銆銆鐪嬪埌寰堝鏈嬪弸閰嶇疆vsftpd鏃朵笉鑳戒嬌鐢ㄥ尶鍚嶇敤鎴蜂笂浼犲拰涓嬭澆錛堝垱寤虹洰褰曟垨鍒犻櫎銆侀噸鍛藉悕鏂囦歡澶癸級(jí)錛屾湰鏂囦富瑕佽В鍐硋sftpd鐨勫尶鍚嶇敤鎴鋒潈闄愰厤鍒墮棶棰樸?/span>
銆銆閰嶇疆瑕佹敞鎰忎笁閮ㄥ垎錛岃涓涓浠旂粏瀵圭収錛?/span>
銆銆1銆乿sftpd.conf鏂囦歡鐨勯厤緗?vi /etc/vsftpd/vsftpd.conf)
銆銆錛冨厑璁稿尶鍚嶇敤鎴風(fēng)櫥褰旻TP
銆銆anonymous_enable=YES
銆銆錛冭緗尶鍚嶇敤鎴風(fēng)殑鐧誨綍鐩綍錛堝闇瑕侊紝闇鑷繁娣誨姞騫朵慨鏀癸級(jí)
銆銆anon_root=/var/ftp/pub
銆銆錛冩墦寮鍖垮悕鐢ㄦ埛鐨勪笂浼犳潈闄?/span>
銆銆anon_upload_enable=YES
銆銆錛冩墦寮鍖垮悕鐢ㄦ埛鍒涘緩鐩綍鐨勬潈闄?/span>
銆銆anon_mkdir_write_enable=YES
銆銆錛冩墦寮鍖垮悕鐢ㄦ埛鍒犻櫎鍜岄噸鍛藉悕鐨勬潈闄愶紙濡傞渶瑕侊紝闇鑷繁娣誨姞錛?/span>
銆銆anon_other_write_enable=YES
銆銆#鍖垮悕鐢ㄦ埛鐨勬帺鐮侊紙濡傞渶瑕侊紝闇鑷繁娣誨姞錛屽惈涔夛細(xì)濡倁mask鏄?22,榪欐椂鍒涘緩涓涓潈闄愪負(fù)666鐨勬枃浠訛紝鏂囦歡鐨勫疄闄呮潈闄愪負(fù)666-022=644錛?/span>
銆銆anon_umask=022
銆銆2銆乫tp鐩綍鐨勬潈闄愯緗?/span>
銆銆榛樿鎯呭喌涓嬶紝ftp鐨勬牴鐩綍涓?var/ftp錛屼負(fù)浜?jiǎn)瀹夊叏锛寴q欎釜鐩綍榛樿涓嶅厑璁歌緗負(fù)777鏉冮檺錛屽惁鍒檉tp灝嗘棤娉曡闂備絾鏄垜浠鍖垮悕涓婁紶鏂囦歡錛岄渶瑕?#8220;other”鐢ㄦ埛鐨勫啓鏉冮檺錛屾紜殑鍋氭硶錛?/span>
銆銆鍦?var/ftp涓緩绔嬩竴涓猽pload錛堝悕瀛愯嚜宸辮搗鍚э級(jí)鏂囦歡澶癸紝灝嗕釜鏂囦歡澶規(guī)潈闄愯緗負(fù)777錛堣鍏蜂綋闇瑕佽嚜宸辮錛夛紝鍦╱pload榪欎釜鏂囦歡澶逛腑錛屽尶鍚嶇敤鎴峰彲浠ヤ笂浼犳枃浠躲佸垱寤烘枃浠跺す銆佸垹闄ゆ枃浠剁瓑銆?/span>
銆銆涓鑸嚦姝わ紝渚垮疄鐜皏sftpd鍖垮悕鐢ㄦ埛鐨勪笂浼犱笅杞戒簡(jiǎn)銆傚鏋滆繕?shù)笉琛屽Q屽氨鏄笅闈㈢殑闂銆?/span>
銆銆3銆乻elinux鐨勯厤緗?/span>
銆銆SELinux(Security-Enhanced Linux) 鏄編鍥藉浗瀹跺畨鍏ㄥ眬錛圢AS錛夊浜庡己鍒惰闂帶鍒剁殑瀹炵幇錛屾槸 Linux涓婃渶鏉板嚭鐨勬柊瀹夊叏瀛愮郴緇熴侼SA鏄湪Linux紺懼尯鐨勫府鍔╀笅寮鍙戜簡(jiǎn)涓縐嶈闂帶鍒朵綋緋伙紝鍦ㄨ繖縐嶈闂帶鍒朵綋緋葷殑闄愬埗涓嬶紝榪涚▼鍙兘璁塊棶閭ｄ簺鍦ㄤ粬鐨勪換鍔′腑鎵闇瑕佹枃浠躲係ELinux 榛樿瀹夎鍦?Fedora 鍜?Red Hat Enterprise Linux 涓婏紝涔熷彲浠ヤ綔涓哄叾浠栧彂琛岀増涓婂鏄撳畨瑁呯殑鍖呭緱鍒般?/span>
銆銆鏈綆鍗曠殑鍔炴硶錛屽叧闂璼elinux
銆銆鏂規(guī)硶1錛氫慨鏀?etc/selinux/config鏂囦歡涓殑SELINUX="" 涓?disabled 錛岀劧鍚庨噸鍚?/span>
銆銆鏂規(guī)硶2錛氱敤鍛戒護(hù)setenforce 0錛屾棤闇閲嶅惎銆傦紙setenforce鐨勬牸寮忥細(xì)setenforce [ Enforcing | Permissive | 1 | 0 ]錛?/span>
銆銆鏂規(guī)硶3錛氬湪lilo鎴栬単rub鐨勫惎鍔ㄥ弬鏁頒腑澧炲姞錛歴elinux=0,涔熷彲浠ュ叧闂璼elinux銆?/span>
