How to generate a pair of RSA private and public key in Go lang? Go lang has a rich set of standard libraries. Using Go’s standard libraries, we can generate RSA private and Public keys. The Crypto standard libraries in Go lang Go lang standard libraries has a rich set of cryptography functions. Here are
Read more
Tag: Windows
How to Install Wine 32-bit on CentOS 8
Posted onSince version 7, RHEL and CentOS only have 64 bit versions. For some reasons, it’s better to run many Windows applications under 32 bit wine. Like How to Install Wine 32-bit on CentOS 7, this post introduce how to install 32-bit Wine on CentOS 8. Most of the mechanisms are similar yet there are differences.
Read more
Synchronizing Thunderbird Calendar and Address Book with Office365 Exchange Online using ActiveSync
Posted onThunderbird is a nice email client available on Linux and Windows. With the Lightning plugin, Thunderbird can support calendar functions well. Exchange is a widely used email and calendar/address book service software. Office 365 provide the cloud version of Exchange named Office 365 Exchange Online. Although Exchange Online provide IMAP for synchronizing emails, it provides
Read more
How to Change Windows User Name on Windows 10 Using Computer Management
Posted onThe Windows user name can be changed according to the user’s needs and requirement. The Windows 10 Windows Settings tool interface keeps changing after updates. It is a little hard to find out the tool to do the user name changing. One way to change Windows user name is to do it through the Computer
Read more
Handling Sparse Files on Linux
Posted onSparse files are common in Linux/Unix and are also supported by Windows (e.g. NTFS) and macOSes (e.g. HFS+). Sparse files uses storage efficiently when the files have a lot of holes (contiguous ranges of bytes having the value of zero) by storing only metadata for the holes instead of using real disk blocks. They are
Read more
How to Add a File Based Swap for Linux
Posted onWe may want to add some swap space for a Linux box while only find that all disk space is partitioned and mounted. Some partition has large available free space. For such cases, we may not want to change the partition allocation. The solution may be to add a file based swap for Linux as
Read more
diff alternative on Windows to find differences between 2 files?
Posted ondiff on Linux is a very handy tool. Any good diff alternatives on Windows to find differences between 2 files? A GUI program will be better on Windows. I would recommend meld for Windows users. Meld is a visual diff and merge tool open source software. meld is available on Linux, Windows and Mac OS
Read more
What is the difference between work conserving I/O scheduler and non-work conserving I/O scheduler?
Posted onWhat is the difference between work conserving I/O scheduler and non-work conserving I/O scheduler? In a work-conserving mode, the scheduler must choose one of the pending requests, if any, to dispatch, even if the pending requests are far away from the current disk head position. The rationale for non-work-conserving schedulers, such as the anticipatory scheduler
Read more
How to check interrupts lively in your systems?
Posted onI need to see what kind of interrupts are handled by which CPU. Please run command: # cat /proc/interrupts or you can execute $ watch -n1 “cat /proc/interrupts” to watch interrupts every 1 second. See [1] [2] for more details. References: [1] https://stackoverflow.com/questions/28301875/how-to-observe-interrupts-in-windows-or-linux-ubuntu-14-04 [2] http://www.linuxjournal.com/content/watch-live-interrupts
How to use encfs on Windows 10?
Posted onI am happy using encfs on Linux. But how to use encfs on Windows 10? I would suggest EncFS MP. It support Encfs on Windows. Features of EncFSMP: Mounts EncFS folders on Windows and OS X Can create, edit, export and change the password of EncFS folders Is 100% compatible with EncFS 1.7.4 on Linux
Read more
Is Samba sync or async for writes?
Posted onBeing sync or async for data writing of a file system or a network file system affects the data integrity. Is Samba sync or async for writes? In summary, Samba writes are async by default. But the behavior is configurable. Here is a great summary by Eric Roseme. Samba defaults to asynchronous writes. smbd writes
Read more
How to save the output of screen windows to a file on Linux?
Posted onIn the screen, copying the history of the window output is quite hard. How to save the screen easily to a file? First type Ctrl + A then : to get to command mode. In the command mode, execute hardcopy -h /path/to/file screen will save the window output to /path/to/file.
Where are the Start menu files in Windows 10?
Posted onWhere are the Start menu files actually stored in Windows 10? There are two folders for the startup menu for Windows: Per-user Start menu: %userprofile%AppDataRoamingMicrosoftWindowsStart Menu All user’s Start menu: %programdata%MicrosoftWindowsStart Menu
Where are the data of metro apps stored in Windows 10?
Posted onWhere are the files for data of the moden metro apps stored in Windows 10? The files for data of the metro apps in Windows is stored under %userprofile%AppDataLocalPackages You can enter the string in the Explore and hit enter to open the directory directly.
how to use pc internet of window8 on iphone 4s via usb
Posted onhow to use pc internet on iPhone 4s wia usb cable, pc is of window 8 and in network setting its not showing of connection of I phones network I ever wrote a tutorial at http://www.systutorials.com/136003/iphone-connecting-internet-using-windows-pc-network-through-usb-cable/ . But please be aware that it worked only on specific OS combinations. So, I am not sure whether
Read more
Which ssh client on iOS works the best for socks?
Posted onThere are good ssh clients on Windows and, needless to mention, Linux. But which ssh client on iOS for iPhone/iPad works the best for socks? You may try vSSH. It is the best SSH client app I found on iOS. vSSH supports tunneling/port forwarding: you can setup port tunneling in the “Port forwarding” section of
Read more
How to install Windows from USB drive?
Posted onI have downloaded the iso file of Windows 10 installation disk from https://www.microsoft.com/en-us/software-download/windows10ISO . But I do not have a DVD R/W drive. Whether and how to install Windows from a USB drive? You can use the Windows USB/DVD Download Tool to make a USB from the Windows ISO. Download and install the Windows USB/DVD
Read more
Firefox: how to sync bookmarks saved on iOS devices to Firefox on PC?
Posted onFirefox on iOS can view bookmarks from PC. But how to sync the bookmarks made on iOS to PC? It seems the bookmarks made in Firefox on iPhone is local only. No, you can’t yet. Bookmarks saved on your iOS devices will not sync to your PC at current (by Nov. 25, 2015) version of
Read more
How to keep master thesis safety and availability on Windows
Posted onWhen you write your master thesis (in Chinese) on windows, you may have following worries. a, Be afraid your master thesis is lost (or can not be accessed) when hard disk/udisk is broken (or something other viruses). b, Keep master thesis availability (7×24) and safety. c, Do not want anyone else to access it before
Read more
Free VNC server software on Windows
Posted onRealVNC only gives free version to personal usage of their server software while it limits the functions. Could you suggest some good free VNC server software with full functions? TightVNC is an open-source software for VNC with servers and clients. You can download the server software for Windows from TightVNC download page: http://www.tightvnc.com/download.php The software
Read more