![Moxa UC-8410A-T-LX [40/86] Sudo mechanism](/img/pdf.png)
Moxa UC-8410A-T-LX [40/86] Sudo mechanism
![Moxa UC-8410A-T-LX [40/86] Sudo mechanism](/views2/1199715/page40/bg28.png)
UC-8410A Series Linux Software UC-8410A-LX Security
4-3
Sudo Mechanism
In the UC-8410A-LX, the root account is disabled for better security. Sudo is a program designed to let system
administrators allow some users to execute some commands as root (or another user). The basic philosophy is
to give as few privileges as possible but still allow people to get their work done. Using sudo is better (safer)
than opening a session as root for a number of reasons, including:
• Nobody needs to know the root password (sudo prompts for the current user's password). Extra privileges
can be granted to individual users temporarily, and then taken away without the need for a password
change.
• It is easy to run only the commands that require special privileges via sudo; the rest of the time, you work
as an unprivileged user, which reduces the damage that mistakes can cause.
• The code below shows that some system level commands are not available to the user
moxa directly.
moxa@Moxa:~$ ifconfig
-bash: ifconfig: command not found
moxa@Moxa:~$ sudo ifconfig
eth0 Link encap:Ethernet HWaddr 00:90:e8:00:00:07
inet addr:192.168.3.127 Bcast:192.168.3.255 Mask:255.255.255.0
UP BROADCAST ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
eth1 Link encap:Ethernet HWaddr 00:90:e8:00:00:08
inet addr:192.168.4.127 Bcast:192.168.4.255 Mask:255.255.255.0
UP BROADCAST ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:32 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2592 (2.5 KiB) TX bytes:2592 (2.5 KiB)
Содержание
- Edition 1 may 2016 1
- Uc 8410a series linux software user s manual 1
- Www moxa com product 1
- Copyright notice 2
- Disclaimer 2
- Technical support contact information 2
- Trademarks 2
- Uc 8410a series linux software user s manual 2
- Www moxa com support 2
- Advanced configuration of peripherals 3
- Badjusting the time 3
- Bbooting up the uc 8410a lx for the first time 3
- Bcellular dial up mode 3
- Bcellular gps port 3
- Bciphers 3
- Bconfiguring the wireless lan 3
- Bconnecting through the serial console 3
- Bconnecting to a cellular network 3
- Bconnecting to the uc 8410a lx 3
- Bcreating a linux system image using a windows platform 3
- Bcreating a system image in a linux environment 3
- Bcryptographic hardware accelerator 3
- Bcryptographic hash functions 3
- Bdetermining available drive space 3
- Bdiagnosing device and subsystem failures 3
- Bdiagnostic led 3
- Bdisabling the default user account 3
- Bdisabling the usb port 3
- Bfile system resizing 3
- Bnetwork settings 3
- Bntp client 3
- Bpackage management 3
- Bpreparing a bootable sd card 3
- Bquerying the firmware version 3
- Breboot shutdown of the uc 8410a lx 3
- Brestoring the firmware to factory default settings 3
- Brsyslog s configuration file 3
- Bsd slot 3
- Bsecure boot 3
- Bserial ports 3
- Bsoftware architecture 3
- Bsoftware packages 3
- Bssh console 3
- Bsudo mechanism 3
- Bswitching to the root account 3
- Bsyntax of the selector 3
- Bsystem administration 3
- Bupdating system time and rtc 3
- Busb automount 3
- Busb port 3
- Buser account management 3
- Busing cellular modules 3
- Busing wpa_cli 3
- Bwdt watch dog timer 3
- Dial up connections 3
- Disconnecting from a dial up network 3
- Enabling and disabling daemons 3
- Getting started 3
- Programmer s guide 3
- Securing the uc 8410a lx 3
- Setting the time zone 3
- Table of contents 3
- Using cell_mgmt 3
- Using the general debian package 3
- B etc hosts 4
- B etc nsswitch conf 4
- B etc resolv conf 4
- Bappend or delete rules 4
- Bapt cache 4
- Bapt get 4
- Bauto clean apt get cache 4
- Bauto remove installed packages 4
- Bautomating rsync backups 4
- Bcheck a package s change log 4
- Bcheck broken dependencies 4
