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Category Archives: Uncategorized
Tcl/Tk
Format Time of File Modification to use in a Shell Script
$ ls -l --full-time make.sh
-rw-------+ 1 AndreasB mkpasswd 5772 2015-02-12 11:35:54.323703100 +0100 make.sh
$ perl -MPOSIX=strftime -le 'print strftime("%Y%m%d", localtime((stat shift)[9]))' make.sh
20150212
$ stat make.sh
File: 'make.sh'
Size: 5772 Blocks: 8 IO Block: 65536 regular file
Device: 7a51ec0fh/2052189199d Inode: 12384898975415113 Links: 1
Access: (0600/-rw-------) Uid: ( 400/AndreasB) Gid: ( 401/mkpasswd)
Access: 2015-02-12 11:35:54.323703100 +0100
Modify: 2015-02-12 11:35:54.323703100 +0100
Change: 2015-02-13 14:48:31.352376000 +0100
Birth: 2014-11-26 17:16:45.173977800 +0100
$ stat -c %y make.sh
2015-02-12 11:35:54.323703100 +0100
$ stat -c %x make.sh
2015-02-12 11:35:54.323703100 +0100
file date format
HowTo Format Date For Display or Use In a Shell Script
Lasersaur
- Lasersaur CAD Models
- MechParts
- Mount Panels
- DriveBoard PCB
DriveBoard
Lasersaur Software
BeagleBone Setup
LaserSaur Photos
github: LaserSaur Manual
Wiki
FabLab Winti: Laser Cutter
HappyLab: Laser Cutter
FAQ
Lasersaur and is it right for you?
buildlog
Why Are My Laser Cut Edges Not Straight?
Getting More Power and Cutting Accuracy Out of Your Home Built Laser System
Blackhole 60W Laser
Home Built 40W CNC Laser
Home Built 40W CNC Laser
Home Built 40W CNC Laser
axFord / axCut
GNU sed by Example
Sed by Example, Part 1 – Get to know the powerful UNIX editor
Sed by Example, Part 2 – How to further take advantage of the UNIX text editor
Sed by Example, Part 3 – Taking it to the next level: Data crunching, sed style
Linux: Using sed to insert lines before or after a match
How can I replace text after a specific word using sed?
Remove line containing certain string and the following line
Jenkins
Installing Jenkins on Ubuntu
How To Install and Use Jenkins on Ubuntu 12.04
Security and Resetting User
Disable security
Reset Jenkins Configuration Command Line
... <useSecurity>true</useSecurity> ...
Windows
C:\Program Files (x86)\Jenkins\jobs\project1\workspace c:\cygwin\bin\mintty --hold always --exec /cygdrive/c/path/to/bash/script.sh
How to make Cygwin the default shell for Jenkins?
Can I use cygwin to script a hudson build step?
Jenkins on windows with cygwin
ISP Hosting of Virtual Servers with FreeBSD
HQhost NQ-VPS-4096 $30
HQHost NQ-FBSD-5 $40
HQHost NQ-VDS-5 (install any OS) $40
BSD VM
netcup
JCI JonhCompanies, Inc $35
Interoute 59€
RootBSD
Tier1
Verio
Berklix
IPv6 in FreeBSD/Linux
Linux Daemon Dienste
radvd
Router Advertisement Daemon (radvd) (wenn die Clients automatisch konfiguriert werden sollen)
Wikipedia: Router Advertisement Daemon (radvd), implements link-local advertisements of IPv6 router addresses and IPv6 routing prefixes using the Neighbor Discovery Protocol (NDP) => stateless autoconfiguration
NAT64
Wikipedia: NAT64
TAYGA
NAT64 Kernel Module
github.com/fln/nat64
link local fe80:: global unicase 2001: /proc/sys/net/ipv6/conf all default eth0 eth1 lo /proc/sys/net/ipv6/conf/all/forwarding => 1 well-known prefix, z.B. NAT64 64:ff9b::/96 ALG Application Layer Gateway RR Resource Record
FreeBSD Subversion
FreeBSD VLAN
FreeBSD VLAN Configuration
FreeBSD – Adding VLAN Tagged subinterface using ifconfig
struct vlanreq {
char vlr_parent[IFNAMSIZ];
u_short vlr_tag;
};
Step 1: create the vlan subinterface
# ifconfig vlan122 create
Step 2: assign it a vlan ID and vlan device:
# ifconfig vlan122 vlan 122 vlandev em0
Step 3: check the vlan subinterface:
# ifconfig vlan122
vlan122: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:07:e9:a5:9b:fa
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
vlan: 122 parent interface: em0
Step 4: assign ip address:
# ifconfig vlan122 10.1.122.1/24
# ifconfig vlan122 up
# ifconfig vlan122
vlan122: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:07:e9:a5:9b:fa
