10 ways to generate random passwords using Linux systems

One of the great advantages of the Linux operating system is that you can use up to hundreds of ways to implement it for the same thing. For example, you can generate random passwords in dozens of ways. This article describes 10 ways to generate a random password.

1. Use the SHA algorithm to encrypt the date and output the first 32 characters of the result:

1. Date +%s |sha256sum |base64 |head-c; echo

生成结果如下:

1. Ztnimgm0ndi5ogzjmwmxndlhzmjmngm4

2. Use the inline/dev/urandom and filter out characters that are not used everyday . This also outputs only the first 32 characters of the result:

1. </dev/urandom TR-DC _a-z-a-z-0-9 |head-c${1:-32};echo

生成结果如下:

1. Pdj0xwz7exd_qb5b27bwwsm1hrf3a7cj

3. Using the random function of OpenSSL

1. OpenSSL Rand-base64 32

生成结果如下:

1. ryjwqjltlayex3j7ncbir20h1k/0cnqlneunytscfko=

4. This method is similar to the previous Urandom, but it is reverse-working

1. TR-CD ' [: alnum:] ' </dev/urandom | fold-w32 | Head-n1;echo

生成结果如下:

1. Tpgudzf7sqtu4yyw2lvhmuqoziqi87

5. Use the string command to output a printable string from a file

1. Strings/dev/urandom | Grep-o ' [[: Alnum:]] ' | Head-n 32 | Tr-d ' \ n '; Echo

生成结果如下:

1. W4v1iqtkmq8sidd9jxdqnpg8hpmoz8

6. This is a simpler version of using Urandom

1. </dev/urandom TR-DC _a-z-a-z-0-9 | Head-c32;echo

生成结果如下:

1. Rmdlgspn_bm-izvfwz9bei0rf-jiy6gs

7. Use the very useful DD command

1. DD if=/dev/urandom bs=1 count=2>/dev/null | base64-w 0 | rev | Cut-b 2-| rev

生成结果如下:

1. 9+0rud4u3hmsdmlgd7j0sf/r09mzfdvbs28w+po2wca

8. You can even generate a password that can be entered with only the left hand

1. </dev/urandom tr-dc ' [email protected]#$%qwertqwertasdfgasdfgzxcvbzxcvb ' | Head-c32; Echo

生成结果如下:

1. Vtg3#tr4sagxg3z%##[email protected] $wdqF

9. If one of the above methods is used each time, the better way is to save it as a function. If you do, you can use RANDPW at any time to generate a random password after you run the command for the first time. Maybe you can save it in your ~/.BASHRC file.

1. RANDPW () { </dev/urandom tr-dc _a-z-a-z-0-9 | Head-c${1:-16};echo;}

生成结果如下:

1. Vgbx8cno950riykzrppya4bvbavzby_x

10. Finally, this method of generating random passwords is the simplest. It can also run under Windows with Cygwin installed. It can also be run under Mac OS x. I'm sure there will be complaints that this method generates a password that has no other method to be random. But in fact, if you use all the strings that it generates as passwords, that password is random enough.

1. Date | Md5sum

生成结果如下:

1. E0d057b46a9a78346cbd94b25e574e79-

1. Date | Base64

生成结果如下:

1. mjaxnow5tcawn+acicazmeaxpsdmmj/mnj/lm5sgmtc6mda6mzygq1nucg==

1. Ifconfig | Md5sum

生成结果如下:

1. 7c4243742aa515d45c12deca31428a95-

甚至你想生成一个核弹发射密码都可以,下面是一个生成长密码的例子;

1. Ifconfig | Base64

生成结果如下:

2. Zw0xicagicagiexpbmsgzw5jyxa6rxrozxjuzxqgiehxywrkcia3odoyqjpdqjoyqjpcmdo5ncag
4. ciagicagicagicbpbmv0igfkzhi6mtkylje2oc4zljugiejjyxn0oje5mi4xnjgumy4yntugie1h
6. C2s6mju1lji1ns4yntuumaogicagicagicagaw5lddygywrkcjogzmu4mdo6n2eyyjpjymzmomzl
8. Mmi6yja5nc82ncbty29wztpmaw5rciagicagicagicbvucbcuk9brenbu1qgulvotklorybnvuxu
10. Sunbu1qgie1uvtoxntawicbnzxryawm6mqogicagicagicagulggcgfja2v0czoymdy3nty0igvy
12. Cm9yczowigryb3bwzwq6mcbvdmvycnvuczowigzyyw1lojakicagicagicagifryihbhy2tldhm6
14. Odg2ndugzxjyb3jzojagzhjvchblzdowig92zxjydw5zojagy2fycmllcjowciagicagicagicbj
16. B2xsaxnpb25zojagdhhxdwv1zwxlbjoxmdawiaogicagicagicagulggynl0zxm6mjazndkzntex
18. Icgxotqumcbnauipicbuwcbiexrlczozmjuynzuxniaomzeumcbnauipcgpsbyagicagicagtglu
20. Ayblbmnhcdpmb2nhbcbmb29wymfjayagciagicagicagicbpbmv0igfkzhi6mti3ljaumc4xicbn
22. Yxnroji1ns4wljaumaogicagicagicagaw5lddygywrkcjogojoxlzeyocbty29wztpib3n0ciag
24. Icagicagicbvucbmt09qqkfdsybsvu5osu5hicbnvfu6mty0mzygie1ldhjpyzoxciagicagicag
26. Icbswcbwywnrzxrzoju2otkzmsblcnjvcnm6mcbkcm9wcgvkojagb3zlcnj1bnm6mcbmcmftztow
28. Ciagicagicagicbuwcbwywnrzxrzoju2otkzmsblcnjvcnm6mcbkcm9wcgvkojagb3zlcnj1bnm6
30. Mcbjyxjyawvyojakicagicagicagignvbgxpc2lvbnm6mcb0ehf1zxvlbgvuojagciagicagicag
32. Icbswcbiexrlczozmzezmdcxosaomzeunsbnauipicbuwcbiexrlczozmzezmdcxosaomzeunsbn
34. auipcgo=

10 ways to generate random passwords using Linux systems