- Bcheck cache statistics 4
- Bcheck dependencies for specific packages 4
- Bcheck package information 4
- Bclean up disk space 4
- Bcompiling hello c with cross compilation 4
- Bcompiling hello c with native compilation 4
- Bcompletely remove packages 4
- Bcross compilation 4
- Bdefining a policy for chain rules 4
- Bdownload a package without installing 4
- Bdownload and unpack a package 4
- Bdownload only source code of package 4
- Bdownload unpack and compile a package 4
- Bedit servername in apache configuration file 4
- Benabling nat at bootup 4
- Bexecute scheduled commands with cron 4
- Bfind package name and software description 4
- Binstall multiple packages 4
- Binstall or upgrade specific packages 4
- Binstall packages without upgrading 4
- Binstall specific package version 4
- Biptables 4
- Blinux tool chain introduction 4
- Blist all available packages 4
- Bmakefile example 4
- Bmodbus 4
- Bnat example 4
- Bnative compilation 4
- Bnfs network file system 4
- Bobserving and erasing chain rules 4
- Bobtaining help 4
- Bopenssl 4
- Bopenvpn 4
- Bpackage management 4
- Bremove packages without configuration 4
- Brocket fast system for log processing rsyslog 4
- Brsync 4
- Bsearch and build dependencies 4
- Bsetting up the uc 8410a lx as an nfs client 4
- Bstatic key vpn 4
- Btest program developing hello c 4
- Bthe apache web server 4
- Bturning off the leds 4
- Bturning on the leds 4
- Bupdate system packages 4
- Bupgrade specific packages 4
- Busing rsync for external backups 4
- Public key cryptography 4
- Bchoosing an slc sd card 5
- Bsd flash types 5
- Bsetting the sd card to read only mode 5
- Btips for running gnu linux on an sd card 5
- Btweaking gnu linux to write to ram instead of the sd card 5
- Busing a larger capacity sd card 5
- Busing the dd command 5
- Busing the win32 disk imager 5
- Enabling the msata storage device 5
- Introduction 6
- Getting started 7
- Attention 8
- Connecting to the uc 8410a lx 8
- Software architecture 8
- Software packages 8
- Uc 8410a series linux software getting started 8
- Bblinking the leds 9
- Blinux users 9
- Connecting through the serial console 9
- Linux users 9
- Uc 8410a series linux software getting started 9
- User pc1 minicom s 9
- User pc1 yum y install minicom 9
- User pc2 apt get install minicom 9
- Warning 9
- Bwindows users 10
- Main page 10
- Putty ex 10
- Uc 8410a series linux software getting started 10
- User pc1 minicom 10
- Warning 10
- Windows users 10
- Are you sure you want to continue connection yes no 11
- Automatic dial up 11
- Blinux users 11
- Linux users 11
- Passwor 11
- Ssh console 11
- The authenticity of host 192 68 27 192 68 27 can t be established rsa key fingerprint is 8b ee ff 84 41 25 fc cd 2a f2 92 8f cb 1f 6b 2f 11
- Uc 8410a series linux software getting started 11
- User pc1 ssh moxa 192 68 27 11
- Usernam 11
- Attention 12
- Bwindows users 12
- Cellular module 12
- Passwor 12
- Uc 8410a series linux software getting started 12
- Usernam 12
- Windows users 12
- Attention 13
- Bcreating and deleting user accounts 13
- Creating and deleting user accounts 13
- Disabling the default user account 13
- Home test1 13
- Moxa moxa sudo passwd test1 enter new unix password retype new unix password passwd password updated successfully 13
- Moxa moxa sudo useradd m g sudo s bin bash test1 13
- Moxa moxa sudo userdel test1 13
- Root moxa passwd l moxa 13
- Root moxa passwd u moxa 13
- Sudo s 13
- Sudo su c 13
- Switching to the root account 13
- Uc 8410a series linux software getting started 13
- User account management 13
- Userde 13
- Bconfiguring ethernet interfaces 14
- Bmodifying network settings via the serial console 14
- Bsetting a static ip address 14
- Configuring ethernet interfaces 14
- Dynami 14