inet 10.1.122.1 netmask 0xffffff00 broadcast 10.1.122.255
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
vlan: 122 parent interface: em0
Or edit rc.conf:
cloned_interfaces="vlan0"
ifconfig_vlan0="inet x.x.x.x netmask y.y.y.y vlan 2 vlandev em0"
FreeBSD Manual Pages
getifaddrs — get interface addresses
ether_ntohost — Ethernet address conversion and lookup routines
FreeBSD Implementation
DEC Direct Data Link Interface (DLI)
How to know ip address for interfaces in c
Polling interface names via SIOCGIFCONF in Linux
Broadcasting and Determining Network Configuration
FreeBSD: network interface information
lo0 not in ioctl( SIOCGIFCONF )
SOLVED: lo0 not in ioctl( SIOCGIFCONF )
How to get IPv6 address using getifaddrs and which version of glibc supports
How can I enumerate the list of network devices or interfaces in C or C++ in FreeBSD? [duplicate]
Re: ioctl programming probs
Linux:
struct ifreq {
char ifr_name[IFNAMSIZ]; /* Interface name */
union {
struct sockaddr ifr_addr;
struct sockaddr ifr_dstaddr;
struct sockaddr ifr_broadaddr;
struct sockaddr ifr_netmask;
struct sockaddr ifr_hwaddr;
short ifr_flags;
int ifr_ifindex;
int ifr_metric;
int ifr_mtu;
struct ifmap ifr_map;
char ifr_slave[IFNAMSIZ];
char ifr_newname[IFNAMSIZ];
char *ifr_data;
};
};
struct ifconf {
int ifc_len; /* size of buffer */
union {
char *ifc_buf; /* buffer address */
struct ifreq *ifc_req; /* array of structures */
};
};
FreeBSD:
/*
* Length of interface external name, including terminating '\0'.
* Note: this is the same size as a generic device's external name.
*/
#define IF_NAMESIZE 16
#if __BSD_VISIBLE
#define IFNAMSIZ IF_NAMESIZE
#define IF_MAXUNIT 0x7fff /* historical value */
#endif
#if __BSD_VISIBLE
/*
* Interface request structure used for socket
* ioctl's. All interface ioctl's must have parameter
* definitions which begin with ifr_name. The
* remainder may be interface specific.
*/
struct ifreq {
char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
union {
struct sockaddr ifru_addr;
struct sockaddr ifru_dstaddr;
struct sockaddr ifru_broadaddr;
struct ifreq_buffer ifru_buffer;
short ifru_flags[2];
short ifru_index;
int ifru_jid;
int ifru_metric;
int ifru_mtu;
int ifru_phys;
int ifru_media;
caddr_t ifru_data;
int ifru_cap[2];
u_int ifru_fib;
} ifr_ifru;
#define ifr_addr ifr_ifru.ifru_addr /* address */
#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
#define ifr_buffer ifr_ifru.ifru_buffer /* user supplied buffer with its length */
#define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */
#define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */
#define ifr_jid ifr_ifru.ifru_jid /* jail/vnet */
#define ifr_metric ifr_ifru.ifru_metric /* metric */
#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
#define ifr_phys ifr_ifru.ifru_phys /* physical wire */
#define ifr_media ifr_ifru.ifru_media /* physical media */
#define ifr_data ifr_ifru.ifru_data /* for use by interface */
#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */
#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */
#define ifr_index ifr_ifru.ifru_index /* interface index */
#define ifr_fib ifr_ifru.ifru_fib /* interface fib */
};
/*
* Structure used in SIOCGIFCONF request.
* Used to retrieve interface configuration
* for machine (useful for programs which
* must know all networks accessible).
*/
struct ifconf {
int ifc_len; /* size of associated buffer */
union {
caddr_t ifcu_buf;
struct ifreq *ifcu_req;
} ifc_ifcu;
#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
};
/*-
* Interface flags are of two types: network stack owned flags, and driver
* owned flags. Historically, these values were stored in the same ifnet
* flags field, but with the advent of fine-grained locking, they have been
* broken out such that the network stack is responsible for synchronizing
* the stack-owned fields, and the device driver the device-owned fields.