銆銆浣跨敤getenforce鏌ョ湅褰撳墠selinux鏄惁姝ｅ湪榪愯銆?/span>
銆銆涓嶅叧闂璼elinux錛屽氨瑕佽緗畇elinux鐨刦tp鏉冮檺銆?/span>
銆銆1銆佷嬌鐢╣etsebool -a | grep ftp鏌ョ湅ftp鐩稿叧璁劇疆鐘舵侊紝鎴戜滑瑕佸皢allow_ftpd_anon_write璁句負(fù)on銆?/span>
銆銆2銆佷嬌鐢╯etsebool -P 榪涜璁劇疆銆備緥錛歴etsebool -P allow_ftpd_anon_write=on銆?/span>
銆銆銆鎴栦嬌鐢╰ogglesebool榪涜bool鍊煎彇鍙嶏紝渚嬪togglesebool銆allow_ftpd_anon_write銆?/span>
銆銆3銆佷慨鏀箂elinux瀹夊叏涓婁笅鏂囷紝鍏堜粙緇嶄袱涓懡浠わ細(xì)
銆銆銆鍛戒護(hù)1銆乴s -Z銆銆ps -Z銆銆id -Z銆銆# 鍒嗗埆鍙互鐪嬪埌鏂囦歡,榪涚▼鍜岀敤鎴風(fēng)殑SELinux灞炴?/span>
銆銆銆鍛戒護(hù)2銆?chcon 鏀瑰彉SELinux瀹夊叏涓婁笅鏂?/span>
銆銆銆chcon -u 瀵硅薄
銆銆銆銆銆銆銆-r
銆銆銆銆銆銆銆-t
銆銆銆銆銆銆銆-R 閫掑綊
銆銆銆銆銆銆銆--reference 婧愭枃浠?鐩爣鏂囦歡 # 澶嶅埗瀹夊叏涓婁笅鏂?/span>
銆銆銆浣跨敤鏂規(guī)硶錛?/span>
銆銆銆銆姝ラ1銆乴s -Zd /var/ftp/upload/ 閫氬父浼?xì)鐪嬪垘图?xì)
銆銆銆銆銆drwxr-xr-x ftp root system_u:object_r:public_content_t /var/ftp/upload/
銆銆銆銆姝ラ2銆乧hcon -R -t public_content_rw_t /var/ftp/upload/
銆銆銆銆姝ラ3銆乴s -Zd /var/ftp/upload/ 濡傛灉鐪嬪埌濡備笅淇℃伅灝監(jiān)K浜?jiǎn)锛?xì)
銆銆銆銆銆drwxr-xr-x ftp root system_u:object_r:public_content_rw_t /var/ftp/upload/
銆銆鏈鍚庤繕鏄噸鍚笅selinux鍜寁sftpd鍚э紝涓嶉噸鍚叾瀹炰篃娌″叧緋匯傞噸鏂扮櫥褰曞埌ftp涓婏紝搴旇灝辮兘瑙ｅ喅闂?shù)簡(jiǎn)銆?/span>
銆銆鍙︼紝selinux鐨勫浘褰㈢晫闈?鍙敱system-config-selinux鍛戒護(hù)榪涘叆銆?/span>
鍏典復(fù)鍩庝笅 2012-05-13 14:16 鍙戣〃璇勮
]]>int binarySearch(int a[],int len,int value)
{
int low = 0;
int high = len -1;
while(low<=high) //娉ㄦ剰鎼滅儲(chǔ)鏉′歡錛屾湁鍙兘涓よ呬細(xì)鐩哥瓑
{
int mid = (low+high)/2;
if(a[mid]==value) return mid;
else if(a[mid]>value) high = mid -1;
else low = mid + 1;
}
return -1;
}
int main()
{
int a[] = {1,2,3,4,5,6,7,8,9,10};
int rec = binarySearch(a,10,4);
if(rec==-1)
printf("Not found\n");
else
printf("value is found %d \n",rec);
return 0;
}