- Interfaces 5 file used by ifup 8 and ifdown 8 auto eth0 eth1 lo iface lo inet loopback embedded ethernet lan1 iface eth0 inet dhcp iface eth0 inet static address 192 68 27 network 192 68 netmask 255 55 55 broadcast 192 68 55 embedded ethernet lan2 iface eth1 inet static address 192 68 27 network 192 68 netmask 255 55 55 broadcast 192 68 55 14
- Modifying network settings via the serial console 14
- Moxa cd etc network 14
- Moxa moxa cd etc network moxa moxa etc network 14
- Moxa sudo vi interfaces 14
- Network settings 14
- Setting a static ip address 14
- Sim card 14
- The cell_mgmt at command 14
- Uc 8410a series linux software getting started 14
- Adjusting the time 15
- Broadcast 192 68 55 broadcast 192 68 55 15
- Cell_mgm 15
- Cell_mgmt star 15
- Connecting to a cellular network 15
- Embedded ethernet lan1 iface eth0 inet dhcp 15
- Etc qmi network con 15
- Hwclock 15
- Iface eth0 inet dhcp 15
- Iface eth0 inet static address 192 68 27 network 192 68 netmask 255 55 55 15
- Moxa moxa kversion a uc 8410a lx version 1 build 14050416 15
- Moxa moxa kversion uc 8410a lx version 1 15
- Moxa moxa sudo cell_mgmt start 15
- Moxa moxa sudo cell_mgmt start apn internet username moxa password moxa pin 123 15
- Passwor 15
- Querying the firmware version 15
- Setting dynamic ip addresses 15
- System administration 15
- Uc 8410a series linux software getting started 15
- Usernam 15
- Busing the tz variable 16
- Cellular management 16
- Etc rc d rc local 16
- Moxa moxa sudo date 071123192014 mon jul 11 23 19 00 utc 2014 16
- Moxa moxa sudo hwclock w moxa moxa sudo hwclock fri 11 jul 2014 11 19 38 pm utc 1 06862 seconds 16
- Moxa moxa tz est5edt moxa moxa export tz 16
- Setting the time zone 16
- Tz est5edt 2 tz est0edt 3 tz est0 16
- Uc 8410a series linux software getting started 16
- Using the tz variable 16
- Busing the etc localtime file 17
- Determining available drive space 17
- Etc localtim 17
- Moxa moxa df h filesystem size used avail use mounted on rootfs 803m 238m 524m 32 dev root 803m 238m 524m 32 tmpfs 25m 188k 25m 1 run tmpfs 5 m 0 5 m 0 run lock tmpfs 10m 0 10m 0 dev tmpfs 50m 0 50m 0 run shm 17
- Uc 8410a series linux software getting started 17
- Using the etc localtime file 17
- Usr share zoneinfo 17
- Begin init info provides scriptname required start remote_fs syslog required stop remote_fs syslog default start 2 3 4 5 default stop 0 1 6 short description start daemon at boot time description enable service provided by daemon end init info your script 18
- Enabling and disabling daemons 18
- Etc init 18
- Etc init d 18
- Insser 18
- Insserv 18
- Moxa moxa sudo etc init d apache2 start 18
- Moxa moxa sudo etc init d apache2 stop 18
- Moxa moxa sudo insserv d apache2 18
- Moxa moxa sudo insserv r apache2 18
- Uc 8410a series linux software getting started 18
- Moxa moxa cat etc apt sources list deb http debian moxa com debian jessie main deb http ftp us debian org debian jessie main contrib non free deb src http ftp us debian org debian jessie main contrib non free deb http ftp us debian org debian jessie updates main contrib non free deb src http ftp us debian org debian jessie updates main contrib non free deb http security debian org jessie updates main contrib non free deb src http security debian org jessie updates main contrib non free deb http ftp debian org debian jessie backports main contrib non free deb src http ftp debian org debian jessie backports main contrib non free 19
- Package management 19
- Uc 8410a series linux software getting started 19
- Moxa moxa sudo reboot i f d 20
- Moxa moxa sudo shutdown h now 20
- Reboot shutdown of the uc 8410a lx 20
- Uc 8410a series linux software getting started 20
- Advanced configuration of peripherals 21
- Bdisplaying all serial terminal settings 22
- Displaying all serial terminal settings 22
- Moxa moxa sudo setinterface dev ttys0 1 now setting is rs485 2w mode moxa moxa sudo setinterface dev ttys0 uart port 0 is in rs485 2w mode 22
- Rs485 2 22
