Linux

Linux - Google Earth

[leo@thinkleo2 ~]$ /opt/google/earth/free/google-earth Google Earth appears to be running already. Please kill the existing process, or delete /home/leo/.googleearth/instance-running-lock if this is an error. [leo@thinkleo2 ~]$ rm /home/leo/.googleearth/instance-running-lock [leo@thinkleo2 ~]$ /opt/google/earth/free/google-earth

6 January 2012 @ 18:56 · Updated: 30 June 2026 @ 03:28 · leo

Linux - IBM LinTape driver

If you need to user ibm lto tape drive inside IBM, Adic, Dell tapelibrary, with Tivoli Storage Manager is necessary to use Download latest driver from IBM Fixcentral: Storage Systems => Tape Systems => Tape device drivers and software => Linux Get two two RPMs (my system is an RHEL 5 on 32bit hardware) : lin_tape-1.61.0-1.src.rpm <== Kernel module lin_taped-1.61.0-rhel5.i386.rpm <== Binary services First step, rebuild the source: # rpmbuild --rebuild lin_tape-1.61.0-1.src.rpm` ` Installing lin_tape-1.61.0-1.src.rpm Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.625 + umask 022 + cd /usr/src/redhat/BUILD + cd /usr/src/redhat/BUILD + rm -rf lin_tape-1.61.0 + /bin/gzip -dc /usr/src/redhat/SOURCES/lin_tape-1.61.0.tgz [cut] Wrote: /usr/src/redhat/RPMS/i386/lin_tape-1.61.0-1.i386.rpm Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.18792 + umask 022 + cd /usr/src/redhat/BUILD + cd lin_tape-1.61.0 + rm -rf /var/tmp/lin_tape-1.61.0-1-root-root + exit 0 Executing(--clean): /bin/sh -e /var/tmp/rpm-tmp.18792 + umask 022 + cd /usr/src/redhat/BUILD + rm -rf lin_tape-1.61.0 + exit 0 Second step, install all: ...

19 December 2011 @ 03:41 · Updated: 30 June 2026 @ 03:28 · leo

NetworkManager modifies /etc/hosts

There is an annoying bug (or feature depends on point of view) every restart/reconnect managed by NetworkManager, restore the original /etc/hosts loaded on startup. I’ve made a 3 line script inspired by visudo to manual edit the hosts file and prevent the other unexpected modifies: File like (with +x attribute): /usr/sbin/vihosts #!/bin/sh sudo chattr -i /etc/hosts sudo vim /etc/hosts sudo chattr +i /etc/hosts