* Both halves can perform lockless reads of the other half's field, subject
* to accepting the involved races.
*
* Both sets of flags come from the same number space, and should not be
* permitted to conflict, as they are exposed to user space via a single
* field.
*
* The following symbols identify read and write requirements for fields:
*
* (i) if_flags field set by device driver before attach, read-only there
* after.
* (n) if_flags field written only by the network stack, read by either the
* stack or driver.
* (d) if_drv_flags field written only by the device driver, read by either
* the stack or driver.
*/
#define IFF_UP 0x1 /* (n) interface is up */
#define IFF_BROADCAST 0x2 /* (i) broadcast address valid */
#define IFF_DEBUG 0x4 /* (n) turn on debugging */
#define IFF_LOOPBACK 0x8 /* (i) is a loopback net */
#define IFF_POINTOPOINT 0x10 /* (i) is a point-to-point link */
#define IFF_SMART 0x20 /* (i) interface manages own routes */
#define IFF_DRV_RUNNING 0x40 /* (d) resources allocated */
#define IFF_NOARP 0x80 /* (n) no address resolution protocol */
#define IFF_PROMISC 0x100 /* (n) receive all packets */
#define IFF_ALLMULTI 0x200 /* (n) receive all multicast packets */
#define IFF_DRV_OACTIVE 0x400 /* (d) tx hardware queue is full */
#define IFF_SIMPLEX 0x800 /* (i) can't hear own transmissions */
#define IFF_LINK0 0x1000 /* per link layer defined bit */
#define IFF_LINK1 0x2000 /* per link layer defined bit */
#define IFF_LINK2 0x4000 /* per link layer defined bit */
#define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */
#define IFF_MULTICAST 0x8000 /* (i) supports multicast */
#define IFF_CANTCONFIG 0x10000 /* (i) unconfigurable using ioctl(2) */
#define IFF_PPROMISC 0x20000 /* (n) user-requested promisc mode */
#define IFF_MONITOR 0x40000 /* (n) user-requested monitor mode */
#define IFF_STATICARP 0x80000 /* (n) static ARP */
#define IFF_DYING 0x200000 /* (n) interface is winding down */
#define IFF_RENAMING 0x400000 /* (n) interface is being renamed */
/* Throughout this file, IP addresses are expected to be in
* the same byte order as in IP_PCB. */
/** must be the maximum of all used hardware address lengths
across all types of interfaces in use */
#define NETIF_MAX_HWADDR_LEN 6U
/** Whether the network interface is 'up'. This is
* a software flag used to control whether this network
* interface is enabled and processes traffic.
* It is set by the startup code (for static IP configuration) or
* by dhcp/autoip when an address has been assigned.
*/
#define NETIF_FLAG_UP 0x01U
/** If set, the netif has broadcast capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_BROADCAST 0x02U
/** If set, the netif is one end of a point-to-point connection.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_POINTTOPOINT 0x04U
/** If set, the interface is configured using DHCP.
* Set by the DHCP code when starting or stopping DHCP. */
#define NETIF_FLAG_DHCP 0x08U
/** If set, the interface has an active link
* (set by the network interface driver).
* Either set by the netif driver in its init function (if the link
* is up at that time) or at a later point once the link comes up
* (if link detection is supported by the hardware). */
#define NETIF_FLAG_LINK_UP 0x10U
/** If set, the netif is an ethernet device using ARP.
* Set by the netif driver in its init function.
* Used to check input packet types and use of DHCP. */
#define NETIF_FLAG_ETHARP 0x20U
/** If set, the netif is an ethernet device. It might not use
* ARP or TCP/IP if it is used for PPPoE only.
*/
#define NETIF_FLAG_ETHERNET 0x40U
/** If set, the netif has IGMP capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_IGMP 0x80U
/** Generic data structure used for all lwIP network interfaces.
* The following fields should be filled in by the initialization
* function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
struct netif {
/** pointer to next in linked list */
struct netif *next;
/** IP address configuration in network byte order */
ip_addr_t ip_addr;
ip_addr_t netmask;
ip_addr_t gw;
/*** LWIP_IPV6 ***********************************************************/
/** Array of IPv6 addresses for this netif. */
ip6_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES];
/** The state of each IPv6 address (Tentative, Preferred, etc).