- Serial ports 22
- Set dev ttys 22
- Setinterfac 22
- Start q stop s susp z rprnt r werase w lnext v flush o min 1 time 0 parenb parodd cs8 hupcl cstopb cread clocal crtscts ignbrk brkint ignpar parmrk inpck istrip inlcr igncr icrnl ixon ixoff iuclc ixany imaxbel iutf8 opost olcuc ocrnl onlcr onocr onlret ofill ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok echonl noflsh xcase tostop echoprt echoctl echoke 22
- Uc 8410a series linux software advanced configuration of peripherals 22
- 68951 hub 2 0 1 unable to enumerate usb device on port 1 23
- Bconfiguring the serial terminal settings 23
- Change to 0 on 1 off 0 1 enter for abort 1 saving environment to eeprom 23
- Configuring the serial terminal settings 23
- Current extend usb port is on change to 0 on 1 off 0 1 enter for abort 23
- Disabling the usb port 23
- Moxa moxa sudo stty 115200 f dev ttys0 23
- Start q stop s susp z rprnt r werase w lnext v flush o min 1 time 0 parenb parodd cs8 hupcl cstopb cread clocal crtscts ignbrk brkint ignpar parmrk inpck istrip inlcr igncr icrnl ixon ixoff iuclc ixany imaxbel iutf8 opost olcuc ocrnl onlcr onocr onlret ofill ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok echonl noflsh xcase tostop echoprt echoctl echoke 23
- Uc 8410a series linux software advanced configuration of peripherals 23
- Usb port 23
- Attention 24
- Media usb 24
- Sd slot 24
- Uc 8410a series linux software advanced configuration of peripherals 24
- Umount media usb 24
- Usb automount 24
- Attention 25
- Benabling write protection 25
- Enabling write protection 25
- Preparing a bootable sd card 25
- Creating a linux system image using a windows platform 26
- Uc 8410a series linux software advanced configuration of peripherals 26
- Uc 8410a series linux software advanced configuration of peripherals 27
- 0 records in 28
- 0 records out 1024458752 bytes 1 gb copied 119 72 s 8 mb s 28
- Booting up the uc 8410a lx for the first time 28
- Creating a system image in a linux environment 28
- File system resizing 28
- Root moxa home work sudo dd if 140 42420 img of dev sdd bs 512k 28
- Uc 8410a series linux software advanced configuration of peripherals 28
- Blinking 29
- Bpush button and led indicators 29
- Green led 29
- On no action 29
- Push button and led indicators 29
- Red led 29
- Uc 8410a series linux software advanced configuration of peripherals 29
- Diagnosing device and subsystem failures 30
- Hardware defects 30
- Uc 8410a series linux software advanced configuration of peripherals 30
- Attention 31
- Bcellular signal strength 31
- Cellular dial up mode 31
- Cellular gps port 31
- Cellular signal strength 31
- Restoring the firmware to factory default settings 31
- Uc 8410a series linux software advanced configuration of peripherals 31
- Using cellular modules 31
- Dial up connections 32
- Disconnecting from a dial up network 32
- Generic 32
- Bconfiguring wpa2 settings 33
- Bexample setting the baud rate 33
- Bpower on off module 33
- Configuring the wireless lan 33
- Configuring wpa2 settings 33
- Iwlist wlan0 scanning 33
- Moxa moxa sudo cell_mgmt power_off 33
- Moxa moxa sudo cell_mgmt power_on 33
- Power on off module 33
- Root moxa iwlist wlan0 scanning wlan0 scan completed cell 01 address 50 67 f0 61 2d 7a protocol 802 1b g essid mis wap 1 mode managed frequency 2 12 ghz channel 1 quality 81 100 signal level 58 dbm noise level 92 dbm encryption key on bit rates 54 mb s 33
- Uc 8410a series linux software advanced configuration of peripherals 33
- Wpa_supplican 33
- Bconnecting to an ap using wep authentication 34
- Bconnecting to an ap using wpa wpa2 psk authentication 34
- Connecting to an ap using wep authentication 34
- Connecting to an ap using wpa wpa2 psk authentication 34
- Ssid 5566 proto wpa wpa2 rsn key_mgmt wpa psk pairwise tkip ccmp group tkip ccmp psk 01234567890 34