int low = 0;
int high = len -1;
while(low<=high) //娉ㄦ剰鎼滅儲(chǔ)鏉′歡錛屾湁鍙兘涓よ呬細(xì)鐩哥瓑
{
int mid = (low+high)/2;
if(a[mid]==value) return mid;
else if(a[mid]>value) high = mid -1;
else low = mid + 1;
}
return -1;
}
int main()
{
int a[] = {1,2,3,4,5,6,7,8,9,10};
int rec = binarySearch(a,10,4);
if(rec==-1)
printf("Not found\n");
else
printf("value is found %d \n",rec);
return 0;
}
蹇熸帓搴?br /> 瀵瑰啋娉＄畻娉曠殑鎵╁睍
int partition(int a[],int low,int high)
{
int temp = a[low];
while(low<high)
{
while(low<high && a[high]>=temp) --high;
a[low] = a[high];
while(low<high && a[low]<=temp) ++low;
a[high] = a[low];
}
a[low] = temp;
return low;
}
void Qsort(int a[],int begin,int end)
{
int rec;
if(begin<end)
{
rec = partition(a,begin,end);
printf("rec is %d\n",rec);
Qsort(a,begin,rec-1);
Qsort(a,rec+1,end);
}
}
int main()
{
int a[] = {1,4,0,-3,90,7,9,23};
Qsort(a,0,7);
int i =0;
for(;i<8;i++)
printf("%d\t",a[i]);
return 0;
}
int temp = a[low];
while(low<high)
{
while(low<high && a[high]>=temp) --high;
a[low] = a[high];
while(low<high && a[low]<=temp) ++low;
a[high] = a[low];
}
a[low] = temp;
return low;
}
void Qsort(int a[],int begin,int end)
{
int rec;
if(begin<end)
{
rec = partition(a,begin,end);
printf("rec is %d\n",rec);
Qsort(a,begin,rec-1);
Qsort(a,rec+1,end);
}
}
int main()
{
int a[] = {1,4,0,-3,90,7,9,23};
Qsort(a,0,7);
int i =0;
for(;i<8;i++)
printf("%d\t",a[i]);
return 0;
}
鍏典復(fù)鍩庝笅 2011-08-19 18:28 鍙戣〃璇勮
]]>鍏典復(fù)鍩庝笅 2010-04-19 13:05 鍙戣〃璇勮
]]>鍏典復(fù)鍩庝笅 2010-04-07 11:11 鍙戣〃璇勮
]]>鍏典復(fù)鍩庝笅 2010-04-06 10:31 鍙戣〃璇勮
]]>鍏典復(fù)鍩庝笅 2010-03-21 15:34 鍙戣〃璇勮
]]>