26 November 2011 @ 22:09 · Updated: 30 June 2026 @ 03:28 · leo

Citrix - ICAClient issue on Linux REHL6

Another stupid Citrix ICAClient issue on Redhat linux: [leo@thinkleo2 ~]$ /usr/lib/ICAClient/wfcmgr -icaroot /usr/lib/ICAClient Warning: Missing charsets in String to FontSet conversion Warning: Missing charsets in String to FontSet conversion Warning: Unable to load any usable fontset Error: Aborting: no fontset found Solution 1 force language C (my favourite for any lang problems): [leo@thinkleo2 ~]$ export LANG=C Solution 2 remove charset cjkuni: [leo@thinkleo2 ~]$ sudo yum remove cjkuni* Loaded plugins: priorities, product-id, refresh-packagekit, rhnplugin, subscription-manager Updating Red Hat repositories. Setting up Remove Process Resolving Dependencies --> Running transaction check ---> Package cjkuni-fonts-common.noarch 0:0.2.20080216.1-34.el6 will be erased ---> Package cjkuni-fonts-ghostscript.noarch 0:0.2.20080216.1-34.el6 will be erased ---> Package cjkuni-ukai-fonts.noarch 0:0.2.20080216.1-34.el6 will be erased ---> Package cjkuni-uming-fonts.noarch 0:0.2.20080216.1-34.el6 will be erased --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================= Package Arch Version Repository Size ============================================================================================================================= Removing: cjkuni-fonts-common noarch 0.2.20080216.1-34.el6 @anaconda-RedHatEnterpriseLinux-201105101829.i386/6.1 0.0 cjkuni-fonts-ghostscript noarch 0.2.20080216.1-34.el6 @rhel-i386-workstation-6 6.2 k cjkuni-ukai-fonts noarch 0.2.20080216.1-34.el6 @rhel-i386-workstation-6 17 M cjkuni-uming-fonts noarch 0.2.20080216.1-34.el6 @anaconda-RedHatEnterpriseLinux-201105101829.i386/6.1 21 M Transaction Summary ============================================================================================================================= Remove 4 Package(s) Installed size: 37 M Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Erasing : cjkuni-fonts-ghostscript-0.2.20080216.1-34.el6.noarch 1/4 Erasing : cjkuni-ukai-fonts-0.2.20080216.1-34.el6.noarch 2/4 Erasing : cjkuni-uming-fonts-0.2.20080216.1-34.el6.noarch 3/4 Erasing : cjkuni-fonts-common-0.2.20080216.1-34.el6.noarch 4/4 duration: 336(ms) Installed products updated. Removed: cjkuni-fonts-common.noarch 0:0.2.20080216.1-34.el6 cjkuni-fonts-ghostscript.noarch 0:0.2.20080216.1-34.el6 cjkuni-ukai-fonts.noarch 0:0.2.20080216.1-34.el6 cjkuni-uming-fonts.noarch 0:0.2.20080216.1-34.el6 Complete! [leo@thinkleo2 ~]$