- Ssid mis wap 1 bssid 50 67 f0 61 2d 7a key_mgmt none wep_key0 cfee46eed3fa94faeb92348922 34
- Uc 8410a series linux software advanced configuration of peripherals 34
- Wep network 34
- Wpa wpa2 psk network 34
- Bscanning aps and viewing scan results 35
- Root moxa home wpa_cli i wlan0 scan 35
- Scanning aps and viewing scan results 35
- Uc 8410a series linux software advanced configuration of peripherals 35
- Using wpa_cli 35
- Wpa_cli 35
- Wpa_supplican 35
- Wpa_supplicant 35
- Adding wep settings in a configuration file 36
- Badding wep settings in a configuration file 36
- Adding wpa wpa2 settings in a configuration file 37
- Badding wpa wpa2 settings in a configuration file 37
- Root moxa home wpa_cli i wlan0 add_network 1 root moxa home wpa_cli i wlan0 set_network 1 ssid moxa ap ok root moxa home wpa_cli i wlan0 set_network 1 proto wpa wpa2 rsn ok root moxa home wpa_cli i wlan0 set_network 1 key_mgmt wpa psk ok root moxa home wpa_cli i wlan0 set_network 1 pairwise tkip ccmp ok root moxa home wpa_cli i wlan0 set_network 1 group tkip ccmp ok root moxa home wpa_cli i wlan0 set_network 1 psk 01234567890 set_network 1 psk 01234567890 command timed out root moxa home wpa_cli i wlan0 enable_network 1 ok root moxa home wpa_cli iwlan0 select_network 1 ok root moxa home wpa_cli i wlan0 save_config ok 37
- Uc 8410a series linux software advanced configuration of peripherals 37
- Securing the uc 8410a lx 38
- Ciphered 39
- Execute 39
- Plain text 39
- Run time kernel 39
- Secure boot 39
- Sudo mechanism 40
- Using the general debian package 41
- 68 27 putty 42
- Etc cronta 42
- Execute scheduled commands with cron 42
- Minute hour date month dow user command 8 root path to your program 42
- Moxa moxa chmod 755 fixtime sh 42
- Moxa moxa sudo ntpdate 192 68 0 3 6 may 03 55 10 ntpdate4511 step time server 192 68 0 3 offset 78338115 78119 sec moxa moxa sudo hwclock w moxa moxa sudo hwclock tue 06 may 2014 03 56 14 am utc 0 46314 seconds 42
- Ntp client 42
- Uc 8410a series linux software general debian package usage 42
- Updating system time and rtc 42
- Rocket fast system for log processing rsyslog 43
- Rsyslog s configuration file 43
- Uc 8410a series linux software general debian package usage 43
- Module size used by cryptodev 30504 1 44
- Moxa moxa dpkg l grep openssl ii openssl 1 e 2 deb7u7 uc8410a armhf secure socket layer ssl binary and related cryptographic tools on moxa uc8410a 44
- Openssl 44
- Syntax of the selector 44
- Uc 8410a series linux software general debian package usage 44
- Ciphers 45
- Cryptographic hash functions 45
- Moxa moxa sudo openssl speed evp aes 128 cbc sudo password for moxa doing aes 128 cbc for 3s on 16 size blocks 261302 aes 128 cbc s in 0 4s doing aes 128 cbc for 3s on 64 size blocks 222033 aes 128 cbc s in 0 3s doing aes 128 cbc for 3s on 256 size blocks 139516 aes 128 cbc s in 0 6s doing aes 128 cbc for 3s on 1024 size blocks 48524 aes 128 cbc s in 0 9s doing aes 128 cbc for 3s on 8192 size blocks 8126 aes 128 cbc s in 0 0s openssl 1 e 11 feb 2013 built on mon apr 21 06 14 54 utc 2014 options bn 64 32 rc4 ptr char des idx cisc 16 long aes partial idea int blowfish ptr compiler gcc fpic dopenssl_pic dopenssl_threads d_reentrant ddso_dlfcn dhave_dlfcn_h dhave_cryptodev duse_cryptdev_digests march armv7 a wa noexecstack dtermio o3 wall dopenssl_bn_asm_mont dopenssl_bn_asm_gf2m dsha1_asm dsha256_asm dsha512_asm daes_asm dghash_asm the numbers are in 1000s of bytes per second processed type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes aes 128 cbc 29863 9k 109308 5k 223225 0k 552095 9 45
- Public key cryptography 45
- The apache web server 45
- Uc 8410a series linux software general debian package usage 45
- Edit servername in apache configuration file 46