* @see ip6_addr.h */
u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES];
/** This function is called by the network device driver
* to pass a packet up the TCP/IP stack. */
netif_input_fn input;
/** This function is called by the IP module when it wants
* to send a packet on the interface. This function typically
* first resolves the hardware address, then sends the packet. */
netif_output_fn output;
/** This function is called by the ARP module when it wants
* to send a packet on the interface. This function outputs
* the pbuf as-is on the link medium. */
netif_linkoutput_fn linkoutput;
/*** LWIP_IPV6 ***********************************************************/
/** This function is called by the IPv6 module when it wants
* to send a packet on the interface. This function typically
* first resolves the hardware address, then sends the packet. */
netif_output_ip6_fn output_ip6;
/*** LWIP_NETIF_STATUS_CALLBACK ******************************************/
/** This function is called when the netif state is set to up or down */
netif_status_callback_fn status_callback;
/*** LWIP_NETIF_LINK_CALLBACK ********************************************/
/** This function is called when the netif link is set to up or down */
netif_status_callback_fn link_callback;
/*** LWIP_NETIF_REMOVE_CALLBACK ******************************************/
/** This function is called when the netif has been removed */
netif_status_callback_fn remove_callback;
/** This field can be set by the device driver and could point
* to state information for the device. */
void *state;
/*** LWIP_DHCP ***********************************************************/
/** the DHCP client state information for this netif */
struct dhcp *dhcp;
/*** LWIP_AUTOIP *********************************************************/
/** the AutoIP client state information for this netif */
struct autoip *autoip;
/*** LWIP_IPV6_AUTOCONFIG ************************************************/
/** is this netif enabled for IPv6 autoconfiguration */
u8_t ip6_autoconfig_enabled;
/*** LWIP_IPV6_SEND_ROUTER_SOLICIT ***************************************/
/** Number of Router Solicitation messages that remain to be sent. */
u8_t rs_count;
/*** LWIP_IPV6_DHCP6 *****************************************************/
/** the DHCPv6 client state information for this netif */
struct dhcp6 *dhcp6;
/*** LWIP_NETIF_HOSTNAME *************************************************/
/* the hostname for this netif, NULL is a valid value */
char* hostname;
/** maximum transfer unit (in bytes) */
u16_t mtu;
/** number of bytes used in hwaddr */
u8_t hwaddr_len;
/** link level hardware address of this interface */
u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
/** flags (see NETIF_FLAG_ above) */
u8_t flags;
/** descriptive abbreviation */
char name[2];
/** number of this interface */
u8_t num;
/*** LWIP_SNMP ***********************************************************/
/** link type (from "snmp_ifType" enum from snmp.h) */
u8_t link_type;
/** (estimate) link speed */
u32_t link_speed;
/** timestamp at last change made (up/down) */
u32_t ts;
/** counters */
u32_t ifinoctets;
u32_t ifinucastpkts;
u32_t ifinnucastpkts;
u32_t ifindiscards;
u32_t ifoutoctets;
u32_t ifoutucastpkts;
u32_t ifoutnucastpkts;
u32_t ifoutdiscards;
/*** LWIP_IGMP ***********************************************************/
/** This function could be called to add or delete a entry in the multicast
* filter table of the ethernet MAC.*/
netif_igmp_mac_filter_fn igmp_mac_filter;