24 November 2011 @ 06:05 · Updated: 30 June 2026 @ 03:28 · leo

Linux - Multicast DVB-S router for EUMETCast

This simple script transform a linux box into a DVB-S Satellite router to receive data from Eurobird 9E used by EUMETSAT to redistribute weather satellite image. REQUIRE: DVB Tools SMCroute PCI Card supported by Linux/DVB Tools (ex. Skystar 2) #!/bin/bash #################################################################### # # # Leonardo Rizzi # # Late night 24/04/2010 # # Revision 1.0 # # Tune DVB-S pci card for Eurobird 9E shifted from 13E Hotbird # # Tune, set net PID, Enable multicasting ecc. ecc. blah blah buuuu # # # #################################################################### #Globalvar DTUNE="/usr/bin/dvbtune" DNET="/usr/bin/dvbnet" MROUTE="/usr/sbin/smcroute" IFCONFIG="/sbin/ifconfig" SERVICE="eumetsat" #Set dvbcard 0-3 INT="0" #Set multicast forwarding interface and ip (by default TelliCast bind on 192.168.238.238) MINT="eth1" MIP="192.168.238.238" #Set absolute frequency in Hz FREQ=11977000 #Set polarization POL=H #Set symbol rate SYR=27500 #Set PID one space for value separation PID="100 300 301 302 500 509 510 511" #Begin start!! case "$1" in start) # Pre-Start check test -x $DTUNE || { echo "$DTUNE not installed or not configured properly"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } test -x $DNET || { echo "$DNET not installed or not configured properly"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } test -x $MROUTE || { echo "$MROUTE not installed or not configured properly"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } test -x $IFCONFIG || { echo "$IFCONFIG not installed or not configured properly"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } test -d /dev/dvb/adapter$INT || { echo "DVB$INT device not installed or not configured properly"; if [ "$1" = "stop" ]; then exit 0; else exit 5; fi; } # Tuning the dvb frequency echo "" echo "Tune the satellite donwlink on interface ${INT}" ${DTUNE} -c ${INT} -f ${FREQ} -p ${POL} -s ${SYR} -m >/dev/null 2>&1 & # Set address on local forwarding interface and bring it up echo "" echo "Set multicast forwarding interface ${MINT}" ${IFCONFIG} ${MINT} ${MIP} multicast up # Set PID on active dvb interface echo "" echo "Set net interface for listed PID:" for i in ${PID} do echo "Bring up PID $i" ${DNET} -a ${INT} -p $i>/dev/null 2>&1 done # Set address on dvbs interfaces and bring it up echo "" echo "Set net interface up:" for ii in {0..7} do echo "Bring up dvb net interface $ii" ${IFCONFIG} dvb${INT}_$ii 192.168.22$ii.238 up >/dev/null 2>&1 done # Start multicast router echo "" echo "Enable Multicast Router" ${MROUTE} -d #PID 100 multicast forward echo "Set multicast for PID 100" ${MROUTE} -a dvb0_0 192.168.1.1 224.223.222.34 ${MINT} ${MROUTE} -a dvb0_0 192.168.1.1 224.223.222.36 ${MINT} ${MROUTE} -a dvb0_0 192.168.1.1 224.223.222.40 ${MINT} ${MROUTE} -a dvb0_0 192.168.1.1 224.223.222.223 ${MINT} #PID 300 multicast forward echo "Set multicast for PID 300" ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.21 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.31 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.32 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.37 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.226 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.252 ${MINT} ${MROUTE} -a dvb0_1 192.168.1.1 224.223.222.253 ${MINT} #PID 301 multicast forward echo "Set multicast for PID 301" ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.23 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.33 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.38 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.39 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.35 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.227 ${MINT} ${MROUTE} -a dvb0_2 192.168.1.1 224.223.222.251 ${MINT} #PID 302 multicast forward echo "Set multicast for PID 302" ${MROUTE} -a dvb0_3 192.168.1.1 224.223.222.25 ${MINT} #PID 500 multicast forward echo "Set multicast for PID 500" ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.1 ${MINT} ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.22 ${MINT} ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.28 ${MINT} ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.27 ${MINT} ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.29 ${MINT} ${MROUTE} -a dvb0_4 192.168.1.1 224.223.222.30 ${MINT} #PID 509 multicast forward echo "Set multicast for PID 509" ${MROUTE} -a dvb0_5 192.168.1.1 224.223.222.248 ${MINT} ${MROUTE} -a dvb0_5 192.168.1.1 224.223.222.249 ${MINT} ${MROUTE} -a dvb0_5 192.168.1.1 224.223.222.250 ${MINT} #PID 510 multicast forward echo "Set multicast for PID 510" ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.231 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.232 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.233 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.234 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.235 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.236 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.237 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.239 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.240 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.242 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.243 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.244 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.245 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.246 ${MINT} ${MROUTE} -a dvb0_6 192.168.1.1 224.223.222.247 ${MINT} sleep 5 ;; stop) # Stopping the dvb card echo "" echo "Stopping Satellite Downlink" killall dvbtune >/dev/null 2>&1 echo "" echo "Stopping Multicast Routing" # Stopping Multicast Router ${MROUTE} -k # Disable dvbs interfaces and remove active PID echo "" echo "Shutting down DVB-S interfaces" for iii in {0..7} do /sbin/ifconfig dvb0_$iii down >/dev/null 2>&1 ${DNET} -d $iii >/dev/null 2>&1 done # Remove and disable multicasting forwarding interface echo "" echo "Shutting down multicasting forwarding interface" ${IFCONFIG} ${MINT} del ${MIP} multicast ${IFCONFIG} ${MINT} down ;; restart) $0 stop $0 start ;; status) PID1='pidof dvbtune' echo "" echo "Tuning subsystem running at pid" $PID1 PID2='pidof smcroute' echo "" echo "Mulicast router running at pid" $PID2 ;; multicast) echo "Multicasting Routing table:" ip mroute show ;; *) echo "Usage: $0 [start|stop|restart|status|multicast]" ;; esac exit;s