- Moxa moxa sudo adduser sftp sudo password for moxa adding user sftp adding new group sftp 1003 adding new user sftp 1001 with group sftp creating home directory home sftp copying files from etc skel enter new unix password retype new unix password passwd password updated successfully changing the user information for sftp enter the new value or press enter for the default full name room number work phone home phone other is the information correct y n 46
- Moxa moxa sudo etc init d apache2 restart 46
- Moxa moxa sudo mkdir home sftp upload moxa moxa sudo chown root root home sftp moxa moxa sudo chown sftp sftp home sftp upload 46
- Moxa moxa sudo usermod s bin false sftp 46
- Moxa moxa sudo vi etc apache2 apache2 conf 46
- Subsystem sftp internal sftp subsystem sftp usr lib openssh sftp server 46
- Uc 8410a series linux software general debian package usage 46
- 3 00 putty 47
- Etc host 47
- Etc hosts 47
- Etc nsswitch con 47
- Etc nsswitch conf 47
- Etc resolv con 47
- Etc resolv conf 47
- Iptables 47
- Match user sftp chrootdirectory home u forcecommand internal sftp 47
- Moxa moxa sudo cat etc resolv conf resolv conf this file is the resolver configuration file see resolver 5 nameserver 192 68 6 nameserver 168 5 nameserver 140 15 1 nameserver 140 15 36 0 47
- Moxa moxa sudo etc init d sshd restart 47
- Nameserve 47
- Nameserver 168 5 47
- Ntpdate time nist go 47
- Uc 8410a series linux software general debian package usage 47
- Uc 8410a series linux software general debian package usage 48
- Uc 8410a series linux software general debian package usage 49
- Iptables iptables restore and iptables save 50
- Modprobe 50
- Modprobe iptable_filter 50
- Uc 8410a series linux software general debian package usage 50
- Defining a policy for chain rules 51
- Examples 51
- Iptables f iptables x iptables z 51
- Iptables l n 51
- Iptables p input drop iptables p output accept iptables p forward accept modprobe iptable_nat iptables t nat p prerouting accept iptables t nat p output accept iptables t nat p postrouting accept 51
- Iptables t tables fxz 51
- Iptables t tables l n 51
- Iptables t tables p input output forward prerouting output postrouting accept drop 51
- Observing and erasing chain rules 51
- Uc 8410a series linux software general debian package usage 51
- Append or delete rules 52
- Examples 52
- Iptables a input i eth0 p tcp dport 25 j log 52
- Iptables a input i eth0 p tcp s 192 68 24 j accept 52
- Iptables a input i eth0 p tcp s 192 68 4 dport 137 139 j accept 52
- Iptables a input i eth0 p tcp s 192 68 5 j drop 52
- Iptables a input i eth0 p tcp s 192 68 j accept 52
- Iptables a input i lo j accept 52
- Iptables t table ai input output forward io interface p tcp udp icmp all s ip network sport ports d ip network dport ports j accept drop 52
- Modprobe ipt_mac 52
- Modprobe modprobe xt_tcpudp iptables a input i eth0 p tcp dport 21 j drop 52
- Modprobe xt_mac iptables a input i eth0 p all m mac mac source 01 02 03 04 05 06 j drop 52
- Uc 8410a series linux software general debian package usage 52
- Automating rsync backups 53
- Moxa moxa sudo crontab e 53
- Moxa moxa sudo rsync avp directory1 directory2 53
- Moxa moxa sudo rsync avp e ssh directory1 user 192 68 directory2 53
- Uc 8410a series linux software general debian package usage 53
- Using rsync for external backups 53
- Attention 54
- Nat example 54
- Enabling nat at bootup 55
- Nfs network file system 55
- Mkdir p home nfs public 56
- Mount t nfs 192 68 00 home public home nfs public 56
- Mount t nfs nfs_server ip directory mount point 56
- Setting up the uc 8410a lx as an nfs client 56
- Uc 8410a series linux software general debian package usage 56
- Dev tun0 ifconfig 10 10 secret etc openvpn static key 58
- Etc init d openvpn star 58
- Insserv d openvp 58
- Modprobe tun 58
- Moxa moxa etc openvpn sudo openvpn config etc openvpn tun0 conf verb 6 verbose output 58
- Moxa moxa etc openvpn sudo openvpn genkey secret static key 58
- Openvpn 58
- Remote your server org dev tun0 ifconfig 10 10 secret etc openvpn static key 58