/*** LWIP_IPV6 && LWIP_IPV6_MLD ******************************************/
/** This function could be called to add or delete an entry in the IPv6 multicast
* filter table of the ethernet MAC. */
netif_mld_mac_filter_fn mld_mac_filter;
/*** LWIP_NETIF_HWADDRHINT ***********************************************/
u8_t *addr_hint;
/*** ENABLE_LOOPBACK *****************************************************/
/* List of packets to be queued for ourselves. */
struct pbuf *loop_first;
struct pbuf *loop_last;
u16_t loop_cnt_current;
};
#define SIOCSIFPHYADDR _IOW('i', 70, struct ifaliasreq) /* set gif addres */
#define SIOCGIFPSRCADDR _IOWR('i', 71, struct ifreq) /* get gif psrc addr */
#define SIOCGIFPDSTADDR _IOWR('i', 72, struct ifreq) /* get gif pdst addr */
struct nd_ifinfo {
u_int32_t linkmtu; /* LinkMTU */
u_int32_t maxmtu; /* Upper bound of LinkMTU */
u_int32_t basereachable; /* BaseReachableTime */
u_int32_t reachable; /* Reachable Time */
u_int32_t retrans; /* Retrans Timer */
u_int32_t flags; /* Flags */
int recalctm; /* BaseReacable re-calculation timer */
u_int8_t chlim; /* CurHopLimit */
u_int8_t initialized; /* Flag to see the entry is initialized */
/* the following 3 members are for privacy extension for addrconf */
u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
u_int8_t randomid[8]; /* current random ID */
};
struct in6_ndireq {
char ifname[IFNAMSIZ];
struct nd_ifinfo ndi;
};
struct in6_ndireq nd;
memset(&nd, 0, sizeof(nd));
strncpy(nd.ifname, ifr.ifr_name, sizeof(nd.ifname));
error = ioctl(s, SIOCGIFINFO_IN6, &nd);
/*
* Structure of a Link-Level sockaddr:
*/
struct sockaddr_dl {
u_char sdl_len; /* Total length of sockaddr */
u_char sdl_family; /* AF_LINK */
u_short sdl_index; /* if != 0, system given index for interface */
u_char sdl_type; /* interface type */
u_char sdl_nlen; /* interface name length, no trailing 0 reqd. */
u_char sdl_alen; /* link level address length */
u_char sdl_slen; /* link layer selector length */
char sdl_data[46]; /* minimum work area, can be larger;
contains both if name and ll address */
};
$2 = {sdl_len = 56 '8', sdl_family = 18 (AF_LINK), sdl_index = 1, sdl_type = 0x06 (IFT_ETHER), sdl_nlen = 3, sdl_alen = 6, sdl_slen = 0, sdl_data = "vr0", ...}
$13 = {sdl_len = 56 '8', sdl_family = 18 (AF_LINK), sdl_index = 2, sdl_type = 0x06 (IFT_ETHER), sdl_nlen = 3, sdl_alen = 6, sdl_slen = 0, sdl_data = "vr1", ...}
$14 = {sdl_len = 56 '8', sdl_family = 18 (AF_LINK), sdl_index = 3, sdl_type = 0x06 (IFT_ETHER), sdl_nlen = 3, sdl_alen = 6, sdl_slen = 0, sdl_data = "vr2", ...}
$15 = {sdl_len = 56 '8', sdl_family = 18 (AF_LINK), sdl_index = 4, sdl_type = 0x18 (IFT_LOOP), sdl_nlen = 3, sdl_alen = 0, sdl_slen = 0, sdl_data = "lo0", ...}
$16 = {sdl_len = 56 '8', sdl_family = 18 (AF_LINK), sdl_index = 5, sdl_type = 0xf6 (IFT_PFLOG), sdl_nlen = 6, sdl_alen = 0, sdl_slen = 0, sdl_data = "pflog0", ...}
sdl->sdl_nlen /* interface name length, no trailing 0 reqd. */
sdl->sdl_alen /* link level address length */
sdl->sdl_type:
/usr/include/net/if_types.h
#define IFT_ETHER 0x6 /* Ethernet CSMA/CD */
#define IFT_LOOP 0x18 /* loopback */
#define IFT_PFLOG 0xf6 /* PF firewall */
#define ETH_ALEN 6 /* Octets in one ethernet addr */
Linux:
#define ETHER_ADDR_LEN ETH_ALEN /* size of ethernet addr */
/* This is a name for the 48 bit ethernet address available on many
systems. */
struct ether_addr
{
u_int8_t ether_addr_octet[ETH_ALEN];
} __attribute__ ((__packed__));
FreeBSD:
/*
* The number of bytes in an ethernet (MAC) address.
*/
#define ETHER_ADDR_LEN 6
/*
* Structure of a 48-bit Ethernet address.
