f [config file.conf]stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-43079338741372626032014-08-13T15:44:00.001+02:002014-08-13T16:24:40.517+02:00Copy files between 2 remote servers using cpio.ssh rhost1 "find dir | cpio -ocB" | ssh rhost2 "cd rdir2;cpio -ivB "stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-70766787520664303342011-06-10T11:04:00.001+02:002014-09-12T08:17:18.473+02:00Watch commandUse the watch command to highlight changes in vmstat & iostat <br />
<br />
<div style="color: #073763;">
watch -d --interval=1 iostat -xc</div>
<br />
<div style="color: #073763;">
watch --color -d --interval=1 vmstat</div>
stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-82643875255104889512009-08-18T13:51:00.003+02:002009-08-18T14:08:46.949+02:00cpio examplesTo create an archive<br /><span style="font-weight: bold; color: rgb(51, 102, 255);">find . | cpio -ocvB > x.cpio</span><br /><br />Read an archive:<br /><span style="font-weight: bold;"><span style="color: rgb(51, 102, 255);">cpio -itcvB -I x.cpio</span><br /></span><br />Read a file from archive:<br /><span style="font-weight: bold; color: rgb(51, 102, 255);">cpio -itcvB -I x.cpio ".ssh/known_hosts"</span><br /><br />Restore the file (remove the t option).<br /><span style="font-weight: bold; color: rgb(51, 102, 255);">cpio -icvB -I x.cpio ".ssh/known_hosts"</span>stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-56775330550343621102009-08-18T09:51:00.001+02:002009-08-24T08:35:34.387+02:00List hardware<span style="color: rgb(51, 102, 255); font-weight: bold;">dmidecode</span>stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-34271330261990867512009-01-07T09:24:00.003+02:002010-11-24T17:02:16.194+02:00wget tips<span style="font-size:130%;">Using wget to download file with a site that requires authentication.</span><br /><br /><span style="font-weight: bold; color: rgb(51, 51, 255);">wget ftp://user:password@ftp.site.com/dir/file.name</span>stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-43147353741453828092008-08-22T18:49:00.003+02:002009-08-24T08:37:22.818+02:00Grub. Quick fix after XP re-installBoot off rescue dvd/cd.<br />start grub.<br /><span style="color: rgb(51, 102, 255);">>find /boot/grub/stage1</span><br /><span style="color: rgb(51, 102, 255);">(hd0,2)</span><br /><span style="color: rgb(51, 102, 255);">>root (hd0,2)</span><br /><span style="color: rgb(51, 102, 255);">>setup (hd0)</span><br /><span style="color: rgb(51, 102, 255);">>exit</span><br /><br />reboot.stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com1tag:blogger.com,1999:blog-4990808827453590047.post-57869050621372387852008-05-21T08:59:00.003+02:002009-08-24T08:38:37.342+02:00Create large files for testing.This command will create a 100Mb file.<br /><br /><code><span style="font-weight: bold; color: rgb(51, 102, 255);">dd if=/dev/random of=myfile.dat bs=$(( 1024 * 1024 )) count=100</span><br /><br /></code>This can take a long time, so try this<br /><br /><code style="color: rgb(51, 102, 255); font-weight: bold;">dd if=/dev/zero of=myfile.dat bs=$(( 1024 * 1024 )) count=100</code><br /><br />See <a href="http://administratosphere.wordpress.com/2007/11/23/quickly-creating-large-files/">Unix Administratosphere</a> for more detail.stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-50381771038392831622008-01-31T17:01:00.001+02:002009-08-24T08:36:58.723+02:00Redhat: Change server nameEdit name in <span style="color: rgb(51, 102, 255);">/etc/sysconfig/network</span>stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-72814542084784193572007-07-06T09:47:00.003+02:002009-08-24T08:36:25.435+02:00VisudoUsing sudo with groups<br /><br />1.<br /> <br /><span style="font-style: italic; color: rgb(51, 102, 255);"># Cmnd alias specification<br />Cmnd_Alias USER_SU = /usr/bin/su - ngu</span><br /><br />2.<br /><br /><span style="font-style: italic;">At the bottom of the sudoers file.<br /><span style="color: rgb(51, 102, 255);">%ngp ALL = USER_SU</span></span><br /><br /><br />This will allow anyone belonging to group ngp to sudo to user ngu.stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0tag:blogger.com,1999:blog-4990808827453590047.post-47747985653473707082007-06-12T12:31:00.002+02:002009-08-24T10:20:57.997+02:00Easy way to set a user password<span style="color: rgb(51, 102, 255);">echo "password" | passwd --stdin username</span>stanlohttp://www.blogger.com/profile/15470194537375016885noreply@blogger.com0