- Static key vpn 58
- Uc 8410a series linux software general debian package usage 58
- Apt cach 59
- Apt cache 59
- Apt ge 59
- Apt get 59
- Attention 59
- Find package name and software description 59
- List all available packages 59
- Moxa moxa sudo apt cache pkgnames 59
- Moxa moxa sudo apt cache pkgnames vim 59
- Moxa moxa sudo apt cache search vim 59
- Package management 59
- Uc 8410a series linux software general debian package usage 59
- Bupgrade all software packages 60
- Check cache statistics 60
- Check dependencies for specific packages 60
- Check package information 60
- Instal 60
- Install multiple packages 60
- Install or upgrade specific packages 60
- Install packages without upgrading 60
- Moxa moxa sudo apt cache show vim 60
- Moxa moxa sudo apt cache showpkg vim 60
- Moxa moxa sudo apt cache stats 60
- Moxa moxa sudo apt get install packagename no upgrade 60
- Moxa moxa sudo apt get install vim 60
- Moxa moxa sudo apt get install vim goaccess 60
- Moxa moxa sudo apt get update 60
- Moxa moxa sudo apt get upgrade 60
- No upgrad 60
- Showpk 60
- Uc 8410a series linux software general debian package usage 60
- Update system packages 60
- Upgrad 60
- Upgrade all software packages 60
- Clean up disk space 61
- Compil 61
- Completely remove packages 61
- Download and unpack a package 61
- Download only sourc 61
- Download only source code of package 61
- Download unpack and compile a package 61
- Install specific package version 61
- Moxa moxa sudo apt get clean 61
- Moxa moxa sudo apt get compile source wget 61
- Moxa moxa sudo apt get download only source wget 61
- Moxa moxa sudo apt get install packagename only upgrade 61
- Moxa moxa sudo apt get install wget 1 3 3 deb7u1 61
- Moxa moxa sudo apt get remove purge wget 61
- Moxa moxa sudo apt get remove wget 61
- Moxa moxa sudo apt get source wget 61
- Only upgrad 61
- Remove packages without configuration 61
- Uc 8410a series linux software general debian package usage 61
- Upgrade specific packages 61
- Auto clean apt get cache 62
- Auto remove installed packages 62
- Autoclea 62
- Autoremov 62
- Build de 62
- Changelo 62
- Check a package s change log 62
- Check broken dependencies 62
- Downloa 62
- Download a package without installing 62
- Moxa moxa sudo apt get autoclean 62
- Moxa moxa sudo apt get autoremove wget 62
- Moxa moxa sudo apt get build dep wget 62
- Moxa moxa sudo apt get changelog wget 62
- Moxa moxa sudo apt get check 62
- Moxa moxa sudo apt get download wget 62
- Search and build dependencies 62
- Uc 8410a series linux software general debian package usage 62
- Programmer s guide 63
- Linux tool chain introduction 64
- Moxa moxa sudo apt get install gcc build essential flex bison automake 64
- Moxa moxa sudo apt get update 64
- Native compilation 64
- Uc 8410a series linux software programmer s guide 64
- Cross compilation 65
- Uc 8410a series linux software programmer s guide 65
- Apt get install build essential sudo gcc o hello release hello c sudo strip s hello release 67
- Arm linux gnueabihf gcc o example wall g o2 example c arm linux gnueabihf strip s example arm linux gnueabihf gcc ggdb o example debug example c 67
- Bcross compiling applications and libraries 67
- Compiling hello c with native compilation 67
- Cross compiling applications and libraries 67
- Int main printf hello world n return 0 67
- Moxa moxa man usr local arm linux gnueabihf 4 20130415 share doc gcc linaro arm linux gnueab ihf man man1 arm linux gnueabihf gcc 67
- Obtaining help 67
- Test program developing hello c 67
- Uc 8410a series linux software programmer s guide 67
- Buploading and running the hello program 68
- Cd example hello make 68
- Cd tmp mkdir example cp r mnt cdrom example tmp example 68
- Chmod x hello release hello release 68
- Compiling hello c with cross compilation 68
- Ftp 192 68 27 68
- Moxa moxa hello release hello world 68