10 October 2011 @ 04:19 · Updated: 29 June 2026 @ 22:00 · leo

Omikey Cardman 4040 - Linux FC14

In this post I describe how to get works OMNIKEY Cardman 4040, a pcmcia smartcard reader/writer under Linux Ferdora 14 using manufacturer PC/SC driver. Install the required packages: [root@thinkleo1 ~]# yum install pcsc-lite openct opensc Configure OpenSC With PC/SC cardbus access OpenCT is useless but without that daemon, on every smartcard operational commad you get lot of this erros: Error: can't open /var/run/openct/status: No such file or directory Then to avoid (openct/opensc/pcscd) conflicts I prefer to disable openct framework like this: ...

23 January 2011 @ 18:53 · Updated: 30 June 2026 @ 03:28 · leo

Citrix - ICAClient issue on Linux FC13

If you are using Citrix ICA Client (v.11.100) on Linux specially Fedora 13 after “java-1.6.0-openjdk” update the following dependencies will be installed: baekmuk-ttf-batang-fonts 2.2-29.fc13 baekmuk-ttf-dotum-fonts 2.2-29.fc13 baekmuk-ttf-fonts-common 2.2-29.fc13 baekmuk-ttf-gulim-fonts 2.2-29.fc13 baekmuk-ttf-hline-fonts 2.2-29.fc13 cjkuni-ukai-fonts 0.2.20080216.1-42.fc13 cjkuni-uming-fonts 0.2.20080216.1-42.fc13 lohit-malayalam-fonts 2.4.4-5.fc13 sazanami-fonts-common 0.20040629-14.fc13 sazanami-gothic-fonts 0.20040629-14.fc13 sazanami-mincho-fonts 0.20040629-14.fc13 After this updates ICAClient stops working with flollowing error: Warning: Name: FONTLIST_DEFAULT_TAG_STRING Class: XmRendition Conversion failed. Cannot load font. The problem was located under “sazanami-mincho-fonts” I’ve no time to fix fontpath problem in this stupid application developed in motif, then my little workaround was: ...

28 November 2010 @ 23:37 · Updated: 30 June 2026 @ 03:28 · leo

Linux - Removing all IP information from an interface

If an interface has already had IP addresses assigned to it, and all of the addresses need to be removed (along with their routes), there is one handy command to accomplish all of these tasks. ip address flush takes an interface name as an argument. Let’s look at the output of ip address show just before and just after removing all IPs. [root@logistic]# ip address show dev eth0 2: eth0: <BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:80:c8:f8:4a:51 brd ff:ff:ff:ff:ff:ff inet 192.168.99.35/24 brd 192.168.99.255 scope global eth0 inet 192.168.99.37/24 brd 192.168.99.255 scope global secondary eth0:0 [root@logistic]# ip address flush Flush requires arguments. [root@logistic]# ip address flush dev eth0 [root@logistic]# ip address show dev eth0 2: eth0: <BROADCAST,MULTICAST,UP mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:80:c8:f8:4a:51 brd ff:ff:ff:ff:ff:ff

22 July 2010 @ 23:44 · Updated: 30 June 2026 @ 03:28 · leo

CentOS - IPv6 interface

You need to update and configure following files for IPv6 configuration: Edit: /etc/sysconfig/network And append following line, to enable in systemwide the ipv6 protocol: NETWORKING_IPV6=yes Edit: /etc/sysconfig/network-scripts/ifcfg-eth1 (or your interface number) And append following line, to enable ipv6 on interface and the address/gateway if you use static routing: IPV6INIT=yes IPV6ADDR=2001:1418:0193:000B::210 IPV6_DEFAULTGW=2001:1418:0193:000B::251 Save, close and restart network service: # service network restart

14 April 2010 @ 09:53 · Updated: 30 June 2026 @ 03:28 · leo

Debian - Kernel Headers

Memo: Install linux-header package # apt-get install linux-headers-$(uname -r)

14 April 2010 @ 07:27 · Updated: 30 June 2026 @ 03:28 · leo