*/
struct ether_addr {
u_char octet[ETHER_ADDR_LEN];
};
Do SIOCGIFNUM ioctl to find the number of interfaces
/*
* Do SIOCGIFNUM ioctl to find the number of interfaces
*
* Allocate space for number of interfaces found
*
* Do SIOCGIFCONF with allocated buffer
*
*/
if (ioctl(s, SIOCGIFNUM, (char *)&numifs) == -1) {
numifs = MAXIFS;
}
bufsize = numifs * sizeof(struct ifreq);
reqbuf = (struct ifreq *) malloc(bufsize);
if (reqbuf == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
ifc.ifc_buf = (caddr_t)&reqbuf[0];
ifc.ifc_len = bufsize;
if (ioctl(s, SIOCGIFCONF, (char *)&ifc) == -1) {
perror("ioctl(SIOCGIFCONF)");
exit(1);
}
ioctl(sockfd, SIOCGIFCONF, &ifc)
Remote Desktop Protocol (RDP) with Ubuntu and XRDP
xrdp – an open-source Remote Desktop Protocol server
github.com/neutrinolabs/xrdp
Xrdp
Tutorials
Using Windows RDP to Access your Ubuntu Instance
How to use xRDP for remote access to Ubuntu 14.04
Ubuntu 14.04 – How to install xrdp in Ubuntu 14.04
XRDP – Quick fix – Custom XRDP install on Ubuntu 15.04 using systemd
$ sudo apt-get install ubuntu-desktop $ sudo apt-get install xrdp $ sudo /etc/init.d/xrdp start $ sudo adduser USERNAME
$ service xrdp restart ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to manage system services or units. Multiple identities can be used for authentication: 1. Andreas Bachmann,,, (andreas) 2. rdpuser Choose identity to authenticate as (1-2): Failed to restart xrdp.service: Connection timed out $ sudo service xrdp restart A dependency job for xrdp.service failed. See 'journalctl -xe' for details. # /etc/init.d/xrdp start [....] Starting xrdp (via systemctl): xrdp.serviceA dependency job for xrdp.service failed. See 'journalctl -xe' for details. failed! # systemctl enable xrdp-sesman.service Created symlink from /etc/systemd/system/multi-user.target.wants/xrdp-sesman.service to /lib/systemd/system/xrdp-sesman.service. # systemctl enable xrdp.service Synchronizing state for xrdp.service with sysvinit using update-rc.d... Executing /usr/sbin/update-rc.d xrdp defaults Executing /usr/sbin/update-rc.d xrdp enable
# cat /lib/systemd/system/xrdp.service [Unit] Description=xrdp daemon Requires=xrdp-sesman.service After=syslog.target network.target xrdp-sesman.service [Service] Type=forking PIDFile=/var/run/xrdp.pid EnvironmentFile=/etc/sysconfig/xrdp ExecStart=/usr/sbin/xrdp $XRDP_OPTIONS ExecStop=/usr/sbin/xrdp $XRDP_OPTIONS --kill [Install] WantedBy=multi-user.target
# cat /lib/systemd/system/xrdp-sesman.service [Unit] Description=xrdp session manager After=syslog.target network.target StopWhenUnneeded=true [Service] Type=forking PIDFile=/var/run/xrdp-sesman.pid EnvironmentFile=/etc/sysconfig/xrdp ExecStart=/usr/sbin/xrdp-sesman $SESMAN_OPTIONS ExecStop=/usr/sbin/xrdp-sesman $SESMAN_OPTIONS --kill [Install] WantedBy=multi-user.target
### Change in /lib/systemd/system/xrdp.service and /lib/systemd/system/xrdp-sesman.service: ### /etc/sysconfig/xrdp -> /etc/default/xrdp # service xrdp start Warning: xrdp.service changed on disk. Run 'systemctl daemon-reload' to reload units. A dependency job for xrdp.service failed. See 'journalctl -xe' for details. # systemctl daemon-reload # service xrdp start --> Hangs?! # /usr/sbin/xrdp # /usr/sbin/xrdp-sesman --> Works!
# /usr/sbin/xrdp running in daemon mode with no access to pid files, quitting # sudo mkdir /var/run/xrdp # sudo chown xrdp:xrdp /var/run/xrdp
VNC (Virtual Network Computing) with TightVNC and vino-server
TightVNC
TigerVNC
What do I need for remotely accessing my Ubuntu 14.04 machine?
Remote desktop Sharing in Ubuntu 14.04
Cannot connect to vino-server from Windows anymore
Ubuntu Users: VNC
Ubuntu: VNC Server
$ sudo apt-get install vino $ /usr/lib/vino/vino-server
22/01/2015 11:35:19 [IPv4] Got connection from client andreas.XXX.com 22/01/2015 11:35:19 other clients: 22/01/2015 11:35:19 Client Protocol Version 3.7 22/01/2015 11:35:19 Advertising security type 18 22/01/2015 11:35:20 Client andreas.XXX.com gone
$ gsettings set org.gnome.Vino require-encryption false
22/01/2015 11:43:38 [IPv4] Got connection from client andreas.XXX.com 22/01/2015 11:43:38 other clients: 22/01/2015 11:43:38 Client Protocol Version 3.7 22/01/2015 11:43:38 Advertising security type 18 22/01/2015 11:43:38 Advertising security type 2 22/01/2015 11:43:38 Client returned security type 2