- Put hello release uploading hello release to home moxa hello release hello release 68
- Root localhost hello make arm linux gnueabihf gcc o hello release hello c arm linux gnueabihf strip s hello release 68
- Uc 8410a series linux software programmer s guide 68
- Uploading and running the hello program 68
- Brtc real time clock 69
- Cc arm linux gnueabihf gcc cpp arm linux gnueabihf g sources hello c objs sources c o all hello 69
- Cc gcc cpp g 69
- Clean rm f objs hello core gdb 69
- Hello objs cc o ldflags libs 69
- Include linux rtc 69
- Makefile example 69
- Modbus 69
- Moxa moxa hello release hello world 69
- Rtc real time clock 69
- Uc 8410a series linux software programmer s guide 69
- Uc 8410a series linux software programmer s guide 70
- Uc 8410a series linux software programmer s guide 71
- Wdt watch dog timer 71
- Attention 72
- Blinking the leds 72
- Cryptographic hardware accelerator 72
- Diagnostic led 72
- Turning off the leds 72
- Turning on the leds 72
- Uc 8410a series linux software programmer s guide 72
- Example setting the baud rate 73
- Using cell_mgmt 73
- Main page 74
- Uc 8410a series linux software programmer s guide 74
- Automatic dial up 75
- Cell_mgmt reset 75
- Cell_mgmt restart 75
- Cell_mgmt start 75
- Cell_mgmt start apn apn username user password pass pin pin_code 75
- Cell_mgmt stop 75
- Cellular module 75
- Uc 8410a series linux software programmer s guide 75
- Cell_mgmt pin_protection pin pin2 enable disable current_pin 77
- Cell_mgmt set_pin pin 77
- Cell_mgmt sim_status 77
- Disable pin protection 77
- Enable pin protection 77
- Sim card 77
- The cell_mgmt at command 77
- Uc 8410a series linux software programmer s guide 77
- Cell_mgmt version 78
- Cellular management 78
- Uc 8410a series linux software programmer s guide 78
- A extending the lifetime of the sd card 79
- Extending the lifetime of the sd card 79
- Bcomparison table for flash types 80
- Bmulti level cell mlc 80
- Boverview 80
- Bsingle level cell slc 80
- Btriple level cell tlc 80
- Choosing an slc sd card 80
- Comparison table for flash types 80
- Creating a file system on the msata drive 80
- Creating a new partition 80
- Deleting an existing partition 80
- Mounting the msata drive 80
- Multi level cell mlc 80
- Overview 80
- Sd flash types 80
- Single level cell slc 80
- Tips for running gnu linux on an sd card 80
- Triple level cell tlc 80
- Uc 8410a series linux software extending the lifetime of the sd card 80
- Using a larger capacity sd card 80
- Filesystem size used avail use mounted on 81
- Setting the sd card to read only mode 81
- Tmpfs tmp tmpfs defaults noatime nosuid size 100m 0 0 tmpfs var tmp tmpfs defaults noatime nosuid size 30m 0 0 tmpfs var log tmpfs defaults noatime nosuid mode 0755 size 100m 0 0 tmpfs var run tmpfs defaults noatime nosuid mode 0755 size 2m 0 0 81
- Tweaking gnu linux to write to ram instead of the sd card 81
- Uc 8410a series linux software extending the lifetime of the sd card 81
- B copying images on an sd card 82
- Copying images on an sd card 82
- Uc 8410a series linux software copying images on an sd card 83
- Using the win32 disk imager 83
- Dd if dev sdd of home backup img bs 512k 84
- Enabling the msata storage device 84
- Fdisk dev sd 84
- Fdisk dev sda command m for help m help dos mbr a toggle a bootable flag b edit nested bsd disklabel c toggle the dos compatibility flag generic d delete a partition 84
- Uc 8410a series linux software copying images on an sd card 84
- Using the dd command 84
- Creating a new partition 85
- Deleting an existing partition 85
- Creating a file system on the msata drive 86
- Mount dev sda1 86
- Mount dev sda1 mnt 86
- Mounting the msata drive 86
- Uc 8410a series linux software copying images on an sd card 86
- Umount mnt 86
- Unmounting the msata drive 86
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